Selling a property that has been used for alojamento local is not always the same as selling a private home that was never connected to a business. The dates of business use, the date the property returned to the owner's private assets and the evidence for acquisition, works and sale costs can all affect the tax analysis.
The practical rule: build the property's tax timeline before accepting an offer. Do not start with “sale price minus purchase price” and assume the result is the taxable gain.
For the separate registration question when an AL property changes hands, see can an AL registration be transferred?
This guide reflects the national IRS rules available on 27 October 2026. It is general information, not an individual tax calculation. Ask a Portuguese certified accountant or tax lawyer to apply the rules to your ownership, residence and accounting history.
Quick answer
- If the property is still allocated to the owner's business or professional activity when sold, the gain can fall within Category B.
- If a property previously allocated to the activity returned to the owner's private assets and is sold before three years have elapsed, the current IRS Code also applies Category B rules to the gain.
- If the sale falls under ordinary Category G rules, documented improvement and acquisition or disposal expenses may be relevant, subject to Article 51.
- Works carried out while the property was allocated to the business are expressly excluded from the Category G improvement-cost rule in Article 51.
- Being 65 or retired does not, by itself, make the gain tax-free. The financial-product reinvestment relief is tied to the sale of a qualifying main home and has cumulative conditions.
A timeline that changes the question
Consider a simplified example. Manuel bought an apartment in 2016 for €180,000 and initially used it as his permanent home. In January 2020, he moved out and began operating the apartment as AL in his own name. He later ended the operation and transferred the property back to his private assets on 31 December 2024. In October 2026, he receives an offer of €400,000.
Manuel also remembers spending about €60,000 on improvements, both before and during the AL activity. He has invoices for some purchase and sale costs but cannot find the invoices and payment evidence for most of the works.
The headline arithmetic is €220,000: €400,000 minus €180,000. It is not a tax calculation. The property's allocation history, applicable acquisition-value rules, documented costs, depreciation or impairment history where relevant, and the exact tax category still have to be considered.
The three-year rule for a former business property
The current Article 10 of the Portuguese IRS Code states that gains from the sale of real rights over property that was allocated to the taxpayer's business or professional activity are taxed under Category B rules when the sale takes place before three years have elapsed after transfer back to the taxpayer's private assets.
In the example, fewer than three years separate 31 December 2024 and the proposed sale in October 2026. That makes the Category B rule a central issue. Manuel should not assume that ending the AL activity immediately converted the future sale into an ordinary private-property disposal.
The numbering inside Article 10 changed in May 2026, but the three-year rule remains in the current consolidated text. This is one reason to link decisions to the rule in force on the sale date rather than to a paragraph number copied from an older article.
Why the tax category matters
Category B and Category G do not use an interchangeable calculation. The property's history can affect which rules, values and expenses are relevant. A taxpayer should not take a checklist written for an ordinary private-property gain and apply it unchanged to a Category B sale.
For a property that was accounted for as part of an activity, the adviser may need to review:
- the opening or alteration of activity and the dates of AL operation;
- how and when the property was allocated to, and removed from, the activity;
- whether income was determined under the simplified regime or organised accounts;
- tax returns and asset or depreciation records for the relevant years;
- the purchase deed, acquisition costs and any value corrections allowed by law;
- the proposed sale date and contract terms.
Start with documents, not a rough online calculator.
Documented expenses: what Article 51 says
For gains calculated under the relevant Category G property rules, Article 51 of the IRS Code allows the acquisition value to be increased by qualifying improvement expenditure proven to have been incurred in the previous 12 years, and by necessary acquisition and disposal expenses that were actually incurred. The Tax Authority's property-gain FAQ also stresses proof of the improvement expenditure.
Article 51 adds an important limitation: improvement expenditure incurred while the property was allocated to the business or professional activity is not considered under that Category G provision.
