Guides

• How Statutory Late Payment Interest Works in the UK — Who can charge it, the 8% + reference rate, which Bank Rate applies, the day count and when you can't use it.
• Bank of England Reference Rate for Late Payment Interest — The 30 June and 31 December Bank Rates used for statutory interest, and how to pick the one for an invoice.

Tools

• Late payment interest calculator (UK)
• Statutory interest calculator for overdue invoices
• Late payment compensation: £40, £70 or £100

Comparisons

• A late payment interest spreadsheet that picks the rate
• A Chaser alternative for the late payment maths