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Early Repayment Charge Calculator UK

Estimate a possible charge for repaying, switching or porting a mortgage before a product period ends.

This calculator is for illustration only and provides estimates for general information. It is not mortgage advice, a mortgage offer, a decision in principle or a guarantee of rates, fees, eligibility or savings.

ERC calculator

Estimated ERC
£—
Estimated total exit cost
£—

This estimate does not include product fees, legal costs, valuation fees or the effect of any fee-free overpayment allowance.

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Email yourself a PDF summary of the figures currently shown on this calculator.

Calculator results are estimates only. Actual rates, fees, eligibility and products depend on your circumstances and lender criteria.

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Why ERC estimates need checking

ERCs can be calculated differently across lenders and products. Some are based on the amount repaid, some reduce by year, and some allow a limited annual overpayment before a charge applies.

Your home may be repossessed if you do not keep up repayments on your mortgage.

Frequently asked questions

Where do I find my ERC percentage? +
Check your mortgage offer, annual statement, online account or ask your lender. ERCs can reduce over time and product rules vary.
Does the calculator include overpayment allowances? +
No. Some products allow limited overpayments without charge. Check your product terms before relying on an estimate.
Should I pay an ERC to switch mortgage? +
That depends on rates, fees, remaining deal length and your circumstances. This calculator does not make a recommendation.

Suggested next steps

Related calculators and guides

Early Repayment Charge Calculator GuideUnderstand estimated early repayment charges when overpaying, remortgaging or redeeming a mortgage early.First-Time Buyer Mortgage Calculator GuideEstimate first-time buyer mortgage costs, deposit needs, repayments and stamp duty before speaking with an adviser.Fixed Rate Mortgage Calculator GuideEstimate monthly payments for a fixed-rate mortgage and compare the effect of term, balance and rate assumptions.

Calculator-led mortgage planning

UK Mortgage Calculators is centred on practical estimation tools. The pages help you model cautious scenarios before you decide whether to request a broker or adviser callback.