Quick Answer
Tax losses must be tracked by fiscal year of origin, updating, application, and balance. Before amortizing them, confirm the tax return and working papers; document each reduction and monitor the legal period to maintain traceability and rights.
Manage tax losses by fiscal year with origin, updating, applications, balance, and support before reducing profits.
Do Not Apply a Balance Without Origin
A carried-over figure without tax returns and working papers must be reconstructed before affecting the tax.
File by Fiscal Year
- Tax return of the year of origin.
- Working papers for the loss.
- Updating factors and dates.
- Applications by fiscal year.
- Pending balance and historical documentation.
Control Schedule
- Separate by origin.
- Validate tax return and calculation.
- Update with correct dates.
- Apply against available profit.
- Reconcile balance and maintain continuity.
The Tax Loss Has a History
Tax losses can reduce profits of subsequent fiscal years within the applicable legal period. Control must be maintained by origin and not as a single accumulated balance.
Each application requires calculation, updating, and continuity. If the company stops applying a loss when it could, there may be consequences regarding the pending right.
Columns That Must Not Be Missing
| Field | What It Documents | Control |
|---|---|---|
| Origin | Fiscal year and tax return | Do not mix |
| Updating | Factors and periods | Official source |
| Application | Profit reduced |
Errors That Consume the Balance
- Mixing losses from multiple fiscal years.
- Updating with incorrect periods.
- Applying more than the available profit.
- Not keeping the original tax return and schedule.
Case: Carried-Over Balance Without Supporting Papers
The company receives a schedule with a global balance but without detail by fiscal year. Before applying it, reconstruct tax returns, working papers, updates, and amortizations. Differences remain under review until sufficient support is recovered.
A tax loss is worth what its file can demonstrate: origin, tax return, updating, applications, and balance.
— Fintax
Sources and Further Reading
Consult official sources: ISR Law, Federal Fiscal Code.
To complete the process within Fintax, review: corporate annual tax return, preventive fiscal closing, compliance opinion.
Frequently Asked Questions
How long can it be applied?
Check the current legal period and count from the fiscal year of origin.
Can I keep a global balance?
It is not recommended. Keep layers by fiscal year and application.
What if I don't have supporting papers?
Reconstruct from tax returns and accounting before using the balance.
What to Do Now
Turn this review into a file with a responsible person, date, source, and evidence. If there is a material difference, an expired obligation, or a decision that changes the calculation, validate the case with your accounting responsible before filing, canceling, or paying.
