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What are early repayment charges? When do I pay them?

Understand when early repayment charges apply, how much they cost, and how to avoid paying them when remortgaging.

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Last updated 27 Nov 2025

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Key takeaways

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Early repayment charges are fees (typically 1-5% of your outstanding balance) for breaking your mortgage deal early

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They usually only apply during your initial deal period (2-5 years), not for your entire mortgage term

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You'll face ERCs when remortgaging, making large overpayments, or paying off your mortgage during the charge period

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Most lenders allow 10% annual overpayments without penalty - time your remortgage to avoid charges entirely

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Calculate whether long-term savings justify the upfront ERC cost before switching deals early

Early repayment charges guide

Early repayment charges (ERC) can cost you thousands of pounds. They might apply to you if you’re getting a mortgage, looking to remortgage or pay off your mortgage. It's important to understand these potential charges and how to avoid them before making any decisions.

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What is an early repayment charge?

An early repayment charge is a fee your mortgage lender charges if you remortgage or pay off all or part of your mortgage earlier than agreed. Think of it as a penalty for breaking the terms of your mortgage deal before the agreed period ends.

How are ERCs calculated

You’ll likely encounter ERCs during the initial period of a fixed-rate, tracker, or other mortgage deal – they typically apply in the first 2-5 years. The percentage may change as your mortgage goes on.

An early repayment charge is usually calculated as a percentage of your outstanding mortgage balance. Usually between 1% and 5% (depending on your mortgage deal), meaning it could cost you thousands.

Early repayment charge example

If you have a £200,000 mortgage with a 5% charge for the first year, your ERC would be £10,000. If this reduces in the second year to 4%, and assuming your ERC is based on the outstanding balance which is now £185,000 for example, your early repayment charge would be £7,400.

It's important to understand that ERCs aren't just about paying off your entire mortgage. They can also apply when you make overpayments above your lender's annual allowance (usually 10% of your outstanding balance), switch to a different mortgage product, or remortgage to a new lender during the charge period.

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