Thailand WHT Compliance for Payments to Suppliers & Overseas

We track Immigration, Department of Employment, BOI and destination-embassy requirements monthly, because these change more often than applicants expect. Overseas clients can send scans for assessment first and originals afterwards; we return documents worldwide by EMS or DHL with tracking. Send your documents for a free assessment at +66-83-249-4999 or contact@nyconlinetranslation.com. Request more than one certified set when several authorities are involved, because most receiving offices keep the certified copy and do not return it. Caution: never unbind, trim or separate pages after an authority has sealed the set — doing so voids the certification. Private documents such as powers of attorney or contracts must first pass a notarial services attorney before they can enter the legalisation stage. Caution: government fees follow the authority's published rate and are separate from professional fees; check the current rate on the official website first. Send scans of every page for review before sending originals; that is when faded seals, passport-spelling mismatches and expired documents can still be corrected. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

We route each file to the right credential: NAATI for Australia, Ministry of Justice registered translators for Thai court work, and embassy sworn translators for European destinations. If the receiving authority rejects a file for a reason attributable to our work, we correct and re-file it at no additional professional fee. Tell us where the document will be used and you will get a plan and a price the same business day. The workable order is: check that the source document is complete and legible, translate it, certify the translation, file for legalisation with the Department of Consular Affairs, then obtain the destination embassy's certification — or an Apostille where the destination is a convention party. Caution: government fees follow the authority's published rate and are separate from professional fees; check the current rate on the official website first. Keep a digital copy of the finished certified set so it can be referenced if the destination asks for additional documents or a re-filing. Caution: each certification covers only what its own stamp states; it does not make a document automatically acceptable everywhere. Confirm the receiving authority's conditions case by case. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

For transport-regulator filings, units, figures and reference codes get a dedicated second verification pass. Government fees follow each authority's published rate, while professional fees are quoted per case by document count and destination, in full before work starts. Send your documents for a free assessment at +66-83-249-4999 or contact@nyconlinetranslation.com. Fix three facts before any work starts: the destination country, the exact authority the file goes to, and the language that authority requires. Those three decide the whole certification chain. Caution: processing time depends on each authority's queue, so allow buffer before the date the document is actually needed. Send scans of every page for review before sending originals; that is when faded seals, passport-spelling mismatches and expired documents can still be corrected. Caution: each certification covers only what its own stamp states; it does not make a document automatically acceptable everywhere. Confirm the receiving authority's conditions case by case. Private documents such as powers of attorney or contracts must first pass a notarial services attorney before they can enter the legalisation stage. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

Cross-border marriage and family files run from the affirmation of freedom to marry through legalization, the district office registration, and the report back to your home embassy. Processing time depends on each authority's queue, so the working order and the expected return date are confirmed before any work begins. Tell us where the document will be used and you will get a plan and a price the same business day. Send scans of every page for review before sending originals; that is when faded seals, passport-spelling mismatches and expired documents can still be corrected. Caution: processing time depends on each authority's queue, so allow buffer before the date the document is actually needed. Request more than one certified set when several authorities are involved, because most receiving offices keep the certified copy and do not return it. Caution: never unbind, trim or separate pages after an authority has sealed the set — doing so voids the certification. The workable order is: check that the source document is complete and legible, translate it, certify the translation, file for legalisation with the Department of Consular Affairs, then obtain the destination embassy's certification — or an Apostille where the destination is a convention party. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

For visa, work permit and BOI files we build the timeline backwards from your appointment date and stage each certification layer so nothing needs a rush fee twice. If the receiving authority rejects a file for a reason attributable to our work, we correct and re-file it at no additional professional fee. Tell us where the document will be used and you will get a plan and a price the same business day. Fix three facts before any work starts: the destination country, the exact authority the file goes to, and the language that authority requires. Those three decide the whole certification chain. Caution: never unbind, trim or separate pages after an authority has sealed the set — doing so voids the certification. Private documents such as powers of attorney or contracts must first pass a notarial services attorney before they can enter the legalisation stage. Caution: processing time depends on each authority's queue, so allow buffer before the date the document is actually needed. Send scans of every page for review before sending originals; that is when faded seals, passport-spelling mismatches and expired documents can still be corrected. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

