UK overdue invoice calculator

Work out statutory interest, fixed compensation, and the next reminder line before an overdue invoice drifts any further.

DelayDocket helps freelancers, agencies, contractors, and small businesses turn one overdue B2B invoice into a clearer chase position. Enter the amount, due date, calculation date, and Bank of England base rate to see the daily interest, fixed compensation band, total add-on, and a reminder paragraph you can actually use.

Calculate the claim How DelayDocket works
  • Built for quick commercial debt follow-up, not for a full accounting suite
  • Shows daily accrual, compensation band, and practical chase wording in one place
  • Keeps the MVP simple: no login and no stored invoice data required

Useful when

  • You know the invoice is late, but you do not want to hand-calculate statutory interest
  • You need a quick figure for interest plus the fixed £40 / £70 / £100 compensation band
  • You want a reminder paragraph that sounds clear and commercially firm without turning into legal theatre

DelayDocket is an informational planning aid for UK commercial debt follow-up. It is not legal advice, and it does not override contract-specific interest clauses or specialist counsel.

Statutory interest and reminder brief

Turn one overdue invoice into a cleaner chase position.

Read the calculation logic

Tip: DelayDocket updates the URL after each run, so you can bookmark or share the exact scenario.