| If it is a true lump sum bonus, they will withhold 30% for income taxes, as well as 7.65% for Social Security and Medicare, plus about 6-10% for California state income tax.
What the actual income tax rate is for federal and California taxes depends on your total income picture.
Since the relocation bonus is probably your reimbursement for moving expenses, some (but not all) of your moving expenses are deductible as an adjustment to income. You will have to file Form 3903 with Form 1040. |