An invoice is static. It reflects the rates and policies that were in place at the time the invoice was originated. To update the invoice to reflect new rates, fees, deposits or policies simply click on the "Regenerate Invoice" button within each invoice.
Occasionally an invoice regeneration will also fix any anomalies that could creep into the invoice.
Before regenerating an invoice, it is usually a good practice to print the invoice or save it as a pdf in the event you need to reference what was on the invoice originally.
An invoice regeneration will not remove any payments or refunds applied to the invoice.