# Portugal Opens First Filing Window for 6% Construction VAT Refunds

> From 1 October 2026, builders and self-builders of moderate-price homes can finally file for the 6% VAT refund, backdated to September 2025.

- Source: https://www.growinportugal.com/news/6-construction-vat-refunds-open-their-first-real-filing-wind-2026-09-19
- Publisher: GrowIN Portugal (https://www.growinportugal.com)
- Published: 2026-09-19
- Last reviewed: 2026-09-19
- Language: en

> **Key figures — as of 2026-09-19:** 6% reduced VAT rate applies to construction/rehabilitation contracts for homes sold up to **€660,982** or rented up to **€2,300/month** — retroactive to procedures started **25 September 2025**, running to **31 December 2029** — self-builders can claim the refund of the **17-percentage-point** gap (23% minus 6%) within **12 months** of their usage licence, with the tax authority having **150 days** to pay — refund requests tied to usage documentation issued in the first three quarters of 2026 **only open on 1 October 2026**.

## The date that actually matters

Portugal's 6% construction VAT has existed on paper since May, when Decree-Law 97/2026 was published in Diário da República. But paper eligibility and an actual, working refund channel are two different things — and for months there wasn't one. That changes on 1 October, when the Autoridade Tributária's electronic system finally opens for the first tranche of claims. Refund requests relating to the first three quarters of 2026 can only be submitted from 1 October 2026. For anyone who broke ground, renovated, or self-built since last September, this is the first moment the promised tax break becomes something you can actually file for.

## What qualifies, and for how long

The regime covers two different mechanisms. Developers and contractors selling or renting moderate-price housing can apply the 6% rate directly on invoices. Individuals building their own home — the self-build route most relevant to foreign buyers renovating a plot or a ruin — pay the standard 23% throughout construction and then claim back the difference afterwards.

The eligibility ceiling is precise: preços de venda até um máximo de 660 mil euros ou rendas até ao limite de 2300 euros por mês — in practice, sale prices up to roughly €660,982 or rents up to €2,300 a month. Crucially, the measure reaches back further than most tax changes do. The 6% VAT rate on construction or rehabilitation of moderate-priced housing has retroactive effect, covering works whose procedural initiative begins between 25 September 2025 — the date of the political announcement of these measures — and 31 December 2029, provided VAT becomes chargeable by 31 December 2032. "Procedural initiative" means the date a building permit or prior communication was filed with the câmara — not the date invoices were paid — so projects licensed a year ago can still qualify.

## How the self-build refund actually works

For anyone building their own permanent home, the process runs in a fixed sequence. The request must be submitted electronically to the tax authority within 12 months of the issuance of the documentation relating to the start of use, with the tax authority having a maximum of 150 days to process the refund. The claim isn't a quick tick-box: it must be accompanied by documents identifying the property, the owners, the works contracts, the property's usage title, proof of land value and the construction cost invoices. And there's no cash-in-hand shortcut — the refund is paid exclusively by bank transfer to the IBAN the taxpayer has registered with the tax authority.

The property doesn't just need to qualify on paper — it has to be lived in. Miss the residency requirement and the benefit disappears retroactively, alongside a real penalty on top: sell or stop using the home as your permanent residence within the qualifying window and the buyer faces a **10-percentage-point** surcharge on IMT, according to guidance circulating among Portuguese tax advisers this year.

## GrowIN's number: what it means in euros

Take a foreigner self-building a €250,000 home (excluding VAT) on a plot outside an Urban Rehabilitation Area. Paying standard VAT throughout construction means handing over €57,500 in IVA. Reclaiming the 17-point difference down to the 6% rate — €15,000 — puts **€42,500** back in that owner's account, assuming the AT processes the claim within its 150-day window. That's roughly the cost of a mid-range kitchen and bathroom fit-out, recovered purely through paperwork most builders never mention to their foreign clients.

*"For foreign self-builders, 1 October isn't a footnote — it's the day a promised tax break becomes a bank transfer,"* says GrowIN Portugal Editorial.

## Practical implications for foreigners

Contractors serving foreign clients still generally need to invoice at 23% for new-build self-construction outside rehabilitation areas — direct 6% invoicing carries compliance risk for the builder and can shift liability back onto the buyer during an inspection. Keep every invoice itemised as "empreitada de construção" with the property clearly identified; invoices for materials bought directly by the owner, rather than incorporated by the contractor, are excluded from the refund. Foreigners without a Portuguese IBAN linked to their Finanças record should sort that before filing, since the refund has no alternative payment route. This sits alongside the wider tax landscape foreigners should already be tracking — see our [tax & NIF](/tax-and-nif/) hub for NIF, fiscal representation and residency basics.

## What to watch next

The AT has signalled it will scrutinise land value and demolition costs closely, and rehabilitation projects outside formal Urban Rehabilitation Areas face separate, tighter rules still being clarified in parliament. Anyone unsure whether their project genuinely qualifies — particularly co-owned properties, where every titleholder must use the home as their permanent residence for the benefit to apply — should get a certified accountant to check the file before the 1 October window opens, not after a rejection. GrowIN's [services](/services/) team can help foreign buyers and self-builders assemble the documentation Finanças will ask for.

## Sources

- [ECO (Economia Online)](https://eco.sapo.pt/2026/07/23/obras-de-reabilitacao-fora-do-regime-de-devolucao-do-iva/)
- [idealista/news](https://www.idealista.pt/news/imobiliario/construcao/2026/05/21/75569-iva-a-6-na-construcao-abrange-obras-iniciadas-em-setembro-de-2025)
- [Contas Poupança](https://contaspoupanca.pt/impostos/2026-05-27-iva-a-6-nas-obras-tudo-o-que-precisa-de-saber-sobre-as-novas-medidas-d8c17638)
- [Andersen in Portugal](https://pt.andersen.com/2026/05/27/habitacao-alteracoes-fiscais-e-novos-regimes-de-incentivo-decreto-lei-n-o-97-2026/)

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© GrowIN Portugal. Cite as: GrowIN Portugal, "Portugal Opens First Filing Window for 6% Construction VAT Refunds", https://www.growinportugal.com/news/6-construction-vat-refunds-open-their-first-real-filing-wind-2026-09-19