What a bank actually looks at when you ask for a loan
When you walk into a bank asking for a loan, you are not asking the bank to give you money out of kindness. You are asking them to lend you their depositors' money — money that belongs to the people with savings accounts there. The bank's job is to figure out whether you will pay it back, because if you do not, the bank has to cover the loss from its own reserves, which means less money available for other customers and lower returns for shareholders.
Banks use a system called underwriting to make this decision. An underwriter is a person (or increasingly, a computer program) who looks at your financial history and current situation to predict the risk. They are not trying to be difficult. They are trying to answer one question: if we lend you this money, what is the chance you will not pay us back?
The answer to that question determines three things: whether you get the loan at all, how much interest you pay, and what collateral (something you own that the bank can take if you do not repay) the bank requires. A person with a strong history of paying debts on time gets a lower interest rate and may not need collateral. A person with a weaker history pays more interest, or the bank declines the loan entirely.
Key Takeaways
- Banks look at your credit score, income, existing debts, and employment history to decide whether lending to you is safe.
- Your credit score is a number between 300 and 850 that summarizes how reliably you have paid past debts; most banks want to see at least 620 for an unsecured loan.
- You will need to prove your income with recent pay stubs or tax returns, and the bank will verify your employment by contacting your employer.
- The interest rate you receive depends on the risk the bank thinks you represent; lower risk means lower interest, higher risk means higher interest or denial.
- Different loan types have different requirements: a mortgage requires a down payment and a home appraisal, a car loan uses the car as collateral, and a personal loan may require collateral or a co-signer.
Your credit score: the number that opens or closes the door
Your credit score is a three-digit number between 300 and 850 that summarizes your history of borrowing and repaying money. It is calculated by three companies — Equifax, Experian, and TransUnion — using information from your credit report. Your credit report is a record of every loan you have taken, every credit card you have opened, every payment you made on time or late, and every time you defaulted or declared bankruptcy.
The score itself is built from five categories: payment history (35 percent of your score), amounts owed (30 percent), length of credit history (15 percent), credit mix (10 percent), and new credit inquiries (10 percent). Payment history is the heaviest weight because it is the strongest predictor of future behavior. If you have paid your bills on time for years, you are likely to keep doing it. If you have missed payments or defaulted, the score reflects that risk.
Most banks will not lend to someone with a score below 620 for an unsecured loan (a loan with no collateral). Some will go lower if you have collateral or a co-signer. Credit unions, which are member-owned financial institutions rather than profit-driven banks, sometimes work with lower scores. The higher your score, the lower the interest rate you will receive, because the bank is taking on less risk.
You can see your credit report for free once per year from each of the three bureaus at annualcreditreport.com. You can also see your score for free through many banks, credit card companies, and services like Credit Karma. Checking your own score does not hurt it, but when a bank checks your score as part of a loan process, that hard inquiry can lower your score slightly for a few months.
Income and employment: proving you can actually repay
A bank will not lend you money based on your word that you earn enough to repay it. They will ask for documentation. For someone with a regular job, this means recent pay stubs (usually the last two months) and often a W-2 form or tax return from the previous year. For someone who is self-employed, it means tax returns from the last two years, and sometimes a profit-and-loss statement.
The bank will also verify your employment by contacting your employer directly. They will ask whether you work there, what your position is, and whether you are still employed. Some banks do this by phone, others through a third-party verification service. This is a routine check — your employer expects it and it does not flag anything unusual.
What the bank is calculating is your debt-to-income ratio, which is the percentage of your monthly income that goes toward debt payments. If you earn $4,000 per month and you already have car payments, credit card payments, and student loan payments totaling $1,200 per month, your debt-to-income ratio is 30 percent. Most banks want to see this ratio below 43 percent, though some will go higher if your credit score is strong. The new loan payment will be added to this calculation, so the bank needs to see that you will still have money left over to live on.
Collateral and co-signers: what happens if you do not pay
A secured loan is one backed by collateral — something you own that the bank can take and sell if you do not repay. A mortgage is secured by the house itself. A car loan is secured by the car. A personal loan backed by a savings account is secured by that account. Because the bank has a way to recover its money if you default, secured loans have lower interest rates and are easier to get even with a lower credit score.
An unsecured loan has no collateral. The bank's only recourse if you do not pay is to sue you, report the default to the credit bureaus, and eventually send the debt to a collection agency. Because of this higher risk, unsecured loans have higher interest rates and stricter requirements. Personal loans, credit cards, and student loans are usually unsecured.
If your credit score or income is not strong enough on its own, you can ask someone else to co-sign the loan. A co-signer is a person who agrees to repay the loan if you do not. They are equally responsible for the debt, and if you miss a payment, the bank will pursue them for the money. Co-signers are common for first-time borrowers, people with limited credit history, and people with lower incomes. The co-signer's credit score and income are evaluated just as carefully as yours.
