Personal Tax & Self Assessment
Self Assessment, handled end to end
Fixed-fee UK Self Assessment tax returns for individuals, with planning to claim every allowance and relief you are due.
The Short Answer
Living abroad does not switch off your UK tax return. If you still have UK income or gains, or HMRC has issued you a notice to file, you must complete a Self Assessment return even though you are non-resident.
The complication for expats is the SA109 residence page. It is the form that tells HMRC you are non-resident and claims split-year treatment or the foreign income and gains (FIG) regime, and it cannot be filed through HMRC’s free online service. That single page is why most non-residents use an agent.
Whether you are employed, self-employed, or earning rental income, we prepare and submit your return accurately, with all allowable expenses claimed and every fee agreed before work begins.
What We Do
Handled for you, end to end
- Accurate preparation and submission of your UK Self Assessment, whether you are employed, self-employed, or earning rental income
- Cross-border returns with the SA109 residence pages, split-year claims and correct reporting of overseas income
- Multiple income streams, investments, trusts, and complex structures, with a detailed, tailored approach and proactive tax planning
- A document checklist tailored to your circumstances to make the process as simple as possible
- A full handover from your current accountant, including a review of historical filings for missed opportunities or errors
- Year-round support and proactive prompts ahead of deadlines, not once-a-year conversations
Free In-Depth Guides
Read the guides first, if you like
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.
10 min read · Reviewed June 2026
Leaving the UK
P85, NT Tax Code and Your Leaving-Year UK Refund
How P85 leaving the UK works in 2026/27: when to file P85 or Self Assessment, claiming your leaving-year refund, the NT tax code, NRL1 and how the money reaches you.
9 min read · Reviewed June 2026
Non-Resident Landlords
Non-Resident Landlord Tax: UK Rental Income Abroad
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.
12 min read · Reviewed June 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
Capital Gains Tax
Crypto Tax for Expats and People Leaving the UK
How UK crypto tax works for expats and people leaving the UK: CGT on disposals, the temporary non-residence claw-back, income tax on staking, and CARF reporting from 2026.
10 min read · Reviewed June 2026
Choosing an Adviser
How to Choose a UK Expat Tax Adviser (2026)
An objective 2026 guide to choosing a UK expat tax adviser: the credentials that matter, how UK tax advice is (and is not) regulated, how to verify an adviser, how fees should work, the questions to ask, and the red flags to avoid.
9 min read · Reviewed June 2026
Free Tax Tools
Run your own numbers, before we speak
UK Income Tax & Take-Home Calculator
Work out your UK income tax, National Insurance and take-home pay, with a Scottish-taxpayer option for Scotland's separate income-tax bands. Indicative, instant, free.
Try it freeAccounting Fee Estimator
See an indicative fee for working with Horizon UK Tax Solutions. Answer a couple of questions about your situation for a starting figure. Every fee is fixed and agreed upfront, with no surprise bills.
Try it freeUK 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 freeOur 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 a return costs
Personal tax returns start from £350, non-resident and expat returns from £550, and complex returns from £750. All fees are agreed before work begins.
See full fixed-fee pricingCommon 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.
Prefer email? Reach us at jordanonraet-wells@horizonukts.com