Fixed Mortgage Rates Post Biggest Daily Jump Since Spring, Even as June Inflation Cools to a 15-Month Low

UK borrowers faced a jolt in the third week of July as average fixed mortgage rates recorded their sharpest daily rise since the spring, unwinding a run of recent cuts. The move came only a day before official data confirmed that headline inflation had cooled to its lowest level in over a year, leaving the market caught between competing signals ahead of the Bank of England's closely watched decision on 30 July. ## A sudden reversal after a fortnight of cuts

After several weeks of easing prices, lenders changed course sharply in mid-July. According to Moneyfacts data, the typical two-year fixed-rate residential mortgage and the five-year fixed rate both saw their largest daily increases in months.

The catalyst was a renewed rise in wholesale funding costs, which feed directly into the pricing of fixed-rate deals. Several major lenders repriced within days of one another, ending a competitive stretch that had seen rates drift lower through late June and early July.

• • The average two-year fixed residential mortgage climbed to 5.54% on 21 July, up 0.04 points from 5.50% the day before, the biggest daily rise since 2 April.
• • The average five-year fixed rate rose 0.05 points to 5.57%, its largest daily increase since 31 March.
• • Five major lenders, including Nationwide, NatWest, Barclays, Virgin Money and Coventry, raised fixed rates as swap rates moved back above 4%.

The average two-year fixed-rate residential mortgage on the market on Tuesday morning was 5.54%, up by 0.04 percentage points from 5.50% on Monday.

Moneyfacts, reported by Yahoo Finance, 2026

Why swap rates matter

Fixed-rate mortgages are priced primarily off swap rates, which reflect market expectations for the path of interest rates rather than the Bank of England base rate directly. When those expectations shift, lenders adjust their fixed pricing quickly, often ahead of any move in Bank Rate itself.

Analysts attributed the July increase to renewed hostilities in the Middle East, which lifted oil prices and stoked fresh inflation concerns. That pushed swap rates back above 4% after they had briefly dipped below that level earlier in the month.

Inflation eases to a 15-month low

Set against the rate rises, the inflation picture actually improved. The Office for National Statistics reported that Consumer Prices Index inflation eased to 2.6% in the year to June, its lowest reading since March 2025 and below the roughly 2.7% many economists had expected.

The ONS attributed the largest downward pull to falling transport, food and fuel costs, with average petrol and diesel prices declining between May and June. It was the first easing in petrol prices since the onset of the Middle East conflict earlier in the year.

All eyes on 30 July

The June inflation figure was the last such reading the Bank of England's Monetary Policy Committee would see before its next decision on 30 July, which arrives alongside a full quarterly Monetary Policy Report. The Committee held Bank Rate at 3.75% in June on a 7-2 vote, with two members preferring a rise to 4%.

For investors and prospective buyers, the split between a softening inflation trend and firmer mortgage pricing captures the uncertainty of the moment. A benign inflation path could support the case for rates easing later in the year, while any renewed energy shock could keep fixed pricing elevated.

The next few weeks should bring more clarity, with the Bank of England's 30 July decision likely to set the tone for fixed pricing into the autumn. For now, the divergence between cooling inflation and rising fixed rates is a reminder that mortgage costs can move independently of headline data. Silkwood will continue to monitor the market and share considered analysis as the picture develops.

Sources

• • Yahoo Finance / PA: Biggest daily jump in some average fixed mortgage rates recorded since spring
• • Heron Financial: UK mortgage market update July 17 2026, rates rise again after a fortnight of cuts
• • ONS: Consumer price inflation, UK, June 2026
• • RTE: UK inflation eases to 15-month low in June