Taking out student loans feels like a leap of faith. You are signing up for payments that will not start for years, based on a career you have not begun yet. But here is the good news: there is a straightforward way to figure out how much borrowing actually makes sense. By matching your expected salary to a few simple rules, you can take on debt you will be able to pay back without putting the rest of your life on hold. This article walks you through the math, shares real earnings data by major, and gives your family a clear framework for making smart borrowing decisions for the 2025-26 school year.
The Salary-to-Debt Rule You Need to Know
Financial aid experts keep coming back to one guideline: your total student loan debt at graduation should not exceed your expected first-year annual salary. This is sometimes called the 1:1 rule.
Why does it work? If you borrow $45,000 and your starting salary is $45,000 or more, you can typically pay off those loans within ten years on a standard repayment plan without spending more than about 10% of your gross income on monthly payments. According to Federal Student Aid, the standard repayment plan stretches payments over ten years with fixed monthly amounts, and keeping payments at or below 10% of income is widely considered manageable.
Some advisors use a stricter version: borrow no more than 70-80% of your expected starting salary. That gives you breathing room for lower-than-expected earnings, job search delays, or life expenses like rent in a new city.
Here is what this looks like in practice:
- Expected starting salary of $55,000 -- borrow no more than $38,500 to $55,000 total
- Expected starting salary of $40,000 -- borrow no more than $28,000 to $40,000 total
- Expected starting salary of $75,000 -- borrow no more than $52,500 to $75,000 total
If you find yourself needing to borrow more than your expected salary, it is time to seriously reconsider your plan. That might mean choosing a less expensive school, living at home, working part-time during school, or looking harder for scholarships and grants.
What Do Graduates Actually Earn by Major?
Not all degrees lead to the same paycheck. Your choice of major has a huge impact on how much borrowing makes sense. The National Association of Colleges and Employers (NACE) tracks starting salaries by field, and the Bureau of Labor Statistics (BLS) publishes detailed occupation data. Here is a snapshot of average starting salaries for recent bachelor's degree graduates:
High-Earning Majors
- Computer Science: $80,000 to $90,000
- Engineering (all types): $73,000 to $85,000
- Nursing (BSN): $65,000 to $70,000
- Finance and Accounting: $60,000 to $68,000
- Information Technology: $65,000 to $75,000
For these fields, the federal loan limit of $27,000 in subsidized and unsubsidized loans for dependent undergraduates over four years (per Federal Student Aid) falls well within the 1:1 rule. Borrowing the full federal amount still leaves plenty of room.
Mid-Range Majors
- Business Administration: $55,000 to $62,000
- Communications: $42,000 to $50,000
- Biology (non-medical career path): $40,000 to $48,000
- Criminal Justice: $42,000 to $47,000
- Political Science: $44,000 to $52,000
At this level, the federal loan limit is still reasonable, but adding private loans could push you past the comfort zone. Be careful about out-of-state tuition or expensive private schools if your major falls in this range.
Lower-Earning Majors
- Education: $38,000 to $42,000
- Social Work: $36,000 to $42,000
- Fine Arts: $34,000 to $40,000
- Psychology (bachelor's only): $36,000 to $42,000
- Liberal Arts / General Studies: $35,000 to $40,000
These are important, rewarding careers. But the math demands extra attention. A student graduating with $60,000 in debt and a $38,000 salary is going to feel squeezed for a long time. If you are drawn to one of these fields, minimizing borrowing is not just smart -- it is essential.
How to Calculate Your Personal Borrowing Limit
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- Rank #1Editor's Pick
Undergrad
College Ave
Best for: Students who want flexible repayment options and no origination fees
- 0.25% rate reduction with auto-pay
- Four in-school repayment options
- No application, origination, or prepayment fees
- Borrow from $1,000 up to 100% of cost of attendance
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Lowest Rate 1.94%
1.94% - 17.99% fixed APR, 3.89% - 17.99% variable APR
Disclosures+
College Ave's student loan products are made available through Firstrust Bank, member FDIC, First Citizens Community Bank, member FDIC, or BTG Pactual Bank, N.A., member FDIC. All loans are subject to individual approval and adherence to underwriting guidelines. Program restrictions, other terms, and conditions apply. (1) All rates include the auto-pay discount. The 0.25% auto-pay interest rate reduction applies as long as a valid bank account is designated for required monthly payments. If a payment is returned, you will lose this benefit. Variable rates may increase after consummation. (2) As certified by your school and less any other financial aid you might receive. Minimum $1,000. (3) This informational repayment example uses typical loan terms for a freshman borrower who selects the Deferred Repayment Option with a 10-year repayment term, has a $10,000 loan that is disbursed in one disbursement and a 8.35% fixed Annual Percentage Rate (APR): 120 monthly payments of $179.18 while in the repayment period, for a total amount of payments of $21,501.54. Loans will never have a full principal and interest monthly payment of less than $50. Your actual rates and repayment terms may vary. Information advertised valid as of 8/18/2026. Variable interest rates may increase after consummation. Approved interest rate will depend on creditworthiness of the applicant(s), lowest advertised rates only available to the most creditworthy applicants and require selection of the Flat Repayment Option with the shortest available loan term.
