How to add 8.35% tax rate?

[Shabbysawhorse]

Flowed directions to add tax to our invoices. However it will not allow you to put in the exact tax. Our tax rate is 8.35% since we do all of our business is done from our home. But we can only add 8% or 9%. 

[VanKalkerFarms]

You should be able to add decimals to your tax rate. If you're doing it in the app, there's a decimal in the lower left corner of the number keypad.