Early repayment charges on UK mortgages explained

Why ERCs exist

Fixed and discounted mortgage deals can give the lender an expected stream of payments for a period. The contract may impose a charge if the borrower repays early. ERCs are often expressed as a percentage that changes over the deal, but the structure is not universal. The amount may depend on the date, repayment size, product part and allowance already used.

Do not confuse an ERC with an administration fee, exit fee or remortgage cost. A decision may involve several charges. Ask for a breakdown rather than entering one unexplained figure into a calculator.

What the FCA rules say

FCA Handbook MCOB 12.3 says an ERC under a regulated mortgage contract must be capable of being expressed as a cash value and be a reasonable pre-estimate of costs resulting from early repayment. The maximum ERC must be disclosed in relevant illustrations and the mortgage offer when it applies. This does not mean every charge is the same or that a borrower can infer today’s charge from a maximum shown years ago.

FCA statement rules require information about the date an applicable ERC ceases and the charge expressed as a monetary amount. Use the latest statement as a starting point, then obtain a date-specific figure from the lender because the balance or charge band may have changed.

Partial overpayment versus full redemption

A voluntary payment within an allowance can have no ERC while a larger partial repayment triggers one. Paying the mortgage off completely can involve an ERC plus a redemption or closing fee. Moving home and “porting” a mortgage does not automatically eliminate the issue: porting is usually treated as a new application, and timing or borrowing changes can matter.

If the mortgage has several parts, one part may be inside an ERC period and another outside it. Ask how the payment is allocated and whether you can direct it. A blended calculator rate will not reveal different charge rules.

Evaluate the charge against the timing

Compare two scenarios over the period that matters: pay now and incur the confirmed ERC, or keep the cash safely until the charge falls or ends. Include savings interest after any tax, the mortgage interest that might be avoided, and the value of keeping cash accessible. Do not compare a one-off charge with decades of projected interest while ignoring that the fixed deal ends soon.

Example: a borrower is six weeks from an ERC step-down. Rather than assuming immediate repayment is best, they request written redemption figures for both dates and check the allowance reset. The answer could favour waiting, paying only within the current allowance, or proceeding now—but only the actual figures can show that.

Questions to ask before paying

1. What ERC would apply if I pay £X on this exact date?
2. How much penalty-free allowance remains in pounds?
3. When does the ERC percentage reduce or end?
4. Does the allowance reset before then, and how is it calculated?
5. Are there separate product parts with different charges?
6. Are there exit, redemption or administration fees as well?
7. How will the payment change my required payment and term?

Avoid common workarounds that are not workarounds

Splitting one large payment into smaller transfers does not necessarily avoid an ERC. Contracts may aggregate payments across an allowance period. Paying on the last day of a period may also fail if the lender posts it later. Never rely on forum descriptions of another customer’s product.

If a lender’s published page describes special treatment for small overpayments or an overpayment reserve, read it alongside your mortgage offer and obtain confirmation. A product feature is not a general legal right.

If the charge seems wrong

Ask the lender to explain the calculation against the offer and statement. Keep the offer, payment confirmation and correspondence. Use the lender’s complaints process if the application appears inconsistent. This page cannot decide a contract dispute; legal or regulated mortgage advice may be needed for a material sum.

When the ERC is correctly due, include it transparently. Report both gross interest reduction and net result after the charge. A positive gross saving is not enough to justify the transaction.