Keep the books in order
Record sales, expenses, receipts and payments. Match source documents and reconcile bank balances so your accounts reflect the underlying transactions.
Outputs: general ledger, trial balance and supporting schedules.
For Thai & foreign-owned businesses
Accounting & tax services in Thailand. Clear books. Better decisions.
Stay on top of your bookkeeping, monthly tax filings and financial reporting with UnionSPACE. Get cloud accounting software and English-speaking coordination, with a scope matched to your business.
Based in Bangkok. Supporting businesses operating in Thailand.
What does an accounting service in Thailand cover?
It records and reconciles business transactions, prepares financial reports, and handles the tax returns included in the engagement. VAT, withholding tax, payroll and annual work depend on your company’s activities and agreed service scope.
One clear accounting scope
Know what is handled each month
Start with your transaction volume, tax registrations and reporting needs. We distinguish routine bookkeeping from payroll, year-end work and specialist support before you engage us.
File the returns that apply
Bookkeeping Essential covers P.N.D.53 and P.P.30 where applicable. Ask us to scope P.N.D.1, P.N.D.3, P.N.D.54 or P.P.36 if your business needs them.
Tax payable is separate from professional service fees.
Understand your numbers
Review monthly financial reports, receivables and payables. Discuss additional reporting if you need visibility by division, product line or sales channel.
Closing dates and custom reports are agreed in the engagement.
Coordinate salaries & SSO
Add payroll processing and Social Security support where needed. Confirm employee numbers, payroll tax returns, enrolment and annual work separately.
Explore payroll services →Prepare for annual obligations
Plan financial statements, corporate income tax returns and audit coordination. The quotation should distinguish accounting preparation, the independent audit and DBD submission.
Annual work is not automatically included in monthly bookkeeping.
Scope BOI & cross-border work
Discuss BOI and non-BOI account segregation, overseas transactions, cost allocation and additional reporting before choosing a package.
BOI & export company accounting →Transparent starting fees
Accounting fees that follow your workload
Bookkeeping Essential is billed monthly. The published tiers below are subject to 7% VAT. Your quotation confirms how transactions are counted and how additional work is charged.
Bookkeeping Essential
| Monthly transactions | Fee before VAT |
|---|---|
| Fewer than 5 | THB3,500 |
| 5–14 | THB5,500 |
| 15–49 | THB8,500 |
| 50–119 | THB16,500 |
| 120–249 | THB29,500 |
| 250 or more | Request a quotation |
Each range applies the corresponding published “less than” tier. For transaction counting, volume changes or high-volume daily sales, request a written assessment.
Confirm my monthly feeIncluded in Bookkeeping Essential
- Document collection, verification, matching and data entry
- Bank reconciliation and monthly financial reports
- General ledger, trial balance and debtor / creditor ageing
- P.N.D.53 withholding tax and P.P.30 VAT filing, where applicable
- Up to 5 withholding tax certificates per month
- Supported cloud accounting subscription, onboarding and cloud document storage
- Dedicated account coordination
Published adjustments: non-VAT-registered companies receive a 12% reduction from the published fee. More than 5 foreign transactions per month attracts a 15% surcharge. Confirm the final calculation in your quotation.
Quote separately: dormant companies, BOI accounting, high-volume F&B or retail, payroll, additional return types, historical corrections and year-end work.
BOI accounting requires a tailored scope
Promoted and non-promoted activity, project conditions and reporting complexity affect the work. Request a written BOI quotation covering the monthly fees and any annual or specialist filings.
Discuss BOI accountingSelected one-off & annual service fees
These are separate service items. Check whether your engagement already includes a particular task. Confirm VAT treatment and any third-party charges in the quotation.
| Service | Published fee |
|---|---|
| Half-year corporate income tax submission — P.N.D.51 | THB7,000 per submission |
| Annual corporate income tax return — P.N.D.50 preparation, review & filing | From THB39,500 |
| Additional withholding tax certificate | THB300 each |
| Company Social Security registration | THB8,000 |
| Employee Social Security enrolment | THB2,500 per person |
| Employee Social Security unenrolment | THB2,000 per employee |
| Annual Workmen’s Compensation filing — K.T.20 | THB3,000 |
| Personal income tax calculation & filing support | THB7,500 per person; confirm applicable returns |
| Tax residence certificate support for a foreign individual | THB6,500 per issuance |
| Corporate tax certificate support — R.O.21 tax payment / R.O.22 residence | THB8,500 per issuance; confirm certificate required |
Government tax liabilities, penalties, historical corrections and specialist advice require separate assessment. Annual audit and DBD filing arrangements must be expressly confirmed. BOI services are quoted individually.
