Write Off or Void an Invoice

Two ways to close an invoice you will not collect. They are not the same.

4 min read Updated November 2026 Invoicing

The short version

Write off an overdue invoice you give up on. Void an invoice that was sent by mistake and has no payment. Both stop reminders. A voided invoice keeps its number.

The difference

Mark as written offVoid invoice
WhenThe invoice is overdue and you give up collectingNothing paid and no credit note
RemindersStopStop
NumberKeptKept, never reused
Customer seesWritten offVoid
Money can still arriveYes, you can record itNo, nothing is due
Counts as invoicedYesNo

Write off is for a debt. Void is for a mistake.

Mark as written off

Open an overdue invoice, select the menu next to the buttons and choose Mark as written off. Confirm with Write off. The message says you give up on collecting it, and that if the money still arrives later you can record it.

The item is only in the menu while the invoice is overdue. Reminders stop at once. The activity adds Written off. If the customer pays later, use Record a payment and the invoice turns Paid.

Void invoice

Choose Void invoice from the same menu, then confirm. The invoice is cancelled and nothing more is due. It keeps its number, which is never used again, so your numbering has no hidden gaps. Your customer is not emailed.

You can only void an invoice with nothing paid and no credit note. If money came in, use a credit note instead, which corrects the invoice and can refund the payment.

What your customer sees

Their invoice page and PDF show a ribbon: Written off or Void. A voided invoice cannot be paid. Link previews show the same status.

How reports treat them

  • A written off invoice still counts as invoiced. It is left out of what you are owed and out of the aging buckets.
  • A void invoice is not counted as invoiced and not counted as owed.
  • Voiding a booking invoice frees the booking to be invoiced again. Voiding an invoice that holds time entries frees them.

See Reports and exports.

FAQ

Q

Can I void a paid invoice?

No. Voiding needs nothing paid and no credit note. Issue a credit note to correct a paid invoice.
Q

Can I reuse the number of a voided invoice?

No. The number is never used again.
Q

Can I undo a write off?

You cannot undo it, but if the money arrives you can record the payment and the invoice turns Paid.
Q

Why is Mark as written off missing?

It only appears when the invoice is open and overdue.

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