54% of surveyed physicians say they lack sufficient financial advice and support, and many physicians may ask whether they should pay off student loans or invest.
The decision is rarely a simple calculation for recent grads and attendings. However, it is a high-stakes choice that impacts your entire financial future, shaped by medical school debt, specialty income, loan forgiveness eligibility, tax planning, risk tolerance, and the stress of carrying six figure debt after graduation.
According to the AAMC, the median medical school debt for the class of 2025 was $215,000. The median four-year cost of attendance for the class of 2026 sits at $297,745 for public medical schools and $408,150 for private medical schools. Physician compensation reports demonstrate why the invest-vs-paydown decision looks different for physicians compared to most borrowers, with compensation varying widely by specialty and career stage.
Most new physicians ask, “Should I pay off student loans or invest?” But, the better question is, “Which strategy fits my loan rate, employer, specialty trajectory, and comfort level?”
As one nephrology resident shares on Sermo, “A classic physician dilemma where math and psychology rarely agree. This captures the tension between guaranteed debt reduction and probabilistic market growth, with compounding quietly competing against peace of mind..”
A hospital medicine physician adds, “I do wish that more of this was discussed during school rather than us just trying to figure it out on our own”
In a Sermo poll asking 600+ physicians, “Which strategy are you currently prioritizing regarding your medical school debt?”,42% had already paid off their student loans. The remaining respondents answered:
- 18% took an aggressive repayment approach, paying as much as possible to be debt-free ASAP
- 16% were pursuing a balanced approach, splitting extra cash 50/50 between debt and investing
- 17% made just minimal repayments with maximum investment
- 8% were planning on making use of Public Service Loan Forgiveness (PSLF), focusing on qualifying payments rather than the balance.
This article unpacks how to best think about paying off debt or investing, sharing real insights from physicians on Sermo who have traversed the same challenges, to provide a clear roadmap for your specific debt load, income, tax situation, and career trajectory. While these examples draw heavily from U.S. loan structures (e.g., PSLF), the decision framework applies globally, with local adjustments.
Disclaimer: This article is for general informational purposes only and does not constitute financial, tax, or legal advice. Physicians should consult a qualified financial advisor or CPA before making significant decisions.
The 6 percent threshold: How to frame the pay-off vs invest decision
In most cases, you should not treat paying off student loan debt or investing as an all-or-nothing decision. High-interest debt without PSLF eligibility often favors aggressive repayment. However, PSLF-eligible physicians often benefit from minimizing payments and investing the difference. Many doctors land in the middle, capturing tax-advantaged investing opportunities while directing extra cash toward federal student loans.
The most straightforward starting point is interest rate.
If your student loan interest rate is above 6%, the projected return of eliminating that debt typically competes strongly with uncertain market returns. Paying off a loan at 7% is economically similar to earning a 7% return on investment, without market volatility or tax drag.
Between 4% and 6% is the gray zone. PSLF eligibility, tax bracket, filing status, specialty income, and emotional comfort with debt all matter. This is also where many physicians benefit from reviewing loan forgiveness for physicians before making extra payments.
If your loan interest rate is below 4%, often possible after refinancing, investing may result in a better return over the long term. Sermo’s investing for physicians guide notes that investing should begin with a clear end goal, a stable financial foundation, and an understanding of risk tolerance. Physician personal loans can have advantages, but they require careful comparison and an understanding of trade-offs.
Here’s an example that illustrates the compounding impact of interest rates, assuming consistent 10% investment and long-term market returns:
- Physician A, debt-free at 35, invests 10% of a $350,000 salary and accumulates about $6 million by age 70.
- Physician B, debt-free at 45, invests the same amount and accumulates roughly $1.6 million.
The 10-year head start leads to a $4.4 million gap.
