The tax withheld when a withdrawal is made from an RRSP is taxed at the rates in effect at the time of redemption.
Then, you must declare the amount withdrawn on your tax return for the year in which the redemption was made.
However, if you transfer your RRSP to another plan, such as another RRSP, an annuity or a Registered Retirement Income Fund (RRIF), no tax will be withheld.