What credit score do you start with?

No score is not a score of zero

The idea of a starting score comes from thinking of credit like a bank balance that begins empty and fills up. Scores do not work that way. A credit score is a calculation run on the file a bureau holds about you, and if the file is empty, or too thin for the model, there is nothing to calculate. The result is not zero. It is no score at all.

That distinction matters because zero is not even on the scale. Base FICO Scores run from 300 to 850, and the CFPB notes that most credit scores sit in that same range. A lender who looks you up and finds no score does not treat you as a 300. It treats you as someone it cannot score, which is a different problem with different fixes.

Nor is there a default number your first score starts from and climbs away from. When you finally do get one, it is worked out from whatever your file contains at that moment, the same way it would be for someone with twenty years of history. The file is just shorter.

What FICO needs before it will score you

FICO spells out its minimum. To generate a FICO Score, you need at least one account that has been open for six months or more, and at least one account that has reported to the credit bureaus within the last six months. One account can meet both conditions. Until both are true, a FICO model returns nothing for your file.

The second rule surprises people who once had credit. myFICO says a lack of recent activity can mean you no longer meet the minimum scoring criteria. Someone who paid off their last card years ago, closed it and has borrowed nothing since can find they have no FICO Score at all, even with a spotless old record. The history is still in the file. The model just wants something recent.

These are FICO's rules. Apps that show you a VantageScore use a different model, so if one of them gives you a number before your FICO Score exists, do not assume a lender will see the same thing. The CFPB is plain about this: you do not have just one credit score.

What the first score depends on

Your first FICO Score is built from the same five ingredients as everyone else's, often summarized for the general population with these weights: payment history 35%, amounts owed 30%, length of credit history 15%, new credit 10% and credit mix 10%. What changes for a newcomer is how much each one has to work with.

Length of history is short by definition, and anything you opened in the last few months counts as new credit, so two parts of the score start out against you and only time fixes them. Credit mix is thin too if you have one card. That leaves the two biggest parts, payment history and amounts owed, as the ones you control from the first statement.

With one account, that account is your entire payment history. A late payment on it is not one blemish among many good records; it is the record. The same goes for balances. If your only card reports a balance close to its limit, the FTC's warning that balances near the limit will probably hurt your score applies to your whole file, not to one corner of it.

Which is why it is a mistake to hunt for a magic number for a first score. Two people who open their first card on the same day can come out far apart six months later, and different bureau files, account details and reporting dates can produce different results.

How to get scored without paying for it

You do not need to pay a service for a starting score. The account or product used to establish history may still have fees or deposit requirements. Most of what is sold as credit building speeds up nothing that the six-month clock controls.

1. Open one account that reports to the bureaus. A card is the usual choice. Before you apply, ask the issuer whether it reports to all three bureaus, because an account that never reaches your file does not count toward FICO's minimum.
2. Apply for one thing, not several. The FTC says too many recent applications could hurt your score, and in a brand-new file there is nothing older to offset them.
3. Use it lightly and pay the statement in full. A small purchase each month keeps the account active and reporting. A balance near the limit is the fastest way to start with a weak score.
4. Let six months pass. Nothing shortens FICO's clock. A second or third account opened in month two does not make the first one older.
5. Check that the account shows up. Your reports from all three bureaus are free at AnnualCreditReport.com. If the account is missing from one, your score at that bureau may not exist yet even after six months.

Rent is the tempting shortcut. FICO Score 9 counts rental history when it is reported, but myFICO also names FICO Score 8, which does not, as the version most widely used by lenders. And the CFPB found that only about 1.7% to 2.3% of adults in rental housing have rent showing in their credit files at all. If a service asks you to pay to report your rent, weigh that against the fact that many lenders will never see it in the score they use.

When the first number arrives

Do not panic if your first score lands in the 600s. A new file is short on two of the five ingredients by design, and those two (age and newness) improve by themselves as long as payments stay clean. The scores that open real doors are not far off: 620 is where published mortgage rate bands begin, and 670 is where FICO's Good range starts.

The bigger risk in the first year is impatience. Opening several cards to build faster adds inquiries and new accounts to a file that has nothing to balance them. One well-run account and a few months of waiting is the better bet than five accounts opened at once.