Use this form to determine the allocation of tax amounts between married filing separate spouses or registered domestic partners (RDPs) with community property rights. Current Revision Form 8958 PDF Recent Developments None at this time. Other Items You May Find Useful All Form 8958 Revisions About Publication 535, Business Expenses About Publication 550, Investment Income and Expenses About Publication 555, Community Property Other Current Products Related About Form 1040, U.S. Individual Income Tax Return