- Rank #2
Undergrad
Sallie Mae
Best for: Undergraduate and graduate students, and parents, comparing competitive fixed- and variable-rate private student loans
- Competitive variable and fixed rates
- Multiple repayment options
- Cosigner release available
- No origination fees
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Lowest Rate 1.95%
1.95% - 17.49% fixed APR, 3.75% - 16.95% variable APR
Disclosures+
Undergraduate School Loan/Smart Option Student Loan: Examples of typical transactions for a $10,000 Smart Option Student Loan with the most common fixed rate, Fixed Repayment Option, two disbursements, a 4-year in-school period, and a 6-month grace: For a borrower with the shortest loan term, it works out to 16.16% fixed APR, 51 payments of $25.00, 119 payments of $296.32 and one payment of $41.82, for a total loan cost of $36,578.90. For a borrower with the longest loan term, it works out to 16.38% fixed APR, 51 payments of $25.00, 177 payments of $265.54 and one payment of $173.00, for a total loan cost of $48,448.58. Loans that are subject to a $50 minimum principal and interest payment amount may receive a loan term that is less than 10 years. A variable APR may increase over the life of the loan. A fixed APR will not. Information advertised valid as of 08/25/2026. Rates: Advertised APRs for undergraduate students assume a $10,000 loan with a 4-year in-school period, a 6-month grace, and the longest loan term offered. Interest rates for variable rate loans may increase or decrease over the life of the loan based on changes to the 30-day Average Secured Overnight Financing Rate (SOFR) rounded up to the nearest one-eighth of one percent. Advertised variable rates are the starting range of rates and may vary outside of that range over the life of the loan. Interest is charged starting when funds are sent to the school. With the Fixed and Deferred Repayment Options, the interest rate is higher than with the Interest Repayment Option and Unpaid Interest is added to the loan's Current Principal at the end of the grace/separation period. To receive a 0.25 percentage point interest rate discount, the borrower or cosigner must enroll in auto debit through Sallie Mae. The discount applies only during active repayment for as long as the Current Amount Due or Designated Amount is successfully withdrawn from the authorized bank account each month. It may be suspended during forbearance or deferment. Cosigner Release: Only the borrower may apply for cosigner release. To do so, they must first meet the age of majority in their state and provide proof of graduation (or completion of certification program), income, and U.S. citizenship or permanent residency (if their status has changed since they applied). In the last 12 months, the borrower can't have been past due on any loans serviced by Sallie Mae for 30 or more days or enrolled in any hardship forbearances or modified repayment programs. In addition, the borrower must have paid ahead or made 12 on-time principal and interest payments on each loan requested for release. The loan can't be past due when the cosigner release application is processed. The borrower must also demonstrate the ability to assume full responsibility of the loan(s) individually and pass a credit review when the cosigner release application is processed that demonstrates a satisfactory credit history including but not limited to no: bankruptcy, foreclosure, student loan(s) in default or 90-day delinquencies in the last 24 months. Requirements are subject to change.
