According to the IRS, nearly 100 million Americans e-filed their taxes last year — either using a desktop tax software or an online tax service, from brands such as TurboTax, TaxAct, H&R Block at Home, or CompeteTax. Because so many taxpayers take their 2011 tax returns into their own hands, it can be easy to become confused with the new tax laws. Read below to see what's changed for the 2012 tax filing season.

New 2011-2012 Tax Return Changes (from www.irs.gov)

Two Extra Days to File and Pay

Taxpayers across the nation will have until Tuesday, April 17, 2012, to file their 2011 income tax returns and pay any taxes due. Taxpayers have extra time because April 15 falls on Sunday, and Emancipation Day, a holiday in the District of Columbia, is observed the following day on Monday, April 16. By law, filing deadlines that fall on D.C. holidays are extended to the next day that is not a Saturday, Sunday, or holiday.

The April 17 deadline applies to any return or payment normally due on April 15. It also applies to the deadline for requesting a tax-filing extension and for making 2011 IRA contributions.

Tax Benefits Extended

Legislation, enacted in December 2010, extended several popular tax benefits, including the American opportunity credit for parents and students, the enhanced child tax credit and the expanded Earned Income Tax Credit.

Limited Nonbusiness Energy Property Credit Available in 2011

This credit generally equals 10 percent (down from 30 percent the past two years) of what a homeowner spends on eligible energy-saving improvements, up to a maximum tax credit of $500 (down from the $1,500 combined limit that applied for 2009 and 2010). In addition, the energy standards are increased for most property; windows, exterior doors and skylights, for example, must meet Energy Star Program requirements.

Repayment of First-Time Homebuyer Credit

Taxpayers who claimed the first-time homebuyer credit for a home bought in 2008 must generally make the second of 15 annual repayment installments on their 2011 return.

New Way to Report Capital Gains and Losses

In most cases, taxpayers now use new Form 8949 to report capital gain and loss transactions. Schedule D, the form traditionally used to show these individual transactions, is now used as a summary sheet, reporting amounts for total sales price, basis and other adjustments for all individual transactions, and for figuring the tax. For securities both bought and sold in 2011, the Form 1099-B, issued by the broker, normally shows the taxpayer’s basis. The information on this form will help taxpayers correctly fill out Form 8949.

Reporting Roth Conversions

As in 2010, income limits no longer apply to rollovers or conversions to Roth IRAs from other retirement plans. However, unlike 2010 conversions, all of the income resulting from a 2011 conversion must be included on the taxpayer’s 2011 return. See Form 8606 and its instructions for details.

Standard Mileage Rates Up in 2011

The standard mileage rate for business use of a car, van, pick-up or panel truck is 51 cents a mile for miles driven during the first six months of 2011 (January through June) and 55.5 cents a mile for the rest of the year, up from 50 cents for 2010.

The rate for the cost of operating a vehicle for medical reasons or as part of a deductible move is 19 cents a mile from January through June and 23.5 cents a mile after that, up from 16.5 cents per mile in 2010. The rate for using a car to provide services to charitable organizations is set by law and remains at 14 cents a mile.

AMT Exemption Increased

For tax-year 2011, the alternative minimum tax exemption increases to the following levels:

• $74,450 for a married couple filing a joint return and qualifying widows and widowers, up from $72,450 in 2010.
• $37,225 for a married person filing separately, up from $36,225.
• $48,450 for singles and heads of household, up from $47,450.

Health Insurance Deduction for Self-Employed People

In 2011, eligible self-employed individuals and S corporation shareholders can use the self-employed health insurance deduction to reduce their income tax liability. Eligible taxpayers still claim this deduction on Form 1040 Line 29. Premiums paid for health insurance covering the taxpayer, spouse and dependents generally qualify for this deduction. In addition, premiums paid to cover an adult child under age 27 at the end of the year, also qualify, even if the child is not the taxpayer’s dependent. However, the deduction from self-employment income for determining self-employment tax, which was available only in tax-year 2010, no longer applies.

Change for HSAs and MSAs

Starting in 2011, the additional tax on distributions from a health savings account (HSA), not used for qualified medical expenses, increases from 10 percent to 20 percent. Report on Form 8889. Similarly, the additional tax on distributions from an Archer medical savings account (MSA), not used for qualified medical expenses, rises from 15 percent to 20 percent. Report on Form 8853.

For additional information, links to forms mentioned above, and other 2011 tax return changes visit this article on the IRS website.

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