Reference/ Account number:
Balance Due as at [date]: £[ ] (Comprising capital sum of £[ ] plus interest of £ [ ] plus compensation for debt recovery costs of £[ ]).
Your payment for invoice number [ ] for [specify goods purchased] is now [X] days overdue. No queries have been raised on your account, so the balance remaining is undisputed.
In accordance with the late payment legislation, our company charges debt recovery costs of [£ ] and interest on late payments of X% (i.e. the current reference rate plus 8%). This means that interest will continue to accrue on the above invoice at a rate of [ ] a day. As of today's date, the outstanding interest stands at [ ].
Please send me your payment by [specify desired method of payment] by return of post. If you have any queries, please contact me by telephone on [ ].