If my income was 11000 in 2017 must I file a tax return?

Whether you need to file a tax return depends on various factors, including your filing status, age, and whether you had any other income sources. For 2017, if your income was $11,000 and you were single and under 65, you were generally required to file a tax return since the filing threshold was $10,400. It’s always best to consult the IRS guidelines or a tax professional for your specific situation.