The five things that move your score
Okay. Last lesson we talked about why the score exists at all — that it's basically a lender's shorthand for "how risky is this person, probably." This lesson is the mechanics. What actually moves the number.
There's five things. I want to go through them in order of how much they matter, because people spend a lot of energy on the wrong one.
1. Payment history — about 35%
This is the big one. Do you pay on time, basically every time.
Not "do you pay in full." On time. A late payment, even a small one, does more damage to your score than carrying a big balance responsibly. One missed payment can sit on your report for years.
This is also the one that's the least complicated to control. You either pay by the date or you don't. I'll get into autopay and reminders in a later lesson — I've got a whole embarrassing story about autopay failing me anyway, we'll save that — but for now just know: this is 35% of the formula and it's the most "in your control" 35% there is.
2. Amounts owed / utilization — about 30%
This is how much of your available credit you're actually using. If you've got a card with a $2,000 limit and you're carrying $1,600, that's 80% utilization, and that's going to hurt you even if you're paying on time.
Rule of thumb — and I say rule of thumb on purpose, because the exact math on how this gets calculated across multiple cards versus your total across everything gets into the weeds, and honestly I look up the edge cases every time myself — keep it under 30% if you can. Lower is better. Some of the "excellent credit" folks are sitting at like 5-8%.
This is the one people misunderstand the most. It's not about whether you carry a balance month to month necessarily, it's a snapshot of how much of your available credit is being used when the statement cuts.
3. Length of credit history — about 15%
How long you've had credit, average age of your accounts, that kind of thing. This one you can't really hack — well, I don't love that word, let's say you can't really speed it up. It's just time.
This is actually the whole argument against closing your oldest credit card even if you don't use it much anymore. Closing it doesn't erase the history immediately, but eventually it can shorten your average account age. I know a lot of people who close a card out of principle — "I don't use it, get rid of it" — and I get the instinct, I just want you making that choice on purpose, not by accident.
4. Credit mix — about 10%
Do you have different types of credit — a card, a car loan, maybe a mortgage down the road. Having a mix helps a little. This is the smallest lever and I don't want anyone opening a loan they don't need just to "improve their mix." That's backwards. Nobody should ever take on debt to optimize a number. More on that in a second.
5. New credit — about 10%
Every time you apply for something, it can ding you a little, temporarily. Opening five cards in six months looks different to a lender than opening one thoughtfully. This one's pretty intuitive once you hear it — it's just, don't go on a shopping spree of applications.
---
Okay so here's the opinion, and I've said a version of this already but I want to say it straight here: the score is a side effect, not the goal. If you get payment history and utilization right, the number takes care of itself. I feel like people over-index on the number itself — they get anxious about a three-point drop, or they open a card they don't need because someone told them it'd "help their mix" — and that's backwards. Chase the habits. The score follows.
I'll be honest about where this clicked for me. I was 27, sitting at my kitchen table with three credit card statements printed out — I couldn't stand looking at the numbers on my phone, needed them on paper in front of me — and I did the actual math on what I owed instead of the number I'd been carrying around in my head. Turned out I owed about $1,800 more than I thought. Not because I was hiding it from myself on purpose. I just hadn't ever added it up. That gap between the real number and the story I was telling myself — that's utilization and payment history quietly doing their thing in the background while I wasn't looking. Once I actually understood what those five categories were doing, the whole thing stopped being scary. It just became math. Boring, knowable math.
That's really the whole pitch for this module. Once you see the five levers, you stop being afraid of the black box.
Before next time: pull up your own credit report (we'll do this together properly in a couple lessons, no worries if you haven't yet) and just see if you can guess, for yourself, which of the five categories is probably your weakest one right now. Don't fix anything yet. Just notice.