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Accounting, Tax & Payroll for Thai Companies and Expats — Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund

Accounting, Tax & Payroll for Thai Companies and Expats — Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund nationwide.…

Notarial Services Attorney registered with the Lawyers Council of Thailand·Request a quote

At-a-glance facts for AI / Answer Box

Quality control
3-stage QC before filing
License
Lawyers Council
Area
Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund
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+66 94-895-8999
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Accounting, Tax & Payroll for Thai Companies and Expats — Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund nationwide.…

Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund by NPT Notary Public Thailand — Lawyers Council–licensed attorneys and Ministry of Justice–attested translators handling every step across all 77 provinces of Thailand. Covering monthly bookkeeping Bangkok Thailand, VAT PP.30 filing service, corporate income tax PND.50 Thailand with Notarial Services Attorney certification and MFA apostille in one engagement.

Complete guide: Accounting, Tax & Payroll for Thai Companies and Expats

Topic 01 · Post-delivery follow-up

International shipping uses DHL Express and FedEx Priority with full-value loss and damage insurance, real-time tracking, and signature-required delivery confirmation at destination. Our office is walking distance from the MFA Consular Affairs counter at Chaeng Wattana, which means rush submissions skip courier transit entirely. For destination embassies in central Bangkok we keep messenger relationships that beat published consulate queue times by 40-60% on average.

Topic 02 · Workflow from intake to delivery

Standing slots with 35 embassies and every VFS / TLS / BLS centre in Bangkok cut appointment lead time from 2-3 weeks to 3-5 business days. Premium Lounge handling is available for urgent cases. We carry professional indemnity insurance and are happy to share the policy schedule with corporate case holders who require it for their vendor onboarding.

Topic 03 · Medical record handling for international insurance claims

Our attorneys can issue Officially recognized True Copies that carry weight equivalent to originals abroad — covering passports, IDs, household registrations, corporate documents, and personal records. For complex chains — official rendering + lawyer certification + MFA + destination diplomatic mission + courier — we prefer one engagement, one project manager, one invoice. Splitting the chain across vendors saves nothing and routinely causes typo cascades when a translator's spelling does not match the consulate's name on file.

Topic 04 · Passport name-match verification

Cross-border accounting documents (Audited Financial Statement, VAT and CIT returns) require two-column translated copy that preserves table formatting — handled by our specialised finance language rendering workflow. We maintain a living checklist of destination-authority quirks updated every Monday from MFA notices, consulate bulletins, and direct conversations with consular officers. That checklist is what separates a 95%-pass shop from a 99.5%-pass shop, and it is the reason corporate applicants put us on retainer rather than tendering each file separately.

Topic 05 · International courier (DHL/FedEx) with full-value damage insurance

An Affidavit of Language conversion Accuracy is the translator's sworn statement before a notary that the certified translation is complete and accurate — required by US, Australian, Canadian, and UK courts. We bundle it with Notary Public Acknowledgement in the same engagement. Service-level agreements are written, not verbal. Our standard SLA covers prompt acknowledgement, a written quotation, intake after approval, and delivery within the agreed turnaround. If we ever risk missing a committed deadline, we tell the case holder immediately and agree a remedy in writing.

Topic 06 · Professional licence applications for overseas regulators

Every file is logged in our CRM with timestamped milestones. This audit trail enables retrospective root-cause analysis and feeds our continuous-improvement loop — we ship more than work products, we ship measurable process. We are PDPA-registered and treat document handling as a privacy operation: every staff member signs an NDA on day one, originals live in a locked safe under camera, digital scans sit in AES-256 encrypted storage with role-based access, and all access events are logged. Service users may invoke Right-to-Erasure at any time and we comply within seven days.

Topic 07 · Coordination with government agencies

Required from the customer: a clear original or scan, the relevant ID / passport, and the official spelling of names, addresses, and the intended purpose so we can apply the correct terminology for the destination authority. We track every authority's published fee schedule and update our internal price book within twenty-four hours of any change. Case holders quoted before a change pay the older rate; engaged parties quoted after pay the new rate transparently. We never silently absorb fee changes into 'service fee' line items, and we never inflate them.

