The Credit Score Formula: Explained

The Credit Score Formula: Explained

Credit scores play an incredibly important role in our lives yet few of us truly understand where they come from and how they’re calculated.

Credit scores are provided by three primary credit repositories: Experian, Equifax and Trans Union. These are basically huge databases that house credit information on almost everybody in the country. And how do they get all this information about us? Well, creditors (like credit card, automobile and mortgage companies) are always looking for information about potential clients; people like you and me. They get that information from these repositories but in exchange, they agree to provide data about all their customers back into the same databases. Almost all of your credit providers report your payment history into these databases and every time you obtain a new credit account, that account is reported under your Social Security Number.

It’s amazing the number of things in our lives that are affected by our credit scores, so understanding of the factors that are used in calculating your score can be incredibly beneficial for those who want to optimize their scores.

The Basics

Let’s start with a definition. What is a credit score actually trying to reflect? The exact thing a credit score intends to predict is the probability that you will not be able to repay your debts, at least in a given time. As you can imagine, there are a number of things that increase the probability you’ll have a late payment and those are the variables that make up your credit score. Now, the formulas and algorithms being used these days are incredibly complicated and they change periodically as well, so it’s impossible to lay out the exact components and their respective weights. But the basic structure is well documented and that’s what we’ll focus on here.

First, you should know that the median credit score in this country is right around 720. That means half the population has a higher credit score and other half has a lower score. It’s actually just a bit higher than 720 – about 722 is the latest I’ve heard. So the average person in this country has pretty darn good credit. In fact, only about 1% of the population has a score below 500.

We should also mention that there are actually 10 different score cards that calculate credit scores. They’re each designed to evaluate a different set of circumstances. Are you young with only very recent credit history? If so, that’s one of the score cards and it focuses on different metrics than the score card for someone who’s had a 30-year credit history. Do you own a house and have mortgage debt? That’s reflected in different score cards as well. Have you ever declared bankruptcy? That’s an entirely separate score card also – and the strictest one of the bunch, by the way. There’s no question that you should avoid bankruptcy however possible, because it’ll put you on the bankruptcy score card for seven to ten years – and that’s not a good place to be. Bankruptcy should be the absolute last option.

And lastly, before we look at how the scores are calculated, we need to discuss the fact that each of the three credit repositories has its own score. We’re all familiar with the FICO score – everybody refers to the credit score as the FICO score, but that’s only Experian’s version of the credit score. Equifax has the Beacon score and Trans Union has the Classic score. Although they’re all quite similar, they’re each calculated slightly differently. It’s also important to understand that our creditors don’t necessarily give our credit information to all three repositories so they may each have slightly different information, resulting in different scores. In the mortgage business, the middle score is always used – not the highest, not the lowest, but the middle credit score.

Scoring Method

Okay. So for your credit score, the single biggest component is your Payment History. It accounts for a full 35% of your total score, so making your payments on time is the best thing you can do to keep your credit score healthy. Within Payment History, the repositories look at (1) recency, (2) frequency and (3) severity. If you’ve had two 30-day lates in the past six months, that’s a lot worse than two 30-day lates a year or two ago. In fact, they consider the most recent six months the most, followed by the past two years and then anything after that. The more recent, the bigger the effect on your score. Obviously, a 60-day late is worse than a 30-day late, and a 90 day late is worse than a 60-day late.

The second biggest component of your credit score is Revolving Balances; that’s the outstanding balances on your tradelines – your credit cards. Your Revolving Balances account for 30% of your total score. So, between your Payment History and your Revolving Balances, we’ve already covered 65% of your total score. These are the pillars of your score – by far, the most important.

Obviously, the higher your balances, the lower your score. It makes sense if you think about it. If your balances are really high, there’s a higher probability you’ll have a 90-day late in the next 24 months. And the repositories calculate your balances on both individual accounts as well as aggregated across all your accounts. So while there may be some small benefit spreading your balances around on different credit cards, it won’t make a big difference overall. The best thing you can do is pay your balances down.

It’s worth noting your credit score has absolutely NO memory regarding balances. So if you’ve got a high balance today and you pay if off tomorrow, your credit score could be substantially higher tomorrow. It’s also worth noting your creditors do NOT report your balances every day or even every week. Most report once each month and the day they pick may or may not coincide with your statement date. So the balance reflected on your credit report may NOT match the balance reflected on your most recent statement. Anyway, your score is calculated at the time it’s requested so it’ll reflect the information in the database at that moment in time. If your balances are high, your score will be lower. If your balances are low, your score will be higher.

The next biggest component is your Credit History. It accounts for 15% of your score. So between your Payment History, Revolving Balances and your Credit History, we’ve now accounted for a full 80% of your score. Your Credit History looks at the age of your oldest account and the number of new accounts opened recently. Again, the logic makes sense. If someone’s opening a whole bunch of new accounts, there’s no history to see how he or she will deal with all these new accounts. So with these new unknowns, the risk level goes up and the credit score goes down. It’s never a good idea to open a bunch of new accounts. From the perspective of your credit score, it’s good to have between five and seven accounts but if you don’t have that now, don’t try opening them all up at once.

Next on the list is the Type of Credit. This accounts for 10% of your credit score. Type of Credit looks at both open AND closed accounts. It looks at the type of credit you use and how many accounts of each you have, or have had. The three major types of credit are (1) revolving, (2) installment and (3) mortgages. One subcategory, under the label of revolving, hits your score harder than the rest- the finance company installment accounts. These accounts are the “no payments for 12 months” type of accounts. You know the ones. Buy now, pay later. The credit repositories know what they are as well, and they know the risk of a 90-day late increases when someone goes out and buys all kinds of furniture and flat-screen TVs without having to pay anything for it. Avoid these types of promotions whenever possible.

The last component of your credit score is the Number of Inquiries. Inquiries account for the final 10% of your credit score. Now, there are two types of inquiries, as we will refer to them here. We all get tons of credit card offers in the mail. Well, each of these companies checked our credit before sending us their offers. But don’t worry; they’re not considered in our credit score. They’re called Soft Inquiries because we didn’t request the credit. Many people worry when they get these offers that all these inquiries are reducing their credit scores but that is NOT true.

The second kind of inquiry is a Hard Inquiry. That’s where you signed something authorizing a company to check your credit because you’re applying for a new credit account. So every time you apply for a new credit card or try to buy a car or a house, those are all Hard Inquiries. Only these inquiries are considered in your credit score. Generally speaking, you should limit the number of inquiries to 5 to 7 per year. Yeah, that’s PER YEAR. 5 to 7 per year. Your credit score will look at the most recent 12 months and each individual inquiry can affect your score by 5 to 15 points, depending on the type of credit applied for.

Now, when we’re shopping for a car or a mortgage, we frequently consult with multiple places before we make our final decision. We might visit three or four different car dealerships. We might speak with two or three different Mortgage Bankers before submitting our loan application. The credit bureaus know this and they’ve adjusted their algorithms accordingly. For auto inquiries, you can have an infinite number of inquiries within a 14-day window and they will all count as a single inquiry. For mortgage inquiries, you can have an infinite number of inquiries within a 45-day window and they’ll all count as a single inquiry. So don’t worry about speaking with multiple people. That, in itself, will not reduce your credit score.

The science of credit scoring already extremely complicated and it continues to evolve. Even now, your credit score is an amazingly accurate assessment of your character. That’s one of the reasons income and asset documentation has become less important. Bottom line; if you have a good credit score, lenders know there’s little risk you’ll let them down.

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