Buy-to-Let Mortgage Market Update: Summer 2026

Six waves of lender cuts have brought the BTL mortgage market to its most competitive point since 2023. The direction has shifted. But 5.42% is still 5.42%.

The Moneyfacts overall fixed BTL average fell to 5.42% on 1 July 2026, down from 5.53% a month earlier. The average two-year fixed rate with a 25% deposit now sits around 4.84%, versus 5.51% a year ago. Best-buy headline rates go lower still. None of this signals a return to 2021 conditions. It means the trajectory has changed, and for landlords remortgaging in H2 2026, that matters.

Here is where things stand, what July 30 MPC risk looks like today, and what to do about it.

Six Waves of Lender Cuts

Lenders have been cutting BTL rates in waves since the start of June. Waves 1 and 2 ran through the first two weeks of the month. More than a dozen lenders moved, including Halifax, Lloyds, Coventry Building Society, HSBC, Santander, The Mortgage Works, Molo, LendInvest, and Landbay. Wave 3 followed the June 18 MPC hold decision. Wave 4 came in the week of 26 June, with roughly 20 lenders cutting across the same period. Waves 5 and 6 carried the cuts into July.

The most recent wave, running 7 to 13 July, saw Molo lower its two-year best-buy from 2.95% to 2.85%. Keystone Property Finance cut HMO and multi-unit products by 15 basis points, with rates now from 3.34%. Accord Mortgages reduced five-year BTL products by 0.08% at up to 75% LTV. Paragon Bank expanded its BBR tracker range. Landbay, Shawbrook, Coventry for Intermediaries, YBS Commercial Mortgages, Kensington, and Dudley Building Society all repriced during the same period. Dudley cut its five-year 80% LTV product by 110 basis points, from 6.40% to 5.63%.

Throughout all six waves, the driver has been SWAP rate easing, not Bank of England base rate cuts. SWAP rates reflect the market's expectations for future borrowing costs. As those expectations shifted after the June 18 MPC decision, the post-MPC repricing in late June, and the US-Iran peace deal reducing the geopolitical risk premium, lenders passed savings through on the products where competitive pressure was sharpest.

Frequently Asked Questions

What is the average buy-to-let mortgage rate in July 2026?

The Moneyfacts overall fixed BTL average stood at 5.42% on 1 July 2026, down from 5.53% on 1 June. The average two-year BTL rate with a 25% deposit is around 4.84%, down from 5.51% a year ago. Best-buy headline rates sit lower but carry high fees and low LTV requirements that are not realistic for most landlords.

Will the Bank of England raise rates on 30 July 2026?

As of 13 July 2026, OIS markets price the hold probability at approximately 94 to 95%. Hike risk has dropped sharply from 21.5% one week ago to around 5 to 6%. June CPI, published 22 July, is the critical data point before the decision. Pill and Greene are expected to dissent again but cannot currently form a majority.

Should I lock in a buy-to-let mortgage rate now?

With hike risk on 30 July now around 5%, the environment is more benign than a week ago. But 5.42% is still materially above 2021 fixing levels. Model your cashflow at current rates, check your ICR position, and use a specialist BTL broker with whole-of-market access before deciding.

What is the ICR stress rate for buy-to-let mortgages in 2026?

The minimum ICR stress rate remains 5.5% under PRA Supervisory Statement SS13/16. Lenders assess affordability against this floor regardless of the product rate offered. Basic rate taxpayers and limited company borrowers need rental income covering 125% of interest at 5.5%. Higher rate personal landlords need 145%.