The application allows defining future valid‑from dates for tax codes only if the tax code is not a duplicate. While this behavior is understandable as the standard application logic, it becomes a limitation in scenarios where tax rates are expected to change in the future. In such cases, users are unable to maintain multiple future tax rates for the same tax code.
Currently, the only possible workaround is to create a new tax code with a different ID, even though it represents the same tax code with a revised rate. This results in multiple tax codes being created in the application, as the system does not allow maintaining the same tax code with different rates across different validity periods.
If the application could filter and identify valid tax codes based on their validity period dates in the tax codes window, it would be possible to define multiple tax codes with the same ID but different tax rates.
For example, the tax code ST may have a rate of 25% valid from 01/01/2026 to 31/12/2026. If, due to government regulations or other factors, the rate increases to 27% from 2027, the application currently does not allow creating a tax code with the ID ST for 2027, even though the previous rate expires in 2026. As a result, users are required to create a different tax ID (for example, ST2) to define the new rate
.
However, if the application could determine valid tax codes based on their validity periods, this limitation would be resolved.
