Tax Year Prior to 2020: If you claim 0 dependents and file a 1040 ez should you get a full refund of federal taxes paid

[kmonarch]

trying to determine what % of refund of federal taxes paid that my son should receive when he files 1040 EZ.  He claimed 0 exemptions and made under $10k.

[KarenL2]

It depends on filing status and if he can be claimed as a dependent on your tax return.  If he filed as Single, there will be a $6,300 subtraction from his taxable income.  If nobody else can claim him as a dependent on their tax return (yourself, for example) he will get another $4,000 subtraction for the Personal Exemption amount.  That's. $10,300.  If he earned less than that and all of the above is true, he will get a full refund of federal taxes.

Anything above that would be taxable income (assuming there are no other deductions or credits allowed).  For 2015, he can have up to $9,225 of taxable income that would be at a 10% tax rate.  (Taxable income is the amount after the subtractions above.)