I volunteer at my son's school offten can I cliam that

My car payment per month is $435.00
Can I claim that?

You can not claim the value of your time as charitable donation. However, you can claim any out-of-pocket expenses that you incurred in the course of volunteering, as well as car mileage at $0.14/mile, as chraitable deductions.

No you cannot claim your car payment. If the car was used for a sole proprietorship business, you can claim mileage. If it was used solely for the business you might be able to claim the payment against self employment income.

I would suggest you invest either in a professional tax preparer or one of the tax programs. The programs have a interview like system that ferrets out any deductions you might be able to take.