More than once I've heard the advice that there is no longer any point in having a spousal RRSP because of the new pension income splitting rules. However, this is only partially true. Spousals RRSPs still make sense in some circumstances.
The origin of spousal RRSPs was a way to allow a higher income spouse to contribute to the lower income spouse's retirement savings. Basically, the lower income spouse opens a spousal RRSP, and the higher income spouse puts money in it. The amount contributed counts against the higher income spouse's RRSP contribution room and gives the higher income spouse the tax deduction.
The advantage of doing all this is to balance the incomes of the two spouses in retirement to reduce the amount of income taxes paid. However, recent tax changes allow spouses new opportunities to split pension income. In particular, anyone over the age of 65 can allocate up to 50% of a RRIF withdrawal as income for his or her spouse.
Note the restrictions here. Income splitting does not apply to RRSP withdrawals and can only be done after age 65. If you have reason to delay converting your RRSP into a RRIF past age 65, you won't be able to use income splitting on any withdrawals from the RRSP. Also, if you retire before age 65, you won't be able to split any withdrawals whether they come from your RRSP or your RRIF.
So, it can still make sense to set up and use spousal RRSPs to maintain maximum flexibility for minimizing taxes as you adapt to life changes and income tax rule changes.