Just because you aren't going to get anything back or you don't owe anything doesn't mean you don't have to file taxes. The Internal Revenue Service expects you to send in a tax return if your income is more than a set threshold and, if you don't, you could be subject to penalties. It's usually a good idea, anyways, since the best way to be sure that you don't owe anything or aren't owed anything is to do your taxes.

Filing Rules for Dependents

If you are still dependent on your parents for support, the filing thresholds for income taxes are relatively low. Generally, you are considered a dependent if you are under 19 or if you are a full-time student and under 24, but the best way to be sure is to ask your parents if they claim you as a dependent. If you are a dependent, you have to file a return if you make more than $1,000 in unearned income like interest or dividends. If your earned income is more than the standard deduction of $6,100, as of publication, you have to file a return. If you don't have a job and only make income from money you have saved, your parents might also choose to put your income on their return, saving you from having to file for yourself.

Filing for Non-Dependents

When you aren't a dependent, you have to file if you make more in gross income than the sum of your standard deduction and the personal exemptions you'd claim as a result of your filing status. For instance, if you are single, you'd claim a $6,100 standard deduction and $3,900 personal exemption, as of publication, so if your income is $10,000 or less, you won't have to file. If you are married and file a joint return, you don't have to send one in unless you and your spouse make more than $20,000, since you get two $3,900 exemptions and a $12,200 standard deduction.

Other Reasons to File

The biggest reason to file is that you could be entitled to get something back. For instance, if your only income was a summer job at which you made $5,000, and your employer took taxes out, the IRS could owe you a refund. The only way to get your money is to file. You also have to file if you have certain special types of income. If you made more than $400 mowing lawns over the summer after paying for gas for your mower, you have enough self-employment income that you have to file. Another reason to file could be if you got tips from waiting tables that you didn't report to your boss.

If You Didn't File

If you didn't file your taxes and you needed to, you can fix the problem. The IRS gives up you up to three years to file back tax returns when it owes you money. If you didn't file last year, you can file the return late this year, and, if the IRS owes you, you'll get a check without any penalties. After three years, the IRS keeps your money. When you owe the IRS and you didn't file when you needed to, you could be subject to interest and penalties for not filing. The sooner you file, the sooner the interest and penalties stop adding up.