Rent a Room Scheme UK: Earn Up to £7,500 Tax-Free From Your Spare Room

The Rent a Room Scheme provides a tax-free allowance of £7,500 per year for income from letting a furnished room in your main home. If your rental income is below £7,500, you don't need to do anything — it's automatically tax-free and you don't even need to declare it. If it exceeds £7,500, you can either deduct the £7,500 allowance (paying tax on the excess) or calculate actual expenses instead (whichever is more beneficial). The room must be furnished and in your main residence — a separate self-contained flat doesn't qualify.

SpareRoom is the UK's largest room-rental platform, with millions of users. List your room with clear photos, an accurate description, and your house rules. Be specific about what's included (bills, WiFi, kitchen access, parking) and what isn't. Meet potential lodgers in person before agreeing — trust your instincts. Consider professionals or postgraduate students, who tend to be reliable and employed. Set a trial period of 1–3 months with a rolling notice period, so either party can end the arrangement easily if it's not working.

Research comparable room rents in your area on SpareRoom. Factor in what you're including: a room with en-suite bathroom, all bills included, and fast WiFi commands a premium over a basic room with shared facilities. In 2026, typical room rents range from £400–£500 per month outside London, £500–£700 in outer London, and £700–£900+ in central London. Price competitively — a room that's £50 below market rate rents faster and attracts better tenants. To stay within the £7,500 tax-free threshold, keep rent at or below £625 per month.

If you earn £500 per month from your spare room, that's £6,000 per year tax-free. Redirect this directly into a savings goal using SYM — in two years, that's a £12,000 deposit contribution or a fully funded emergency fund. If your room income covers your mortgage payment, you're effectively living mortgage-free while building equity. Some homeowners use lodger income to accelerate mortgage overpayments, potentially saving tens of thousands in interest over the life of their loan.