How to Write Off an Unpaid Invoice

A last resort, not a first reaction

Writing off an invoice means formally accepting that you will never be paid for work you actually did and delivered. It is sometimes genuinely the right call, but it belongs at the very end of the process, not somewhere in the middle. Too many businesses write debts off prematurely, simply because chasing them began to feel like too much effort or too much confrontation.

Before you write anything off, ask yourself honestly whether you have truly exhausted recovery — reminders, a formal demand, and proper professional collection. A debt that feels hopeless to you, sitting at your own desk with limited time and no leverage, may still be very collectable in experienced hands. The feeling that a debt is dead is not the same as the debt actually being unrecoverable, and confusing the two can quietly cost you money you were entitled to.

Confirm it is unrecoverable

A debt becomes a genuine candidate for write-off only once realistic avenues to recover it are actually exhausted: the customer has wound up, vanished without trace, or genuinely cannot pay, and recovery has been properly tried without success. Make sure that is really the situation rather than a convenient assumption:

• Has the debtor genuinely ceased trading for good?
• Have you actually tried professional recovery?
• Does the cost of chasing now clearly outweigh the debt?

Document plainly why you concluded the debt is bad, because your accountant and ultimately the ATO will want a clear basis for the write-off rather than a vague sense that it was not worth pursuing. A debt that was never really tested against professional recovery is not obviously unrecoverable, and writing it off on assumption alone is both poor practice and a likely waste of recoverable money.

Record it properly

When you do decide to write a debt off, record it correctly as a bad debt within your accounting system rather than simply deleting the invoice as though it never existed. A proper bad-debt entry keeps your records accurate and complete, and supports any tax treatment you go on to claim, whereas quietly deleting the invoice destroys the trail.

If you accounted for GST on the original sale and the debt is genuinely bad, you may be able to claim a decreasing adjustment for the GST you have already remitted to the ATO. The rules around this carry specific conditions, though, so confirm the detail with your accountant before you claim anything rather than assuming it applies. This is general information to help you ask the right questions, not tax advice, and bad-debt treatment is exactly the kind of area where a quick word with your accountant pays for itself.

Think twice before giving up

Because a write-off is effectively permanent — you are closing the door on that money for good — it is genuinely worth one final check that you are not leaving recoverable cash on the table out of fatigue or pessimism. Commission-only recovery changes the basic maths of this decision quite sharply: if there is no upfront cost to making one more serious attempt, there is very little real downside to trying before you write the debt off forever.

So consider escalating first, as our guide on using a recovery partner covers, and writing off only what genuinely cannot be recovered afterwards. You can refer the debt to Merion on a commission-only basis as that final attempt, and reserve the write-off for the residue that even professional recovery cannot collect. Used in that order, a write-off becomes a last resort applied to truly dead debt, rather than a premature surrender on money you could still have recovered.