The list of common ways people get into trouble with the IRS.
1. Filing too many exemptions. An exemption gives you a major tax deduction, and some taxpayers can't resist the temptation to report more exemptions than they're entitled.
You can only claim exemptions for yourself, a spouse and for all "dependents." Dependents have to meet specific criteria, however, so make sure you follow the IRS guidelines so that you don't mistakenly file an extra exemption.
2. Being unaware of taxes levied for early withdrawal from certain retirement plans. If you withdraw from a retirement fund such as a 401(k) or IRA before you're 59 1/2, you may face a 10 percent federal penalty on your investments, as well as a state penalty and an income tax on the money withdrawn.
3. Not paying enough taxes when self-employed. Many people who own their own businesses don't know how much they have to pay in taxes. The tax structure for a self-employed person - what to pay, how to pay and what can be deducted - is decidedly complex, so it's easy to become confused.
4. Not paying taxes on winnings. It is necessary to report all gambling winnings, including winnings from lotteries, casinos and horse races, as income.
So, just avoid the above to have no problems with IRS.