Backdating Invoices is Illegal When Some reasons for backdating invoices are simply underhanded and illegal. An example of this would be maintaining a fourteen-day payment window as company policy and backdating an invoices thirty days to try to force customers to pay late fees.

Is it legal to change invoice date?

Is It legal to Change an Invoice? Its not legal to change an agreed upon invoice unless its to correct a mistake. To protect yourself, contact and collaborate with the other party before either party makes any changes to the invoice.

How do I cancel an unpaid invoice?

You send that credit note to your customer and it will cancel the amount due on invoice 0025. In this way, the credit note will have its own unique number and the next time you issue an invoice, you should use the next appropriate number for your invoice sequence, in this case 0026.

Can you correct an invoice?

You can fix a mistake on a handwritten invoice by simply crossing out the wrong number and writing in the correct amount. However, your invoice will look more professional -- even if it is handwritten -- if you start over with a fresh invoice.