TSB mortgage rates today, against the whole market

How TSB mortgage rates work

TSB prices its mortgages by loan to value band and fix length, with separate ranges for new customers and existing customers switching deals, and TSB mortgage rates can change several times a month. The best TSB deal at 60% is not the best at 85%, so the table above shows each band side by side with the best rate any lender is publishing.

TSB rates for existing customers

On Theo’s data, TSB’s published product transfer rates sat about 0.1 points above the best open market rate at most bands on 21 October 2026, with a £1,495 fee up to 75% and £995 above it. Worth comparing before you accept, especially at 90% and 95%, where the gap was wider. Your own offer depends on your circumstances, so log in to TSB to see it. See TSB product transfers.

Asking your lender, or checking with Theo

When you log in to your lender, you see your lender’s deals. That is all it can show you. Theo shows where those deals sit in the whole market: the best rate any lender is publishing for your loan to value band today, the fees beside every rate, and the standard variable rate you would roll onto if you did nothing. Your lender tells you what it will offer. Theo tells you whether it is a good offer.

Theo is information, not advice, and it is not affiliated with any lender. When you are ready to act, an FCA-authorised adviser can check your options across the market.

TSB rates and fees together

TSB’s product transfer fee on Theo’s data was £1,495 up to 75% and £995 above it, with no fee options at 95%. On a £150,000 loan, a £1,495 fee adds about 0.5 points a year over a 2 year deal, which can outweigh a small rate advantage. The table shows each rate with its fee, so you can weigh both.

If your TSB deal ends and you do nothing

If your TSB deal ends without a new one, you move onto TSB’s standard variable rate, usually well above any fixed deal. Theo shows TSB’s current rate beside the table when it is in the data, and alerts you 12, 9, 6, 3, 2 and 1 months before your fix ends. See standard variable rates.

Where the figures come from

Theo checks rates from 100+ UK lenders every morning through mortgage sourcing data. Rates change and deals can be withdrawn at short notice, so the figures are a guide, not an offer. Theo is not affiliated with TSB.