Why do my old invoices change when I change my tax configurations?

Currently, changes to tax configurations impact all future and historical tax data.

Each invoice only saves a Tax Amount and a Tax ID. This means that information like the Tax Name and the rate applied (e.g. 5%) are not saved on the booking. Also...

• If a Tax Name or rate changes, then every invoice that uses that tax shows the new Tax Name and rate. The Tax Amount and Booking Total do not change.
• If a new product is added to a booking or a product is removed, then taxes for all products on that booking are recalculated.
• If an product is edited, taxes recalculate for that item/product.

Best Practice

Refrain from changing existing taxes except for renaming a tax.

Instead, please:

1. Remove the current tax from all products.
2. Create a new tax with the new tax rate.

This way, the new tax is used going forward, and the old tax remains the same on existing invoices.

For more information, please see the following articles:

• Configuring Settings For Taxes (and fees)