Changing Sales Tax Rates

[absoluteblock]

Our sales tax increases 1% effective today.

How do I increase the rate without screwing up the tax calculations made with the lower tax rate?

In other words, I want to be sure I don't overpay sales tax for my past sales. I need 7.75% for sales prior to today, and 8.75% from today forward.

How can I accomplish this?

[kuroi]

You just change your tax rate. The tax charged is snapshotted into the orders and orders_products tables at the time the order is placed, so the new rate will only apply to future orders.

[absoluteblock]

Thank you.