Resources
Practical help with overdue invoices
Guides, templates and checklists you can use today, with or without Duewick. Free to read, free to download, no sign-up.
Practical guides
What to do next when an overdue invoice gets stuck.
Guide with copyable replies
Overdue invoice replies: what to send next
The six replies that stall an overdue invoice — from “it’s with accounts” to “we dispute this” — and a ready-to-edit next message for each.
8 min read · Updated 28 October 2026
Checklist and reply
Your customer says “I’ve paid”: what to check
A step-by-step check for when a customer says the invoice is paid but you cannot see the money — before you close it or follow up again.
6 min read · Updated 28 October 2026
Templates & checklists
Free files and lists you can use today, with or without Duewick.
Spreadsheet (Excel and CSV)
Payment promise tracker
A free spreadsheet for recording who promised to pay what, by when — and for checking the money actually arrived before you call it paid.
5 min read · Updated 28 October 2026 · Free download
For bookkeepers
Material for reviewing receivables with your clients.
Agenda, email and worksheet
The bookkeeper’s client receivables review kit
A 30-minute agenda, an information request and a one-page action summary for reviewing overdue invoices with a client.
7 min read · Updated 28 October 2026 · Free download