Tax Calculator 2025-25 Excel Formula. Use this service to estimate how much income tax and national insurance you should pay for the current tax year (6 april 2024 to 5 april 2025). Calculate monthly income and the total payable tax amount on your salary.

It makes the complicated tax calculation process easier, giving users precise. The abcaus excel calculator compares tax incidence under the old tax regime and the new simplified personal tax regime and attempts to provide a handy tool to the taxpayers to choose the ir course of action in future.