Common tax mistakes
The recurring errors that cost overseas investors money — from forgetting surcharges to missing the 60-day CGT clock.
Who it applies to
Every overseas UK property investor.
How it affects your return
Most tax pain is avoidable. The frequent, expensive mistakes are: forgetting the 5% + 2% SDLT surcharges when budgeting; assuming non-residents escape UK income tax, CGT or IHT; deducting full mortgage interest despite Section 24; not filing NRL1 and losing 20% of rent to withholding; missing the 60-day CGT deadline; and assuming an offshore company shelters a UK home from IHT.
Common mistakes
- Under-budgeting SDLT by ignoring the surcharges.
- Believing non-residents don't pay UK income tax, CGT or IHT.
- Claiming full mortgage interest as an expense (Section 24).
- Missing NRL1, the 60-day CGT report, or the ATED return.
Investor action checklist
- Model all-in purchase costs including both SDLT surcharges.
- Assume UK tax applies to income, gains and the estate.
- Use the Section 24 credit, file NRL1, and diarise every deadline.
- Take professional advice on structuring before you buy.
Disclaimer. This page is for general education only and is not tax, legal, mortgage, or investment advice. UK tax rules change and depend on your personal circumstances. Always consult a qualified UK tax adviser before making a decision.
Disclaimer. The information on Brick.sg is for general education and market research only. It is not financial, investment, tax, mortgage, or legal advice. Property investments involve risk, and returns are not guaranteed. Always seek independent professional advice before buying UK property.