Tax statute of limitations (collection) — 5 years to collect
The Brazilian tax statute of limitations on collection ("prescrição tributária") is the 5-year period within which the Public Treasury may judicially collect a definitively assessed tax credit. Governed by Article 174 of the National Tax Code (CTN), it runs from definitive assessment (after a final unappealable administrative decision or the lapse of the defense period). Once the period elapses, the right to collect is extinguished. Brief for tax directors and counsel reviewing legacy debts.
Starting point and interruptions
The collection period starts from the DEFINITIVE ASSESSMENT of the tax credit:
- Ex officio assessment: 30 days after notification (if not challenged);
- Assessment with a challenge: the date of the final unappealable administrative decision;
- Self-declaration with non-payment (DCTF, GFIP returns): the due date of the declared and unpaid tax.
Grounds for INTERRUPTION (CTN Art. 174, sole paragraph):
- A judge's order directing service of process in a tax foreclosure;
- Judicial protest (where authorized by state law);
- An unequivocal judicial act placing the debtor in default;
- An unequivocal act by the debtor acknowledging the debt (an installment plan, a confession).
Intercurrent limitation — STJ Theme 1,184
The intercurrent statute of limitations ("prescrição intercorrente") occurs in the course of a tax foreclosure — when the proceeding stalls due to the Treasury's inaction. The STJ (Superior Court of Justice) set the binding thesis in Theme 1,184:
- After the foreclosure is suspended for 1 year (Art. 40 of Law 6,830/1980), the 5-year limitation period begins automatically;
- Once the period elapses, the intercurrent limitation must be recognized ex officio by the judge;
- The suspension must be notified to the Treasury — without notice, the period does not begin;
- An ineffective search for the debtor's assets does NOT interrupt the intercurrent limitation.
This thesis enabled the dismissal of thousands of stalled tax foreclosures — a strategic defense in old cases.
Frequently asked questions about the tax statute of limitations
Can a time-barred tax be collected again?
No. The statute of limitations extinguishes the tax credit (CTN Art. 156, V) — the Treasury permanently loses the right to collect. Any subsequent assessment or registration as overdue debt can be set aside through a writ of mandamus, a motion against the foreclosure, or an annulment action.
Does an installment plan interrupt the limitation period?
Yes. Joining an installment plan (REFIS, a tax settlement) is an "unequivocal act of debt acknowledgment" (CTN Art. 174, IV) — it interrupts the limitation period, which then restarts in full. For this reason, joining an installment plan for an already time-barred debt "revives" the credit in the Treasury's favor — caution is required.
Must the intercurrent limitation be raised by the debtor?
No — it can be recognized ex officio by the judge. In practice, however, it usually depends on the debtor prompting the judicial review through a motion against the foreclosure or a pre-foreclosure objection. A debtor's inaction can result in a foreclosure running for years without anyone noticing the limitation.
How do we identify potentially time-barred debts?
Through a technical review of the debt statement with the Treasury plus a chronology of procedural acts. For federal debts, consult the e-CAC and SIEFI systems; for state debts, the SEFAZ system; for municipal debts, the City Hall. An audit of old debts can free up significant cash through recognition of the statute of limitations.