Skip to content
HorizonUK Tax Solutions

UK Tax Adviser for Portugal

UK tax advice for life between the UK and Portugal

Departure-year returns, the new UK-Portugal treaty on pensions, landlord and property filings, and arrival planning for people coming the other way, handled remotely on fixed fees agreed first.

See fixed-fee pricing

The Short Answer

Horizon UK Tax Solutions is a Chartered Tax Adviser (CTA) practice in London handling the UK side of a life connected to Portugal: British people moving there, anyone in Portugal with UK rent, pensions or property, and people moving to the UK from Portugal. Three rules decide most outcomes. UK residence ends under the Statutory Residence Test, not on the day you fly. The new UK-Portugal treaty, in force since 29 December 2025, sends UK private and State pensions to Portugal once you are resident there, while government service pensions generally stay taxable in the UK. And NHR is closed to new arrivals: its successor, IFICI, excludes foreign pensions.

The traps are procedural. Split-year treatment is not automatic and is not triggered by the P85: it is claimed on the SA109, naming the right one of eight statutory cases. UK rent stays UK-taxable, and the Non-Resident Landlord Scheme can withhold tax unless HMRC approves gross payment. Sell UK residential property after leaving and the Non-Resident Capital Gains Tax report and payment are due within 60 days of completion. Return within roughly five years, having been UK resident in at least four of the seven tax years before leaving, and temporary non-residence rules can pull gains back into UK tax. We plan all of this before you fix a departure date.

Everything is handled remotely from London, with clients across six continents and year-round support. You deal directly with the founder, a CTA with over 10 years of experience including 7 at a Big Four firm. Fees are fixed and agreed in writing before any work starts: non-resident and expat tax returns are £550, personal returns start from £350 and complex returns from £750, and advisory work is quoted as a fixed fee upfront. Horizon leads on the UK and cross-border position and coordinates vetted local specialists wherever filing or advice has to happen in Portugal. Rated 5.0 on Google from 19 reviews. Start with a free 30-minute clarity call.

What We Do

Handled for you, end to end

  • Departure-year filings: form P85 where it applies, the Self Assessment return with SA109 residence pages, and the split-year claim under the right statutory case
  • Treaty claims to switch UK tax off your private and State pensions once you are Portuguese resident, supported by proof of Portuguese residence
  • Non-resident landlord returns and NRL1 applications so your UK rent is paid gross while you live in Portugal, with the profit reported through Self Assessment
  • 60-day Non-Resident Capital Gains Tax report when you sell UK residential property from Portugal, including rebasing to the 5 April 2015 value where it applies
  • Arrival-year planning for people moving to the UK from Portugal: the Statutory Residence Test, arrival split-year cases and the four-year FIG regime where you qualify
  • Exit planning around the five-year temporary non-residence window, coordinating a Portugal-qualified adviser on IFICI eligibility and Portuguese residence timing

Free In-Depth Guides

Guides for Portugal, if you want the detail first

Browse all guides

Country Guides

Moving to Portugal from the UK: the 2026/27 tax guide

Two things changed the picture for Britons moving to Portugal, and most older guides predate both. Here is how the move works now, on the UK side and the Portuguese one.

10 min read · Reviewed July 2026

Tax Decisions Compared

Portugal vs Dubai vs Thailand: tax for UK leavers 2026/27

Three favourite escape routes, three very different tax systems. We compare Portugal's IFICI regime, Dubai's zero personal tax and Thailand's remittance basis, plus the UK exit rules that follow you to all three.

9 min read · Reviewed July 2026

Tax Decisions Compared

Cyprus vs Portugal for UK Leavers: Which Tax Regime Wins?

Cyprus shelters dividends, interest and pensions through the non-dom regime and a 5% pension rate; Portugal's IFICI shelters salaries in listed professions. The right answer depends on what your income is, not where the sun is.

7 min read · Reviewed July 2026

Tax Decisions Compared

Spain's Beckham Law vs Portugal's IFICI for UK Leavers

Spain's Beckham Law caps tax on employment income at 24% for up to six years; Portugal's IFICI offers a 20% rate for ten years but only for listed professions. Neither helps retirees.

6 min read · Reviewed July 2026

Residency & the SRT

UK Statutory Residence Test (SRT) Explained

The Statutory Residence Test decides, tax year by tax year, whether you are UK resident. Days, ties and work patterns all count, and the answer drives everything else in your cross-border position.

13 min read · Reviewed July 2026

Residency & the SRT

Split-Year Treatment Explained: UK Tax in the Year You Move

Split-year treatment divides the tax year you move into a resident part and a non-resident part, so you are not taxed as a UK resident for the whole year of your move.

11 min read · Reviewed July 2026

Leaving the UK

Leaving the UK: a tax guide for people moving abroad

Leaving the UK does not automatically end your UK tax obligations. Getting the timing and the paperwork right is the difference between a clean break with a refund and an unexpected bill years later.

15 min read · Reviewed July 2026

Self Assessment

Expat Self Assessment: UK Tax Returns from Abroad

Living abroad does not switch off your UK tax return. This guide explains who still files, which pages non-residents need and the deadlines that apply from overseas.

13 min read · Reviewed July 2026

Foreign Income

Double Tax Relief UK: How to Avoid Being Taxed Twice

How double tax relief UK works in 2026/27: Foreign Tax Credit Relief, treaty and unilateral relief, the residence tie-breaker and how to claim on SA106.

8 min read · Reviewed June 2026

Quick answers for Portugal

Free Tax Tools

Run your own numbers, before we speak

See all free tools

UK Statutory Residence Test Calculator

Free UK Statutory Residence Test calculator. Enter your UK days, work pattern and ties for an instant indication of whether you are UK resident, with the deciding test and full reasoning.

Try it free

Relocation Comparison

Dubai vs Portugal vs stay: compare what changes when you leave the UK, income, CGT, wealth and inheritance tax, residency basis and treaty position, side by side. Indicative guidance.

Try it free

Global Tax Atlas

Compare the UK tax system with anywhere you might move. Pick a destination for an instant, plain-English read on income tax, capital gains, wealth and inheritance taxes, the basis of taxation, special regimes and the UK treaty position.

Try it free

Our Promise

Fixed fees, agreed in advance

We confirm your fee in writing before any work begins. You always know exactly what you are paying, billed as a fixed amount, never in arrears by the hour.

What this work costs

Non-resident and expat tax returns are £550 fixed. Personal tax returns start from £350 and complex returns from £750. Advisory and project work, such as residency planning and capital gains strategies, is quoted as a fixed fee agreed upfront, scoped to your situation. All fees are agreed before work begins.

See full fixed-fee pricing

Common Questions

Honest answers, before you book

More questions? Read our full FAQ.

Other Countries

UK tax advice, wherever you are moving

Ready When You Are

Start with a free clarity call

Book a free clarity call and we will talk through your situation and confirm a fixed price in writing: no obligation, no pressure, and no surprises.

Chat on WhatsApp

Prefer email? Reach us at jordanonraet-wells@horizonukts.com

WhatsApp