Practical support for business owners
Stay informed. Keep control. Build continuity.
Communication you understand
English-speaking coordination connects your business questions with local accounting work. Ask about Thai, Chinese, Burmese and Russian language support when arranging your consultation.
Access to your financial records
Cloud software lets authorised users review recorded data and documents. Your team retains control of business decisions, payments and approvals.
Support beyond the ledger
Coordinate accounting with payroll and corporate secretarial services when changes to staff, directors, shareholders or your company address affect the work.
Cloud software included. Setup matched to your business.
The existing offer includes a supported subscription and onboarding. Discuss PEAK, FlowAccount or SMEMove, or tell us about your current system. E-commerce, POS, bank and payment gateway integrations depend on compatibility, licence terms and agreed setup work.
Online access shows recorded information. Complete, reconciled reports follow the agreed document cut-off and closing timetable.
Thailand accounting & tax essentials
Which tax filings does your company need?
There is no single monthly checklist for every company. Your VAT status, payment types, employees and overseas transactions determine the obligations that apply.
| Return / obligation | What it relates to | When relevant |
|---|---|---|
| P.P.30 | Monthly VAT return | VAT-registered businesses, including months with no sales. |
| P.N.D.3 / P.N.D.53 | Withholding tax on relevant domestic payments | Review payee status and the type of payment; not every expense has the same treatment. |
| P.N.D.1 & SSO | Payroll withholding and Social Security obligations | Assess employee and employer obligations as part of payroll scope. |
| P.P.36 / P.N.D.54 | VAT remittance / withholding on relevant cross-border transactions | Review overseas suppliers, use of services and applicable treaty or statutory rules. |
| P.N.D.51 | Half-year corporate income tax | Generally within 2 months after the first 6 months of the accounting period; exceptions may apply. |
| P.N.D.50 | Annual corporate income tax | Generally within 150 days after the accounting period ends. |
| Annual financial statements & audit | Year-end reporting and DBD submission | Thai limited companies generally retain annual obligations even when inactive. |
Approaching THB1.8 million turnover?
For VAT-taxable activities, registration is generally required within 30 days after annual turnover exceeds THB1.8 million. This is a revenue threshold, not a profit threshold. Exempt activities need separate review.
Revenue Department: VAT guidance ↗Do not wait until year-end
Separate monthly bookkeeping and returns from half-year tax, annual corporate tax and the statutory audit. Keeping the records current helps identify missing invoices and unreconciled balances earlier.
Revenue Department: corporate income tax ↗General information, not a company-specific filing calendar. Electronic filing extensions, public holidays, special rules and your accounting period can affect due dates. Confirm current deadlines before filing.
Starting fresh or changing provider
A clear handover, from the first conversation
You can change accountants during the year. The key is knowing which work is complete, what is outstanding and who is responsible for the next filing.
Review your current position
Share your activity, VAT status, employees, transaction volume and outstanding deadlines. Flag any missing records or overdue returns.
Agree the scope & fees
Confirm monthly deliverables, additional returns, software, year-end responsibilities, handover work and the document timetable in writing.
Transfer & reconcile
Arrange access to your records, confirm opening balances and resolve handover questions before starting the agreed monthly workflow.
Accountant handover checklist
Prepare your latest trial balance and general ledger; bank statements and reconciliations; sales and purchase records; tax returns and filing receipts; prior audited financial statements; fixed-asset and other supporting schedules; and authorised access to accounting systems.
Ask about the existing switch-over offer. Its eligibility and any historical correction or migration work should be confirmed in your quotation.
Built around your business model
Different businesses need different accounting attention
Startups & small companies
Establish a workable document routine, understand the returns that apply and choose a fee tier that reflects actual activity.
