Accounting, tax & payroll

Audit preparation: records, independence and DBD deadlines

Start by checking whether the books are closed and material balances have supporting evidence. We prepare records and coordinate questions; the independent auditor forms the opinion. A Thai limited company must present audited statements for approval within four months after year-end and file with DBD within one month after approval. Do not apply partnership audit exemptions to a small limited company.

Send the matter for accountant review All accounting services

Illustration of accounting evidence review before independent audit — AI-generated illustration, not our office, staff or actual client records.

What should be checked before your audit?

Situation	Starting records	Decision point
Small limited company	Entity type and independent audit report	Do not apply registered-partnership exemptions to a limited company
Unreconciled books	Trial balance, ledgers and reconciliations	Separate accounting corrections from audit; unsupported balances cannot be promised certification
Auditor findings received	Issue list, evidence and responsible persons	Management addresses or explains issues; the auditor independently evaluates the opinion impact
DBD filing approaching	Year-end, approval-meeting date and outstanding work	A limited company files within one month after approval; five months is not a universal deadline

Official sources and information limits

Reviewed 8 October 2026 · General information, not entity-specific advice. Confirm entity type, accounting period and announcements applicable when filing. Audit and tax outcomes cannot be guaranteed.

Work we accept

Index evidence, trial balances and material-balance schedules
Reconcile banks, receivables, payables, assets and related-party balances
Track auditor questions, supporting records, responsible persons and open issues
Coordinate evidence-backed corrections considered by management
Plan record delivery, approval meetings and filing dates for the entity type

What we do not do

Issuing or signing the independent audit opinion
Fabricating backdated evidence or unsupported balancing entries
Promising an unmodified opinion or pressuring the auditor to disregard material issues

Documents to prepare

Trial balance, ledgers and draft statements for the audit period
Bank statements and year-end reconciliations
Asset register, inventory, receivable and payable schedules
Contracts, tax invoices and evidence for material transactions
Meeting records, shareholder information and auditor-appointment evidence
Prior-year report, outstanding findings and responsible-person contacts

How the work proceeds

1.Agree the period and responsibilities
Confirm entity type, accounting period and actual deadlines; separate bookkeeping, coordination and audit scope.
2.Check balances and evidence
Reconcile and list missing evidence; possessing a statement file alone does not establish audit readiness.
3.Deliver records and track queries
Index submissions and record responses and delivery dates for the auditor’s independent assessment.
4.Address findings and prepare approval
Management owns statements and explanations; the auditor decides opinion effects. Arrange approval under the applicable procedure.
5.Deliver reports and check filing receipts
Separate audit report delivery, approval, DBD filing and tax filing; retain evidence of each step.

Statutory deadlines

Limited company: audited statements require approval within four months after year-end; file with DBD within one month after approval.
Registered partnerships, foreign entities and joint ventures covered by Section 11 generally file within five months; confirm entity-specific requirements.
Do not assume a universal one-month post-year-end deadline for auditor appointment or statement completion; verify appointment procedures and actual approval dates.

Before you decide

The independent auditor’s professional opinion cannot be promised by the office.
Missing evidence can affect the opinion in different ways depending on materiality and the extent of the issue.
Do not backdate meetings or records to suggest timely compliance.
Coordination fees and independent audit fees are separate scopes; agree them clearly.

Frequently asked questions

Does a small limited company need an audit?

Generally a limited company requires audited financial statements. Capital, revenue and asset exemptions for certain partnerships must not be applied to limited companies; check the legal entity type.

Does the bookkeeper sign the audit opinion?

This service prepares information and coordinates the work. A qualified independent auditor performs the audit and signs the opinion; the office does not sign in their place.

Is a trial balance sufficient for audit?

Opening balances, reconciliations and evidence for material balances also require review. The auditor may request further records or external confirmations based on risk assessment.

Can auditor findings be left unresolved?

Document the cause, evidence and responsible person. Management considers corrections or justified explanations. Unresolved material issues may affect the opinion; findings are not simply optional.

What opinion results from missing records?

It cannot be predetermined. The auditor considers materiality, pervasiveness and available alternative evidence. We help obtain records without promising an opinion type.

Is DBD filing always due in five months?

For a limited company, filing is due within one month of actual approval. Earlier approval brings filing forward; retain the meeting date evidence.

What is needed when changing the auditor?

Check appointment procedures and authority, explain the change and prepare prior reports, records and open issues. The new auditor independently assesses acceptance and evidence.

How are timing and fees agreed?

Assess business size, book quality, open issues and statutory dates. Agree coordination and audit fees separately in writing; urgency does not eliminate evidence checks.

Other accounting areas

Next step

Send the documents you hold and the work type. The accounting team will survey scope, document volume and statutory deadlines, then quote in writing before work begins. We do not guarantee the tax outcome — the Revenue Department decides.

Contact the office