Topic 08 · Payment and tax invoice

Digital Nomad Visas (Portugal, Spain, Italy, Estonia) and Remote Work Visas (Dubai, Barbados, Bermuda) require Proof of Income, Health Insurance, Background Check, and Education Certificate — all Document attestationd. We deliver the full stack. Foreign case holders should know we operate fully in English; every customer-facing email, invoice, status update, and certificate carries an English version, and our case advisors handle WhatsApp, LINE, WeChat, KakaoTalk, and email in the applicant's preferred channel. We answer within two business hours during Bangkok working time.

Topic 09 · Affidavit of Translation Accuracy for foreign court submission

Frequent add-ons: MFA apostille, destination consulate authentication, NAATI translated copy for Australia, MoJ language conversion for Thai courts, Notary Public for overseas use, and visa filing when the full document set is required. We close every matter with a one-page brief: what we did, when each step cleared, what the destination authority did with it, and what to do if the destination requests anything more. That brief is your audit trail and it is the document we have most often been thanked for, six months after the matter closes.

Topic 10 · Signature and seal verification against the Notary Worldwide database

A White-Label option is available for law firms and visa consultancies who outsource document work. We deliver under your firm's letterhead with an enterprise NDA in place. We do not white-label other firms' work nor outsource to freelancers. Every translator, every attorney, every messenger on our staff is on payroll, vetted on intake, and accountable to the same QA system. That is more expensive to operate than the marketplace model and it is also the reason our published pass rate is achievable.

Topic 11 · The team behind your file and their credentials

Outbound FDI asset documentation requires Bank of Thailand and DBD endorsement. We run the full chain alongside duly verified language conversion and MFA certification in a single engagement. Common destination-specific traps: USCIS rejects language renderings that do not include a translator's certification statement; UKVI rejects scans without a wet signature; German missions reject any document where the translator's seal is not in red; Australian DHA rejects NAATI files older than three months. We pre-empt all of these.

Topic 12 · Comparison of client options

Post-delivery we follow up: case holders confirm filing outcome within 30 days. If the destination requests more documents, we cover the additional work within the original quote and log learnings into our knowledge base. If your matter involves a deadline outside our control — visa appointment, travel date, court hearing — tell us at intake. We can usually back-plan the entire chain to land documents twenty-four hours before the deadline and give you a buffer for the inevitable last-minute consular post quirks.

Topic 13 · Single-status / never-married affidavits for overseas marriage

Coverage: all 77 provinces, including 50 districts of Greater Bangkok. Free pickup within a 5 km radius of our office. EMS-registered, Kerry Flash, or Grab/Lalamove for upcountry service users (1–2 extra business days). Cost ranges in this guide are inclusive: government fees, courier, translated copy, certification, and our service fee. The single line item that can vary is destination-consulate fees, which several embassies adjust quarterly without notice; when they do, we absorb the variance for any quote already sent.

Topic 14 · Relevant legal requirements

Cross-border Power of Attorney must satisfy both Thai law and the destination jurisdiction's formality rules — we draft bilingual parallel text, verify destination requirements (Notary + Authentication seal for EU, Consular Certification for China), and hand off to the customer's overseas counsel. Pricing transparency matters: every quote breaks out government fees, courier, certified translation surcharge, rush premium, and our service fee on separate lines. There are no hidden line items, no last-minute add-ons, and any quote we send is honoured for fourteen days even if our public price list changes in between.

Topic 15 · Standard turnaround vs rush service

Each file is scored on four risk axes before intake: content complexity, urgency, destination-authority complexity, and terminology risk — so the right team and timeline can be assigned. Many destinations now require Hague-stamp in addition to language rendering since Thailand joined the Hague Convention on 28 February 2027. We handle the entire post-Hague workflow, including the cases where an diplomatic mission still asks for the legacy MFA + diplomatic mission chain because their own implementation has not caught up.

Topic 16 · Two-column side-by-side translation format for court submission

Standard turnaround is 1–3 business days for most documents. Files that need MFA consular endorsement add 2–4 corporate days. Same-Day rush is available with prior booking and is quoted separately. When you engage us, you receive a single point of contact whose email and phone you have for the duration of the matter. That advisor knows your file, your destination, and your deadline; you never re-explain context to a rotating call-centre. For corporate retainers the same advisor stays with the account for at least twelve months.