Manuel's missing invoices therefore create two different questions. First, can he prove that the expenditure occurred, who paid it and what it related to? Second, even if proved, was it incurred during a period and under a tax category in which that item can be considered?
Examples often reviewed by advisers include IMT and stamp duty on acquisition, deed and registration costs, estate-agent commission and qualifying improvement works. Listing an expense does not guarantee deductibility. Keep the invoice, proof of payment, contract or description of the service and the date it relates to.
Does age or retirement remove the capital gain?
No. Age or retirement alone is not an exemption.
The IRS Code contains a reinvestment route for a taxpayer, spouse or civil partner who is retired or at least 65, using proceeds from the sale of a qualifying own permanent home for specified financial products. The current list includes a qualifying life-insurance contract, individual membership of an open pension fund, the public capitalisation scheme and a Pan-European Personal Pension Product. The purchase must generally occur within six months, and other conditions apply.
The Tax Authority's Article 10 of the IRS Code on capital gains presents these as cumulative conditions connected to the sale of a permanent home. A property that was once Manuel's home but had been used as AL and was not his permanent home at sale should not be assumed to qualify merely because he is 70 and retired.
The pre-sale document pack
Before signing a reservation agreement or accepting an offer, prepare one folder with:
- purchase deed and financing documents;
- IMT, stamp-duty, notary and registration evidence;
- the current caderneta predial and land-registry certificate;
- activity-opening and alteration statements, including the dates connected to AL;
- annual tax returns and accounting records for the business-use years;
- invoices and proof of payment for works, grouped by date;
- management, architect, licence and contractor documents where relevant;
- estate-agent agreement and expected sale expenses;
- the proposed sale date, price and expected mortgage repayment.
Give the adviser a one-page chronology as well. A clean timeline often reveals the key question faster than a box of unlabelled receipts.
Questions to ask the accountant before the sale
- Was the property formally allocated to my activity, and when did that allocation end?
- Will the proposed sale date fall inside the three-year Category B period?
- Which acquisition value and correction rules apply in my case?
- How were depreciation or impairment amounts treated during the activity?
- Which expenses can be used under the applicable category, and what proof is missing?
- Could changing the sale date change the category, and what other costs or risks would that create?
- Does any main-home reinvestment relief genuinely apply to the facts at the sale date?
- What should be reported in the annual return, and which records should be retained?
If you are still setting up the activity, EazyAL's guide to opening AL activity with Finanças explains the operational starting point. It is easier to preserve the right records from day one than to reconstruct them before a sale.
Frequently asked questions
Is the gain always Category B when an AL property is sold?
No. The classification depends on the property's status and history. A sale while the property is allocated to the activity, or within the three-year period after return to private assets, raises Category B treatment. Obtain advice on the exact facts.
Can I deduct renovation costs without invoices?
Do not assume so. The Category G rule requires qualifying expenditure to be proven, and the applicable category and timing also matter. Collect invoices and proof of payment and let the adviser assess each item.
Do works completed during the AL years count under Article 51?
Article 51 expressly excludes, from its Category G improvement-cost provision, works carried out while the property was allocated to the business or professional activity.
Should I wait until three years have passed before selling?
Not automatically. The date can affect tax classification, but price, financing, holding costs, personal plans and future law also matter. Compare scenarios with an adviser before changing a commercial decision solely for tax reasons.
Does being retired make the sale tax-free?
No. The reinvestment route for people who are retired or at least 65 has cumulative conditions and is connected to a qualifying permanent home. Age by itself is not enough.
The practical takeaway
A former AL property carries a history that may remain tax-relevant after the last guest checks out. Record the allocation dates, keep the underlying invoices and ask for a written pre-sale calculation under the rules expected to apply on the completion date. That preparation gives the owner a far better basis for evaluating an offer than a simple purchase-price-versus-sale-price subtraction.
EazyAL supports the day-to-day organisation of Portuguese AL operations. It does not calculate capital gains or replace advice from a certified accountant or tax lawyer.