- Rank #3
Undergrad
Earnest
Best for: Borrowers who want a zero-fee¹ lender with flexible repayment options² across undergrad, grad, and professional school programs
- 0.25% Auto Pay³ discount plus 0.25% Loyalty⁴ discount for eligible returning borrowers
- No origination fees, late fees, or prepayment penalties¹
- Borrow $1,000⁵ to $400,000 with 5, 7, 10, 12, or 15-year terms⁶
- Four repayment options², a 9-month grace period⁷, and cosigner release for eligible borrowers⁸
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Lowest Rate 2.29%
2.29% - 16.24% fixed APR, 4.74% - 16.60% variable APR
Disclosures+
Earnest Private Student Loans are subject to credit approval. ¹Earnest does not charge fees for origination, late payments, returned check, or prepayments. Florida Stamp Tax: For Florida residents, Florida documentary stamp tax is required by law, calculated as $0.35 for each $100 (or portion thereof) of the principal loan amount, the amount of which is provided in the Final Disclosure. Lender will add the stamp tax to the principal loan amount. The full amount will be paid directly to the Florida Department of Revenue. Certificate of Registration No. 78-8016373916-1. ²Repayment terms and repayment options available vary based on loan type. ³You can take advantage of the Auto Pay interest rate reduction by setting up and maintaining active and automatic ACH withdrawal of your loan payment from a checking or savings account. The interest rate reduction for Auto Pay will be available only while your loan is enrolled in Auto Pay. Interest rate incentives for utilizing Auto Pay may not be combined with certain private student loan repayment programs that also offer an interest rate reduction. It is important to note that the 0.25% Auto Pay discount is not available when loan payments are deferred during the interim period as a result of selecting the deferred repayment option. ⁴To be eligible for the Loyalty Discount, applicants must have previously obtained an Earnest Private Student Loan and apply using the same email address associated with that loan. Only one Loyalty Discount may be applied per eligible Earnest Private Student Loan. Not all applicants may qualify. This offer cannot be combined with Earnest’s Rate Match program. Earnest may modify or discontinue this offer at any time and without notice, however, once a Loyalty Discount is earned, it will not be taken away. ⁵Residents of Hawaii must request a loan of at least $1,501. ⁶Available interest rates are subject to change. Interest rates as of 03/19/2026. Earnest’s Loan Cost Examples: 1.) These examples provide estimates based on principal and interest payments beginning immediately upon loan disbursement. Variable annual percentage rate ("APR"): A $10,000 loan with a 15-year term (180 monthly payments of $152.84) and a 16.85% interest rate without Auto Pay (16.85% APR) would result in a total estimated payment amount of $27,511.20. For a variable loan, after your starting rate is set, your rate will then vary with the market. Fixed APR: A $10,000 loan with a 15-year term (180 monthly payments of $150.30) and a 16.49% interest rate without Auto Pay (16.49% APR) would result in a total estimated payment amount of $27,054.10. 2.) These examples provide estimates based on interest-only payments while in school. Variable interest rate: A $10,000 loan with a 15-year term (180 monthly payments of $152.84) and a 16.85% interest rate without Auto Pay (16.85% APR) would result in a total estimated payment amount of $35,515.14. For a variable loan, after your starting rate is set, your rate will then vary with the market. Your actual repayment terms may vary. Other repayment options are available. The calculation assumes that the “in-school” period is 4 years (48 months) and includes our 9 month grace period, during which the monthly payment will be $140.42 for 57 months. Fixed interest rate: A $10,000 loan with a 15-year term (180 monthly payments of $150.30) and a 16.49% interest rate without Auto Pay (16.49% APR) would result in a total estimated payment amount of $34,886.94. Your actual repayment terms may vary. Other repayment options are available. The calculation assumes that the “in-school” period is 4 years (48 months) and includes our 9 month grace period, during which the monthly payment will be $137.42 for 57 months. 3.) These examples provide estimates based on fixed $25 payments while in school. Variable interest rate: A $10,000 loan with a 15-year term (180 monthly payments of $253.39) and a 16.85% interest rate without Auto Pay (14.92% APR) would result in a total estimated payment amount of $47,035.20. For a variable loan, after your starting rate is set, your rate will then vary with the market. Fixed interest rate: A $10,000 loan with a 15-year term (180 monthly payments of $246.61) and a 16.49% interest rate without Auto Pay (14.65% APR) would result in a total estimated payment amount of $45,814.80. Your actual repayment terms may vary. Other repayment options are available. The calculation assumes that the “in-school” period is 4 years (48 months) and includes our 9 month grace period, during which the monthly payment will be $25.00. 