topic Sales Tax Calculation Error for Washington State in State tax filing

Sales Tax Calculation Error for Washington State

fafner — Sat, 14 Feb 2026 05:41:03 GMT

I bought a car last year, but my return shows less sales tax than 2024, when I had no major purchases. I'm using the estimation process, and added in the actual amount of tax paid on the car. Last year's tax estimate was just over $3k. This year I bought a car and paid over $3k in sales tax, so my total sales tax should be about $6k, but I can't find a way to correct the calculation.

Re: Sales Tax Calculation Error for Washington State

DianeW777 — Sat, 14 Feb 2026 23:52:07 GMT

Yes. Recording your total sales tax in TurboTax Online can be done in one of two ways. Enter the full amount of sales tax paid last year including the vehicle portion and making sure you entered the sales tax rate accurately.

NOTE: If the rate was entered incorrectly it will cause the wrong information. Be sure to enter the percentage as 6.25 as example. Do not enter .0625.

An option is to use the steps below to enter your full sales tax for the year including the vehicle portion or check the entry above and answer the questions.

Select Deductions & Credits
Scroll to Sales Tax
Select 'Enter actual sales tax paid (Requires receipts to support your total.)' Or use the rate for your state.
Enter the total sales tax paid including the amount paid on your vehicle or make sure the rate is correct and conintue
Select the larger deduction between state and local tax (SALT) and sales tax
Finish this section

@fafner

Re: Sales Tax Calculation Error for Washington State

fafner — Mon, 16 Feb 2026 07:13:23 GMT

Thanks. I kept fiddling around with it and finally the number changed. I'm not sure what I finally did that worked, but it did. I did have the percentage entered correctly. It finally came close to the IRS estimate.