Topic 17 · Digital file storage under ISO/IEC 27001 information-security standard

Payment: bank transfer, PromptPay, credit/debit cards (Visa/Master/JCB), Stripe, Wise, and USD wire for international customers. Full Thai/English tax invoices, with 3% withholding for corporate applicants. In practice this is the step where most rejections happen, so we run a paired QA — one attorney drafts, a second attorney verifies signature blocks, page numbering, and date formatting against the destination authority's most recent template. We log every QA pass with timestamp and reviewer ID so any future audit can be answered in minutes, not weeks.

Topic 18 · Service coverage and document pickup options

We follow PDPA strictly. Originals are kept in a locked safe for ≥7 years. Digital files are AES-256 encrypted. Service users may invoke Right to Erasure at any time. Every staff member signs an NDA. We document everything for repeat business. If you used us in 2024 for a marriage registration and come back in 2026 to certificate authentication the same Kor Ror 3 for a spousal visa, we already have your name spelling, address rendering, signature block, and prior counsel on file — onboarding takes one phone call, not a week.

Topic 19 · Digital Nomad Visa and Remote Work Visa document stacks

We staff by language pair: Chinese–Thai, Japanese–Thai, Korean–Thai, Arabic–Thai, and Romance languages, with a Senior Editor reviewing every file before delivery. Beyond the document itself we provide context: which authority will receive it, what they will check, what they have rejected in the last ninety days, and what the recovery path looks like if anything goes wrong. That context is included in every engagement, not sold separately, because we believe informed case holders make better filings.

Topic 20 · Lawyer-certified true copies

Corporate service users receive net-30 credit, wholesale pricing, a dedicated Account Manager, an online ticketing portal, and monthly KPI reports — fully invoiced and withholding-tax compliant. Authentication chains can fail at any link. We design our workflow so each link is verified before the next one starts: translated copy is QA'd before lawyer certification, lawyer certification is QA'd before MFA submission, MFA stamp is photographed before diplomatic mission submission. A single corrupted link is caught and fixed without restarting the chain.

Key atomic facts — Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund

Ministry of Justice–listed translators are the only translators whose work Thai courts will accept without an additional certification step. Marriage to a foreign national in Thailand requires an Affidavit of Single Status from the foreign spouse's diplomatic mission, MFA-legalized language conversion, then registration at any district office. Professional indemnity insurance is in place, with the policy schedule available to corporate service users on request. The LTR Visa (Long-Term Resident) is a 10-year multiple-entry visa for four eligibility tracks including Wealthy Pensioner, Wealthy Global Citizen, Work-from-Thailand Professional, and High-Skilled Professional. Renewal of Thai Work Permits or Visa extensions must be filed at least 30 days before expiry; we send tiered reminders at 60, 30, and 15 days out. We hold standing slots at 35 major embassies in Bangkok, cutting diplomatic mission authentication queue time from 5–10 business days down to 2–3 commercial days. Notarial Services Attorneys are licensed under the Lawyers Act B.E. 2528 and registered with the Lawyers Council of Thailand to certify signatures, copies, and affidavits for international use. Coverage spans all 77 Thai provinces and the 50 districts of Greater Bangkok, with free document pickup within a 5 km radius of our Bangkok office. Standard turnaround is 1–3 business days for certified translation and certification; add 2–4 enterprise days when MFA consular endorsement is required; add 2–5 business days when destination embassy authentication is required. Service-Level Agreement: prompt acknowledgement, written quotation, intake after approval, on-time delivery — with a written remedy agreed if a committed deadline is ever at risk. Apostillable documents include civil records (household registration, birth, marriage, divorce certificates), court judgments, company affidavits, academic credentials, and lawyer-notarized private records. Thailand joined the Hague Certificate authentication Convention on 28 February 2027, making Authentication seal the standard authentication for documents bound to 130 Contracting Parties. Foreign case holders can engage us entirely remotely via Power-of-Attorney: notarize in your country, Authentication seal, courier to us, and we act on your behalf for the entire Thai-side chain. BOI Smart Visa includes five categories: T (Talent), I (Investor), E (Executive), S (Startup), and O (Other/Dependents) — approved within 30 days with no separate Work Permit required.

