Corporate tax finalization service in Vietnam
Full-year review, reconciliation and filing of corporate income tax and personal income tax finalization — built to survive a later tax inspection, not just to meet the deadline.
What tax finalization means in Vietnam
Tax finalization is the annual closing of a company’s tax position. The enterprise self-determines the tax payable for the financial year, reconciles it against amounts already provisionally paid, and files the finalization dossier with the tax authority. Two taxes are finalized: corporate income tax, and the personal income tax the company withholds on behalf of its employees.

Errors at this stage rarely come from arithmetic. They come from a year’s worth of input data — an expense without supporting documents, an invoice that fails the deductibility conditions, an aged receivable never reconciled. At finalization, the accountant has to decide whether to keep or exclude each of these, and every wrong call leaves exposure for years, because the finalization dossier is exactly what an inspection team pulls first.
That is why a corporate tax finalization service is not a filing exercise. Most of the work is a backwards review of the full year before anything is filed.
What is included
Full-year document review
Reconciling input and output invoices against contracts, payment documents and acceptance records. Identifying which expenses carry a risk of being disallowed, and why.
Deductibility and credit conditions
Checking non-cash payment evidence against the current threshold, the operating status of suppliers at transaction date, and the validity of e-invoices.
Revenue and cost reconciliation
Matching VAT declaration revenue against the financial statements and the general ledger. A gap between these three is one of the first triggers for a review.
Receivables and inventory
Aged receivables, differences between book and physical inventory, and provisions — the items hardest to explain when questioned.
Personal income tax finalization
Dependant registration files, commitments, withholding documents and the finalization filed on behalf of employees.
Preparation and filing
Preparing the finalization return and annual financial statements, filing the dossier, and handling follow-up requests from the tax authority.
How we work
| Step | Activity | Deliverable |
|---|---|---|
| 1 | Scoping: volume of documents, industry, number of years to be covered | Written quote before work begins |
| 2 | Handover and inventory of books and records for the period | Document handover record |
| 3 | Detailed review; list of issues and proposed treatment | Review report stating the risk on each item |
| 4 | Adjusting the books along the agreed treatment | Adjusted books and financial statements |
| 5 | Preparing and filing the finalization dossier | Filed dossier with confirmation |
| 6 | Follow-up and explanation where the authority requests it | Written explanations and supplementary files |
Points foreign-invested companies most often get caught on
- The old VND 20 million threshold. Many finance teams still apply it. It has been replaced — VAT under Law 48/2024/QH15 effective 1 July 2025, and corporate income tax under Law 67/2025/QH15 with Decree 320/2025/ND-CP effective 15 December 2025, setting the threshold from VND 5 million.
- Related party transactions. Management fees, cost allocations and intra-group loans need documentation that stands on its own, independent of the group’s internal policy.
- Expenses paid abroad on behalf of the Vietnamese entity. Common, and commonly disallowed for lack of qualifying documents.
- Expatriate personal income tax. Residency status, tax equalisation arrangements and split payroll each change the filing position.
The cost of skipping the review
Where tax is reassessed after an inspection, three amounts arise together: the additional tax recalculated for each period concerned; late payment interest of 0.03% per day under Article 59 of the Law on Tax Administration 38/2019/QH14 — roughly 10.95% a year — accruing from the original due date of that period rather than the date of detection; and an administrative penalty according to the nature of the breach.
Because interest runs from the original due date, an error in year one discovered in year four has already added more than 30% on top of the tax itself. Reviewing before filing is the cheapest way to stop that accumulation.
Fees
There is no standard price list. The fee depends on the number of years covered, the actual volume of documents, the industry, and the complexity of transactions in the period. After scoping, you receive a written quote before work begins, with no charges outside the agreed scope.
Frequently asked questions
Related services
Request a quote based on your actual records
Leave your details below and we will come back to you during working hours, Monday to Friday, 08:00 to 17:30 Vietnam time, to discuss scope and send a written quote. Initial scoping is free of charge.
Need finalization handled for the coming period?
Call to arrange scoping and receive a written quote.
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