Click here for Zip Tax for MIVA Merchant 4.
The Zip Based Sales Tax module allows you to specify one or more ranges of zip codes, and to assign a sales tax rate to each range. If you need to charge varying sales tax rates depending on the zip code of the ship-to address, this module will suit your needs. You can also specify whether to tax shipping or not.
Disclaimer:: The store owner is solely responsible for maintaining compliance with all tax laws. By using this module you agree NOT to hold the developers and distributors liable for any breach
of tax regulations.