Four lenders raise mortgage rates across their ranges

Nationwide, TSB, Accord and Principality have each increased mortgage rates, with Nationwide's cheapest two-year fixed rate moving from 4.48% to 4.63% (Mortgage Solutions, 9 September 2026). Across the four lenders, the published increases run from 0.02 to 0.18 percentage points, and they cover residential and buy-to-let (BTL) ranges alike. The data shows repricing that is broad rather than isolated to one product type.

Which lenders have raised mortgage rates?

Nationwide moved on several ranges at once. Its new member moving products now start at 4.63% on a two-year fix at 60% LTV, with a £1,499 fee. LTV (loan to value) is the size of the loan as a share of the property value. Increases also run through the 75% to 95% LTV brackets. First-time buyer two-year fixes now sit at 4.82% at 75% LTV and 4.97% at 90% LTV. Remortgage two-year fixes reach 5.65% at 95% LTV, and five-year fixes reach 5.5% (Mortgage Solutions, 9 September 2026).

The same report puts Nationwide's switcher range from 4.66% at 60% LTV to 5.65% at 95% LTV. Switcher deals are for existing customers moving on to a new product with the same lender. Selected additional borrowing two-year trackers, where the rate moves in line with the Bank of England base rate, are priced at 4.69% at 90% LTV.

TSB was the bluntest of the four. It added 0.15% to all fixed-rate house purchase products and to all three-year fixed remortgage products (Mortgage Solutions, 9 September 2026). Accord raised BTL rates by 0.16% between 60% and 75% LTV and by 0.10% at 80% LTV. Principality raised two-, three- and five-year residential fixes by up to 0.18% at 65% LTV and by up to 0.13% at 75% LTV. Selected 80% to 90% LTV products rose by between 0.02% and 0.15%. Its five-year BTL fix at 60% LTV, carrying a £1,395 fee, rose by 0.10%. Our negotiation and finance coverage tracks how lender pricing decisions work through to borrowers.

How big are the increases?

Compared to the headline noise around any single product withdrawal, a spread of 0.02 to 0.18 percentage points is modest. But the direction is consistent, and that is the part worth watching. All four lenders appear in a single round-up, and every change reported was an increase.

The gap between the old and new pricing is easier to read in cash. On a £200,000 interest-only loan, 0.15 percentage points is £300 a year of extra interest (Property Filter calculation). That is the size of Nationwide's move on its cheapest two-year fix and of TSB's flat uplift on fixed-rate purchase deals. Our free property calculators let you apply the same arithmetic to your own figures.

Aaron Strutt of Trinity Financial called Nationwide's move "frustrating" (Mortgage Solutions, 9 September 2026). The rate was, he said, "one of the standout best buy rates and popular with borrowers looking for competitively priced shorter-term deals". The underlying picture is a market where the cheapest advertised rate does not stay cheapest for long.

What this means for buy-to-let borrowers

Two of the four moves landed squarely on landlords. Accord's increase of up to 0.16% and Principality's 0.10% rise on its five-year 60% LTV BTL fix both change the rate a lender feeds into its affordability sums. Running the new numbers through our free buy-to-let stress test calculator shows whether the rental income still clears the interest coverage ratio. That ratio is the rental cover lenders require, typically 125% or 145% of the mortgage payment.

For anyone remortgaging or buying now, the practical question is sequencing rather than panic. Lenders reprice at different times, so a product available this week may not carry the same rate next week. Our property investment strategies coverage sets out how rate movements feed into hold-versus-refinance decisions across a portfolio.

Key takeaways

• Four lenders - Nationwide, TSB, Accord and Principality - raised mortgage rates in the same 9 September 2026 pricing round-up.

• Nationwide's cheapest two-year fix rose from 4.48% to 4.63%, a move of 0.15 percentage points.

• TSB applied a flat 0.15% increase to all fixed-rate house purchase products and all three-year fixed remortgage products.

• Accord raised buy-to-let rates by up to 0.16%, and Principality raised its five-year 60% LTV buy-to-let fix by 0.10%.

• The published increases across all four lenders span 0.02 to 0.18 percentage points, all in the same direction.