Correcting mistakes in accounting software: edit, void, credit or ask
Fix mistakes in invoices and bills without damaging the records: when a draft can simply be edited, why a sent invoice is corrected with a credit note rather than changed, what voiding and deleting do, how to record refunds and duplicates, and which corrections belong to the accountant.
- Level
- Beginner
- Length
- About 45 minutes
- Contents
- 3 lessons · 1 video · final exam
- Status
- Published · updated 3 Oct 2026
Skills you'll practise
- Choose between editing, voiding, deleting and a credit note for a given mistake
- Explain why an invoice already sent to a customer isn't edited after the fact
- Check that a credit note references the original invoice and shows the credited amounts
- Calculate a partial credit including tax and record a refund against it
- Identify duplicate supplier bills and correct them before payment
- Recognize corrections that affect closed or reported periods and refer them to the accountant
Course outline
- 1.Correcting mistakes in accounting softwareVideo · 2 min
- 2.Edit, void, delete or credit?Lesson · 15 min
- 3.Credit notes, refunds and partial creditsLesson · 15 min
- 4.Bills, duplicates and corrections that need the accountantLesson · 15 min
- 5.Correcting mistakes in accounting software: edit, void, credit or ask: knowledge checkKnowledge check · 16 questions
- 6.Final exam11 questions · passing it completes the course, so people who already know the material can test out
Sources it draws on
The lessons and questions are written from these references, so learners can go back to the original.
- HMRC VAT Notice 700: The VAT guide, section 18.2 Credits (UK example: issue a credit note and keep a copy; what a valid credit note shows, including the original invoice number and date)
- IRS Publication 583, Starting a Business and Keeping Records (US example: supporting documents for entries in your books)
- General bookkeeping practice
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