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HorizonUK Tax Solutions

A Chartered Tax Adviser for the UK side of life in Spain

UK tax returns, residency and treaty work for people moving to Spain, living there with UK income, or coming to the UK from Spain. Fixed fees, agreed first.

See fixed-fee pricing

The Short Answer

Horizon UK Tax Solutions is a Chartered Tax Adviser (CTA) practice in London that handles the UK tax side for people connected to Spain: British people moving there, people already living in Spain with UK income, property or pensions, and people moving to the UK from Spain. The UK does not let go when you board the plane. Your residence is decided by the Statutory Residence Test, a mid-year move usually needs split-year treatment, rent from a UK property stays UK-taxable however long you live in Spain, and the UK-Spain treaty decides which country taxes your pension.

The traps are about dates. Sell UK residential property while non-resident and the NRCGT return is due within 60 days of completion, even when no tax is due. Return to the UK after five years or less away, if UK resident in at least four of the seven tax years before leaving, and gains realised abroad can be pulled back into UK tax. The Beckham Law has its own clock, and while in it you are not treated as treaty resident, which can matter for UK-source income. We sequence the leaving date, split-year case and treaty claims in the right order, and coordinate a Spanish adviser for Spanish filings.

Everything is handled remotely, from London, with year-round support and direct access to the adviser: 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 fixed. Personal tax returns start from £350 and complex returns from £750, and advisory work such as a departure plan or a pension treaty claim is quoted as a fixed fee upfront. Never an hourly rate. The practice is rated 5.0 on Google from 19 reviews, with clients across six continents. Start with the free 30-minute clarity call.

What We Do

Handled for you, end to end

  • Departure-year planning and the departure-year tax return: SRT timing, the split-year claim, the P85 and the SA109 pages HMRC's free online service cannot file
  • NRL1 applications so your UK rent is paid gross, and the non-resident landlord return that still reports the profit to HMRC
  • CGT on UK residential property sold from Spain, including the NRCGT return due within 60 days of completion even when no tax is due
  • The UK-Spain treaty position on your pensions: Article 17 for private and state pensions, Article 18 for government-service pensions, and the DT-Spain Individual claim
  • Arrival-year planning for people moving to the UK from Spain: the arriver day count, split-year Cases 4 to 8 and the SA109 claim
  • Coordination with a vetted Spanish adviser for the Beckham Law application and Spanish filings, while Horizon leads on the UK and cross-border position

Free In-Depth Guides

Guides for Spain, if you want the detail first

Browse all guides

Country Guides

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

Moving to Spain from the UK is two tax jobs at once: leaving the UK system cleanly and entering the Spanish one with your eyes open.

12 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

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

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

Non-Resident Landlords

NRL1 Form, NRL2 and Non-Resident Landlord Tax on UK Rent

UK rental income stays taxable in the UK however far away you live. What changes when you move abroad is how the tax is collected: the Non-Resident Landlord Scheme, form NRL1, your allowances and your filing route.

16 min read · Reviewed September 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

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

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.

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.

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

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