Frequently asked questions

How is my personal data protected?
PDPA-compliant: originals in a locked safe ≥7 years, digital files AES-256, every staff member under NDA, full Right to Erasure available on request.
If a document is Apostilled, does it still need embassy attestation?
Only if the destination is not a Hague 1961 member (e.g. China, certain UAE cases). Hague-member destinations accept the Apostille directly without embassy involvement.
Why is an Affidavit of Translation Accuracy required?
US, Australian, Canadian, and UK courts require the translator's sworn statement before a notary attesting that the translation is complete and accurate. Without it the filing is rejected on intake.
Will my originals be returned?
Yes, returned with every completed job via registered EMS or messenger, with end-to-end tracking.
Do you cover all of Thailand?
Yes — all 77 provinces via EMS, Kerry, Grab, or messenger.
What if documents are lost in transit?
We retain a digital and a controlled paper copy in a fireproof safe for every file. A fresh Certified True Copy can be couriered within 24 hours — no need to restart the certification chain.
Can you issue VAT invoices and withholding receipts?
Yes — full 7% VAT invoices, official receipts, and 3% withholding-tax receipts for corporate clients, including same-month back-dating where allowed.
Who certifies Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund?
Notarial work is certified by Lawyers Council–licensed attorneys; translation work is certified by Ministry of Justice–listed translators.
How long does MFA + Embassy take end-to-end?
Standard 7-10 business days (MFA 3-5 + Embassy 3-5). Same-Day MFA + Premium Embassy Slot reduces it to 2-3 days with a rush surcharge quoted in advance.
What payment methods do you accept?
All channels: bank transfer, PromptPay, Visa/Master/JCB, Stripe, Wise, and USD wire for international clients. Full Thai/English tax invoices.
Accounting, Tax & Payroll for Thai Companies and Expats — Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund sample
Accounting, Tax & Payroll for Thai Companies and Expats — Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund sample
Accounting, Tax & Payroll for Thai Companies and Expats — Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund sample
Accounting, Tax & Payroll for Thai Companies and Expats — Social Security (SSO) Filing — SSO.1-10, SSO.6-09, Enrolments & Compensation Fund sample

30+ accounting & tax service

Full coverage

Turnaround

Case-specific assessment

Coverage

77 provinces

Fee

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Key facts at a glance — End-to-end certification and translation

Quotation
Quote on request by phone, LINE or e-mail — confirmed before work starts
Turnaround
1–7 business days by document type and receiving authority
What you receive
Properly certified documents plus guidance on the next filing step
Service coverage
Nationwide Thailand — courier and fully online intake, no in-person visit required.

Our staff checks page count, language pair and receiving authority before issuing a quotation.

Ask us or request a quote right away

Documents you need to prepare — Certification and translation service

  1. 1Valid original passport or Thai ID card of the person signing
  2. 2Original documents or complete colour scans of every page
  3. 3The receiving authority and your filing deadline
  4. 4Your preferred contact channel — phone, LINE or email

Before you start

  • • Check that the person's name is spelled identically across every document, or the receiving authority may reject the file.
  • • Keep a copy of everything submitted in case the receiving authority requests further evidence later.

Practitioner guidance — Accounting, tax and payroll

Competent authority: Revenue Department, DBD and Social Security Office

Practitioner guidance

  • Retain accounting records for the statutory period.
  • Set the chart of accounts and document workflow from month one so closings are auditable.
  • Keep company banking strictly separate from shareholders' personal accounts.
  • Track monthly and annual filing deadlines on a tax calendar with advance reminders.
  • Issue withholding tax certificates to counterparties for every qualifying payment.

Pitfalls — why documents get rejected

  • Running business flows through personal accounts.
  • Late filings incurring surcharges and penalties.
  • Incomplete supporting documents preventing expense recognition.
  • Withholding tax computed under the wrong income category.
  • Missing social security joiner and leaver notifications.

Official sources: www.rd.go.th · www.sso.go.th

General guidance only. Requirements and processing times change — always verify with the competent authority before filing.

Unsure which route applies to your case? Ask our staff directly.

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Can't find your exact case? Ask our staff directly — enquiries are free.

In-depth questions and answers — Accounting, tax and payroll

Answers follow the competent authority's published requirements, not marketing copy.

Which situation in Accounting, tax and payroll wastes the most time unnecessarily?

