If the Bank of England raises the base rate this week, homeowners on tracker and standard variable rate (SVR) mortgages could see their monthly payments increase by around £37.50, or approximately £450 over a year, based on a typical mortgage balance. Those on fixed-rate deals remain protected during their deal period but may face higher rates when they remortgage. The actual impact depends on your mortgage type, outstanding balance, and whether your lender passes on the full increase.

Why the Bank of England May Raise Rates

The Bank of England’s Monetary Policy Committee meets regularly to set the base rate, the interest rate that influences what banks and building societies charge borrowers. According to the Bank of England, decisions are based on inflation targets, economic growth, and employment levels. When inflation rises above the 2 per cent target, the Bank may increase rates to cool spending and borrowing. Any base rate change this week would reflect current economic conditions and the need to balance growth with price stability.

Who Is Affected Immediately

Tracker mortgages are directly linked to the Bank of England base rate, usually at a set margin above it (for example, base rate plus 1 per cent). If the base rate rises by 0.25 percentage points, a tracker mortgage rate rises by the same amount, and your monthly payment increases within days or weeks.

Standard variable rate (SVR) mortgages are set by individual lenders and are not contractually tied to the base rate, but lenders typically pass on base rate increases to SVR customers. Most borrowers revert to their lender’s SVR when a fixed or discounted deal ends, so if you are between deals, you are likely affected.

Fixed-rate mortgages are unaffected during the deal period. Your rate and monthly payment stay the same until the fixed term ends. However, if your fixed rate is ending soon and you have not yet remortgaged, new deals available after a rate rise may carry higher rates.

What £450 a Year Means in Practice

The £450 annual increase is based on a typical residential mortgage balance of around £200,000 with a 0.25 percentage point rate rise. For a mortgage of this size, a quarter-point increase adds roughly £37.50 to the monthly payment, totalling £450 over 12 months. If you owe more, the impact is larger: a £300,000 mortgage would see an increase closer to £56 a month, or £672 a year. If you owe less, the impact is smaller.

These figures assume the lender passes on the full base rate increase. Some lenders may delay the change or absorb part of it, though this is uncommon for tracker mortgages, which adjust automatically.

Read also: What a Bank of England Rate Pause May Mean for UK Mortgage Interest Rates

What to Do Next

Check your mortgage type. Your annual mortgage statement or online account will confirm whether you are on a fixed rate, tracker, discount, or SVR. If you are unsure, contact your lender.

If you are on a tracker or SVR, budget for a potential monthly increase. Review your household finances to ensure you can absorb the higher payment, and consider whether remortgaging to a fixed rate might offer stability and potentially save money if further rate rises are expected.

If your fixed rate is ending soon, act quickly. Rates on new fixed deals may rise after a base rate increase, so securing a new rate now (you can usually apply up to six months before your current deal ends) may lock in a lower rate. According to MoneyHelper, many borrowers benefit from remortgaging before reverting to their lender’s SVR.

Speak to an FCA-authorised mortgage adviser. They can compare deals across the market, explain early repayment charges if you are still in a deal period, and help you decide whether to fix, track, or wait.

Final Thoughts

A Bank of England rate rise affects different mortgage holders in different ways. If you are on a tracker or SVR, prepare for an immediate increase. If you are on a fixed rate, you have breathing room but should plan ahead for when your deal ends. Mortgage markets move quickly, and acting early can save you hundreds of pounds a year.

This article provides general educational information about UK mortgage costs and interest rates. It is not regulated mortgage advice, nor personalised financial or lending advice. Refisage is not authorised by the Financial Conduct Authority. Rates, fees, and eligibility vary by lender, product, and your personal circumstances. Always speak to an FCA-authorised mortgage adviser before making any mortgage decision. Your home may be repossessed if you do not keep up repayments on your mortgage. Information is current as of July 2026; the base rate and mortgage rates change frequently, so verify current terms with an FCA-authorised adviser or lender before deciding.