Annual Tax on Enveloped Dwellings Calculator 2025/26

Reviewed by Mustafa Bilgic
UK Calculator Editor · Updated May 2026

ATED scope: who pays and when

Annual Tax on Enveloped Dwellings was introduced in April 2013 as an anti-avoidance measure aimed at properties wrapped inside companies (often offshore) to avoid SDLT and CGT. It applies to UK residential property worth over £500,000 owned by 'non-natural persons' — companies, partnerships with at least one corporate partner, and collective investment schemes.

The annual charge runs from 1 April to 31 March. The return and any payment are due by 30 April at the start of each chargeable period. Filing is mandatory even if a relief reduces the charge to zero — failure to file attracts a £100 penalty plus daily fees.

Common reliefs that reduce the charge to zero

Most company-owned UK BTLs claim 'property rental business relief': the property is genuinely let on commercial terms to an unrelated tenant, and the company is run as a trading rental business. This reduces ATED to zero, but the annual return is still required.

Other reliefs: property development, property trader, dwellings open to the public, financial institutions acquiring as part of lending, employee accommodation, farmhouses, and dwellings used for a charitable purpose. Each requires evidence and proper claim on the ATED1 return.

Company-owned £750,000 BTL, fully relief-claimed

Band: £500k-£1m. Charge if no relief: £4,400. With property rental relief: £0. ATED return still required.

£3m enveloped trophy home, owner's family living there (no relief)

Band: £2m-£5m. Full charge: £30,550 per year. Plus 15% flat SDLT was paid on purchase. Plus ATED CGT on disposal at 28%.

£12m London prime, used by overseas family briefly

Band: £10m-£20m. Full charge: £143,550 per year. Even if used for less than 3 months, no relief usually available unless it's a true rental business.

Common mistakes to avoid

• Forgetting to file the ATED return when a relief reduces charge to zero — penalty triggered.
• Filing late: £100 fixed plus £10/day after 3 months, capped at £900 plus 5% of unpaid tax.
• Using stale property valuations — the correct valuation date is 1 April 2022 (revalued every 5 years).
• Treating mixed-use properties as ATED-chargeable — only purely residential dwellings count.
• Ignoring the 15% flat SDLT regime that often applies on the company purchase too.

When to use this calculator

Run before deciding to envelope a UK property in a company. Compare ATED + 15% SDLT + 28% ATED-related CGT vs personal-name purchase + standard CGT. For most BTL purposes the standard limited company structure (with property rental relief) avoids ATED.

How this differs in Scotland, Wales and Northern Ireland

ATED applies to residential property in England, Scotland, Wales and Northern Ireland equally. Devolved property tax regimes (LBTT, LTT) interact differently with ATED's 15% flat SDLT counterpart in Scotland (no equivalent flat company rate).

When this calculator is and isn't the right tool

The Annual Tax on Enveloped Dwellings Calculator 2025/26 above is built for the most common UK 2025/26 scenarios in this tax area. It will be the right tool when your situation maps cleanly onto the inputs — single property or simple aggregation, standard HMRC rates and bands, and individual taxpayer (rather than complex trust or partnership structures). It is informational and does not replace tailored advice from a chartered tax adviser, especially for transactions above £500,000, cross-border situations, or where reliefs interact with each other. For year-end filings, always reconcile with HMRC's own free calculators on gov.uk before pressing submit on Self Assessment.

Closely related calculators

• UK SDLT 2026 — useful when you need a different angle on the same UK property tax topic, especially if your situation involves multiple types of property income or disposal.
• BTL SDLT — useful when you need a different angle on the same UK property tax topic, especially if your situation involves multiple types of property income or disposal.
• Landlord Tax — useful when you need a different angle on the same UK property tax topic, especially if your situation involves multiple types of property income or disposal.
• CGT on Property — useful when you need a different angle on the same UK property tax topic, especially if your situation involves multiple types of property income or disposal.
• Property Flipping Tax — useful when you need a different angle on the same UK property tax topic, especially if your situation involves multiple types of property income or disposal.

Glossary of UK property tax terms

HMRC

His Majesty's Revenue and Customs — the UK tax authority.

Tax year

6 April to the following 5 April. 2025/26 means 6 April 2025 to 5 April 2026.

Marginal rate

The rate of tax that applies to the next pound of income.

Self Assessment

The UK system for individuals reporting income tax outside PAYE.

Tax planning checklist

1. Confirm the figures input above match your actual position — purchase contract, mortgage offer or completion statement.
2. Cross-check the year (2025/26) — figures change every April. The tax year 2026/27 starts 6 April 2026.
3. Use HMRC's official calculator at gov.uk for the final filing figure; this calculator is informational.
4. Keep records for at least 6 years — HMRC's normal enquiry window. 21 years for fraud investigations.
5. Discuss any unusual transaction (joint purchase, gift, divorce settlement, trust) with a qualified tax adviser.
6. Submit your return online via Government Gateway — paper deadlines are earlier and penalties harsher.