With the SIISARH ISR Tax Calculator you can make estimates for tax refunds, PDI projections, calculation of both net and gross fees, as well as personal deductions. It also includes a glossary with the current ISR law in Mexico and you can export all your calculations to PDF.This tool will help you find out your tax withholding and be able to make estimates that allow you to know how you should bill, what you can bill, and how much money you would get back once you have filed your tax return.
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