4.) These examples provide estimates based on deferred payments. Variable interest rate: A $10,000 loan with a 15-year term (180 monthly payments of $275.17) and a 16.85% interest rate without Auto Pay (14.67% APR) would result in a total estimated payment amount of $49,530.60. For a variable loan, after your starting rate is set, your rate will then vary with the market. Fixed interest rate: A $10,000 loan with a 15-year term (180 monthly payments of $268.03) and a 16.49% interest rate without Auto Pay (14.39% APR) would result in a total estimated payment amount of $48,245.40. Your actual repayment terms may vary. Other repayment options are available. It is important to note that the 0.25% Auto Pay discount is not available when the deferred repayment option has been selected and the loan is in the interim period. The calculation assumes that the “in-school” period is 4 years (48 months) and includes our 9 month grace period, during which the monthly payment will be $0. ⁷Nine-month grace period is not available for borrowers who choose our Principal and Interest Repayment plan while in school. ⁸To qualify for automatic cosigner release, the outstanding principal balance of your loan must be paid down to 50% or less of the original principal balance. The primary borrower must have made 36 months of required payments after the end of the Interim Period. The primary borrower must meet our eligibility and minimum credit requirements. Additional terms and conditions may apply. To request cosigner release, the primary borrower must have made 12 consecutive, monthly on-time principal and interest payments (or an amount equal thereto) immediately preceding the cosigner release application. The primary borrower must satisfy certain eligibility and credit criteria at the time of application. Additional terms and conditions may apply. ⁹Includes 0.50% combined Auto Pay and Loyalty discounts. Actual rate and available repayment terms will vary based on your financial profile. Fixed annual percentage rates (APR) range from 2.79% to 16.74% (2.29% - 16.24% with Auto Pay and Loyalty discounts). Variable annual percentage rates (APR) range from 5.24% to 17.1% (4.74% - 16.6% with Auto Pay and Loyalty discounts). Earnest variable interest rate student loans are based on a publicly available index, the 30-day Average Secured Overnight Financing Rate (SOFR) published by the Federal Reserve Bank of New York. The variable rate is based on the rate published on the 25th day, or the next business day, of the preceding calendar month, rounded to the nearest hundredth of a percent plus a margin and will change on the 1st of each month. The rate will not increase more than once a month, but there is no limit on the amount that the rate could increase at one time. Our lowest rates are only available for our most credit qualified existing cosigned loan borrowers who receive the 0.25% Loyalty discount and requires selection of our shortest term offered, full principal and interest payment while in school, and enrollment in our 0.25% Auto Pay discount. Enrolling in Auto Pay is not required as a condition for approval. Interest rates are subject to change. Earnest Private Student Loans are made by FinWise Bank, Member FDIC. FinWise Bank, 756 East Winchester, Suite 100, Murray, UT 84107. Earnest student loans are serviced by Earnest Operations LLC, 300 Frank H. Ogawa Plaza, Suite 340, Oakland, CA 94612. NMLS #1204917, with support from Higher Education Loan Authority of the State of Missouri (MOHELA) (NMLS# 1442770). FinWise Bank and Earnest LLC and its subsidiaries, including Earnest Operations LLC, are not sponsored by agencies of the United States of America. © 2026 Earnest LLC. All rights reserved.
Here is a step-by-step way to figure out what makes sense for your situation:
Step 1: Research your expected salary. Use the BLS Occupational Outlook Handbook to find median salaries for the careers you are considering. Look at entry-level pay, not mid-career numbers.
Step 2: Apply the 1:1 rule. Your total borrowing across all four years should stay at or below that entry-level salary figure. If you want to be conservative, aim for 70-80% of it.
Step 3: Subtract grants and scholarships. According to Sallie Mae's "How America Pays for College" 2025 report, scholarships and grants covered an average of 32% of college costs in the most recent academic year. Factor in every dollar of free money first.
Step 4: Factor in family contributions and savings. What can your family contribute from income or savings each year? Even $3,000 to $5,000 a year adds up to $12,000 to $20,000 over four years.
Step 5: Calculate the gap. Whatever is left after grants, scholarships, family contributions, and your own savings and work income is the amount you would need to borrow. Compare it to your limit from Step 2.
Step 6: Run the monthly payment. Use the Federal Student Aid loan simulator to see what your monthly payment would be on a standard 10-year plan. If that number is more than 10% of your expected monthly gross income, you are borrowing too much.
Federal Loan Limits: Your Built-In Safety Net
One thing working in your favor: federal student loan limits are designed to keep most borrowers in a reasonable range. For the 2025-26 academic year, Federal Student Aid sets these annual limits for dependent undergraduate students:
- Freshman year: $5,500 ($3,500 subsidized)
- Sophomore year: $6,500 ($4,500 subsidized)
- Junior and Senior years: $7,500 each ($5,500 subsidized)
- Aggregate limit: $31,000 ($23,000 subsidized)
That $31,000 total is below the starting salary for nearly every major listed above. In other words, if you stick to federal loans only, you are almost always within a safe borrowing range. The trouble starts when families turn to Parent PLUS loans or private loans to cover the rest of the bill at expensive schools.
