Pay yourself first. IMO the only time it makes any financial sense to postpone retirement funding to pay off debts is when you’re facing imminent foreclosure or having your wages garnisheed, when surviving the present is more important than planning for the future. Never when you can actually afford the payments.
You cannot make up for lost time in earning compound interest for retirement. If you postpone or suspend a pre-tax plan like a 401(k) you have to pay money in taxes now instead of leaving it invested to earn compound interest for the next 30 to 40 years, and that money doesn’t go to pay down your debt either.
It will be even worse if you give up any available employer matching payments. You can’t pay bills, buy stuff, reduce debt, or earn compound interest on extra income you choose not to ever receive.
Time is an exponential factor in earning compound interest on investments and in determining the total interest on a loans.
You will lose far more retirement earnings by postponing retirement contributions for a few months than you will save in interest by paying the same money on a short-term debt, even if its rate is a lot higher. And almost all debts are short-term compared to the time you should be contributing to retirement.
If I were in your shoes, I’d tighten up my budget and try to pay off one of those car loans PDQ to give me more elbow room in my budget. But NOT postpone any retirement contributions to do it.
Here’s an example of how much it can cost you to postpone retirement contributions.
Let’s assume you were considering putting an extra $300 per month into a 401(k), or using it to pay down the car loans. I’ve made guesses about the time remaining and combined the two debts for illustration, but this is quite similar to how your results would be.
If the $300/mo. is to be redirected to debt reduction instead of to retirement funding, and the combined fed and state tax bracket is 31%, the first $93 per month will have to go to pay income taxes that are no longer deferred. So you are also losing the exponential growth in compound interest, the Future Value for that pre-tax $93 per month, and it is not paying down your debt either.
If you were paying $474.30 per month on a total debt of $20,000 at 6.5% it would take 48 months to pay it off. The total interest paid would be $2,766. Paying the after-tax $207.00 extra per month will pay it off in about 32 months, saving $926 in interest and cutting 16 payments.
If you can earn a conservative 7.% on $300 per mo. for the entire 384 months, your retirement fund in 32. years will be worth $431,023.
Delaying your retirement contributions for 32 months leaves 352 months during which you can invest the $300 per month. In this case, at retirement 32. years from now, your retirement fund will be worth $349,038.
Unless you invest more money out-of pocket later, your loss at retirement will be: $81,986…
Something most folks overlook is that you don’t stop earning compound interest at retirement time. Even with no more contributions, chances are you will earn more after retirement than you did before retirement.
For example, if you did not take any of the principal out, at 5% that $81,986 could earn $342 per month in interest. So if you were to live for 30 years after retirement, you would come up short by the $81,986 before retirement, plus lose $122,978 in interest that it could have earned after retirement, for a total lifetime loss of $204,964.
That is in exchange for saving $926 in interest and 16 months of debt now. It is giving up $221.44 of your lifetime income for every dollar you save on the debt. $12,810 out of your retirement for every extra month you cut from the debt now.
In 30+ years of talking with people and helping with the math of debt reduction versus investments, I’ve never met anyone who paid off all their debts just so they could start re-investing every single freed-up payment. They eliminate debts to get rid of the payment so they’ll have more money for daily living.
But regardless of how people budget and pay off debts in the real world, there are people who still insist that you MUST re-invest every single freed-up payment.
However, there are limits to how much you are allowed to contribute to a pre-tax retirement plan in a given year. It’s usually set as a percentage of your salary by your employer, and there is a maximum per year set by the IRS.
So if you were contributing the max as you should have been doing already, you won’t be able to invest enough more pre-tax money to catch up later. Besides, it usually won’t work or won’t give much difference even with pre-tax catch-up money. And you almost always come out worse if you miss more than a few weeks or skip a single freed-up payment or two for re-investing during the original period of the debts you were eliminating.
Anyway, here’s how it could work if you did re-invest every single freed up payment, and assuming that you are investing after-tax money with the freed-up payments because you were already maxing your pre-tax opportunities:
At 7.%, earnings until retirement, the BEST CASE for delaying retirement contributions for 32 months to pay off the loan, including re-investing the 16 ‘freed-up’ loan payments, is the difference between the normal $431,023 and $405,342 which is a loss at retirement time of $25,681.
At retirement time, the interest alone on the $25,681 at a more conservative 5% would have been $107 per month. If you live 30 more years, the loss of monthly interest after retirement would be 107 x 360 = $38,521.
So you would lose the initial $25,681 that you won’t have at retirement plus the $38,521 in interest that it won’t earn after retirement, for a total lifetime loss of $64,202.
That is still paying $69.36 out of your future retirement income for every dollar you avoid paying on that debt now.
Or $4,013 of your future retirement fund for every extra month you eliminate from the debt now.