Taxes and Deductions that Expires on 2012

Higher Education Expenses: After 2011, the above-the-line deduction for qualified higher education expenses won't be available, so you'd better claim it now. Taxpayers with adjusted gross incomes of up to $65,000 for singles and $130,000 for couples can claim the maximum deduction: $4,000. The deduction applies to fees and tuition paid by students enrolled in an institution of higher learning during 2011 or during the first three months of 2012.

Mortgage Insurance Premiums: Before year's end, homeowners with joint adjusted gross incomes of less than $109,000 can deduct the cost of their mortgage insurance. Afterwards, they can't.

Adoption Credits: Under a program that expires Jan. 1, parents of adopted children can claim a credit against their federal income tax of up to $13,360 for each adopted child (for qualified expenses). If the expenses have been paid for by an employer, they can exclude up to $13,360 form their gross income.

Sales Tax: Planning to buy a big-ticket item? Buy it now, if you're somebody who doesn't have to pay state and local income taxes (a retired public employee, for instance). Up to now, such people have had the option of deducting sales taxes to reduce their federal income tax. After the new year, however, they won't.

Classroom Materials: Are you a K-12 teacher, instructor, principal or aide? Have you worked in a school for at least 900 hours during the school year? If so, you can claim an above-the-line deduction of up to $250 for any expenses you have paid out of pocket for books, computer equipment, supplies or supplementary materials used in the classroom. Next year, however, you won't be able to: The deduction vanishes.

Energy Efficiency Upgrades: Taxpayers who improve their home's energy efficiency can claim a credit of 10 percent for the cost, up to a maximum of $500. You can, for example, add insulation to your attic, install insulated windows or buy an energy-efficient air conditioner or furnace. You should retain the receipts and any certification by the manufacturer that your property meets the requirements for the credit. Be advised: This is a one-time deal: If you claim credit for an upgrade this year, you won't be able to claim it next.

IRA Contributions: People 701/2 years old (or older) can get a special break for charitable giving, but only if they act before the break expires Dec. 31. Senior donors who have a traditional IRA (or other tax-deferred retirement plan) can give their distribution -- up to $100,000 -- to a qualified charity, excluding it from income. By so doing, they will have satisfied their distribution requirement without owing taxes. The move is especially advantageous, tax experts say, for seniors who don't itemize.

AMT Patch: This break, which expires annually, was created by Congress to save taxpayers from having to pay the Alternative Minimum Tax (AMT), a flat 28 percent rate imposed on high-earners. The AMT dates back to the Nixon era, when the Treasury Department, to its horror, discovered that many of the wealthy were paying nothing.

Under the AMT, anyone earning more than a set amount was forbidden from claiming certain deductions and was potentially subject to the 28 percent rate. Problem is, there was no provision made for adjusting that set amount for inflation. As a result, decades of inflation have put more and more people of relatively modest means into the 28 percent bracket.

Rather than change the law and peg the AMT's threshold to inflation, Congress has opted every year to raise the threshold. This re-adjusted amount is the so-called patch, the latest of which is now due to expire at the end of December. It's $72,450 for a married couple filing jointly, and $47,450 for a single filer.