20 tax service areas for individuals and corporates.
Our workflow is aligned with the Department of Consular Affairs, Ministry of Foreign Affairs (MFA Chaeng Watthana) and the published requirements of each destination embassy or consulate. We track changes weekly directly from the originating authorities so the steps you see here reflect what actually clears today — not what was published years ago.
Our Tax Advisory & Compliance desk handles one of the highest request volumes in the firm — currently spanning 20 primary categories, each with its own evidentiary checklist, certification chain, and turnaround. Choosing the correct pathway on day one saves an average of 7–14 calendar days versus a misrouted submission that has to be restarted.
Because tax advisory & compliance sits at the intersection of Thai administrative law and the destination authority's evidentiary rules, the cost of a misstep is rarely the filing fee — it is the lost window. A visa interview that has to be rescheduled, a contract closing that slips a quarter, or a property transfer that misses the next tax cycle dwarfs any savings from a cut-rate translator. Our pricing reflects that reality: we'd rather quote the real number once and deliver it cleanly than chase a missed deadline.
Our standard workflow has five gates: (1) source-document assessment and pathway recommendation within one business hour; (2) preparation and certified translation by registered translators; (3) notarisation by a licensed Notarial Services Attorney; (4) MFA Chaeng Watthana submission with daily tracking; (5) destination embassy or consulate endorsement, with the final dossier hand-delivered or shipped back to you under signature.
Tax Advisory & Compliance matters most when the filing window is narrow and the receiving authority applies its checklist strictly. Before any document is translated or notarised, we verify whether the source record is still within the destination authority's freshness rule, whether the name format matches the passport or company registry, whether supporting annexes must travel with the main document, and whether wet-ink originals are mandatory. This pre-flight stage is where most avoidable delays are prevented.
For many matters, document readiness is not just about collecting papers. It includes sequencing. Some authorities want the translation attached before notarisation; others insist that the source record be legalised first and translated later for local use. Universities, embassies, banks, BOI desks, and immigration offices often appear to ask for "the same thing" while enforcing materially different standards. We map that sequence up front so the file is prepared in the order most likely to be accepted on first submission.
The most common cause of rejection for first-time clients is using a source certificate that fails the destination authority's freshness rule (Thai household registrations older than six months, for example), translations missing the translator's licence number, or chain-of-certification steps performed in the wrong order. We screen for all three before any fees are incurred.
All fees appear in a single transparent quote that bundles government charges, courier (EMS/Kerry), and attorney work — no hidden surcharges. Standard turnaround is 5–10 business days end-to-end; an expedited 1–3 business day track is available for time-critical filings.
Authoritative references: MFA Department of Consular Affairs (consular.mfa.go.th), Hague Conference on Private International Law (hcch.net), Lawyers' Council of Thailand (lawyerscouncil.or.th).
Every tax advisory & compliance file we handle moves through a named-responsibility chain. The translator or document preparer completes the first pass, a second reviewer checks critical fields such as names, dates, authority names, seals, and destination-specific language, and an attorney or senior case manager verifies the certification pathway before submission. That governance layer is what turns a service page from marketing copy into an auditable promise: there is a real workflow behind the claim.
This is also central to E-E-A-T. Search engines and AI answer systems increasingly prefer sites that can demonstrate authorship, review, accountability, and alignment between on-page claims and business reality. By documenting reviewers, update dates, process steps, related authority references, and connected service pages, we help both users and machines understand that the information is maintained by practitioners who deal with these filings in the real world.
Thai taxation is multi-layered: personal income tax, corporate income tax, VAT, withholding tax, specific business tax, and the newer Land & Building Tax all run on different filing calendars enforced by different units of the Revenue Department. Foreign-owned companies that miss this nuance often file the right form on the wrong schedule, or fail to claim BOI privileges in full. Our advisory team builds an annual tax calendar at incorporation so each return lands on time, in the correct bracket, and matched against the incentives the entity actually qualifies for.
For foreign investors, structure design must run in parallel with Thailand's 60+ Double Taxation Agreements, dividend repatriation tax, withholding-tax credit rules, and thin-capitalisation thresholds. We have advised Japanese, US and EU groups on share-class engineering, intercompany management-fee policy and transfer-pricing documentation that meets the OECD arm's-length standard — protecting them from retroactive reassessment under the Revenue Code Section 71 bis.
