How to Pay Less Tax as a Landlord: 12 Legal Ways (2026/27)

1. Claim every allowable expense

This is the foundation, and the most under-used. Every pound of genuine, wholly-and-exclusively business cost comes off your rental income before tax — worth 20p to a basic-rate landlord and 40p to a higher-rate one. Landlords routinely miss accountancy and software fees, letting-agent commission, insurance, ground rent and service charges, and a fair proportion of phone and home-office use. Our complete allowable expenses list walks through the lot.

2. Use the £1,000 property income allowance

If your rental costs are low, you can deduct a flat £1,000 property allowance instead of your actual expenses — and if your gross rents are under £1,000 you may not need to report them at all. It only helps when £1,000 beats your real expenses, so compare both. The property allowance and Rent a Room guide covers when each one wins.

3. Use the Rent a Room scheme

Letting a furnished room in your own home? The Rent a Room scheme lets you earn up to £7,500 a year tax-free (£3,750 each if shared). For live-in landlords and lodger arrangements this is one of the most generous reliefs going, and it needs no expense tracking up to the threshold.

4. Split income with a lower-earning spouse

If one partner pays 40% tax and the other has unused allowance or basic-rate band, the default 50/50 split on jointly held property wastes the cheaper bands. Married couples and civil partners can hold the property as tenants in common in unequal shares, sign a declaration of trust, and file Form 17 so the income is taxed on the real split. This single move can save thousands — our Form 17 guide has a worked example.

5. Pay pension contributions to extend your basic-rate band

A personal pension contribution extends your basic-rate band by the grossed-up amount, which can pull rental profit that would have been taxed at 40% back down to 20% — and it also helps reclaim personal allowance if your income is over £100,000. You get tax relief on the contribution and you keep the money (in your pension). For higher-rate landlords this is often the single most efficient lever.

6. Get the Section 24 finance-cost credit right

You can no longer deduct mortgage interest in full, but you do get a 20% basic-rate tax reducer on residential finance costs. Missing or mis-claiming this is a common, costly error. Make sure all qualifying finance costs — mortgage interest, and the interest element of certain loans and fees — are captured. See how the restriction actually bites in our Section 24 worked examples.

7. Claim the replacement of domestic items relief

When you replace a sofa, bed, fridge, carpet or similar furnishing in a let property, you can claim the cost of the replacement (on a like-for-like basis, less any proceeds from the old item). It is not available on the very first purchase, but for ongoing replacements it is a steady, often-forgotten deduction.

8. Time repairs and big costs into higher-income years

A repair gives more relief in a year when your income is high — and under the default cash basis, the deduction lands when you pay. If you know a year will push you into the higher band, bringing forward a deductible repair (a genuine repair, not an improvement) can save tax at 40% rather than 20%. Our cash basis vs accruals guide explains the timing.

9. Know the repairs-vs-improvements line

Repairs (restoring something to its original condition) are deductible against income now; improvements (upgrading or adding something new) are capital and only reduce your gain when you sell. Classifying a cost correctly — and where there is a genuine repair element, claiming it — keeps relief flowing in the right place. Getting this wrong is a frequent trigger for HMRC enquiries, so document it.

10. Consider whether a limited company fits

A company deducts mortgage interest in full (no Section 24) and pays Corporation Tax, which can suit higher-rate landlords growing a portfolio. But profits are taxed again on extraction, there are running costs, and incorporating an existing property can trigger SDLT and CGT — sometimes softened by incorporation relief. It is a model-it-carefully decision, not a default. Start with our incorporation relief guide.

11. Plan around Capital Gains Tax before you sell

When you eventually sell, reliefs and timing matter as much as they do on income. Use both spouses’ annual exempt amounts and CGT bands, claim Private Residence Relief for any period it was your main home, and remember the 60-day reporting and payment deadline. Our guide to reducing CGT on a property sale and the CGT calculator cover the detail.

12. Keep clean digital records (and go MTD-ready)

The dullest tip is the one that unlocks the other eleven: if your records are a shoebox, you under-claim and over-pay. Clean digital records mean every expense is captured, every finance cost is relieved, and your figures are defensible if HMRC asks. From April 2026, Making Tax Digital makes digital records mandatory for landlords over the threshold anyway — so the tool that keeps you compliant also makes sure you claim everything. Check whether MTD applies to you and run your figures through the landlord tax calculator.

Frequently asked questions