What it means
A credit file is the record a credit bureau keeps of a person's accounts and payments. A thin file has few entries, and the usual causes are youth, a recent move to a new country, or a habit of paying in cash and by debit card.
Thin is not the same as bad. A bad record shows missed payments or defaults, while a thin record simply shows little, so a lender has less to go on and may decline, ask for a deposit, or charge more.
The Consumer Financial Protection Bureau, a US regulator, separates three groups in a 2015 research report. Credit invisible consumers have no record at the big bureaus, and unscored consumers have a record a commercial scoring model cannot score.
A thin file often falls in the second group, because there is too little history to score. That report splits unscored records into two kinds: an insufficient record has too few accounts, and a stale record has no recently reported activity.
The report's data is from 2010, so treat it as a dated snapshot. The CFPB estimated 26 million US adults were credit invisible, about 11 percent, and another 19 million, about 8 percent, had records that could not be scored, split almost evenly between insufficient and stale.
A lender who cannot score you may decline a loan or offer worse terms, and the effect depends on the lender. Thin files can be filled out over time: opening an account that reports to the bureaus, using it lightly and paying on time adds history.
Check that the account really reports, since not every lender does. A thin file also carries a practical risk.
With little data, one error or one late payment weighs more. It helps to read the credit report and correct mistakes early.
In practice
Real-world examples.
Example
A fictional 19-year-old has one student credit card opened four months ago. The file has one account and almost no history, so a lender's model may not score it. The fix is time and on-time payments, not a high income.
Example
A fictional professional moves to a new country with a long record elsewhere. The new country's bureaus have no file, so the person starts thin even though the history is good. A lender may ask for a deposit or a larger down payment.
Example
A fictional shopper pays for everything in cash and has never borrowed. Her file is empty, so she is credit invisible, which is one step below thin. Opening one reporting account would start a record.
Formula
Calculation
There is no formula for a thin file. The CFPB's 2010 count of people who could not be scored was about 19 million, split almost evenly between insufficient and stale records, and its count of credit invisible adults was about 26 million.
Share of adults = count / adult population x 100. Using the report's rounded figures, 26 million of about 234 million adults is 26 / 234 x 100 = about 11%, and 19 million of about 234 million is 19 / 234 x 100 = about 8%.
Illustration of building a record. A person opens a card with a $1,000 limit and puts one $50 bill on it each month, paying it in full. Each statement shows a balance of $50 against a $1,000 limit, which is $50 / $1,000 x 100 = 5% of the limit in use. After twelve months the file shows twelve on-time payments on one open account, which is real history a lender can read, though it is still a short record.Case study
Seen in the real world.
This case study is fictional and illustrative. Noor is 22 and has a debit card and a phone plan, but no loan or credit card. A lender declines her first car loan because her file is too thin to score. She opens a small credit card, uses it for one bill each month and pays it in full. She checks her credit report after a few months to make sure the account is reporting and the details are right.
Within a year she has a record a lender can score, and the same lender now offers a loan. She did not earn more. She simply gave the lender something to read. The lesson is that a thin file is a data problem. Build a record on purpose, keep it clean, and check it for errors, since a small file has little room for mistakes.
Watch out
Common mistakes.
- Treating a thin file as a bad credit history, when it shows little and not misconduct.
- Opening many accounts at once to fill the file, which adds new accounts but no real history.
- Assuming every account builds history, when some lenders do not report to the bureaus.
Questions
People also ask.
What is a thin file?
It is a credit record with too few accounts or too little history to judge risk well. It is common for young adults and new arrivals in a country.
Is a thin file the same as no credit history?
No. A thin file has some entries. Someone with no record at all is called credit invisible by the CFPB.
How can I thicken a thin file?
Open an account that reports to the credit bureaus, use it lightly and pay on time. Check that it appears on your credit report.
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