how to find out your tax refund amount?
['If you filed a Form 1040, the Refund Amount is shown on Line 21a.', 'If you filed a Form 1040NR, the Refund Amount is shown on Line 73a.', 'If you filed a Form 1040NR-EZ, the Refund Amount is shown on Line 23a.', 'If you filed a Form 1040PR, the Refund Amount is shown on Line 13a.']