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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....
Income Tax Calculator India
Estimate Income Tax Liability For Individual in India...
Sales Tax Calculator for Firefox
Easily calculate your sales tax with this restartless add-on for Mozilla Firefox...
libgeier
libgeier is a library to send gathered tax declarations data to the German inland revenue offices....
Transmission protocols transmission protocols tax declarations tax library