Tax season is here. Last year's average tax refund was almost $2,500. Given the economy, you can probably use this money now. Fortunately, you can get your refund in less than two weeks if you file your taxes electronically. And filing your return using tax software and the Web has never been easier.

GET ANSWERS

A mistake on your taxes can be costly. And you could do without the hassle of an audit. That's why it's important to understand tax laws.

The Internal Revenue Service has plenty of information on its Web site, but it can be difficult to understand. Sites like Motley Fool, MSN Money, Kiplinger's and SmartMoney can help. You can read postings on these sites from tax experts written in plain English. Chances are, you'll find answers to your questions. You can also learn about commonly overlooked deductions, which can lead to more money in your pocket.

(Web addresses for these sites are at www.komando.com/news. That also goes for other sites in this column.)

There's more to taxes than deductions, though. If your situation is complex, you may want to hire a professional. The above sites will help you decide when it's time to call for help. Remember that paying a professional will be cheaper than an audit.

FILE ELECTRONICALLY

In recent years, the IRS has encouraged taxpayers to file electronically. This year is no different.

Anyone can file federal returns for free using the IRS' e-File option. With e-filing, you can get your refund in as few as 10 days.

Your tax preparer can e-file for you, or you can e-file using tax-preparation software. E-filing is also available through the IRS' Free File Fillable Forms.

I recommend using tax-preparation software to file your taxes. All you need are your financial records. The software performs the calculations for you. And you don't need to worry about finding the correct forms.

TaxCut, TaxAct and TurboTax are three of the most popular tax programs. Prices for personal versions range from free to $50. You may have to pay extra for your state returns.

Though IRS e-filing is free, many companies charge a fee for filing. This is usually about $10 each for federal and state. This year, though, many companies are waiving filing fees.

FREE FILING OPTIONS

The IRS has partnered with software developers to offer free software to millions of Americans. The IRS says 70 percent of taxpayers qualify for free software.

To qualify for Free File, your adjusted gross income for 2008 must be $56,000 or less.

Even if your AGI topped $56,000, you can still file for free. You won't get tax-preparation software, though.

Instead, you can access the IRS' Free File Fillable Forms. You complete the forms as you would paper ones. However, you file them electronically.

These options are available only through IRS.gov. A company may provide free software through the IRS' site, but you may not get free software and filing on the developer's site.

GUARD YOUR INFO

Your tax return is a treasure trove for would-be thieves. So, before you get started, make sure your security software is current. Then scan your computer for any security threats.

Companies listed on the IRS' site transmit data securely. You don't have to worry about your return being intercepted. And your information won't be shared with third parties without consent.

Finally, watch out for the criminal element. Scammers love tax season almost as much as Christmas.

Ignore any e-mail purportedly from the IRS. Don't call any phone numbers or click any links in the messages. The IRS does not request information via e-mail, nor does it send mass e-mail alerts.