The "witholding" rate is 10, 20, or 30% based on amount of withdrawal. But the actual tax rate of the withdrawn amount depends on your total income when you file the tax return at the end of the year. It could go from 0%, if your total income is say less than $15,000 or so, depending on the Prov of residence, to the top rate of around 40%, if your total income exceeds $70,000 or so, again depending on the prov where you reside. (All very rough approximations.)