Every certified file passes three hands: a native-speaking translator, a subject-matter reviewer, and the responsible attorney who signs the certification page. If the receiving authority rejects a file for a reason attributable to our work, we correct and re-file it at no additional professional fee. Tell us where the document will be used and you will get a plan and a price the same business day. Send scans of every page for review before sending originals; that is when faded seals, passport-spelling mismatches and expired documents can still be corrected. Caution: government fees follow the authority's published rate and are separate from professional fees; check the current rate on the official website first. Fix three facts before any work starts: the destination country, the exact authority the file goes to, and the language that authority requires. Those three decide the whole certification chain. Caution: each certification covers only what its own stamp states; it does not make a document automatically acceptable everywhere. Confirm the receiving authority's conditions case by case. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

The jobs others decline — rare languages, low-traffic embassies, hard-to-read archival documents — are assessed case by case with an honest feasibility answer. If the receiving authority rejects a file for a reason attributable to our work, we correct and re-file it at no additional professional fee. Talk to the NYC Legal team on any business day — you get a working plan, not a generic price list. Send scans of every page for review before sending originals; that is when faded seals, passport-spelling mismatches and expired documents can still be corrected. Caution: never unbind, trim or separate pages after an authority has sealed the set — doing so voids the certification. The workable order is: check that the source document is complete and legible, translate it, certify the translation, file for legalisation with the Department of Consular Affairs, then obtain the destination embassy's certification — or an Apostille where the destination is a convention party. Caution: government fees follow the authority's published rate and are separate from professional fees; check the current rate on the official website first. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

Company name, director names and registered address are cross-checked across every document, because a single spelling mismatch triggers a rejection. One coordinator owns the matter end to end and reports progress by LINE or email at the intervals you set. Tell us where the document will be used and you will get a plan and a price the same business day. Request more than one certified set when several authorities are involved, because most receiving offices keep the certified copy and do not return it. Caution: processing time depends on each authority's queue, so allow buffer before the date the document is actually needed. Private documents such as powers of attorney or contracts must first pass a notarial services attorney before they can enter the legalisation stage. Caution: each certification covers only what its own stamp states; it does not make a document automatically acceptable everywhere. Confirm the receiving authority's conditions case by case. The workable order is: check that the source document is complete and legible, translate it, certify the translation, file for legalisation with the Department of Consular Affairs, then obtain the destination embassy's certification — or an Apostille where the destination is a convention party. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

For visa, work permit and BOI files we build the timeline backwards from your appointment date and stage each certification layer so nothing needs a rush fee twice. Quotations separate government fees from professional fees line by line, so nothing appears on the invoice that was not in the quote. Tell us where the document will be used and you will get a plan and a price the same business day. Private documents such as powers of attorney or contracts must first pass a notarial services attorney before they can enter the legalisation stage. Caution: each certification covers only what its own stamp states; it does not make a document automatically acceptable everywhere. Confirm the receiving authority's conditions case by case. Request more than one certified set when several authorities are involved, because most receiving offices keep the certified copy and do not return it. Caution: government fees follow the authority's published rate and are separate from professional fees; check the current rate on the official website first. Keep a digital copy of the finished certified set so it can be referenced if the destination asks for additional documents or a re-filing. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

We provide an interpreter and an escort on the day itself, because the counter stage is where most applicants lose a trip. Government fees follow each authority's published rate, while professional fees are quoted per case by document count and destination, in full before work starts. Talk to the NYC Legal team on any business day — you get a working plan, not a generic price list. Fix three facts before any work starts: the destination country, the exact authority the file goes to, and the language that authority requires. Those three decide the whole certification chain. Caution: each certification covers only what its own stamp states; it does not make a document automatically acceptable everywhere. Confirm the receiving authority's conditions case by case. Send scans of every page for review before sending originals; that is when faded seals, passport-spelling mismatches and expired documents can still be corrected. Caution: never unbind, trim or separate pages after an authority has sealed the set — doing so voids the certification. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

