IMT in 2027: what could change in the brackets, IMT Jovem and stamp duty

In short

• There is no approved IMT table for 2027 yet. The figures below are scenarios; the IMT calculator uses the 2026 tables in force.
• If the limits rose by 2.0%, a €300,000 main home on the mainland would incur €209.15 less IMT. This example assumes one buyer without IMT Jovem and a taxable property value (VPT) no higher than the price.
• Indexing the brackets can also raise the IMT Jovem ceilings. It does not, by itself, change the general stamp duty rate or the rate for non-residents.

How much a home purchase could change

Compare the current tables with two indexation assumptions: +2.0% and +2.3%. These examples are inspired by the last two budgets; they carry no assigned probability and do not predict the Government’s proposal.

The same purchase, side by side

How much could your IMT change?

2027: an illustrative hypothesis, with no approved figures yet.

Purchase price: €300,000

IMT 2026 · in force€10,542.04

IMT 2027 · hypothetical +2.0%€10,332.89

IMT difference

−€209.15

Purchase stamp duty

€2,400.00Unchanged in both scenarios

The chart compares IMT only. Stamp duty is shown separately.

Main home on the mainland; one buyer, no IMT Jovem relief and no mortgage. The VPT (taxable property value) is assumed to be no higher than the price: the tax base is the greater of the two.

Purchase price: €300,000. IMT 2026 · in force: €10,542.04. IMT 2027 · hypothetical +2.0%: €10,332.89. IMT difference: −€209.15. Purchase stamp duty: €2,400.00. Unchanged in both scenarios.

View the table with every price and scenario

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IMT on a mainland main home, one buyer: the 2026 table in force and projections for 2027; stamp duty of 0.8% in every case

Price	IMT 2026 · in force	IMT 2027 · hypothetical +2.0%	IMT 2027 · hypothetical +2.3%	Stamp duty (0.8%)	IMT difference (+2.0%)
€200,000	€3,542.04	€3,379.17	€3,359.68	€1,600.00	−€162.87
€300,000	€10,542.04	€10,332.89	€10,301.50	€2,400.00	−€209.15
€400,000	€18,236.65	€17,961.39	€17,920.09	€3,200.00	−€275.26
€500,000	€26,236.65	€25,961.39	€25,920.09	€4,000.00	−€275.26

In the €300,000 example, indexation of 2.0% would take IMT from €10,542.04 to €10,332.89. Stamp duty would remain €2,400.00; the two taxes would total €12,732.89, compared with €12,942.04 today.

That is a difference of 2.0% of this example’s IMT. It is not a forecast of house prices: a change in price or VPT also changes the result.

How bracket indexation works

Article 17 of the IMT Code sets the limits and rates. In recent years, State Budget laws have raised the limits while retaining the rates in the housing tables. There is no automatic annual increase: each change requires legislation.

In the progressive brackets, the calculation applies the rate and subtracts the parcela a abater, or deduction. This avoids taxing the entire value at the highest marginal rate. The upper bands use flat rates on the full value; crossing into those bands does not follow the same continuity rule.

The tax authority publishes practical tables with the deductions. The IMT table guide explains the current table, including regions and property types.

What happened from 2024 to 2026

The increases were 5.0% in 2024, 2.3% in 2025, 2.0% in 2026. This history helps build scenarios; it does not determine what will be approved for 2027.

The IMT Jovem column shows the full-exemption ceiling on the mainland. The regime has applied since 1 August 2024 and does not need annual renewal. Its ceilings follow the amounts in the table as long as the law retains that link.

What could change in 2027

Brackets and IMT Jovem

With hypothetical indexation of 2.0%, the mainland limits would be:

The IMT Jovem full exemption would rise from €330,539 to €337,150. The upper limit for partial relief would become €674,202.

Updating the limits does not itself change personal eligibility. Conditions include being 35 or younger, not being an IRS dependent in the purchase year, and meeting the first-acquisition and previous housing-ownership requirements. See the full conditions in the IMT Jovem guide.

Stamp duty and non-residents

General purchase stamp duty is 0.8% on the higher of price and VPT; for credit lasting five years or more, the rate is 0.6%. These rates have no brackets. The examples assume they remain unchanged and exclude exemptions and mortgage stamp duty.

The general 7.5% non-resident rate is not indexed either. Its own exceptions are explained in What changed in IMT for non-residents in 2026.

The planned OE2027 calendar

The parliamentary calendar was announced after the conference of leaders on 23 September 2026. The voting dates below are those reported by Observador; approval and commencement depend on the legislative process.

1. By 12 October 2026

   Proposal tabled

   The first opportunity to see the proposed limits. The usual 10 October deadline falls on a Saturday.

2. 27 and 28 October

   General debate

   The general vote is scheduled for 28 October.

3. 29 October to 24 November

   Detailed consideration

   Measures and amendments are examined. The final vote is scheduled for 24 November.

4. After approval

   Promulgation and publication

   The text published in the Diário da República sets the final figures and application dates.

5. 1 January 2027, if the law provides

   New rules apply

   The tax authority publishes practical tables. We will confirm the figures and start date before updating the calculator.

What if the budget is not approved?

The brackets do not rise simply because the year changes. Without legislation amending them, the limits in the IMT Code remain. Article 58 of the Budget Framework Law also provides for extending the previous budget in specified situations, including rejection of the proposal or failure to vote on it.

A State Budget law can amend IMT, but it is not the only way to do so: the non-resident regime itself changed through an authorised decree-law in May 2026.

What we will update here

This address stays the same, with a dated entry for each substantive update:

• After the proposal: proposed limits and recalculated examples.
• After the votes: approved changes and what remains pending.
• After publication and the tax authority’s tables: final figures and their application date.

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Sources

• IMT Code, article 17, rates and article 9, exemptions
• Law 73-A/2025 of 30 December, State Budget for 2026 — Diário da República
• Practical tables from 2023 to 2026 — circulars linked in the historical table above
• Decree-Law 97/2026, non-resident rule — Diário da República
• Decree-Law 48-A/2024, IMT Jovem — Diário da República
• Budget Framework Law, article 58 — Lisbon Regional Prosecutor-General’s Office
• Calendar announced on 23 September 2026 — Observador