Dormant Company in Thailand: Registration Does Not Remove Filing Duties

Key takeaways

• No sales and no tax payable are different findings; neither proves that every return can be omitted.
• The audit exemption available to qualifying registered partnerships does not extend to an ordinary company limited.
• Shareholder approval, DBD financial statements, the shareholder list and corporate income tax returns run on separate deadlines.
• A VAT registrant files monthly even without sales; a long temporary pause also has a notification requirement.
• Keeping the entity needs an accountable filing owner. Permanent closure requires a formal workstream.

What “dormant” means for an ordinary Thai company

“Dormant” is useful shorthand for a business decision: the owners are retaining the company while trading has stopped or has not begun. It should not be entered into the compliance plan as a blanket exemption. Establish whether the company is simply awaiting customers, has paused an existing business, or is actually being wound up. Those situations can have different transactions and tax registrations even when revenue is zero.

The legal starting point matters. For a Thai company limited, accounting begins on registration, rather than on the first customer invoice. The Accounting Act, sections 8–11 also requires accounts to be closed initially within twelve months and financial statements to be audited, with the specified audit exception directed at qualifying registered partnerships. Small size or inactivity alone does not remove a company limited’s audit requirement.

At company formation in Thailand , the incorporation record establishes the entity and its registration date. It does not establish that subsequent accounts, shareholder approvals or tax submissions have been completed. Retrieve the original incorporation documents and the last approved financial statements before deciding which period is currently open.

Keep the annual accounting and filing clocks separate

Build the calendar around the actual accounting period and the actual shareholder meeting. For a company limited, audited statements must go to a general meeting for approval within four months after the accounting close, followed by submission to DBD within one month after approval. The shareholder-list deadline is shorter: BoJ.5 is due within fourteen days after the ordinary general meeting. These are separate obligations under DBD’s company filing guidance , read with its 2025 filing rules and practice notice .

• Book the accountant and certified public accountant early enough for the audit to finish before the approval meeting. A no-sales year still needs financial statements reflecting its real balances.
• Record the meeting date and approval in the company records, then calculate the DBD and BoJ.5 dates separately. An earlier approval meeting brings the DBD deadline forward.
• Schedule P.N.D.50 independently: the statutory period is 150 days after the accounting year-end. Do not substitute “five months” for that day count.

The Revenue Department states the P.N.D.50 and P.N.D.51 statutory periods separately from company-law filings. For an ordinary twelve-month period, P.N.D.51 is due within two months after the end of its first six months. A newly incorporated company whose first accounting period is shorter than twelve months is exempt from P.N.D.51 for that first period, according to the department’s first-period FAQ . That exception does not cancel P.N.D.50.

Use these statutory periods as the planning baseline. Check the current agency calendar for the actual due date, holiday treatment and any applicable electronic-filing extension; an old year’s advertised date is not a standing extension. Keep DBD e-Filing and Revenue Department acknowledgments separately. A successful DBD submission does not itself prove that the tax return was filed.

The useful distinction is between activity, entity status and tax status. Each can change on a different date, so the compliance record needs more than a single “inactive” label.

Use a trigger ledger for tax returns

Use the ledger below to tell an unavoidable annual task from a registration-based or payment-based tax task. Add a responsible person and the company’s next due date to your working copy. “No revenue” cannot answer all four checks.

Sources for the ledger: corporate return deadlines , the Revenue Department’s no-income and half-year guidance , Revenue Code section 83 and the department’s withholding explanation . These distinguish filing from payment: a return can be required when the calculation produces no tax to pay.

For VAT, registration is the decisive starting check . Section 83 requires a VAT registrant’s monthly return even when no goods or services were sold. Use actual purchases, input tax and adjustments rather than assuming every figure is zero. Conversely, incorporation alone does not make every company a P.P.30 filer. Evaluate any VAT obligations arising from particular transactions separately.

A VAT registrant intending a temporary shutdown lasting more than thirty consecutive days must notify within fifteen days from the start of the shutdown under section 85/12 . The current P.P.09 registration-change form includes that situation. Temporary-stop notification is not VAT deregistration. Sections 85/18–85/19 also preserve registrant responsibility until the Revenue Department orders removal from the VAT register.