Different loan types, different requirements
A mortgage is the largest loan most people take, and it has the most detailed requirements. You will need a down payment (usually 3 to 20 percent of the home price), proof of income, a credit score of at least 580 (for an FHA loan) or 620 (for a conventional loan), and the bank will order an appraisal of the home to make sure it is worth what you are paying. The process takes 30 to 45 days and involves multiple documents: a purchase agreement, a title search, a home inspection, and an appraisal report.
A car loan uses the car as collateral, so the requirements are less strict than a mortgage. You will need proof of income, a credit score of at least 600 for most lenders, and a down payment (usually 10 to 20 percent). The bank will verify the car's value using a guide like Kelley Blue Book. The process is faster — usually one to three days — because there is less paperwork.
A personal loan is unsecured, so it has the strictest requirements relative to the amount borrowed. You will need a credit score of at least 620, proof of income, and a low debt-to-income ratio. Some banks will lend to people with lower scores if they have a co-signer or if they agree to a higher interest rate. The process is fast — often same-day approval — because there is no property to appraise.
A credit card is also unsecured, but the bank's risk is lower because they can raise your interest rate or lower your credit limit if you miss payments. Credit card companies are more willing to work with lower credit scores, though the interest rate will be higher. A secured credit card, backed by a cash deposit, is available to people with very low or no credit history.
What happens after you explore
Once you submit a loan process, the bank orders a hard pull of your credit report, verifies your employment and income, and runs you through their underwriting system. This takes anywhere from one day (for a personal loan or credit card) to 45 days (for a mortgage). During this time, do not explore for other loans or credit cards, because each process triggers another hard inquiry and lowers your score slightly. Do not make large purchases or open new accounts, because these change your debt-to-income ratio and may cause the bank to re-evaluate your process.
The bank will either approve you, deny you, or ask for more information. If they approve you, you will receive a loan offer stating the amount, the interest rate, the term (how many months you have to repay), and the monthly payment. Read this carefully. The interest rate and term determine how much you will pay in total. A lower rate or shorter term means less interest paid overall.
If the bank denies you, they are required by law to tell you why. Common reasons are a credit score that is too low, income that is too low relative to the loan amount, a debt-to-income ratio that is too high, or negative items on your credit report like late payments or collections. If you are denied, you can ask the bank to reconsider, explore with a co-signer, or wait and reapply after you have improved your credit score or paid down existing debts.
How interest rates are set
The interest rate you receive is not set by the bank alone. It is based on three things: the federal funds rate (set by the Federal Reserve), the bank's cost of borrowing money, and the risk you represent.
The federal funds rate is the interest rate that banks charge each other for overnight loans. When the Federal Reserve raises this rate, banks' costs go up, and they raise the rates they charge customers. When the Fed lowers the rate, banks lower customer rates. This is why mortgage rates and car loan rates change even if your credit score stays the same.
On top of the federal rate, the bank adds a margin based on the type of loan and the risk you represent. A mortgage might have a margin of 2 to 3 percent. A car loan might have a margin of 4 to 8 percent. A personal loan might have a margin of 6 to 36 percent. Within each category, your credit score determines where you fall. A score of 750 gets the lowest margin. A score of 620 gets the highest.
This is why shopping around matters. Different banks use different risk models and have different costs of borrowing. One bank might offer you 5.5 percent and another might offer 6.2 percent for the same loan. Over the life of a 30-year mortgage, that 0.7 percent difference means tens of thousands of dollars.
Frequently Asked Questions
What is the minimum credit score to get a bank loan?
Most banks require a credit score of at least 620 for an unsecured personal loan, 600 for a car loan, and 580 for an FHA mortgage. Credit unions and online lenders sometimes work with scores as low as 500, but the interest rate will be much higher. If your score is below 620, you may be able to get a loan with a co-signer or by putting down collateral.
Can I get a loan if I am self-employed?
Yes, but you will need to provide more documentation than someone with a regular job. Banks typically want to see tax returns from the last two years and sometimes a profit-and-loss statement. Some banks are more comfortable with self-employed borrowers than others, so it is worth calling ahead to ask what they require before you explore.
Does explore for a loan hurt my credit score?
A single process causes a small, temporary drop in your score — usually 5 to 10 points — because the bank does a hard inquiry. Multiple applications in a short time can add up. However, if you are shopping for the best rate on the same type of loan (mortgage, car loan, personal loan), most credit scoring models treat inquiries within 14 to 45 days as a single inquiry, so the damage is limited.
What is the difference between a fixed and variable interest rate?
A fixed rate stays the same for the entire life of the loan, so your monthly payment never changes. A variable rate can go up or down based on market conditions, so your payment may increase over time. Fixed rates are more predictable and usually higher upfront. Variable rates are lower initially but riskier if rates rise.
What should I do if the bank denies my loan process?
Ask the bank in writing why you were denied — they are required to tell you. Common reasons are low credit score, low income, or high existing debt. You can ask for reconsideration, explore with a co-signer, wait and reapply after improving your credit, or try a different lender. Credit unions and online lenders sometimes have different standards than traditional banks.