Lender small print, sourced and dated
Coventry Building Society: the mortgage dates and limits that cost money
These are the Coventry Building Society rules that decide when overpaying is free, when leaving is cheaper, and how early your next deal can be locked. Every figure links to the lender's own published page with the date we last checked it — and where their public pages don't confirm a detail, we say so instead of guessing.
| Penalty-free overpayment allowance | 10% of the balance, each year · Coventry Building Society's published policy, checked 2026-08-15 |
|---|---|
| Early-lock (product transfer) window | Not verified — across the market, 3 to 6 months is typical. |
| Overpaying beyond the allowance | The excess is normally charged at your deal's early repayment charge rate — the percentages and step-down dates are in your mortgage offer. |
| Not confirmed by Coventry Building Society's public pages | which balance the 10% applies to; reset date; early-lock window. We show the market assumption for these rather than invent a figure. |
Turn the rules into your dates
Rules only save money on the days they apply to your own deal: the day the allowance resets, the day the charge steps down, the day the lock window opens. Work out your remaining Coventry Building Society allowance free, or build your full timeline in two minutes. A watch then emails you before each date — £7.99, once, no commission from Coventry Building Society or anyone else.
Frequently asked questions
How much can I overpay on a Coventry Building Society mortgage without a charge?
Coventry Building Society's published rule is 10% of the balance, each year. Overpayments beyond that are usually charged at your deal's early repayment charge rate. Your own offer document is the definitive statement.
When does the Coventry Building Society overpayment allowance reset?
Coventry Building Society's public pages state the allowance as each year but do not pin the reset date; the common pattern is 1 January, and your annual statement confirms yours.
How early can I lock a new deal with Coventry Building Society?
We have not verified Coventry Building Society's own window; across the market, existing-customer switches typically open 3 to 6 months before the deal ends, and offers from other lenders generally last up to 6 months.
WatchMyMortgage is independent and takes no commission from Coventry Building Society or any lender. Rules summarised from the linked public pages on the dates shown; lenders change terms, and your mortgage offer is the definitive statement of yours. This is information, not financial advice; for advice on your circumstances, speak to a mortgage adviser regulated by the FCA.