How Credit Scores Are Used in Loan Decisions
Lenders use credit scores to assess the risk that you will repay a loan on time. A higher score generally signals that you have managed credit responsibly, making you more likely to qualify for a loan and receive favorable terms.
For both personal loans and private student loans, lenders typically review your credit score, income, and debt-to-income ratio. For federal student loans, the role of credit depends on the specific loan type.
- Credit scores help lenders decide whether to approve your application and what interest rate to offer.
- A higher credit score often translates to lower interest rates, which can save you money over the life of the loan.
- Lenders may also consider your credit history, including payment history and length of credit history.
Sources: CU Student Choice, MyBankTracker

Credit Score Requirements for Personal Loan Eligibility
For personal loans, most lenders prefer borrowers with credit scores above 680, but some approve applicants with scores as low as 580. Your credit score directly influences the annual percentage rate (APR) you are offered.
Based on industry data, average APRs for personal loans vary significantly by credit tier. Borrowers with excellent credit (720–850) may see average APRs around 10.9%, while those with poor credit (below 630) may face averages near 27.1%.
- Excellent credit (720–850): average APR ~10.9%
- Good credit (690–719): average APR ~13%
- Fair credit (630–689): average APR ~17.8%
- Poor credit (below 630): average APR ~27.1%
Sources: MyBankTracker
Impact of Credit Score on Federal and Private Student Loans
Federal student loans fall into different categories, and their credit requirements vary. Federal Direct Subsidized and Unsubsidized loans do not require a credit check, so your credit score does not affect your eligibility or the interest rate. In contrast, Federal Direct PLUS loans do require a credit check; a history of adverse credit can lead to denial, although the interest rate for PLUS loans is fixed and not based on your credit score.
Private student loan lenders, on the other hand, use your credit score, along with income and debt-to-income ratio, to assess risk. Higher credit scores typically lead to lower interest rates. For example, a score of 760 or above generally qualifies for the best advertised rates, while scores below 640 may be below many lenders' minimum thresholds.
- Federal Direct Subsidized/Unsubsidized: no credit check, so credit score has no impact on rate.
- Federal Direct PLUS: credit check required; adverse credit can cause denial, but rate is fixed.
- Private student loans: credit score strongly impacts rate; higher scores mean lower rates.
Sources: CU Student Choice
How Co-signers Can Help If Your Credit Is Limited
If your credit score is low or you have limited credit history, adding a co-signer with strong credit can significantly improve your chances of approval and lower your interest rate. This applies to both private student loans and personal loans.
For private student loans, a co-signer with excellent credit can help you secure a lower rate or even get approved when you might not qualify on your own. The co-signer is equally responsible for repaying the loan, so it's important to understand the commitment.
- A co-signer with good credit can improve approval odds and lower interest rates.
- Co-signers are often used for private student loans when the borrower has thin or poor credit.
- Both the borrower and co-signer are responsible for the debt.
Sources: CU Student Choice
Steps to Improve Your Credit Before Applying for a Loan
Improving your credit score before applying for a loan can help you qualify for better terms and lower interest rates. While there is no guaranteed way to boost your score quickly, focusing on responsible credit habits can make a difference over time.
One key step is making all payments on time, since payment history is a major factor in your credit score. Also, avoid opening too many new accounts at once, and keep your credit utilization low. For student loan applicants, note that multiple hard inquiries for rate shopping within a short period are typically treated as a single inquiry, which minimizes the impact on your credit.
- Pay all bills on time, including existing loans and credit cards.
- Keep credit card balances low relative to your limits.
- Limit new credit applications, but you can shop for rates within a short window without major credit damage.
- Check your credit report for errors and dispute any inaccuracies.
Sources: University of Illinois System Student Money Management Center, Citizens Bank
What to Do If You Have No Credit History
If you have no credit history, you may find it challenging to qualify for a personal loan or a private student loan without a co-signer. However, federal student loans (Direct Subsidized/Unsubsidized) do not require a credit check, making them an accessible option for many students.
For private loans, consider applying with a co-signer who has an established credit history. Alternatively, you can build your credit over time by opening a secured credit card or becoming an authorized user on someone else's account, though these steps may take months to show results.
- Federal Direct Subsidized/Unsubsidized loans are available without a credit check.
- A co-signer with good credit can help you qualify for private loans.
- Building credit takes time; start with small, manageable credit accounts and pay them on time.
Sources: CU Student Choice, MyBankTracker
Side-by-Side Category and Decision Matrix
The table below summarizes how credit scores affect different loan categories. Note that federal student loans have a fixed rate regardless of credit, while private student loans and personal loans vary by creditworthiness. The decision on which loan to choose often depends on your credit profile, the purpose of the loan, and whether a co-signer is available.
- For federal student loans, credit score is not a factor for Direct Subsidized/Unsubsidized, but it matters for PLUS loans.
- For private student loans and personal loans, a higher credit score generally leads to lower rates.
- If your credit is limited, using a co-signer can improve approval odds and lower rates for private loans.
- If you have no credit history, federal student loans or a co-signer may be your best options.
| Loan Category | Credit Check Required | Impact on Rate | Typical Credit Score Range |
|---|---|---|---|
| Federal Direct Subsidized/Unsubsidized | No | None | No minimum |
| Federal Direct PLUS | Yes | None (fixed rate), but adverse credit can lead to denial | No set minimum, but no adverse history |
| Private Student Loan (760+) | Yes | Lower rates | 760 or above |
| Private Student Loan (720-759) | Yes | Slightly higher rates | 720-759 |
| Private Student Loan (680-719) | Yes | Higher rates; cosigner may help | 680-719 |
| Private Student Loan (640-679) | Yes | Higher rates; cosigner often beneficial | 640-679 |
| Personal Loan (Excellent) | Yes | Average APR ~10.9% | 720-850 |
| Personal Loan (Good) | Yes | Average APR ~13% | 690-719 |
| Personal Loan (Fair) | Yes | Average APR ~17.8% | 630-689 |
| Personal Loan (Poor) | Yes | Average APR ~27.1% | Below 630 |
Sources: CU Student Choice, MyBankTracker
Frequently asked questions
Can I get a personal loan with a credit score below 600?
Yes, some personal loan lenders approve applicants with scores as low as 580, but you will likely face higher interest rates. Based on industry data, borrowers with credit scores below 630 see average APRs around 27.1%.
Sources: MyBankTrackerDo federal student loans require a credit check?
Federal Direct Subsidized and Unsubsidized loans do not require a credit check. However, Federal Direct PLUS loans do require a credit check, and a history of adverse credit can lead to denial.
Sources: CU Student ChoiceHow much does a good credit score lower your interest rate?
A higher credit score can significantly lower your interest rate. For personal loans, the average APR for excellent credit (720-850) is around 10.9%, while for fair credit (630-689) it's about 17.8%. For private student loans, a score of 760 or above generally qualifies for the best advertised rates.
Sources: CU Student Choice, MyBankTrackerShould I use a co-signer for a student loan if I have thin credit?
Yes, using a co-signer with strong credit can significantly improve your approval odds and lower your interest rate for private student loans. For federal loans, a co-signer is not needed since most do not require a credit check.
Sources: CU Student ChoiceSources
- Comparing Private Student Loans — University of Illinois System Student Money Management Center
- How Credit Scores Affect Student Loans + 5 Steps Before You Apply — CU Student Choice
- What credit score is needed for a personal loan? | MyBankTracker — MyBankTracker
- How do student loans affect your credit score? | Citizens — Citizens Bank