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How to Chase Unpaid Invoices Professionally

Late payment is frustrating, but chasing invoices does not need to feel aggressive. A clear process helps you stay professional, protect relationships and keep cash moving.

By Julia Pritchard Published 29 May 2026 3 min read

Late payment is frustrating, but chasing invoices does not need to feel aggressive. A clear process helps you stay professional, protect relationships and keep cash moving.

Start before the invoice is overdue

Good credit control starts with clear terms, accurate invoices and customer expectations before payment is late.

  • Agree payment terms upfront
  • Send invoices promptly
  • Confirm the right billing contact

Use a staged reminder process

A polite sequence removes the emotion from chasing. The reminder is just part of your normal process.

  • Friendly reminder before due date
  • First overdue reminder
  • Stronger follow-up with payment deadline

Keep records of contact

Notes matter if a debt becomes disputed or needs formal action later.

  • Record dates of reminders
  • Save customer replies
  • Note promised payment dates

Deal with disputes quickly

Sometimes invoices are unpaid because the customer has a question or complaint. Find that out early.

  • Ask whether anything is preventing payment
  • Send missing purchase order details if needed
  • Resolve genuine errors quickly

Know when to escalate

If reminders are ignored, consider stopping further work, charging late payment interest where appropriate or seeking professional advice.

  • Set a final deadline
  • Do not keep extending credit blindly
  • Review whether the customer is worth keeping

Key takeaway

Professional invoice chasing is not rude. It is part of running a financially healthy business.

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Julia Pritchard, AAT Level 1 & 2 Certificate in Bookkeeping

Julia Pritchard

AAT Level 1 & 2 Certificate in Bookkeeping

Julia runs The Bookkeeping Co., helping UK small businesses, sole traders, freelancers and small companies keep their books tidy, their VAT returns on time and their tax bills predictable.

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