Hi usernabilissa,

Nomally the invoice amounts only have 2 decimal digits. You can only have more than two on the rates.

You can select a number format in the settings to limit the decimal place of the amounts into two.

1. Click the Gear icon and choose Accounts and Settings.
2. Choose the Advanced bar.
3. Scroll down to the Other Preferences section.
4. Select the number format you want.
5. Click Save and Done.

Please let me know how it goes.