IRS 2025: what you can do for your IRS
The IRS deadline has already begun. Find out what you need to confirm, when to hand it in and what simulations you can do to avoid mistakes and maximize your refund.
1. The deadline has already started - but there's no reason to rush
As of April 1, 2026, the deadline for filing the personal income tax return for 2025 is open. You have until June 30th.
Using this time well, checking, simulating and then submitting, can make all the difference to the final result.
2. When to deliver - not in the first days, not in the last days
In the first few days, errors may appear on the Tax Authority's platform. At the end of the period, the system is more overloaded. The ideal is to choose a time in between.
3. Automatic delivery - when it makes sense
Automatic delivery can be useful for simple situations. Even so, you should always simulate before submitting.
If your situation is more complex, confirm all the data and opt for manual submission after validation.
4. The essentials to confirm before submitting
4.1 Household
- Income: check that it is correctly declared.
- Dependents: check that they are listed correctly.
- Displaced student: check that you are registered.
4.2 Deductions and expenses
- Health and education: review all invoices.
- Housing: check mortgage interest rates.
- VAT: only counts if validated in e-invoice.
4.3 Special situations
- Incapacity: confirm communication to AT.
- IRS Jovem: check if it's applied.
- PPR: evaluate before using the deduction.
4.4 Important simulations
- Joint vs separate delivery: simulate both.
- Bundling: compare before you decide.
These are some of the main rules for the IRS in 2025. As each case is unique, it may be useful to consult a certified accountant to ensure the best result.