According to College Board's Trends in Student Aid, the average bachelor's degree recipient from the class of 2023-24 who borrowed graduated with about $29,400 in federal student loan debt. That is a manageable number for most graduates -- but it does not include private loans, which push the true total higher for many families.
The Monthly Payment Reality Check
Abstract numbers are hard to feel. Let us make them real. Here is what different debt levels look like as monthly payments on a standard 10-year repayment plan at a 6.52% interest rate (the current rate for Direct Unsubsidized Loans for the 2026-27 year):
- $27,000 borrowed: about $307 per month
- $31,000 borrowed: about $352 per month
- $50,000 borrowed: about $569 per month
- $75,000 borrowed: about $853 per month
- $100,000 borrowed: about $1,137 per month
Now compare those to starting salaries. A teacher earning $40,000 a year takes home roughly $2,800 per month after taxes. A $352 monthly payment is 12.6% of that take-home pay -- tight, but workable. Jump to $569 per month and that is 20% of take-home pay, which means real sacrifices in housing, food, and savings.
A software engineer earning $85,000 takes home roughly $5,200 per month. Even a $569 monthly payment is only about 11% of take-home -- much more comfortable.
This is why the same dollar amount of debt can be perfectly fine for one graduate and crushing for another. Your major and career path matter enormously.
Income-Driven Repayment: A Safety Valve, Not a Strategy
You may have heard about income-driven repayment (IDR) plans that cap payments at a percentage of your discretionary income. (Note: the SAVE plan has been terminated by court order. Starting July 1, 2026, the new Repayment Assistance Plan (RAP) sets payments at 1% to 10% of income over 30 years. Other IDR plans like IBR, PAYE, and ICR remain available.) These plans are valuable as a safety net. If you hit a rough patch -- job loss, medical bills, a slow start to your career -- IDR keeps your payments affordable.
But do not borrow more than you should just because IDR exists. Here is why:
- IDR plans extend your repayment period to 20 or 25 years, meaning you pay far more in interest over time.
- Forgiveness after 20-25 years may be taxable depending on future tax law.
- Counting on a government program staying exactly the same for two decades is risky. Policy changes happen.
Think of IDR as a backup plan, not your primary strategy. Your primary strategy should be borrowing within the 1:1 rule.
Roadblocks to Watch
Falling in love with a school you cannot afford. This is the most common challenge families face. A dream school with a $60,000 annual price tag and a $15,000 merit scholarship still costs $180,000 over four years. If your expected starting salary is $50,000, the math does not work -- no matter how beautiful the campus is.
Ignoring the difference between sticker price and net price. The sticker price is what the school advertises. The net price is what you actually pay after grants and scholarships. Always look at the net price. Use each school's net price calculator (required by federal law) to get a realistic estimate before you commit.
Assuming your salary will grow fast enough to cover big payments. Yes, salaries usually go up over time. But your loan payments start six months after graduation, and the first few years out of school are expensive in other ways too: rent deposits, work clothes, car payments, maybe moving costs. Do not count on year-five earnings to handle year-one bills.
Mixing up gross pay and take-home pay. When you see a starting salary of $50,000, remember that taxes, health insurance, and retirement contributions will take a significant cut. Your actual take-home might be $35,000 to $38,000. Always run your affordability math on take-home pay, not gross.
Borrowing for living expenses beyond the basics. Federal loans can cover room and board, but that does not mean you should use them for a luxury apartment or eating out every night. Keep your cost of living as low as you reasonably can while in school, and your future self will thank you.
Not revisiting the plan each year. Your financial situation, your major, and your career goals can all change. Reassess your borrowing plan at the start of each academic year. If you switched from engineering to education, your borrowing limit just dropped, and you need to adjust.
The Bottom Line
The right amount to borrow comes down to one clear question: can you pay it back on your expected salary without it taking over your life? The 1:1 rule gives you a solid starting point. Federal loan limits offer a reasonable guardrail. And knowing what graduates in your field actually earn turns a vague worry into a concrete plan.
Every dollar you do not borrow is a dollar you will not owe with interest later. So look for scholarships, apply for grants, consider community college for your first two years, work part-time, and choose a school where the price matches what your degree is likely to be worth.
The best time to think about repayment is before you borrow, not after. If you want help comparing schools based on what they will actually cost your family and how that fits with your expected earnings, CollegeLens can help you build a personalized plan. It pulls together financial aid data, cost estimates, and outcomes so you can make this decision with real numbers instead of guesswork.
Sravani at CollegeLens
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