Update: baffled by the mismatch by the table names (TABLE_LOCAL_SALES_TAXES vs. tax_rates_local) I tried to see where that TABLE_LOCAL_SALES_TAXES could possibly come from. I found two places in which TABLE_LOCAL_SALES_TAXES should be substitued by 'tax_rates_local'

PHP Code:
define('TABLE_LOCAL_SALES_TAXES', DB_PREFIX . 'tax_rates_local'); 
That led me to find what my problem was: I forgot to upload one file: [FONT="Courier New"]/includes/extra_datafiles/ot_local_sales_taxes_databse_tables.php[/FONT]


See what I mean by "applying patches manually is error prone"?

I wish there were a way to unpack the entire package into the directory structure in one step. Something like 'tar -xvf LocalSalesTaxModv2.2.tar'.

Thanks again for your great mod. Now I am going to check the correctness for the calculations.