The IMT and Stamp Duty Exemption for Young Home Buyers (Under 35) in Portugal in 2026 — A Practical Guide to the €330,539 Full-Exemption Threshold, the €660,982 Partial Band, Who Qualifies and How to Claim It

If you are under 36 and buying your first home in Portugal, the single biggest cheque you can avoid writing on completion day is the tax one. Since 1 August 2024, Portugal has fully exempted young first-time buyers from the two purchase taxes that normally add thousands of euros to a deal: IMT (Imposto Municipal sobre Transmissões Onerosas de Imóveis, the Municipal Property Transfer Tax) and Imposto do Selo (Stamp Duty). The relief — universally known as IMT Jovem — has since been widened twice, and for 2026 it wipes out both taxes entirely on homes worth up to €330,539. This guide explains exactly who qualifies, how much you save, how to claim it, and the one wrinkle that catches foreign buyers off guard.

What the exemption actually covers

Buying property in Portugal normally triggers two separate taxes at the moment of the deed (escritura). IMT is a sliding-scale transfer tax that can reach several percent of the price; Imposto do Selo is a flat 0.8% stamp duty on the same value. IMT Jovem removes both — in full, up to a threshold, and partially above it. There is no cashback and nothing to reclaim later: the taxes simply are not charged when you complete, provided you have applied correctly beforehand.

It is a genuinely large sum. On a €300,000 first home, a normal buyer would pay roughly €10,500 in IMT plus €2,400 in stamp duty — close to €13,000 that a qualifying young buyer keeps. That is money that can go toward the deposit, the notary, or the furniture instead of the state.

Who qualifies

The rules are strict and each condition must be met. To claim IMT Jovem you must:

• Be 35 or younger on the date of the deed. Age is measured at the moment you sign the escritura, not when you make the offer. Turn 36 before completion and you lose it.
• Be buying your first home. The purchase must be for your own permanent residence (habitação própria e permanente). You cannot have owned residential property — in whole or in part — at the time of purchase or at any point in the previous three years. Crucially, how you would have owned it does not matter: even a small inherited or gifted share, or bare ownership of a flat, disqualifies you.
• Not be a tax dependent. You must not be listed as a dependent (dependente) on someone else's IRS income-tax return in the year of the purchase.
• Buy a home, not land. The benefit applies to urban dwellings. Building plots and land for construction (terrenos para construção) are expressly excluded.

Nationality is not a barrier: the government's own guidance states the exemption applies regardless of the buyer's nationality. That makes it directly relevant to young foreign residents putting down roots in Portugal — but non-residents should read the section on the 7.5% rule below before assuming they qualify cleanly.

Buying as a couple? If both of you meet every condition, you both get full relief. If only one qualifies — say your partner is 37, or already owns a flat — the exemption applies only to the qualifying buyer's share of the property (typically half), and the other half is taxed normally.

How much you save: the 2026 thresholds

The value limits are updated each year in the State Budget. For 2026, in force since 1 January, they are:

In other words, buy a first home at or below €330,539 and you pay zero purchase tax. Buy between that and €660,982 and you still escape all the stamp duty and the IMT on the first €330,539 tranche, paying transfer tax only on the slice above the threshold. Cross €660,982 and the benefit vanishes entirely — you pay as any other buyer would.

These 2026 figures matter because outdated numbers are everywhere online. The €324,058 threshold that many pages still quote was the 2025 limit; the original 2024 figure was €316,772. Always work from the current €330,539 / €660,982 pair when you plan a 2026 purchase.

How to claim it

The exemption is not automatic. You — or, in practice, the notary, lawyer or solicitor handling your purchase — must claim it before the deed by filing the IMT declaration (Modelo 1) through the Tax Portal (Portal das Finanças), at an e-balcão desk, or in person at a Finanças office, ticking the codes that flag the young-buyer exemption. Only once that declaration is processed and shows no tax due can the escritura go ahead tax-free.

A few practical notes: if you are married or buying jointly, each buyer files a separate Modelo 1. Give your conveyancer plenty of notice that you intend to use IMT Jovem, and make sure the property is being registered as your permanent home — the paperwork has to say so. Keep proof of your age and of not having owned property before; the Tax Authority (Autoridade Tributária) can check.

