There is no refund calculator to figure out the portion of the refund that belongs to the injured spouse; however, if the injured spouse earned all the money reported on the return, then the full refund will be allocated to them.
The IRS calculates the refund for the Injured Spouse as follows:
•The tax liability for each spouse is calculated as if they are filing separately
•The Injured Spouse’s tax liability is divided by the total tax liability
•This percentage is applied to the couple’s actual joint tax liability to get the Injured Spouse’s share of the tax
•Any withholding and estimated payments made by the Injured Spouse is subtracted from their share of the IRS calculated tax liability
