Why your credit score matters comes down to price and access: that three-digit number sets what you pay to borrow, often what you pay to insure a car or a home, whether a landlord rents to you without an inflated deposit, and sometimes whether an employer moves forward with an offer. On a $350,000 thirty-year mortgage, the gap between excellent and poor credit works out to roughly $64,800 in extra interest. The score touches almost every major financial decision you’ll make, and a lot of small ones too.
What It Costs You on a Loan
Lenders price loans in tiers. The higher your score, the lower your rate, and the differences are not small.
On that same $350,000 thirty-year fixed mortgage, a borrower with a FICO score of 840 recently qualified for an average rate of 6.20%, while a borrower at 620 faced 7.17%.1Experian. Average Mortgage Rates by Credit Score The lower-score borrower pays about $180 more every month, which adds up to roughly $64,800 in additional interest over the life of the loan. And a score under 620 often shuts you out of conventional mortgages entirely; 620 is a common floor. FHA loans go as low as 500, but require a 10% down payment at that level.
Auto loans show an even sharper split. Borrowers with scores above 781 pay an average of 5.18% on a new car, while subprime borrowers between 501 and 600 pay 13.22%, and deep subprime can hit 15.81%.2Experian. Average Car Loan Interest Rates by Credit Score On used cars the spread is wider: 6.82% for excellent credit against 18.99% for subprime. Personal loans follow the same pattern, with double-digit rates common for anyone showing missed payments.
Every one of these gaps is real money, month after month, for years.
Renting a Home
Most landlords pull a credit report when you apply. A weak score doesn’t always mean an outright rejection, but it usually means paying more upfront. Property managers commonly ask for a larger security deposit when an applicant’s report shows late payments or collections. In many markets that means two months’ rent instead of one before you can move in.
If your credit is thin or damaged, a rent reporting service can help. These services add your on-time rent payments to your credit file at one or more of the three national bureaus. Some landlords participate at no cost to tenants; if yours doesn’t, you can enroll independently, though most third-party services charge setup and monthly fees. Before signing up, confirm the service reports to all three bureaus, and find out how late or missed payments are handled, because some services report negatives along with positives.
Insurance Premiums
Auto and homeowners insurers in most states use credit-based insurance scores to help set your premium. These aren’t identical to your lending credit score, but they draw from the same underlying report data. The industry’s position is that actuarial research shows a correlation between financial habits and the likelihood of filing claims. In practice, two drivers with identical driving records can pay meaningfully different premiums based purely on their credit profiles.
Not every state permits this. Seven states — California, Hawaii, Maryland, Massachusetts, Michigan, Oregon, and Utah — prohibit or heavily restrict insurers from using credit-based scores for auto or homeowners coverage. The specifics vary. Some ban credit use in rate-setting entirely; others only prevent insurers from canceling or refusing to renew a policy based on credit. If you live in one of those states, your credit won’t affect your premiums in the restricted lines.
Job Applications
Employers in fields involving financial responsibility, security clearances, or access to sensitive data sometimes review credit reports as part of background screening. The reasoning is that serious financial distress can make someone more vulnerable to fraud or bribery.
Federal law builds in real protections. An employer has to give you a standalone written disclosure that a credit report may be pulled, and you must authorize it in writing before they can access it.3Office of the Law Revision Counsel. 15 USC 1681b – Permissible Purposes of Consumer Reports If the employer decides not to hire you based even partly on what the report shows, they have to give you a copy of the report and a written description of your rights before making the decision final. That gap is your window to catch errors and respond.
Beyond the federal baseline, roughly a dozen states plus several cities restrict or ban employers from using credit history for most hiring decisions, typically leaving exceptions only for fiduciary roles or law enforcement. New York’s statewide ban takes effect in April 2026. If you’re job hunting and worried about your credit, check whether your state has one of these laws on the books.
Utility Deposits
Credit checks aren’t limited to big-ticket decisions. Gas, electric, water, and telecommunications companies routinely check your credit before activating service.4Federal Trade Commission. Getting Utility Services: Why Your Credit Matters If your report shows a poor payment history, the utility will likely require a deposit before turning anything on. These typically run $100 to $250 per provider. When you’re setting up electricity, water, gas, and internet at the same time, they stack fast.
Most utilities return the deposit after about 12 months of on-time payments. It’s a short-term cost, but it hits hardest at the worst moment, when you’re also covering moving expenses and a rental security deposit.
How to Check Your Report and Fix Mistakes
You’re entitled to one free credit report every 12 months from each of the three national bureaus, Equifax, Experian, and TransUnion, through AnnualCreditReport.com, the only site federally authorized for this purpose.5Annual Credit Report.com. Getting Your Credit Reports All three bureaus also currently offer free weekly reports online. Checking at least one bureau every few months means you catch problems early, not when you’re already at a closing table.
If you find an error, file a dispute with the bureau reporting it. The bureau generally has 30 days to investigate, extending to 45 days if you filed after receiving your free annual report or if you submit additional documentation during the investigation.6Consumer Financial Protection Bureau. How Long Does It Take to Repair an Error on a Credit Report Within five business days of finishing the investigation, the bureau has to notify you of the results and send you an updated report at no charge. The underlying federal law is the Fair Credit Reporting Act, which requires consumer reporting agencies to follow reasonable procedures for accuracy, fairness, and privacy.7Office of the Law Revision Counsel. 15 USC 1681 – Congressional Findings and Statement of Purpose
How Long Bad Marks Actually Stick
Most negative information drops off your report after seven years. That covers late payments, accounts sent to collections, charged-off debts, civil judgments, and paid tax liens.8Office of the Law Revision Counsel. 15 USC 1681c – Requirements Relating to Information Contained in Consumer Reports The seven-year clock for collections runs from the date of the first missed payment that led to the delinquency, not from when a debt collector bought the account.
Bankruptcy is the exception. Chapter 7 and Chapter 13 filings can remain on your report for up to 10 years from the date the court entered the order.9Consumer Financial Protection Bureau. How Long Does a Bankruptcy Appear on Credit Reports The score impact fades well before the 10-year mark if you build positive history in the meantime. Waiting passively for old marks to fall off is usually the slowest way back. Opening a secured card and using it responsibly rebuilds a score much faster.