If you made a major purchase such as a used motor home, the amount of sales tax you paid may make it worthwhile to itemize your deductions and claim all sales taxes during the year rather than state and local income taxes. Keep the receipt from your purchase of the used motor home. Although you do not have to submit it with your tax return, you do need to have it in the event of an audit.
Add the sales taxes on your used motor home to any other sales taxes you paid during the year. Support the deductions with receipts.
File your income taxes using IRS Form 1040. The deduction for the sales taxes on your used motor home is an itemized deduction, so you cannot use any other form.
Enter the amount of sales taxes paid, including the sales tax on your used motor home, on line 5 of Schedule A.
Check the box next to line 5b to indicate to the IRS that you claimed sales taxes rather than state and local income taxes as a deduction.
Total your itemized deductions, including your used motor home sales taxes, and record the sum on line 29 of Schedule A and line 40 of Form 1040. This total replaces your standard deduction.
Things You'll Need
IRS Schedule A
IRS Form 1040