UK mortgage rates have posted their first week-on-week fall since 27 February, with two- and five-year swap rates (the benchmark rates banks use to price fixed-rate mortgages) slipping below 4% for the first time in a month, according to PropertyWire (20 April 2026). The driver: easing geopolitical tensions and softer global inflation data.
What Happened to Swap Rates
Swap rates had climbed sharply in the weeks following the outbreak of Middle East conflict in late February, pushing fixed mortgage costs higher across the board. Major lenders responded by raising rates in step. By mid-April 2026, however, the mood had shifted.
A ceasefire and signs of cooling inflation gave lenders room to move. HSBC cut rates by up to 34bps (basis points, where 100bps equals 1%), Lloyds Bank by up to 35bps, and Santander by up to 28bps, according to data cited by Mortgage Finance Gazette (17 April 2026). Atom Bank, Halifax, TSB, and The Co-operative Bank also reduced rates during the week.
The two-year swap rate, which had been sitting above 4% throughout March and into April, moved back below that threshold. The five-year swap followed. These are not product rates - they are wholesale benchmarks. Product rates lag by days or weeks as lenders reprice their ranges.
What It Means for Your Monthly Payment
Run the numbers on a typical BTL scenario. A landlord with a £150,000 interest-only mortgage at 75% LTV (loan-to-value) on a £200,000 property, and a rate of 5.3%, pays £662.50 per month (£150,000 × 5.3% ÷ 12). If that rate falls by 20bps to 5.1% - a conservative estimate relative to the lender cuts reported - the monthly cost drops to £637.50. That is a £25 per month saving, or £300 per year.
A 35bps reduction, in line with the larger lender cuts, would take the rate from 5.3% to 4.95%. Monthly payment: £618.75. Saving: £43.75 per month, or £525 per year on a single mortgage.
These figures use illustrative BTL rates consistent with published market data. Actual savings depend on your lender, your LTV, and when your deal expires.
Three-year fixes at 95% LTV fell by 13bps to 5.98% and at 85% LTV dropped 9bps to 5.53%, according to data cited by Mortgage Finance Gazette (17 April 2026).
Is This a Turning Point?
Not confirmed yet. Experts quoted in the market coverage were clear: it is too early to call this a sustained trend. Swap rates remain well above where they were before the conflict began. The average one-year swap rose 0.26% and the five-year rose 0.22% since the conflict started, per data cited in market reporting.
What has changed is the direction of travel - even briefly. For landlords mid-application or approaching a remortgage window, that matters. Lender criteria (the individual conditions each lender applies to assess affordability) and stress test requirements (minimum rental cover ratios) have not changed. But the rate environment has, at least for now.
You may wish to consider speaking to your broker if your fixed deal expires within the next three to six months. Timing a remortgage is rarely perfect, but a window where rates are falling is worth reviewing.