A business whose turnover exceeds THB 1.8 million per year must register for VAT with the Revenue Department, while a juristic person files the half-year (PND.51) and annual (PND.50) corporate income tax returns within the deadlines set by the Revenue Code. Confirm with the receiving authority or counterparty which document they need, how recent it must be and whether a translation is required, before work begins. Watch out: using Thai nominee shareholders to disguise foreign ownership is an offence under the Foreign Business Act. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. Where the bundle is for overseas use, sequence it as translation, certification, legalisation at the Department of Consular Affairs, then the destination embassy — and count the sets needed for every receiving body. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

Under the Accounting Act B.E. 2543 (2000) a Thai juristic person must keep accounts, appoint a bookkeeper, have the financial statements audited by a licensed CPA and submit them to the DBD through DBD e-Filing within the deadline for each accounting period. A practical order is: settle the shareholding structure and objectives first, gather director and shareholder identity documents, file with the responsible authority, then keep the certified output for the next step. Watch out: using Thai nominee shareholders to disguise foreign ownership is an offence under the Foreign Business Act. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. Where the bundle is for overseas use, sequence it as translation, certification, legalisation at the Department of Consular Affairs, then the destination embassy — and count the sets needed for every receiving body. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

The annual corporate calendar covers closing the accounts, holding the annual general meeting, filing the shareholder list (BorOrJor.5) and financial statements with the DBD, and filing tax returns with the Revenue Department — each deadline runs from the company's own year-end, so confirm dates with the authority each year. Confirm with the receiving authority or counterparty which document they need, how recent it must be and whether a translation is required, before work begins. Watch out: rely on official sources rather than third-party sites, since forms and practice are updated periodically. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. Confirm from the affidavit who the authorised directors are and how many must sign jointly, before drafting any power of attorney or corporate certificate. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

The Personal Data Protection Act B.E. 2562 (2019) has applied in full since 1 June 2022: controllers need a lawful basis, must give notice of purpose, keep records of processing activities and appoint a Data Protection Officer in the cases the Act specifies, with the PDPC as regulator. Confirm with the receiving authority or counterparty which document they need, how recent it must be and whether a translation is required, before work begins. Watch out: receiving parties often accept a company affidavit only if issued within the last three to six months — obtain a fresh extract before use. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. Where the bundle is for overseas use, sequence it as translation, certification, legalisation at the Department of Consular Affairs, then the destination embassy — and count the sets needed for every receiving body. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

Corporate documents for overseas use normally start with a certified DBD extract, then translation, then legalisation by the Department of Consular Affairs and/or the destination embassy; Thailand's accession to the Apostille Convention took effect on 2 December 2025, which changes the chain for member states. A practical order is: settle the shareholding structure and objectives first, gather director and shareholder identity documents, file with the responsible authority, then keep the certified output for the next step. Watch out: inconsistent English spellings of the company name are the most common cause of rejection — keep one spelling throughout. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. Where the bundle is for overseas use, sequence it as translation, certification, legalisation at the Department of Consular Affairs, then the destination embassy — and count the sets needed for every receiving body. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

Corporate documents for overseas use normally start with a certified DBD extract, then translation, then legalisation by the Department of Consular Affairs and/or the destination embassy; Thailand's accession to the Apostille Convention took effect on 2 December 2025, which changes the chain for member states. Keep the bundle paired original-to-translation and make sure the English company name matches the registered one on every page. Watch out: inconsistent English spellings of the company name are the most common cause of rejection — keep one spelling throughout. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. In practice you obtain a current company affidavit and the related registry documents from the Department of Business Development, then send them for translation and certification in the form the destination requires. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

The registered address must be a real, contactable location backed by proof of use (such as a consent letter and title/lease evidence) both at DBD registration and at VAT registration with the Revenue Department; a move must be updated consistently with every authority. A practical order is: settle the shareholding structure and objectives first, gather director and shareholder identity documents, file with the responsible authority, then keep the certified output for the next step. Watch out: rely on official sources rather than third-party sites, since forms and practice are updated periodically. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. Where the bundle is for overseas use, sequence it as translation, certification, legalisation at the Department of Consular Affairs, then the destination embassy — and count the sets needed for every receiving body. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

