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How much money do you have to make every year before you have to pay tax?
Since your YouTube income is considered self-employment income and because you probably already made more than $400 in net income (after deducting expenses from the $4000 you've received so far), you will have to pay self-employment tax and file a return.  This is according to the IRS's Publication 17 (2016), Your Federal Income Tax, so assumes the same rules for 2016 will remain in effect for 2017: You are self-employed if you: Carry on a trade or business as a sole proprietor, Are an independent contractor, Are a member of a partnership, or Are in business for yourself in any other way. Self-employment can include work in addition to your regular full-time business activities, such as certain part-time work you do at home or in addition to your regular job. You must file a return if your gross income is at least as much as the filing requirement amount for your filing status and age (shown in Table 1-1). Also, you must file Form 1040 and Schedule SE (Form 1040), Self-Employment Tax, if: Your net earnings from self-employment (excluding church employee income) were $400 or more, or You had church employee income of $108.28 or more. (See Table 1-3.) Use Schedule SE (Form 1040) to figure your self-employment tax. Self-employment tax is comparable to the social security and Medicare tax withheld from an employee's wages. For more information about this tax, see Pub. 334, Tax Guide for Small Business. I'd also note that your predicted income is getting close to the level where you would need to pay Estimated Taxes, which for self-employed people work like the withholding taxes employers remove their employees paychecks and pay to the government. If you end up owing more than $1000 when you file your return you could be assessed penalties for not paying the Estimated Taxes. There is a grace period if you had to pay no taxes in the previous year (2016 in this case), that could let you escape those penalties.