This article is a step by step breakdown on how to show prices (in Step 2 and 3) including sales tax. To set up a sales tax, you can go to Settings > Branches, which you can learn more about here.
Firstly, navigate to Settings > Car Rental as shown in the picture below highlighted in dark blue.
Secondly, select “Yes” under “Show Prices Including Sales Tax” as shown in the picture below highlighted in orange.
After you have clicked “Yes”, click on the blue “Save” button located on the bottom of the page to save the changes.
Now when you are on Step 2 or Step 3 of the reservation, you will notice that the prices include sales tax as shown in the pictures below for comparison.
The picture above shows when the price does not include the 6% sales tax and the picture below shows when it does include the sales tax.
Lastly, under Settings > Car Rental (Text Settings tab) you can also change the text to “Includes taxes and insurance”.