CIT for SMEs, BOI Companies, and Foreign Branches

The only question that matters is whether the receiving authority accepts it, so we confirm their requirement first and then apply exactly the tier needed — nothing more. 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. 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. 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. Request more than one certified set when several authorities are involved, because most receiving offices keep the certified copy and do not return it. 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. Send your documents for a free assessment at +66-83-249-4999 or contact@nyconlinetranslation.com. 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: 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.

Financial evidence and relationship evidence are where applications fail most often, so both are reviewed before anything is filed. 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. 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. 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.

We state the realistic turnaround and price before accepting, and we decline work we know the destination will reject. 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. 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. 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. 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.

Electronic documents must be traceable to their source, so deliverables ship with an audit trail whenever the receiving party asks for one. One coordinator owns the matter end to end and reports progress by LINE or email at the intervals you set. 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: 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. 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: government fees follow the authority's published rate and are separate from professional fees; check the current rate on the official website first. 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.

Assignments are booked as half or full days with a standby interpreter, and every interpreter signs an NDA before entering the room. 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. 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: 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: 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.

Certification tiers are separated up front — agency Certified True Translation, Notary Public seal, MFA consular legalization, and Apostille (not yet available in Thailand — accession deposited 30 Jun 2026, in force 28 February 2027). 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. 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. 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. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

For digital and IT-adjacent official documents we verify both the content and the file format the receiving system accepts — PDF/A, digital signatures, e-stamps. 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. 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. 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. 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. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

Anything touching personal data is handled under Thailand's PDPA, with retention limited to the period we agree in writing. 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. 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. 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. 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. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

Every nationality has a different document order, so we issue a nationality-specific checklist instead of one generic list. Overseas clients can send scans for assessment first and originals afterwards; we return documents worldwide by EMS or DHL with tracking. Talk to the NYC Legal team on any business day — you get a working plan, not a generic price list. 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: 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. Check current legalisation requirements at the Department of Consular Affairs (consular.mfa.go.th) and Apostille membership at hcch.net.

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. 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. 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.

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. 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: 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. 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.

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. 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. 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.

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: 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. 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.

Trademarks are registered with the Department of Intellectual Property under the Trademark Act B.E. 2534 (1991) for renewable ten-year terms, while copyright arises automatically on creation under the Copyright Act B.E. 2537 (1994) — recordation with the DIP is supporting evidence, not the source of the right. 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. 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.

Trademarks are registered with the Department of Intellectual Property under the Trademark Act B.E. 2534 (1991) for renewable ten-year terms, while copyright arises automatically on creation under the Copyright Act B.E. 2537 (1994) — recordation with the DIP is supporting evidence, not the source of the right. 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: 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.

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. Financial statements and tax documents used abroad should be the auditor-certified version, and the translation must state the currency and the accounting standard applied. 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. 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. 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: 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. Financial statements and tax documents used abroad should be the auditor-certified version, and the translation must state the currency and the accounting standard applied. Caution: tax and financial data are sensitive — send them through a controlled channel and limit access to the people who need it. 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. 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: 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 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. 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: 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. Thai companies file audited financial statements with the Department of Business Development and form P.N.D.50 with the Revenue Department within the statutory window after the accounting year end. 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. 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: 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. VAT-registered operators file form P.P.30 monthly and maintain input/output tax reports that agree with the tax invoices issued and received in that month. Caution: late or incomplete filings attract surcharges and penalties under Thai law; keep a monthly and annual filing calendar. 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 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. 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. 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).

Accounting and tax documents — audited financial statements, tax payment receipts or a certificate of tax residence (R.O.22) — must be translated, have the translation certified and be legalised at the Department of Consular Affairs before any destination-embassy step, as required by the receiving party. 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: rates, allowances and temporary measures change periodically — confirm against the latest Revenue Department notification before relying on any figure. 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. Thai companies file audited financial statements with the Department of Business Development and form P.N.D.50 with the Revenue Department within the statutory window after the accounting year end. 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 business with turnover above THB 1.8 million per year must register for VAT with the Revenue Department and file the monthly PP.30 return by the 15th of the following month; e-Filing carries an extension under the Ministry of Finance notification in force. 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: 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. Thai companies file audited financial statements with the Department of Business Development and form P.N.D.50 with the Revenue Department within the statutory window after the accounting year end. 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 business with turnover above THB 1.8 million per year must register for VAT with the Revenue Department and file the monthly PP.30 return by the 15th of the following month; e-Filing carries an extension under the Ministry of Finance notification in force. Keep each document paired with its ledger entry and check that the tax ID and registered name match on every page. 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).

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. Keep each document paired with its ledger entry and check that the tax ID and registered name match on every page. 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. Thai companies file audited financial statements with the Department of Business Development and form P.N.D.50 with the Revenue Department within the statutory window after the accounting year end. 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. Keep each document paired with its ledger entry and check that the tax ID and registered name match on every page. 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 business with turnover above THB 1.8 million per year must register for VAT with the Revenue Department and file the monthly PP.30 return by the 15th of the following month; e-Filing carries an extension under the Ministry of Finance notification in force. 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. Thai companies file audited financial statements with the Department of Business Development and form P.N.D.50 with the Revenue Department within the statutory window after the accounting year end. 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. 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. Caution: accounting source documents must be retained for the statutory period — destroying them early leaves you without evidence in a retrospective audit. Verify forms and deadlines with the Revenue Department (rd.go.th) and financial-statement requirements with the Department of Business Development (dbd.go.th).