Accounting
Accounting Services in Thailand: The Complete Guide for SMEs (2026)
A complete 2026 guide to accounting services in Thailand for SMEs: monthly and annual filings, deadlines, penalties, typical costs and how to choose a firm.
11 min read
Accounting & Tax
Accounting services in Thailand
Accounting services in Thailand for SMEs and foreign-owned companies, from monthly bookkeeping and tax returns to the annual audit. One team, fixed monthly fees, and answers in plain English.
No commitment · Written reply within 1 business day · Published prices
FAP
Accounting federation member
DFK
International member firm
200+
Active SME clients
1 day
Reply time
Accounting Services
End-to-end accounting and tax support
Seven services covering monthly bookkeeping, tax filings, personal income tax for foreigners, financial reporting, accounts payable and receivable (AP and AR), treasury, and the annual audit. Plizz is a member of the Federation of Accounting Professions (FAP), a Xero certified advisor, and the Thai member firm of DFK International.
Bookkeeping Services
Monthly double-entry bookkeeping: bank reconciliations, expense classification, and a monthly report you can act on.
- Double-entry bookkeeping
- Bank reconciliation
- Monthly reports
Financial Reporting
Full financial statements under Thai Financial Reporting Standards (TFRS), with management reports, KPI dashboards, and filing with the Department of Business Development (DBD).
- TFRS financial statements
- KPI dashboards
- DBD filing
Tax Filing & Compliance
Every tax return, handled: corporate income tax (CIT), VAT, withholding tax (WHT), specific business tax (SBT), transfer pricing, and support in Revenue Department audits.
- CIT and VAT returns
- WHT filings
- Tax audit support
Personal Income Tax for Foreigners
Annual PND.90 or PND.91 returns for foreigners living in Thailand, foreign income remitted since 2024, double tax relief with the RO.22 certificate, and personal Tax ID (TIN) registration.
- PND.90 and PND.91 returns
- Foreign income review
- TIN registration
AP & AR Management
Supplier invoices and customer collections managed for you, with correct WHT on every payment and a rolling cash flow forecast.
- Cash flow forecasting
- Collections
- WHT on every payment
Treasury Management
Outsourced payment runs, supplier follow-up, and cash reporting: the step between bookkeeping and hiring your own treasurer.
- Payment runs
- Cash position reporting
- Supplier follow-up
Annual Audit & Compliance
The full year-end cycle: closing, coordination with the auditor, AGM preparation, DBD filing, and the PND 50 annual tax return.
- Auditor coordination
- AGM preparation
- DBD and tax filings
Insights
Guides on this topic
Company Setup
BOI Application in Thailand: The 2026 Step-by-Step Guide
A step-by-step 2026 guide to the BOI application in Thailand: who qualifies, documents, e-filing, decision timelines, costs and duties after approval.
9 min read
Accounting
Benefits of Cloud-Based Accounting for Thai Businesses
The benefits of cloud-based accounting for Thai businesses: real-time access, flexibility, automation and strong data security for growing companies.
5 min read
Get Started
Not sure which service you need?
Send us your question. We look at your situation and tell you in writing what you need, and what you do not, within 1 business day.
No commitment · Reply within 1 business day