Foreign-owned & service businesses
Coordinate Thai records with owner reporting needs and assess cross-border receipts, payments and expense documentation.
E-commerce, retail & F&B
Discuss sales channels, payment fees, refunds, inventory records and POS data before agreeing transaction volume and reconciliation scope.
Unsure what your company actually needs?
Tell us how your business operates. We will assess the accounting scope and explain the proposed services and fees.
Request a free 30-minute consultationDirect answers
Accounting in Thailand: frequently asked questions
How much do accounting services cost in Thailand?
UnionSPACE Bookkeeping Essential starts at THB3,500 per month for fewer than five transactions, subject to 7% VAT. Fees increase with transaction volume and complexity. Payroll, year-end work, audit and additional tax returns must be checked against your written quotation.
What is included in the monthly bookkeeping package?
Bookkeeping Essential includes document collection, verification and matching, transaction entry, bank reconciliation, monthly financial reports, general ledger, trial balance, debtor and creditor ageing, cloud accounting software and onboarding. It also includes P.N.D.53 and P.P.30 filing where applicable, and up to five withholding tax certificates per month. Other filings and services are scoped separately.
Can foreign-owned companies use UnionSPACE for Thai accounting?
Yes. UnionSPACE supports Thai and foreign-owned businesses operating in Thailand. English-speaking coordination helps owners understand the records, tax filings and documents required. Cross-border payments, reporting needs and transaction complexity are reviewed before quotation.
When must a business register for VAT in Thailand?
A business supplying VAT-taxable goods or services generally must register within 30 days after annual turnover exceeds THB1.8 million. The threshold concerns turnover, not profit. Exempt activities and other VAT rules need separate assessment.
Does a VAT-registered company need to file P.P.30 when it has no sales?
Yes. A VAT-registered business generally continues filing monthly P.P.30 returns even when there are no sales or no VAT payable. Having no activity does not automatically cancel VAT registration.
Does an inactive Thai limited company still need accounting and an audit?
An inactive Thai limited company generally still needs accounting records, annual financial statements, a statutory audit and annual corporate income tax filing. Monthly tax returns depend on registration status and transactions. Ask for a dormant-company quotation rather than assuming that all obligations stop.
Are annual audit fees included in monthly bookkeeping?
Do not assume they are included. Annual financial statements, P.N.D.50 preparation and filing, the independent statutory audit, and DBD submission are distinct tasks. Your quotation should identify which tasks are included, who performs them and any separate fees.
Can I switch accountants during the financial year?
Yes. First confirm the last completed accounting period and submitted returns. The handover should cover the trial balance, general ledger, tax filing receipts, bank reconciliations, supporting schedules, prior audited accounts and software access. Any missing records or historical corrections are assessed separately.
Which accounting software is included?
The existing UnionSPACE offer includes a supported cloud accounting subscription and onboarding. Options include PEAK, FlowAccount and SMEMove, subject to the agreed plan and suitability. Existing systems, migration, integrations and additional licences are reviewed before engagement.
Can you handle payroll, SSO and overseas payments?
Payroll and Social Security support can be added to the engagement. Overseas payments may require separate withholding tax and VAT analysis, including P.N.D.54 or P.P.36 where applicable. These services should be expressly included in your quotation.
What documents do you need to prepare an accounting quotation?
Share your company name, business activity, VAT status, approximate monthly transaction count, employee count, overseas transaction volume, current accounting system and any overdue filings. The team can then assess the monthly scope, handover work and year-end requirements.
Can I see my accounts online?
Yes. The agreed cloud accounting setup gives authorised users access to recorded financial information and documents. Online access does not mean every transaction is already reconciled; reporting accuracy depends on complete documents, processing and the agreed closing timetable.
Start with a conversation
Get an accounting quotation for your company
Book a free 30-minute consultation. Share your VAT status, approximate monthly transactions, employee count and any overdue filings so we can assess your requirements.
Monday–Friday, 9:00–18:00 · Bangkok time
Contact Our Multilingual Team in Thailand
Our team speaks English, Chinese (Mandarin), Russian, Kazakh, Burmese, Thai, and Indonesian — Monday to Friday, 9AM–6PM Bangkok time.
Get in Touch
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