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Income Tax Calculator India
Estimate Income Tax Liability For Individual in India...
Open Tax Solver
OTS GUI is an optional Graphical User Interface for all Open Tax Solver programs and tax-form versions....
frontend GUI Open Tax Solver GUI OTS GUI Open Tax Solver frontend
Business::Tax::VAT
Perform European VAT calculations...
Business::Tax::VAT::Validation
A class for european VAT numbers validation....
Sales Tax Calculator for Firefox
Easily calculate your sales tax with this restartless add-on for Mozilla Firefox...