Offset Mortgages Explained: Are They Worth It in 2025 UK?
What Is an Offset Mortgage?
An offset mortgage links your mortgage to your savings or current account. Instead of earning interest on your savings, that balance is used to reduce the amount of your mortgage you pay interest on.
Example:
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Mortgage balance: £200,000
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Savings in offset account: £20,000
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You only pay interest on £180,000
Benefits of Offset Mortgages
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Pay less interest while still keeping access to your savings.
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Shorten the mortgage term without locking up your money.
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Can be tax-efficient (no tax on savings interest because you’re not earning it, you’re offsetting it).
Drawbacks of Offset Mortgages
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Interest rates may be higher than standard mortgages.
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Best suited to people with consistent savings.
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You won’t earn interest on savings (the benefit is instead in reduced mortgage interest).
Who Are They Best For?
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Homeowners with significant savings or cash reserves.
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Higher-rate taxpayers (who save more by avoiding savings tax).
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People who like flexibility—can access savings anytime.
Are They Worth It in 2025?
With rates still higher than in previous years, offset mortgages can work well if you have savings sitting in low-interest accounts. Instead of leaving that money idle, you can put it to work reducing your mortgage cost.
Conclusion
Offset mortgages aren’t for everyone, but in the right situation, they can save you thousands of pounds. If you have strong savings and want flexibility, they’re worth considering in 2025.
