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.
If you purchased a used RV, you still may be able to itemize the sales taxes paid under general sales tax, Schedule A on line 5b. The IRS has an excellent worksheet for this purpose. Remember, you can deduct sales taxes only if you don't deduct state income taxes on Schedule A line 5a.