What do you mean by "4 returns?" Do you mean you entered four W-2's? Your income tax refund is based on the total of all of your income and the difference between your tax withheld on all of the W-2's and your tax liability. It is not "per W-2." Did you enter all of your W-2's on the same tax return? You did not try to file four separate tax Form 1040's, did you?
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