What to Know About Length of Credit History Before You Act

Why Age Matters to Scoring Models

Length of credit history is one of the standard ingredients in credit scores — typically around 15 percent of a FICO score. It measures how long your accounts have been open: the age of your oldest account, the age of your newest account, and the average age across all of them. Lenders like to see a track record, and scoring models treat a longer history as more evidence of how you handle credit.

What “Long” Actually Looks Like

There is no published threshold where history suddenly counts as long enough. Generally, files with several years of open accounts score better in this category than files opened six months ago. But age alone never carries a score — a ten-year-old file with late payments loses to a three-year-old file with a perfect record. Age amplifies the pattern; it does not replace it.

Average Age: The Number That Moves

Opening a new account lowers your average account age, because the new account’s age of zero drags the average down. Closing your oldest card can hurt twice: it eventually removes your longest-standing account and it shrinks your available credit. This is why people are often advised to keep old, no-fee cards open even if they rarely use them — a small recurring charge keeps the account active and aging.

Closed Accounts Don’t Vanish Immediately

A common worry is that closing an old card erases its history. In practice, closed accounts in good standing typically remain on your credit reports for up to ten years, continuing to contribute their age during that time. The history fades gradually, not overnight. Still, the utilization hit from losing the credit limit is immediate, so weigh both effects before closing.

Building History From Scratch

If your file is young, time is the main ingredient — and it cannot be rushed. What you can do: open accounts you will keep for the long term, avoid churning through cards, and consider becoming an authorized user on a family member’s long-standing account in good standing (their history can appear on your file). Then let the months do their quiet work.

The One Thing That Beats Age

A spotless payment record on a young file outperforms a checkered record on an old one, every time. If you are choosing where to focus, on-time payments win. Length of history rewards patience and consistency — open accounts thoughtfully, keep the good ones, pay on time, and your file ages in your favor.

This article is general information, not financial advice. Scoring weights vary by model and version.