Residential & specialist
Make your savings work alongside your mortgage
An offset mortgage links your mortgage to one or more savings or current accounts. Instead of receiving interest on the linked money, the balance is used to reduce the amount of mortgage debt on which interest is calculated. This can reduce the interest you pay while allowing you to retain access to your savings.
We will assess your complete circumstances, explain the available routes and recommend a mortgage that supports your wider plans. Your initial conversation is without obligation.
A simple offset mortgage example
If your mortgage is £500,000 and you keep £100,000 in linked savings, mortgage interest is generally calculated on the £400,000 difference. The savings do not normally reduce the legal mortgage balance and they remain available to withdraw. If you withdraw some of the savings, the amount of mortgage debt charged interest will increase accordingly.
Who this may help
Offset mortgages can be particularly useful for business owners retaining money for tax, professionals receiving irregular bonuses, borrowers with substantial cash reserves, families holding money for school fees or future costs, and anyone who values liquidity but wants their cash to reduce mortgage interest in the meantime.
What needs to be considered
- The interest rate and fees compared with an equivalent non-offset mortgage
- The average savings balance likely to be maintained, not simply the opening amount
- Whether savings would earn more after tax in a separate account
- How withdrawals and deposits affect the benefit
- Whether the product reduces monthly payments, the mortgage term or the balance
- Access rules for linked accounts and whether family savings can be included
- Financial Services Compensation Scheme protection and how deposits are held
How ERG Finance approaches it
We compare the offset benefit with the complete cost of suitable standard mortgages. The most useful comparison reflects how much cash you expect to hold throughout the deal, how often the balance will change, your tax position and whether you prefer lower payments, faster repayment or continued access to capital.
Ways the offset benefit may be used
Depending on the mortgage, the interest saving may reduce monthly payments, help repay the mortgage sooner, or reduce the mortgage balance used for payment calculations. Some offset arrangements are available on a repayment basis and some on interest-only or part-and-part terms. Product mechanics differ, so the chosen outcome must be confirmed before proceeding.
Our role
- understand the purpose of the mortgage and the outcome you need
- check affordability, lender criteria and property requirements before recommending a route
- compare the rate, fees, flexibility, early repayment charges and overall cost
- prepare the application and evidence so the lender sees a complete and accurate case
- manage the mortgage process through valuation, offer and completion
Frequently Asked Questions
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Yes. The linked savings remain yours and are normally accessible, subject to the account terms. They are not the same as a permanent mortgage overpayment.
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Usually not. Instead, the savings reduce the mortgage interest calculation. The value of that benefit should be compared with the after-tax return available from an ordinary savings account.
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Some offset mortgages allow the benefit to shorten the term while contractual payments continue. Others use it to reduce payments or the calculated balance. The available choices depend on the product.
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You retain access, but withdrawing money reduces the offset balance. More of the mortgage will then be charged interest.
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Some arrangements allow savings to match the mortgage balance, meaning little or no mortgage interest may be charged while the balances remain aligned. The capital still has to be repaid and product-specific calculations apply.
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No. Regular savings can create a benefit, but the mortgage rate, fees and likely average balance determine whether offsetting is worthwhile.
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YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR MORTGAGE. The availability and terms of any mortgage depend on individual circumstances, lender criteria, affordability, credit assessment and valuation.