Tax not calculated correctly with shipping taxed and taxrate .0925

I did see a post but it only applied to earlier version. Where can I correct this rounding problem? I need my tax to be .0925 or 9.25 % and have it calculate properly. It is most always a penny off. Please help. We are trying to go live.

Thjank you eddymurphy!

Also in my case I added the tax class to Tennessee as a separate Tax item.

I also changed the math.round() function to 3 instaed of 2 for all tax items and in the getprice calculator:


And then as SKILTZ says:
Chage the Calculate Price Method in TaxManager.cs from:



      protected static decimal CalculatePrice(decimal price, decimal percent, bool increase)
        {
            decimal result = decimal.Zero;
            if (increase)
            {
                result = price * (1 + percent / 100);
            }
            else
            {
                result = price - (price) / (100 + percent) * percent;
            }
            return result;
        }



to:

     protected static decimal CalculatePrice(decimal price, decimal percent, bool increase)
        {
            decimal result = decimal.Zero;
            if (increase)
            {
                result = price * (1 + percent / 100);
            }
            else
            {
                result = price - Math.Round(price * (percent / 100), 2);
            }
            return result;
        }





Jim Frye

First create seperate Shipping Tax Class in

Configuration> Tax > Tax Classes

Then Got to

Configuration> Tax> Tax Providers

select the tax provider , usually Fixed Rate

And in the tax configuration tab set the shipping tax to 9.25%

Now, in the tax settings

check shipping is taxable. and select the shipping tax class

Thanks! eddymurphy and Skiltz