A list of important tax deadlines for the 2011-2012 tax season.

A database of the most commonly used IRS tax forms.

Descriptions of the most common IRS tax penalties with examples.

Read about the advantages of e-filing and how to e-file with online tax software, as well as key e-filing dates.

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 what's changed for your 2011 tax return.

Whenever you make a huge life transition—whether you get married or you retire—your taxes will be affected. Read to find out what kind of tax changes you should expect.

If you are a U.S. citizen and are living in another country, you still need to file your tax return and pay taxes each tax year. Use these tips to help you file your taxes.

This tax calendar has the due dates for 2012 that most taxpayers will need. Employers and persons who pay excise taxes also should use the Employer’s Tax Calendar and the Excise Tax Calendar.

This tax calendar covers various due dates of interest to employers. Principally, it covers the following federal taxes.

Compare two of the top tax software providers on price, options, guarantees and customer support.