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Subject: Prepay mortgage or make RRSP contribution?  Date: 2/2/2003 8:11 PM 
Author: jesting2  Number: 1099 of 1193 
Greetings Fools: It looks like this board has been pretty much abandoned but just in case anyone out there is interested and would miss it otherwise, I am cross posting this from the Canadian General Board.... At this time of year, we see the question of whether it is better, to contribute to an RRSP or prepay the mortgage. The answer that is often proposed by financial advisors is to contribute to the RRSP and use the tax refund to prepay the mortgage. In his column in the Toronto Star on Feb 1/02, Bob Aaron quips "Nobody earns a fee when a homeowner pays down his or her mortgage." inferring that investment advisors who recommend making RRSP contributions do so primarily to earn their omissions and the banks do not want you to pay off your mortgage faster than necessary. In response to the advice above, he writes, "For years I have always advised clients  particularly young clients  exactly the opposite: forget the RRSPs and instead pay down the mortgage on their homes as fast as possible" He goes on to say that the BMO Investment Centre web site states "that excess cash should be used to invest in an RRSP and then the tax refund can be used to pay down the mortgage. The flaw in this argument is that if it makes sense to use just the tax refund to reduce the mortgage, why not take all of the excess cash, pay the tax on it, forget the RRSP, and use all of what is left over to pay down the mortgage. In this way the mortgage can be paid down much faster." The way I see this, you are not making the best use of your income by doing this, since you only have the post tax dollars to apply to the mortgage. If you had $5,000 in pre tax dollars and your tax rate was say 30%, you would only have $3,500 to put down on the mortgage. If you put the $5,000 into the RRSP, the full $5,000 would be working for you in the RRSP and the tax refund of $1,500 could be working for you on the mortgage. Personally, I have never believed that ignoring RRSPs is the correct advice, especially for the younger investor. It has been a long time since I looked at this question for my clients, so I thought I would reexamine it to see if my thoughts had changed. I decided to work up an example based on the following assumptions: Annual income of $40,000 for someone aged 30 with a retirement target of age 60. No allowance for increase in income for their working lives. No pension or DPSP so no pension adjustment to affect their contribution level of 18%. No allowance for anticipated increases in RRSP contribution limits since the Feds have been pretty chintzy about this in the past. So here goes: An income of $40,000 would qualify the investor to put $7,200 a year ($600/mo) into the RRSP. At 5% rate of return compounding annually, would produce a total of $499,355 at age 60. If we assume a 30% marginal tax rate on their income, their RRSP contribution would produce a tax refund of $2,160 or $180/monthly. Since there is no more room in the RRSP. These funds will have to be invested in a nonregistered account, ($180/m x 30yrs x 5% less 30% tax) producing a further $114,374. In this scenario, the total accumulated by age 60 would be $613,729. Against this would be the interest cost for the mortgage of $111,722 for a net gain of $502,007. Applying the rebate as a prepayment to the mortgage: A mortgage of $150,000 amortized over 25 years at 5% would result in a monthly payment of $872.41. If we assume a 30% marginal tax rate on their income, their RRSP contribution would produce a tax refund of $2160 or $180/monthly. (For illustration purposes, I will use the monthly equivalent to keep everything on a monthly payment basis.) If the rebate is applied to the mortgage, it is the equivalent of a monthly payment of $1,052.40, which would retire the mortgage in about 18 years (actual payment would be $1051.41). At Age 60, the investor would have the following... RRSP ($7,200 [$600/mo] x 30yrs x 5%) totaling $499,355 NonRRSP investment [Mortgage payment available once mortgage retired] ($1051/mo x 12yrs x 5% @ 30% marginal tax rate) totaling $187,750. In this scenario, the total accumulated by age 60 would be $687,105. Against this would be the interest cost for the mortgage of $76,866 for a net gain of $610,239. Apply the full RRSP contribution to prepaying the mortgage: Mortgage payments would be $872.41 + $600.00 or $1,472.41/mo. Which would see the mortgage retired in about 11 years. (Actual payment would be $1,475.87) That would leave 19 years in which to invest in the RRSP ($7,200 [$600/mo] x 19yrs x 5%) for a total of $227,608. The investor would also be able to invest the difference between the mortgage payment of $1,475.87 and 