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A return filed late, or tax under-declared: how much do you lose?

Pick your situation and enter a few figures. You will see the fine usually applied, the late-payment interest, and the strategy to lose the least in your exact situation, in the free [PDF Dashboard] download.

Calculated under current law; Kaizen updates it as soon as the law changes. See the rules used

Which situation are you in?
days
million VND

Leave it empty if the return has no tax due.

Rules used
  • Late-filing fine bands: Article 13, Decree 125/2020/ND-CP, as amended by Decree 310/2025/ND-CP. Fines for individuals and household businesses are half.
  • 20% fine on under-declared tax, none when a supplementary return is filed before an inspection decision: Articles 44 and 45, Law on Tax Administration 108/2025/QH15.
  • Late-payment interest of 0.03% a day: Article 16.2(a), Law on Tax Administration 108/2025/QH15.

Related service

Tax Reporting

Want to catch mistakes before they become fines? Kaizen Accounting files every return on time once your documents arrive on schedule, and checks each one in 3 layers first, so mistakes are fixed before they cost a single dong in fines.

What we do in this service
  • Prepare and file VAT, PIT and provisional CIT returns on time, once documents arrive on schedule.
  • Flag unusual expense ratios against industry averages before filing.
  • Prepare annual financial statements and CIT/PIT finalization, reviewed in 3 layers before filing.
  • Represent you and defend the figures whenever the tax office asks.
  • Apply the latest tax exemptions, reductions and deferrals for your company.
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Clean books, correct tax, lasting partnerships

Whether you need tax or accounting advice or want to join the Alliance, Kaizen replies within 24 hours, free of charge.