Mortgages
⏱ 4 min read
📅 Updated May 2026
Buy-to-Let Mortgage UK 2026: Rates, Requirements & Tax Guide
Buy-to-let mortgage UK 2026 — rates from 4.29%, 25% deposit requirement, and Section 24 tax rules.
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Part of our UK mortgage rates guide. See the main pillar for the full lender comparison, FRN-verified best buys by LTV band and worked-example payments: Best Mortgage Rates UK 2026.
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⚡ Editor's Verdict — Stress-Test at 7–8% Before Buying
Buy-to-let mortgage rates have risen significantly since 2022. Best 2-year fix rates start from around 4.5% (75% LTV) in April 2026. Rental yields need to cover mortgage costs plus void periods, maintenance, and tax. Always stress-test at 7–8% interest rate. |
A buy-to-let mortgage is a mortgage specifically for properties you intend to rent out rather than live in. Lenders typically require a larger deposit (25%), charge higher rates than residential mortgages, and assess affordability based on rental income rather than personal income. Buy-to-Let Mortgage Rates UK April 2026| Type | Rate | Fee | LTV | Lender |
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| 2-year fix | 4.49% | £999 | 75% | TMW (The Mortgage Works) | | 2-year fix | 4.55% | £999 | 75% | BM Solutions | | 5-year fix | 4.29% | £999 | 75% | TMW | | 5-year fix | 4.35% | £1,495 | 75% | Barclays | | 2-year fix (higher LTV) | 5.10% | £999 | 80% | Precise Mortgages | | Tracker | 5.24% | £0 | 75% | Fleet Mortgages |
Buy-to-Let Mortgage Requirements UK 2026| Requirement | Typical Criteria |
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| Minimum deposit | 25% (75% LTV) — some lenders accept 20% | | Rental coverage | Rental income must cover 125–145% of monthly mortgage payment | | Minimum income | £25,000+/year personal income (most lenders) | | Credit history | Clean credit history required — CCJs and defaults problematic | | Maximum age | Usually 70–75 at end of mortgage term | | Property type | Standard construction — flats above commercial premises often restricted |
| ⚠️ The rental stress test requires rental income to cover 125–145% of the mortgage payment at a stressed rate (typically 5.5–6%). On a £200,000 mortgage at 5.5%, that means needing £916–£1,054/month in rent minimum. |
Buy-to-Let Tax UK 2026| Tax | Rate | Notes |
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| Income Tax on rental profit | 20–45% (your marginal rate) | After allowable expenses | | Mortgage interest relief | Basic rate (20%) tax credit only | No longer full deduction for higher-rate taxpayers | | Capital Gains Tax on sale | 18% (basic rate) / 24% (higher rate) | After annual CGT allowance (£3,000 in 2026) | | Stamp Duty surcharge | +5% on standard rates | On all buy-to-let and second home purchases | | Section 24 mortgage relief cap | 20% tax credit only | Major change since 2020 — affects higher-rate taxpayers |
What is a buy-to-let mortgage?A buy-to-let mortgage is designed for properties you rent to tenants rather than live in. Lenders typically require a 25% deposit, charge higher rates than residential mortgages, and assess affordability based on projected rental income covering 125–145% of mortgage payments. What are the best buy-to-let mortgage rates in the UK?As of April 2026, the best 5-year fixed buy-to-let rates start from around 4.29% (75% LTV) and the best 2-year fixed rates from around 4.49%. Always use a specialist buy-to-let mortgage broker for the full market. Is buy-to-let still worth it in the UK in 2026?Buy-to-let profitability has been squeezed by higher mortgage rates, increased stamp duty (5% surcharge), removal of full mortgage interest tax relief, and increased regulation. Many landlords with mortgages are now making losses. Cash buyers and those with low LTV mortgages fare better. What is Section 24 mortgage interest relief?Section 24 limits mortgage interest tax relief for buy-to-let landlords to the basic rate (20%) regardless of your income tax rate. Higher-rate taxpayers who previously deducted mortgage interest at 40% now only get a 20% credit — significantly increasing their tax bill. Sources: The Mortgage Works — BTL rates April 2026 · HMRC buy-to-let tax rules · Stamp Duty Land Tax — GOV.UK · NRLA landlord data 2026 |
Part of our complete guide: UK Mortgage Rates April 2026 - Current Rates & Guide → Find a whole-of-market mortgage broker →
Editorial Disclaimer
The content on Kaeltripton.com is for informational and educational purposes only and does not constitute financial, investment, tax, legal or regulatory advice. Kaeltripton.com is not authorised or regulated by the Financial Conduct Authority (FCA) and is not a financial adviser, mortgage broker, insurance intermediary or investment firm. Nothing on this site should be construed as a personal recommendation. Rates, figures and product details are indicative only, subject to change without notice, and should always be verified directly with the relevant provider, HMRC, the FCA register, the Bank of England, Ofgem or other appropriate authority before any financial decision is made. Past performance is not a reliable indicator of future results. If you require regulated financial advice, please consult a qualified adviser authorised by the FCA.
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Chandraketu Tripathi
Finance Editor · Kaeltripton.com
Chandraketu (CK) Tripathi, founder and lead editor of Kael Tripton. 22 years in finance and marketing across 23 markets. Writes on UK personal finance, tax, mortgages, insurance, energy, and investing. Sources: HMRC, FCA, Ofgem, BoE, ONS.
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