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Mortgages & Rates12 Sep 2026 · 1 min read

Fixed-rate mortgage costs continue upward drift, squeezing UK property investors

Archie

Prop AI Deals

Recent data from Moneyfacts reveals that fixed-rate mortgage prices have edged higher again this week. The average two-year fixed rate has risen by 7 basis points to 5.67 per cent, while the five-year fixed rate climbed 8 basis points to 5.72 per cent. These incremental increases follow a series of lender adjustments reflecting ongoing market pressures.

For UK property investors, this trend means borrowing costs remain elevated compared to the sub-3 per cent levels seen just a few years ago. Our data at Prop AI Deals shows that higher fixed rates are already dampening purchase activity, particularly for smaller-scale investors reliant on mortgage finance. The squeeze on yields is most acute in regions where rental growth is modest, reducing the margin between rental income and mortgage expenses.

This environment places a premium on careful deal selection. Investors may need to prioritise properties with stronger rental demand or those in areas with above-average rental growth to maintain positive cash flow. Fixed-rate hikes also increase the appeal of longer-term fixes for certainty, despite the higher headline rates, as variable rates remain volatile.

While some lenders may pause hikes if inflation eases, the current trajectory suggests investors should factor in sustained borrowing costs above 5.5 per cent for the foreseeable future. This will likely slow the pace of portfolio expansion and encourage a more cautious approach to leveraging debt in the UK property market.

Source: Mortgage Strategy

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