How to organise an unpaid business invoice
Build a clear unpaid-invoice case record before deciding what to do next: facts, documents, communications, promises, disputes and payments.
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Practical resources
Clear information before you chase.
Plain-English administrative checklists for UK businesses. Start with one organised case record, then use the guide that matches the next task. The resources do not decide whether money is legally owed.
Canonical starting point
Organise the invoice before choosing the next action.
The organisation guide connects the invoice facts, source documents, communications, payment promises, disputes and balance record. Use it first when the history is spread across inboxes, folders and notes.
Open the organisation guide →How to chase an overdue invoice professionally
Prepare a calm business-invoice reminder, ask for a useful response and preserve an accurate sent record.
Read the guide →How to record a promise to pay an invoice
Turn a customer payment promise into a dated, traceable case record without losing the original message or later outcome.
Read the guide →How to record an invoice dispute clearly
Capture what the customer disputes, what records support each position and what needs review before another chase.
Read the guide →How to build an invoice evidence register and chronology
Organise source documents, communications, promises, disputes and payments into a clear dated business-invoice record.
Read the guide →Preparing an unpaid-invoice record before a formal step
An administrative checklist for organising the facts and source documents before seeking advice or preparing a formal unpaid-invoice communication.
Read the guide →What to record before using a late-payment calculator
A calculation-input checklist for an overdue business invoice, including balance changes, assumptions and the limits of an indicative result.
Read the guide →For bookkeeping teams
Collect client authority and source records consistently.
These resources keep client decisions, practice access and professional scope visible. They do not imply a referral agreement or that access extends beyond the purchased package and assigned cases.
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