LINTL
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Late-payment interest calculator.

If a commercial customer pays an invoice late, you are entitled to statutory interest and a fixed sum towards recovery costs. Work out what you are owed.

Statutory interest is this rate plus 8%. Set it to the base rate in force on 30 June (for debts due Jul to Dec) or 31 December (Jan to Jun). Check the basis.
This is a general guide, not advice. It provides an automated, first-pass estimate under the Late Payment of Commercial Debts (Interest) Act 1998 and may not reflect your exact circumstances (contractual interest terms, disputed sums, partial payments, or the correct reference base rate may change the figure). It is not legal, financial or professional advice and is not a substitute for a qualified solicitor or accountant. You must verify any figure before relying on it. Lintl accepts no liability for any loss arising from reliance on this tool.
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