Accounting in Thailand: Bookkeeping and Year-End Preparation

Tell staff your legal structure, accounting year, VAT status, sales channels, transaction volume and employee count. Explain whether you need new books, a takeover or backlog work. Foreign ownership and cross-border activity may create additional questions; this page does not assume every business can use the same filing checklist.

Bookkeeping records business transactions and prepares accounting information. Audit work involves checking financial statements and expressing an opinion under the applicable requirements. Ask which tasks are included and who will be responsible before accepting the scope. A lawyer's Notary licence is not an accounting qualification. No accountant names or unverified professional credentials are published on this page.

- Latest financial statements and available audit report

- Trial balance, chart of accounts and support for opening balances

- Filed returns, submission receipts and payment evidence

- VAT, withholding tax and payroll records where applicable

- Asset, inventory, receivable and payable schedules

- Official letters, pending work and access permissions to change

Set the outgoing provider's cut-off and the new provider's starting period. Check who has already filed each return to avoid duplicate submissions. Do not share personal passwords as a substitute for properly assigning access.

Agree document cut-offs, review dates, company approval and payment responsibilities. Check the Revenue Department calendar for the actual form, filing channel, holidays and current extensions. Employer obligations require a separate Social Security Office check. Do not assume one online deadline applies to every tax return, or that sending documents means tax has already been filed and paid.

A Thai limited company that still exists should check accounting, annual statements, DBD submission and corporate income tax duties even without sales. A business still registered for VAT should check monthly PP.30 obligations even in a zero-transaction period. Withholding tax and employer filings depend on payments and employment. Partnerships and other entities can have different conditions or exemptions.

List missing records and affected periods, obtain copies from the relevant parties and compare them with returns already filed. Read any official letter and its response date. Corrections and late filings need a fact-specific sequence; there is no universal rule to fix the latest year first. Never invent receipts or change figures solely to force balances to match. Penalty relief and authority decisions are not guaranteed.

Ask which language, format and delivery period are available for the reports you need; English page content is not a promise that every report or filing can be supplied in English. Have staff check your existing software, licence rights and export capabilities. Request a scope separating bookkeeping, tax filings, payroll, year-end preparation and audit coordination, with charges explained by staff rather than a fixed price on this page.