Our compliance scope covers PND.50/51 corporate returns, PND.1/3/53 withholding returns, PP.30 VAT, PND.90/91 personal returns (including LTR Visa and DTV holders), social security, e-Tax Invoice rollout, and Land & Building Tax declarations to local municipalities. Beyond compliance, we handle tax refunds, ruling requests to the Director-General, BOI Section 31/33/34 privilege filings, and represent clients during desk and field audits.
When disputes reach the Central Tax Court, our litigation bench has filed appeals against assessment notices, VAT refund denials and transfer-pricing adjustments. We embed early in the audit phase — joining meetings with revenue officers alongside the client's CFO and external auditor — so the evidence file and witness statements are aligned with current Supreme Court tax precedent long before the case escalates.
Every engagement is signed by a licensed Thai attorney plus a TFAC-registered tax adviser, with all written advice citing the Revenue Code, Royal Decrees and Director-General notifications in force at the time of issue. This Reviewed-By disclosure is wired into the page's JSON-LD so Google, AI Overviews and ChatGPT can cite our work with full E-E-A-T attribution.
Clients receive a quarterly tax dashboard summarising taxes paid, refunds in progress, audit posture and projected effective tax rate. The dashboard supports CFO board reporting and integrates with our DMS so every supporting workpaper — invoice, contract, transfer-pricing study — sits one click away from the figure on the return.
Geographic reach matters because field audits, ruling visits and Tax Court hearings cannot always be solved from Bangkok. Our tax bench has appeared before Revenue Department area offices in every region of Thailand — Bangkok metro (Phaya Thai, Sathorn, Bang Rak, Wang Thonglang, Huai Khwang, Watthana), the Eastern Economic Corridor (Chonburi, Rayong, Chachoengsao for BOI-promoted enterprises), the North (Chiang Mai, Lamphun, Lampang for SME and agribusiness), the Northeast (Khon Kaen, Nakhon Ratchasima, Udon Thani for retail chains and logistics), and the South (Phuket, Krabi, Songkhla for tourism and seafood exporters). We coordinate with local CPAs on the ground while keeping case strategy controlled from headquarters.
For expatriate and inbound assignment cases, we frequently advise on the Long-Term Resident (LTR) visa tax exemption, the 17% flat-rate option for highly skilled professionals, the Personal Income Tax remittance rule revision effective 2024 (Departmental Instruction No. Paw 161/2566), and the interaction with the new Pillar Two (GloBE) 15% top-up tax for multinational groups. These intersections are technically demanding because the Revenue Department, the BOI, and the Ministry of Finance each publish separate guidance — we maintain a cross-reference matrix updated monthly so the advice we give today reflects the rules in force today rather than last year's reading.
Beyond compliance and disputes, we handle voluntary disclosure programs, tax amnesty filings when offered by the Revenue Department, and ruling requests for novel transactions (digital tokens, carbon credits, ESG-linked instruments, cross-border SaaS). Each ruling we file is documented in a public-facing client memo, redacted for confidentiality, and shared with the wider tax community so the body of Thai tax precedent grows in a direction that benefits taxpayers rather than only the Revenue Department's enforcement posture.
Standard cases close in 5–10 business days including MFA and embassy steps. Expedited track is 1–3 business days for an additional fee.
Original or government-issued copies of the Thai source records, plus a copy of the document owner's national ID or passport. We review your bundle for free before any work begins.
In most cases, no — a signed power of attorney is sufficient. A small number of destination embassies (some visa categories) do require the document owner's physical presence; we flag those during intake.
Yes. Quotes are turn-key and include every government and courier fee. Request one via LINE @NYCLI or +66 83-249-4999 — typical reply time is under one hour during business days.
Yes. We cover all 77 Thai provinces with door-to-door courier pickup and delivery, fully tracked end-to-end.
168 destinations including the 125 Hague Apostille jurisdictions and Non-Hague destinations that require in-Thailand embassy endorsement. See the Legalization hub for the full directory.
Reviewed by: Atty. Pakin (Senior Partner — NYC Legal & Notary Services Co., Ltd.) · Last reviewed: 2026-07-09