Liz Weston

Dear Liz: I sold my house, paid off my mortgage and then got a new mortgage for another home in 2021. When I applied for the new mortgage, my credit score was 830. After buying the home, my score dropped to the low 700s. It’s gone up only 2 points in seven months. I have no other debt. What’s going on?

Answer: Remember, you don’t have one credit score, you have many. When you applied for a mortgage, you typically would be shown three older-generation FICO scores — one from each of the three major credit bureaus (Equifax, Experian and TransUnion). Your interest rate would have been based on the middle number. If your scores were 840, 830 and 700, for example, your rate would be based on 830. Any score over 740 typically gets the best rate and terms on a mortgage, all else being equal.

The score you’re monitoring now was probably created from a different scoring model. If the score is a FICO score, it probably was created from an updated formula such as FICO 8 or FICO 9. It’s also possible that you’re viewing a VantageScore 3.0 or 4.0. VantageScore is a FICO competitor.

If you’ve been monitoring the same score all along and it actually dropped 100 points since your application, then something else is going on. Please check your credit reports from all three bureaus and look for a skipped payment, a collection or some other serious problem.