Dear Liz: I would like to know how best to use a $100,000 inheritance. I am a stay-at-home mom, age 46. My husband, 42, earns $100,000 a year.

We owe $132,000 on our house and have no other debt. We pay off our one credit card in full monthly. He puts the maximum into his 401(k). We have two sons, ages 5 and 8.

Should we use the money to pay down our mortgage? I’m not interested in saving for college. We will be retiring about the time the kids are ready for college and we plan to have them take out student loans.

Answer: If you can save for college, you probably should.

College costs show few signs of moderating, so your older child might face a bill of $140,000 for an in-state public college or $200,000 or more for a private or selective public college. The cost for your younger child will be even higher. If they borrow the entire cost, they’re likely to remain financially disadvantaged for years. Students who overdose on loans often can’t save enough for retirement and delay starting families and buying homes because of their debt. Anything you save for them could reduce that terrible burden.

You also might want to rethink the idea of retiring when they start college. Even if your husband has been maxing out his retirement fund, it’s unlikely he’ll have saved enough by age 52 to last the rest of your lives, particularly if you have to start paying for health insurance on your own. (Medicare isn’t typically available until you’re 65.)

You didn’t mention savings. Most people should have an emergency fund equal to three months’ expenses, but families with just one earner typically should shoot for six or even nine months’ worth.

In any event, you almost certainly have better things to do with your money than pay down low-rate, potentially tax-deductible debt such as a mortgage.

A better approach might be to divide your inheritance into thirds, investing a third into an emergency fund, a third into your boys’ educations and a third into retirement funds.

A visit to a fee-only financial planner could help you sort through your options and clarify your goals.

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