I worked 3 part time jobs and went to school full time, I only made 21K total, Intuit says im gonna owe 530. I am 21. I thought full time students got all of the money back
Not sure why you expected that students do not pay tax. Students do not get any sort of "tax-free" status. If someone told you that, they were mistaken. If you are filing single, then your federal standard deduction is $14,600. That is the amount of your income that is "tax free"-- just like any other single filer. The rest of your income is subject to federal tax. If you did not have enough tax withheld from your paychecks then it is possible for you to owe. When you enter your W-2's with the amounts of income and the amounts withheld for federal and state tax, the software calculates whether you owe more tax or get a refund.
If you are claiming yourself, you may have tuition expenses to give you a credit and reduce your tax liability, Of course, you could have scholarship income greater than tuition that is taxable. Being a student increases the difficulty of your tax return. If you want to reply with 1098-T box 1 and box 5 information, we can help. If your parents are claiming you, you need to talk to them and find out if some of your scholarship is taxable income to you.
Another thing----you mentioned having several W-2 jobs. When you have a W-2 job the employer withholds as if that job is your only job. So with three employers relatively low amounts of income, you probably did not have enough tax withheld from your paychecks to meet your tax liability.