A private limited company is registered with the Department of Business Development (DBD) under the Civil and Commercial Code, which since 7 February 2023 requires a minimum of two promoters, and filings can be made through the DBD e-Registration system. Keep the bundle paired original-to-translation and make sure the English company name matches the registered one on every page. Watch out: late or missed financial-statement and tax filings carry statutory fines and can affect financing and other licence applications. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. Where the bundle is for overseas use, sequence it as translation, certification, legalisation at the Department of Consular Affairs, then the destination embassy — and count the sets needed for every receiving body. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

A private limited company is registered with the Department of Business Development (DBD) under the Civil and Commercial Code, which since 7 February 2023 requires a minimum of two promoters, and filings can be made through the DBD e-Registration system. Confirm with the receiving authority or counterparty which document they need, how recent it must be and whether a translation is required, before work begins. Watch out: late or missed financial-statement and tax filings carry statutory fines and can affect financing and other licence applications. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. The corporate bundle destinations usually ask for together is the affidavit or shareholder list, the memorandum of association, the VAT registration (PP.20) and the latest financial statements — prepare them together so they can be translated in one pass. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

Majority foreign ownership in activities listed under the Foreign Business Act B.E. 2542 (1999) requires a licence or certificate, unless the company qualifies under a treaty (such as the Thailand–US Treaty of Amity) or holds BOI investment promotion. Where a filing or year-end deadline applies, allow time for corrections and re-certification. Watch out: receiving parties often accept a company affidavit only if issued within the last three to six months — obtain a fresh extract before use. Verify current requirements with the DBD (dbd.go.th), the Revenue Department (rd.go.th), the BOI (boi.go.th), the DIP (ipthailand.go.th), the PDPC (pdpc.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on scope and documents involved — ask our team by phone, LINE or email. Confirm from the affidavit who the authorised directors are and how many must sign jointly, before drafting any power of attorney or corporate certificate. Caution: the English company name must be the one registered with the Department of Business Development; a freshly translated name makes the documents read as a different legal entity. Verify corporate records at the Department of Business Development (dbd.go.th), tax matters at the Revenue Department (rd.go.th), and legalisation at consular.mfa.go.th.

The payer must withhold tax according to the type of income, issue the withholding certificate (form 50 Tavi) to the payee and remit it on PND.3 (individual payees) or PND.53 (juristic payees) by the 7th of the following month, with an extension when filing electronically. If a loan, licence renewal or visa application depends on the figures, allow lead time to close the books and obtain certified copies. Watch out: failing to hold the AGM on time or to submit financial statements carries fines for both the company and its directors. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. If financial statements or tax-payment certificates will be used abroad, plan translation and legalisation at the moment you request the documents, not afterwards. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

Late filing or underpayment attracts a surcharge of 1.5% per month of the tax due under the Revenue Code, plus penalties depending on the return type, while failure to submit financial statements to the DBD carries fines under the Accounting Act. A practical order is: confirm the accounting period and which taxes apply, collect source documents (tax invoices, receipts, payslips), reconcile against bank records, then file and keep the filing evidence. Watch out: failing to hold the AGM on time or to submit financial statements carries fines for both the company and its directors. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. In practice, assemble the source documents first — input and output tax invoices, receipts, bank statements and related contracts — then post them by period so the ledger reconciles with the return you are about to file. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

The Revenue Department accepts returns and payments through e-Filing and supports e-Tax Invoice and e-Receipt for approved operators, which requires a digital certificate and data retention under the criteria the department publishes. Keep each document paired with its ledger entry and check that the tax ID and registered name match on every page. Watch out: failing to hold the AGM on time or to submit financial statements carries fines for both the company and its directors. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. Withholding tax requires a withholding certificate for every payee, remitted with form P.N.D.3 or P.N.D.53 depending on the payee type, by the statutory date in the following month. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