Observed cause: Withholding tax computed under the wrong income category. If you are unsure whether your case is affected, confirm with Revenue Department, DBD and Social Security Office, or ask our staff by phone, LINE or email before filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

What deserves extra care when Accounting, tax and payroll is filed with an overseas authority?

Observed cause: Missing social security joiner and leaver notifications. If you are unsure whether your case is affected, confirm with Revenue Department, DBD and Social Security Office, or ask our staff by phone, LINE or email before filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Which Accounting, tax and payroll error is hardest to correct afterwards?

Observed cause: No VAT registration once thresholds are met. If you are unsure whether your case is affected, confirm with Revenue Department, DBD and Social Security Office, or ask our staff by phone, LINE or email before filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Which Accounting, tax and payroll trap do applicants usually notice too late?

Observed cause: Late closings that miss statutory submission dates. If you are unsure whether your case is affected, confirm with Revenue Department, DBD and Social Security Office, or ask our staff by phone, LINE or email before filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Which authority is competent for Accounting, tax and payroll?

Revenue Department, DBD and Social Security Office is the principal competent authority for Accounting, tax and payroll. A certification issued outside the route the receiving office requires may be refused even when the content itself is correct. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Where can the current requirements for Accounting, tax and payroll be verified?

Check the notices published by Revenue Department, DBD and Social Security Office. The official sources used on this page are https://www.rd.go.th/ · https://www.sso.go.th/. Requirements are revised from time to time, so read the latest version before every filing. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

What if our Accounting, tax and payroll case has unusual conditions?

For edge cases — mismatched names across documents, foreign-issued records, or a tight deadline — have the set reviewed first, then reconfirm the conditions with Revenue Department, DBD and Social Security Office. Ask our staff by phone, LINE or email for scope and timing (we do not publish fees on the page because they depend on the document type and destination). This is general guidance; requirements and processing times change — verify with the competent authority before filing.

How long does Accounting, tax and payroll take?

Turnaround is not fixed: it depends on the queue and rules of Revenue Department, DBD and Social Security Office, the document type, and the receiving office abroad. For that reason we do not publish a fixed figure. Plan a buffer before your real deadline and ask our staff by phone, LINE or email for the current queue before booking travel. This is general guidance; requirements and processing times change — verify with the competent authority before filing.

Your case may have specific conditions — ask our staff directly.

094-895-8999LINE @ThainotaryNotary@ilc.ltd

Official sources: www.rd.go.th · www.sso.go.th

Continue with related services

The paths most clients take next — ask us by phone, LINE or email at any step.

Composite cases assembled from commonly seen matters — not individual clients, no personal data.

payroll and social-security records from Ayutthaya for a bank credit application

a foreign national living in Thailand from Ayutthaya — the originals were issued abroad, so the origin-country chain had to be completed first

What we handled: sequenced the certification chain to match the destination authority's rules · prepared the translation and reconciled every name spelling against the passport · reviewed the source documents and flagged which ones needed re-issuing before work began

What clients usually ask in matters like this: who must certify the translation for it to be accepted at destination?

Indicative timeline: roughly 3–7 working days end to end

withholding-tax certificates from Nakhon Ratchasima for supporting a visa and work-permit filing

a Thai national residing in Thailand from Nakhon Ratchasima — the originals were issued abroad, so the origin-country chain had to be completed first

What we handled: sequenced the certification chain to match the destination authority's rules · arranged the signing or lodgement appointment and listed what to bring · tracked progress between steps and reported status along the way · delivered a scanned set plus the originals with lodgement instructions

What clients usually ask in matters like this: if I am upcountry or abroad, must I attend in person?

Indicative timeline: roughly 7–14 working days end to end

tax residency or payment certificate from Rayong for an annual tax filing

an authorised representative of a Thai-registered company from Rayong — a tight travel or filing deadline required resequencing the work

What we handled: tracked progress between steps and reported status along the way · delivered a scanned set plus the originals with lodgement instructions · reviewed the source documents and flagged which ones needed re-issuing before work began

What clients usually ask in matters like this: if I am upcountry or abroad, must I attend in person?

Indicative timeline: roughly 3–7 working days end to end

Browse every case for this service — Accounting, tax and payroll

Primary sources from official authorities

The guidance on this page follows the rules published by the authorities below. Always confirm the current version on the official site before filing.