Untreated, it can lead to other serious health problems such as goiter (enlargement of the thyroid gland) which may eventually make it difficult to swallow or breathe. Untreated hypothyroidism can also increase your risk of heart disease, an enlarged heart, and heart failure.
Sales Tax Deduction for Vehicle Purchases. 2010 update: Pub. 919 no longer contains Worksheet 10. Eligible taxpayers may use Schedule L, Standard Deduction for Certain Filers, to figure their new motor vehicle sales tax deduction. Find it in Prior Year Forms & Pubs.
The IRS allows you to deduct sales tax you paid on a car purchase by itemizing on Schedule A on Form 1040. If you don't itemize, you can't deduct sales tax. You may deduct the tax whether it's charged on a new or used car, and whether you buy from a car dealer or a private party.