php - sales tax rate retreval from zip code -


what popular 3rd party applications can use retrieve current sales tax rate zip code? using php. thought building own after noticed u.s. has 40k+ zip codes wouldn't easy. options.

are free or have pay monthly

thanks

a zip code not enough determine sales tax, since area covered can (and does) span multiple tax jurisdictions. need package retrieve based on street address , zip code. there companies out there allow perform such queries via web service, fee. in process of looking https://www.taxdatasystems.net . charge between 7 , 15 cents per query, depending on monthly volume.


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