File value-added tax return quarterly
The quarterly VAT return must be filed no later than the last day of the first month of the following quarter; tax payment is due by the same deadline. Before filing: download invoices from the portal, reconcile output, review each input invoice, handle incorrect invoices, and obtain the correct carryforward amount.
TaxDatum helps you prepare and does not file on your behalf. TaxDatum is run by a private company, not the tax authority; filing is done on the official channel named under Where to file.
Machine-translated from the Vietnamese original; under editorial review.
Who needs to do this
- Enterprises filing VAT returns quarterly according to the criteria set out in the guidance document.
- Accountant or accounting service unit responsible for the enterprise's tax return.
When
- Each quarter, including quarters with no revenue.
- Filing deadline for the return and tax payment: the last day of the first month of the following quarter (according to the Law on Tax Administration).
Steps in order
What to prepare
Described by content; the exact form is taken from the system when filing. Tick what you already have.
Where to file
- Quarterly VAT tax return
- E-tax system, submit to managing tax office; sign with enterprise digital signature.
- Tax payment
- Pay tax electronically via e-tax account or through bank; select correct tax type and period.
- Business location or project in another province
- Follow separate filing or allocation principles in guidance documents — read separate article before filing.
Find the official channel by name (the e-tax system, the tax mobile app, the e-invoice portal, the National Business Registration Portal) and check that the domain belongs to a government body before signing in. Never give your password or digital signature to strangers.
Common mistakes
- Skipping a quarter with no transactions — must still file a tax return.
- Remaining tax available for credit carried forward differs from previous period's accepted return.
- Claiming input VAT credit on invoices of VND 5 million or more but paid in cash.
- Still applying tax reduction rate to invoices issued after policy expiry date.
- Rolling prior period errors into current period return.
- Paying tax to wrong sub-item or wrong period.
Explainer articles
6 explainer articles on this procedure on CongThue.com (in Vietnamese).
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Questions and answers
What is the deadline for filing a quarterly VAT return?
The last day of the first month of the following quarter, under the Law on Tax Administration; tax payment due on the same deadline. For example, quarter III deadline is the last day of October.
Must a return be filed for a quarter with no invoices?
Yes. A period with no transactions still requires filing a return, marked as no transactions. Failure to file is a missing return, and missing multiple periods creates difficult arrears to resolve later.
Can input invoices paid in cash be claimed as input VAT credit?
For invoices of VND 5 million or more, the condition for input VAT credit is having a non-cash payment document (Law on VAT 48/2024/QH15). Paying in cash for invoices at that threshold does not meet the credit condition.
Reference content, written from general rules and possibly not yet updated for new documents; it does not give form numbers, penalty amounts or processing times. TaxDatum.com is run by a private company and is not a government portal. Before applying it to a real case, ask the managing tax office or a qualified professional.