Approximately 1.6 million UK fixed-rate mortgages are set to mature during 2026, with a significant number concentrated in the second and third quarters. Many of these deals were secured in 2021 and early 2022 at rates below 2 per cent. These households now face remortgaging onto rates closer to 4.5 per cent for a new fixed deal, or defaulting onto a Standard Variable Rate (SVR) averaging 7.13 per cent. The Bank of England Bank Rate, currently held at 3.75 per cent by the Monetary Policy Committee, is the primary driver behind these market changes, directly influencing variable mortgage costs and underpinning fixed-rate pricing.

What is the Bank Rate and why does it impact UK mortgages?

The Bank of England Bank Rate is the interest rate the Bank of England pays commercial banks on the reserves they hold. This rate is the principal lever the Monetary Policy Committee (MPC) uses to control inflation across the United Kingdom. On 29 April 2026, the MPC voted by a majority of 8 to 1 to hold the Bank Rate at 3.75 per cent, though one member preferred a 0.25 percentage point increase to 4 per cent. This decision reflects ongoing economic considerations.

The UK Consumer Prices Index inflation was 3.3 per cent in the 12 months to March 2026, exceeding the Bank of England's 2 per cent target. April 2026 commentary from the Bank indicates that further inflation is likely, driven by Middle East energy-price effects feeding into household energy bills and business input costs. The next Monetary Policy Committee decision is scheduled for the meeting ending 17 June 2026, with minutes published on 18 June 2026. Future Bank Rate adjustments are directly linked to the MPC's assessment of inflation pressures and economic stability, which in turn influences the broader cost of borrowing for lenders and, subsequently, for mortgage holders.

How will 1.6 million UK mortgage holders be affected in 2026?

UK Finance projects that approximately 1.6 million fixed-rate UK mortgages will reach maturity during 2026. The majority, around 58 per cent of the year's maturities, are concentrated in the second and third quarters. Many of these mortgages were originated in 2021 and early 2022, a period when 5-year fixed rates below 2 per cent were widely available across the market.

Households whose fixed deals expire in 2026 face a significant increase in their mortgage costs. A typical remortgaging household is rolling from a sub-2 per cent fixed rate onto a new deal. This could be a competitive 5-year fixed rate close to 4.5 per cent. Alternatively, if no action is taken, the borrower will default onto their lender's Standard Variable Rate (SVR), which averaged 7.13 per cent in May 2026. This shift creates a substantial financial impact.

On a 200,000 pound UK mortgage, the difference between a 4.5 per cent fixed rate and a 7.13 per cent SVR is approximately 290 pounds per month. This equates to nearly 3,500 pounds per year. A 3,500 pound annual increase makes the Bank Rate's impact and acting proactively.

Which UK mortgage types respond to Bank Rate changes?

The way a mortgage responds to Bank Rate changes depends entirely on its specific product type. It is crucial for borrowers to understand these distinctions as their fixed-rate deals mature.

Fixed-rate mortgages vs. variable rates

Fixed-rate mortgages do not change their interest rate during the agreed fixed period, regardless of any Bank Rate adjustments. The borrower's rate remains constant until the end of the fixed term. At this point, the mortgage only re-prices when the borrower either remortgages, switches to a new product with their existing lender, or transitions onto the lender's SVR.

Tracker mortgages move directly with the Bank Rate. These products are typically priced at a fixed margin above the Bank Rate for a contracted period, for example, Bank Rate plus 0.99 per cent. If the Bank Rate increases, a tracker mortgage rate will rise by the same margin, and vice versa.

Standard Variable Rate (SVR) mortgages are set at the lender's discretion. Lenders are not contractually required to match Bank Rate moves exactly. Typically, SVRs tend to rise quickly when the Bank Rate increases but may adjust downwards more slowly when the Bank Rate falls. The average SVR on UK mortgages in May 2026 was 7.13 per cent.

Discount variable rate mortgages offer a discount on the lender's SVR for a specific period. This means the borrower's interest rate moves in line with the lender's SVR, but with the contracted discount applied. Since the underlying SVR moves at the lender's discretion, so too does the discount variable rate.

Lifetime tracker mortgages follow the Bank Rate at a fixed margin for the entire term of the loan. These products have no fixed end date for the tracking element, providing consistent alignment with Bank Rate movements over the full mortgage duration.

What steps should UK mortgage holders take before their deal expires?

For the 1.6 million households whose fixed-rate mortgages mature in 2026, proactive engagement is essential. UK mortgage lenders are required by Financial Conduct Authority (FCA) rules to contact borrowers at least 4 to 6 months before a fixed-rate mortgage matures. This communication informs borrowers of their available options.

A borrower may apply to remortgage as early as 6 months before the existing fixed-rate deal ends. The new deal does not commence until the existing fixed term matures. This timing means there is no early repayment charge if the new arrangement is aligned correctly with the end date of the current fixed rate. Taking action well in advance allows time to compare options and secure a new deal without penalty.

Approximately 79 per cent of UK borrowers whose fixed-rate mortgages mature complete a product transfer with their existing lender. However, it is always advisable to explore the wider market to ensure the most competitive rate is secured.

If a UK borrower takes no action when a fixed-rate mortgage matures, the lender by default places the borrower on their SVR. This is typically the most expensive rate available on that lender's book, averaging 7.13 per cent in May 2026. Falling onto the SVR can result in a sudden and significant increase in monthly payments, as highlighted by the 290 pounds per month difference on a 200,000 pound mortgage compared to a competitive fixed rate.

What should you do next?

The Bank of England Bank Rate remains the critical factor influencing UK mortgage payments, particularly for those whose fixed deals expire in 2026. Review your mortgage statements and note your fixed-rate maturity date. Engage with your current lender or a mortgage broker at least 6 months before your fixed deal ends to explore product transfer options and wider market deals. Prioritise securing a new deal to avoid automatically transitioning onto the higher Standard Variable Rate.