Dear Liz: I am wondering about what percentage of your income should your rent be. Ours at the moment is 35% just for rent, not including utilities or anything else.

Answer: In high-cost areas, people regularly pay 40% or more of their income on housing. That doesn’t mean it’s a good idea.

When you spend a big chunk of your income on rent or mortgage payments, there’s often too little left over to save for the future, pay off the debt of your past and live for today.

There are no hard-and-fast rules for what’s affordable, but limiting your housing costs to about 25% of your gross pay or 30% of your after-tax pay will help ensure that you have money left over for other goals. “Housing costs” include rent, utilities and renter’s insurance if you don’t own, or mortgage, property taxes, property insurance and utilities if you do.

If you’re much over these limits, you should look into ways to reduce your costs, earn more income or both. Otherwise, you’re likely to continue to struggle with an unbalanced budget.