The result: The progressive ratestructureofthe federal income tax means income splitting combined with individual filing can only create marriage bonuses.
By looking at changes in therate, base and structureofthetax since it was introduced in 1916, the two economists tried to gauge whether these changes have affected the size of reported taxable estates.
January 1 sees the return of higher tax rates, embedded marriage penalties in thetaxratestructure, added taxes from the Patient Protection Act, and frustrated taxpayers wondering just how hard they will be hit.