Sermo polled physicians to establish the highest interest rate at which they would still prioritize investing over debt repayment. The largest segment of respondents (31%) stated they would always pay off debt first, regardless of the rate. Among those who cited specific thresholds, 22% chose 4%-5% and another 22% chose 6%-7%. A smaller portion, 12%, said they would prioritize investing only if the rate was 3% or lower. Finally, 13% reported that they do not pay attention to the rates and instead just follow a set monthly budget.
An orthopedic surgeon summarizes the current environment well, “The “debt vs. invest” debate in 2026 has become much more nuanced as the era of ultra-low interest rates has faded. While the cold math of “arbitrage” still tempts many to favor the market, I’m seeing a major shift toward the psychological relief of debt repayment. Paying down a 6% or 7% medical school loan is effectively a guaranteed, tax-free return, which is incredibly attractive in a volatile market.”
A pathologist offers the counterargument: “Investment is an important part of establishing financial securities and wealth creation. It’s necessary as it can help too in confidence of early retirement. My advice is that everyone start early. Get yourself acquitted with the various diversifications of investment available, learn as much as you could and just start. There is no conducive time to start. The earlier the better at the end.”
What interest rate threshold should physicians use to decide between loan payoff and investing? A practical threshold is 6%. Above 6% to 7%, extra repayment often becomes highly attractive. Below 4%, investing often becomes a better option. Between 4% and 6%, the decision depends on PSLF, taxes, specialty income, and risk tolerance.
When physicians should consider paying off loans aggressively
When should a physician pay off student loans instead of investing? A physician should consider paying off student loan debt when rates are high, PSLF is unavailable, refinancing does not meaningfully improve the math, or the emotional burden of debt undermines quality of life and financial discipline.
High interest rate and no Public Service Loan Forgiveness (PSLF) eligibility
If loans are above 6% to 7% and PSLF is off the table, aggressive debt repayment typically makes the most financial sense. A physician earning $300,000 who keeps a $60,000 to $70,000 resident-style lifestyle can potentially direct $150,000 or more per year toward loans, eliminating $200,000 in debt in under two years. White Coat Investor describes this as “living like a resident,” where physicians keep attending expenses artificially low for a few years after training to attack debt and build wealth.
Private practice or non-qualifying employer
If you’re a physician in private practice, for-profit groups, or non-qualifying employers need to be especially clear about PSLF. If forgiveness is not available, refinancing can become more attractive. However, refinancing federal loans into private student loans permanently removes federal protections, including PSLF eligibility and income-driven repayment options.
This is when you should compare Annual Percentage Rate (APR), fixed versus variable rates, fees, prepayment penalties, and protections. Sermo’s physician mortgage loan guide makes a similar point in the housing context: physician-specific loans can be useful, but the fine print matters, especially when debt-to-income conditions and future flexibility are at stake.
The psychological cost of debt outweighs the math
For some physicians, debt is not just a line item. It is a source of cognitive stress.
In a recent Sermo poll, physicians were asked “How much does the “psychological weight” of debt influence your financial decisions compared to the actual math?”. A large majority said that it does impact them to some degree:
- 30% said Extremely: I hate owing money; I’ll sacrifice returns for a zero balance.
- 41% voted Moderately: I feel the stress, but I stick to the most profitable math.
- 20% said Minimally: I view debt as a tool; it doesn’t bother me emotionally.
- 10% selected Not at all: I only care about my net worth, regardless of the debt column.
“Being completely debt-free gives you the ultimate leverage. It gives you the financial security to drop a clinical shift, walk away from a toxic hospital administration, or transition to locums without panic,” writes a Sermo member and intensive care physician.
A pediatrician in the U.S. puts it simply: “Investing in a volatile stock market and not paying off my debt doesn’t feel right.”
A dermatology resident adds, “Not having a monthly loan bill or seeing interest compound would give me such relief emotionally. Doctoring is so hard already, especially in residency, without the mental burden of compounding interest!”
