Optimize Your Tax Return in Portugal: Complete Guide to Tax Deductions

1. Tax Deductions in Portugal: Fundamental Principles

Portugal's tax system allows taxpayers to reduce their income tax (IRS) through various tax deductions. This relatively generous mechanism is based on a simple principle: certain everyday expenses can be partially deducted from your tax liability.

To benefit from these deductions, two essential conditions must be met:

• Provide your tax identification number (NIF) when making purchases
• Verify and categorize your invoices on the e-Faturas portal before the annual deadline (usually the end of February)

This system, introduced to combat tax fraud, encourages consumers to systematically request invoices with their NIF, creating traceability for economic transactions.

2. Different Categories of Deductible Expenses

Portugal offers deductions on many categories of everyday expenses:

General Family Expenses: All expenses that don't fall under a specific category (food, clothing, appliances, etc.)

Healthcare: Medical consultations, medication, analyses, medical equipment, glasses, dental care, etc.

Education: School fees, books, school supplies, extracurricular activities, university fees, professional training, etc.

Housing: Mortgage interest (for contracts before 2011), rent for primary residence, energy renovation work, etc.

Nursing Homes: Accommodation costs in facilities for the elderly

Vehicle Maintenance: Repairs for motor vehicles (cars, motorcycles)

Restaurants and Hotels: Restaurants, cafes, hotels, tourist accommodations

Veterinary Care: Consultations and treatments for pets

Public Transportation: Bus, metro, train tickets and passes, etc.

Sports Activities: Gym memberships, sports clubs, etc.

3. Understanding Deduction Limits and Percentages (2025 figures)

Each expense category is subject to specific rules and precise limits:

General Family Expenses:

• 35% of expenses up to a limit of €250 per taxpayer
• For couples filing jointly, the limit is €500 (€250 per spouse)
• For single-parent families, 45% of expenses up to €335
• This category covers practically all daily expenses (water, electricity, gas, communications, food, fuel, clothing, etc.)

Healthcare:

• 15% of expenses up to a limit of €1000 per household
• This deduction includes all expenses for healthcare goods and services, regardless of the applicable VAT
• For expenses subject to 23% VAT, a medical prescription is necessary
• Included are: consultations, examinations, medications, masks and hand sanitizer, glasses, prosthetics, hospitalization costs, health insurance, etc.

Education:

• 30% of expenses up to a limit of €800 per household
• 10 percentage point increase for families with students in establishments located in the interior of the country or autonomous regions, with a ceiling of €1000
• For relocated students (up to 25 years old, studying more than 50 km from the family home): possibility to deduct €400 of rent per year up to a ceiling of €1100
• Included are: nurseries, schools, textbooks, school meals, language courses, music, theater, tutoring, etc.

Housing:

• 15% of mortgage interest for loans contracted before December 31, 2011, up to a limit of €296
• For taxpayers with taxable income below €8059, this ceiling is raised to €450
• For incomes between €8059 and €30000, the ceiling is calculated according to a progressive formula
• 15% of rent for primary residence, with a general ceiling of €600 (€900 for taxpayers with taxable income below €8059)

Nursing Homes and Home Care:

• 25% of expenses up to a ceiling of €403.75
• Applicable to nursing home and home care costs for the taxpayer, spouse, and certain family members

Alimony:

• 20% of alimony expenses, without limit
• Only for alimony established by court decision or approved agreement

VAT Included in Invoices:

• 15% of VAT paid in the sectors of car repair, hotels, restaurants, hairdressers, veterinary services, up to a limit of €250 per taxpayer
• 100% of VAT paid on social passes and transport tickets
• 35% of VAT on veterinary medications
• 30% of VAT paid on gym fees

Domestic Work:

• 5% of costs supported for the employment of domestic staff, up to €200 per household
• The employer must declare these charges to the tax administration

4. Practical Guide: Using e-Faturas Effectively

To benefit from these deductions, you must verify and categorize your invoices on the e-Faturas portal before the deadline (usually February 27 of the following year). Here's how to proceed:

1. Logging in to the portal: Go to e-Faturas (www.efaturas.gov.pt) with your NIF and password
2. Accessing your invoices: In the menu, select "Despesas Dedutíveis em IRS" then "Adquirente" and finally "Verificar Faturas"
3. Validating pending invoices: A message indicates the number of invoices to validate. Click on "Complementar informações Faturas"
4. Categorization: For each invoice, select the appropriate category (healthcare, education, etc.)
5. Special case for professional activities: If you are self-employed, specify whether the invoice corresponds totally or partially to your professional activity
6. Medical prescriptions: For healthcare expenses subject to standard VAT (23%), associate your medical prescriptions to benefit from additional deductions

The e-Faturas application is also available on smartphones (Android and iOS) for more regular monitoring of your deductible expenses.

5. Tips for Maximizing Your Deductions Throughout the Year

To optimize your tax deductions, adopt these best practices:

• Systematize NIF requests: Systematically request the addition of your NIF on all your invoices, even for small amounts
• Regularly check your invoices: Consult your e-Faturas account monthly to ensure that all your expenses are correctly registered
• Distribute NIFs in your household: For couples, alternate the use of NIFs according to the ceilings already reached in certain categories
• Keep paper invoices: Keep the originals of important invoices for at least 4 years, particularly for healthcare expenses
• Organize your expenses: Plan certain costly purchases over different tax years if you are approaching the ceilings

6. Tax Calendar: Important Dates to Remember

Here are the main deadlines not to miss:

• January 1 - December 31: Period for collecting invoices with NIF
• January 1 - February 27: Period to verify and categorize your invoices from the previous year on e-Faturas
• March 1 - March 10: Consultation of the provisional amount of deductions calculated by the tax administration
• March 15 - March 31: Period for claims in case of disagreement on the amount of deductions
• April 1 - June 30: Period for filing the annual income tax return (IRS)

It is strongly recommended not to wait until the last days before the deadline to perform your verifications on e-Faturas, as the portal may experience significant slowdowns.

7. Frequently Asked Questions about Tax Deductions in Portugal

Q: What to do if an invoice doesn't appear on e-Faturas? A: You can manually add missing invoices via the "Registar Faturas" option on the portal, specifying the merchant's information and the amount.

Q: Are foreign invoices deductible? A: No, only invoices issued by Portuguese companies with a Portuguese NIF are eligible for deductions.

Q: How do deductions work for a married couple? A: For couples who file a joint declaration, expenses are generally grouped together, but certain ceilings apply individually.

Q: Are deductions possible for non-habitual residents (NHR)? A: Yes, holders of NHR status can also benefit from these tax deductions on their taxable income in Portugal.

Q: How do I know if I've reached the ceiling in a category? A: The e-Faturas portal displays a counter for each expense category, allowing you to track your progress towards the ceilings.

Conclusion

Tax deductions represent a significant opportunity to reduce your tax burden in Portugal. By understanding the different eligible categories and adopting a methodical approach to collecting and verifying your invoices, you can save several hundred euros each year.

Remember that the key to success lies in two simple habits: systematically requesting your NIF on your invoices and regularly checking your e-Faturas account.

If you wish to further optimize your tax situation in Portugal or if you have specific questions regarding your personal case, don't hesitate to contact me for a personalized consultation.

Mounia Mikou