The companion scheme: a 100% mortgage guarantee

IMT Jovem is often used alongside a second, separate measure aimed at the same buyers: the state mortgage guarantee (garantia pública). Under it, the government guarantees up to 15% of the loan, which lets banks lend up to 100% of the purchase price — removing the deposit hurdle that keeps many young buyers out of the market. The two schemes stack: you can use the tax exemption and the guarantee on the same purchase.

The guarantee has its own conditions. You must be aged 18 to 35, a Portuguese tax resident, own no other home, and have no debts to the tax office or social security; every co-borrower must qualify individually. The property cannot cost more than €450,000, and it must be your first permanent home. The guarantee lasts ten years and, at the time of writing, covers loans signed through 31 December 2026 — a window the government has repeatedly topped up with fresh funding. Because this scheme requires Portuguese tax residency, it is aimed at buyers already settled here rather than those buying from abroad. Bear in mind, too, that it interacts with the wider credit rules: the Bank of Portugal has tightened mortgage limits, so a 100% loan still has to fit within the affordability caps banks now apply.

The catch for foreign buyers: the new 7.5% non-resident rule

Here is the wrinkle that trips up expats. As part of a separate housing-tax package that took effect in May 2026, Portugal introduced a flat 7.5% IMT rate on purchases by buyers who are not Portuguese tax residents — with no brackets and no discounts — unless the buyer either becomes tax-resident (spending more than 183 days in the country over a 12-month period) or commits to doing so within two years of the purchase, or lets the property at a capped "moderate" rent.

IMT Jovem, by contrast, requires the home to be your own permanent residence, which in practice means living in it — and therefore being resident. In most real cases the two rules do not collide: a young person genuinely moving to Portugal to live in their first home will be on the resident track. But the precise treatment of a young buyer who is not yet tax-resident on the day of the deed is not clearly spelled out in the public rules. If you are buying before you have established tax residency in Portugal, do not assume IMT Jovem automatically shields you from the 7.5% charge — get written advice from your notary or a tax lawyer before you sign. This sits within a broader 2026 shake-up of housing taxation; see our rundown of the Habitação Fiscal package for the full picture.

Pitfalls to avoid

• It is a one-time benefit. IMT Jovem applies to your first acquisition only. Sell up and buy again and you will pay full IMT on the next home, even if you are still under 36.
• But there is no clawback if you sell early. Portugal's Tax Authority has confirmed you do not have to repay the exempted tax if you sell before living there six years — including if you sell to buy a new home, or move for a job. The exemption you already used is safe; you simply cannot claim it again.
• Any prior property share disqualifies you. A flat inherited from a grandparent, a share in a family home, even bare ownership counts as having owned property. Check your record before you count on the relief.
• Land is out. If you are buying a plot to build on, IMT Jovem does not apply to that purchase.
• Mind the thresholds and the calendar. Value limits change every January with the new budget; confirm the current figure the year you buy.

What this means for you

If you are a young resident buying your first flat: this is one of the most valuable perks available to under-36s in Portugal. Combined with the state mortgage guarantee, it can turn a purchase you thought needed a 20% deposit and €13,000 in taxes into one that needs neither. Tell your conveyancer up front and file the Modelo 1 before the deed.

If you are a foreign buyer not yet living in Portugal: tread carefully. The 7.5% non-resident rule can more than wipe out the benefit of the youth exemption if your residency status is not clear at completion. Time your purchase around your move, and get tax advice specific to your situation.

If you are buying with an older or already-owning partner: you will still get partial relief on your share — worth having, but budget for full tax on the rest.

Young Portuguese and foreign residents already lean on a growing set of age-based reliefs, from this purchase-tax exemption to the IRS Jovem income-tax break for young workers. IMT Jovem is the one that lands at the biggest single moment — the day you buy a home. For a fuller map of what you will owe as an owner afterwards, see our guide to property tax in Portugal in 2026. Used well, and claimed on time, IMT Jovem can be the difference of many thousands of euros — so plan for it before you sign, not after.