Score movement comes from five inputs, weighted roughly:
- Payment history — 35%
- Credit utilization — 30%
- Length of credit history — 15%
- Credit mix — 10%
- New credit / inquiries — 10%
The fast lever: utilization
Payment history is the biggest factor, but it's also the slowest to fix - you can't undo a late payment from a year ago, you can only stop adding new ones. Utilization is the fastest mover. If you carry $4,000 across cards with a $5,000 total limit (80%), paying that down to $1,000 (20%) can lift your score 30 to 50 points within one statement cycle.
The trick most people miss: pay before the statement closes, not just before the due date. The bureaus see whatever balance is reported on the statement date, which is usually three to four weeks before your due date. Pay early enough and the reported balance is low; pay only by the due date and the reported balance can still look high.
Other practical moves
If you have a parent or spouse with an older credit-card account in good standing, ask to be added as an authorized user. The age of that account starts feeding into your length-of-history calculation. If you only have credit cards, adding one installment loan (auto, personal, credit-builder loan from a credit union) improves your credit-mix score. If you're inquiring around for a mortgage or auto loan, do it inside a 14-day window so the inquiries are bundled into one for FICO scoring.
For more depth, see our practical guide and the Houston credit repair walkthrough.