A person present in Thailand for 180 days or more in a tax year is a tax resident; under Revenue Departmental Instructions Paw.161/2566 and Paw.162/2566, foreign-sourced income brought into Thailand from tax year 2024 onward is assessable, subject to relief under the applicable double tax agreement. If a loan, licence renewal or visa application depends on the figures, allow lead time to close the books and obtain certified copies. Watch out: failing to hold the AGM on time or to submit financial statements carries fines for both the company and its directors. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. Withholding tax requires a withholding certificate for every payee, remitted with form P.N.D.3 or P.N.D.53 depending on the payee type, by the statutory date in the following month. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

The Accounting Act B.E. 2543 (2000) requires the person with the duty to keep accounts to appoint a qualified bookkeeper, record transactions under the applicable financial reporting standards and retain the accounts and supporting documents for at least five years. Keep each document paired with its ledger entry and check that the tax ID and registered name match on every page. Watch out: withholding at the wrong rate or remitting late triggers the 1.5% monthly surcharge and an amended return. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. If financial statements or tax-payment certificates will be used abroad, plan translation and legalisation at the moment you request the documents, not afterwards. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

A limited company's financial statements must be audited and opined on by a CPA registered with the Federation of Accounting Professions, approved at an annual general meeting held within four months of the year end, and submitted to the DBD via DBD e-Filing within one month of that approval. A practical order is: confirm the accounting period and which taxes apply, collect source documents (tax invoices, receipts, payslips), reconcile against bank records, then file and keep the filing evidence. Watch out: a tax invoice missing any particular required by the Revenue Code can cost you the input VAT credit. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. In practice, assemble the source documents first — input and output tax invoices, receipts, bank statements and related contracts — then post them by period so the ledger reconciles with the return you are about to file. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

A juristic person files the half-year corporate income tax return (PND.51) within two months of the end of the first six months, and the annual return (PND.50) with audited financial statements within 150 days of the accounting-period end, under the Revenue Code. A practical order is: confirm the accounting period and which taxes apply, collect source documents (tax invoices, receipts, payslips), reconcile against bank records, then file and keep the filing evidence. Watch out: a tax invoice missing any particular required by the Revenue Code can cost you the input VAT credit. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. If financial statements or tax-payment certificates will be used abroad, plan translation and legalisation at the moment you request the documents, not afterwards. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

Personal income tax is filed on PND.90 or PND.91 by 31 March of the following year — online filing receives an extension announced by the Revenue Department — and certain income types also require the half-year PND.94 return. A practical order is: confirm the accounting period and which taxes apply, collect source documents (tax invoices, receipts, payslips), reconcile against bank records, then file and keep the filing evidence. Watch out: expenses without documentation identifying the recipient are commonly added back as non-deductible for corporate income tax. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. Withholding tax requires a withholding certificate for every payee, remitted with form P.N.D.3 or P.N.D.53 depending on the payee type, by the statutory date in the following month. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

A juristic person files the half-year corporate income tax return (PND.51) within two months of the end of the first six months, and the annual return (PND.50) with audited financial statements within 150 days of the accounting-period end, under the Revenue Code. If a loan, licence renewal or visa application depends on the figures, allow lead time to close the books and obtain certified copies. Watch out: failing to hold the AGM on time or to submit financial statements carries fines for both the company and its directors. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. Foreign nationals earning income in Thailand should first establish their tax-residency status by counting days of presence in the tax year, because that status determines which income must be brought into the calculation. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).

Sections 71 bis and 71 ter of the Revenue Code require related companies with revenue of THB 200 million or more in an accounting period to file the transfer pricing disclosure form together with PND.50 and to have a local file ready when the tax officer requests it. If a loan, licence renewal or visa application depends on the figures, allow lead time to close the books and obtain certified copies. Watch out: a tax invoice missing any particular required by the Revenue Code can cost you the input VAT credit. Verify current rules and forms with the Revenue Department (rd.go.th), the DBD (dbd.go.th), the Social Security Office (sso.go.th), the Federation of Accounting Professions (tfac.or.th) and the Department of Consular Affairs (consular.mfa.go.th). Professional fees are quoted per case based on document volume and scope — ask our team by phone, LINE or email. Withholding tax requires a withholding certificate for every payee, remitted with form P.N.D.3 or P.N.D.53 depending on the payee type, by the statutory date in the following month. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).