Do I claim half of a jointly purchased vehicle's sales tax?

[KatrinaB]

Yes, if you are filing as married filing separately then you can split the vehicle's sales tax with your spouse. Since it is jointly owned you each should deduct the amount attributable to what you paid.

[visceralhaecceit]

What if you're not married and jointly purchased a vehicle?

[KatrinaB]

The same rule applies. You should each deduct the portion that you paid.

[visceralhaecceit]

Okay, thank you!

[KatrinaB]

You're welcome!