If the company has not started trading and is considering voluntary VAT registration before trading starts , include the ongoing return workload in that decision. If it is already registered, a quiet sales period is not permission to stop filing.

Payments can continue during a commercial pause: rent, accounting work, director-related charges or overseas services need their own tax classification. Review the payer, recipient, source and nature of each payment before deciding whether withholding or another remittance applies. Do not infer a universal monthly nil-return requirement for every tax from the VAT rule.

Assemble evidence of inactivity before signing returns

A useful inactive-company file demonstrates what happened during the period. Prepare it for the accountant and auditor before anyone signs the statements or returns. Zero customer invoices do not establish zero accounting entries. Capital, loans, deposits and costs can remain on the balance sheet or move during the year even when the business has no customers.

• Full-period bank statements for every company account, including accounts with only fees or interest; reconcile them to the ledger.
• Formation costs, paid-up capital records, shareholder advances and repayments, plus evidence for money paid on the company’s behalf.
• Supplier invoices, office arrangements, accruals and contracts still in force, including charges that were incurred but remain unpaid.
• An asset-and-liability list covering equipment, deposits, receivables, creditors and any tax credit carried forward.
• The last signed financial statements, audit report, approval minutes, shareholder list, filed returns and separate DBD and tax receipts.

Ask the preparer to explain unexplained balances rather than forcing a “blank” set of accounts. If a director funded a payment personally, record the substance and supporting documents; absence of a company-bank debit does not settle the accounting question. This evidence pack is a practical control, not a different statutory filing category.

Maintain access to the registered address, company records and filing accounts, and agree who supplies documents, who prepares the accounts, who audits, and who signs or authorizes submissions. Outsourcing preparation should produce a delivery list and receipts that the directors can inspect. Retain accounting books and supporting documents for at least five years after closing the accounts, subject to the further rules in Accounting Act section 14 .

Repair missed periods before choosing an exit

When a company has stopped filing, reconstruct the missing periods instead of treating the latest return as a cure for everything. Make one row per accounting year and, where VAT-registered, one row per tax month. Mark each required item as filed with proof, prepared but unfiled, or missing. Confirm the underlying transaction data before preparing arrears.

Prioritize imminent deadlines alongside the backlog. Obtain filing histories from both agencies and reconcile them with the company’s receipts; absence of a document in an accountant’s folder is not conclusive proof that nothing was submitted. Have the accountant identify late submissions, corrections and any payment consequences individually. Non-filing can attract penalties under the Accounting Act’s enforcement provisions ; inactivity is not a safe reason to ignore a notice.

For a permanent exit, dissolution and completed liquidation are distinct stages . A board decision to stop trading, an unused bank account or a VAT-change form does not complete corporate closure. The Revenue Department’s ruling on dissolution and liquidation explains that a dissolved company continues as necessary for liquidation and can retain corporate tax filing duties until liquidation is registered as completed. Formal closure can also create a special accounting close and asset-related tax questions.

Therefore, compare two concrete work plans: retaining the entity with continuing compliance, or completing dissolution, liquidation and the relevant tax-registration closure. Commission the closure-specific work if exit is chosen; do not stop the existing calendar while waiting for it. Keep official evidence of each completed stage and resolve residual tax matters separately.

Retain the company only with a funded filing plan

Retain an inactive company when there is a credible future use and the owners will fund its ongoing accounts, audit and applicable submissions. Before the next deadline, name a director responsible for the calendar, appoint the preparer and auditor, confirm access to records, and approve a budget based on the company’s actual scope. No fixed “dormancy cost” can be assumed from the absence of sales.

Choose a formal exit assessment when the entity has no realistic future role or its records cannot support another compliant year without substantial repair. Escalate promptly if VAT status is uncertain, earlier periods are missing or liquidation has already begun. The practical completion test for a retained company is a reconciled set of records, documented approvals and receipts for every required filing—not simply an internal note that trading is paused.