And a psychiatrist explains, “The feeling of the weight lifted after paying debts off cannot be put in words…”
When does it make sense for a physician to pay off student loans aggressively? It can make sense when the physician has high-interest debt, stable income, no loan forgiveness path, and enough cash flow to eliminate the balance quickly without skipping emergency savings or employer retirement matching.
When physicians should consider investing instead of paying off loans faster
You qualify for PSLF and are on track for forgiveness
Public Service Loan Forgiveness (PSLF) can be a valuable option for many physicians. PSLF can be worth it for physicians who have qualifying federal loans, work full time for a qualifying employer, expect a meaningful balance to remain after 120 qualifying payments, and are comfortable following program requirements carefully. The Department of Education’s PSLF guidance confirms the core requirements around qualifying employment, qualifying loans, and qualifying payments.
For PSLF-eligible physicians, extra payments can be financially counterproductive.
However, the policy landscape is changing. Because of Trump’s One Big Beautiful Bill Act, proposals to cap borrowing, eliminate Grad PLUS loans, and exclude residents from PSLF credit could worsen physician shortages and make medical education less accessible. Medical Economics reports that the One Big Beautiful Bill Act reshaped repayment planning, with SAVE interest subsidies ending August 1, 2025, RAP launching in 2026, and PAYE, SAVE, and ICR sunsetting by July 2028. As a doctor, it’s critical to verify the current rules before committing to any PSLF strategy.
If you’re a physician on track for PSLF, the recommended strategy is to minimize qualifying payments and invest the difference rather than reduce a balance that may be forgiven.
Your employer offers a 401(k) match you’re not capturing
A 5% employer match on a $350,000 salary is $17,500 per year in employer contributions, essentially ‘free money’. Skipping that match to make extra loan payments is usually giving up guaranteed compensation.
Sermo’s 401(k) guide for doctors notes that only 56% of physicians contribute to their 401(k) regularly, while 23% do not have one at all. The IRS increased the 401(k), 403(b), and most 457 plan elective deferral limits to $24,500 for 2026, making retirement account planning even more central for physicians balancing debt and investing.
Your loans are at a low interest rate after refinancing
If refinanced loans are below 5%, long-term diversified investing, such as index funds, may outpace debt repayment. The caveat is that investing only wins if the extra cash is actually invested, not absorbed into lifestyle upgrades such as more frequent spending, a larger mortgage, or a more lavish vacation.
When Sermo asked physicians, “If you choose to invest instead of paying down debt, what is your primary why?”, the answers for those choosing this strategy included:
- 23% – The “Math”: My expected investment returns are higher than my loan interest rates
- 12% – Time in the Market: I don’t want to miss out on compound interest years
- 11% – Tax Advantages: Prioritizing 401k/HSA/Backdoor Roth contributions
- 10% – Liquidity: I’d rather have accessible cash in a brokerage than equity in a loan
- 7% – Inflation: High inflation effectively “shrinks” the value of my fixed debt
A family medicine physician shares on Sermo, “My financial planner encouraged me to invest first while paying debt off at slowest possible pace as it was less costly. [Paid] off recently. Worth it I think. Get professional advice.”
“I always invest in ETFs that yield a return higher than the annual inflation, earning little but safely and paying off debt, as long as the interest losses are lower than the gains,” shares one GP on Sermo.
The hybrid approach most physician finance experts recommend
For many physicians, the best physician student loan strategy is neither “destroy the debt at all costs” nor “invest every spare dollar.” It is a balancing act. “For many physicians, the best move is a balanced approach, keep manageable loan payments while investing consistently for long-term growth,”a general practice physician summarizes.
In a recent Sermo poll asking physicians what they’d do with a $50,000 tax-free windfall, the most popular choice — at 35% — was splitting it evenly between debt repayment and investing. A quarter (26%) said they’d put the full amount into a brokerage account or S&P 500 index fund, while 14% would direct everything straight to their student loan principal. Another 14% would park the money in a high-yield savings account as an emergency fund, and 11% would channel it toward an alternative investment like real estate or a new LLC.
Specialty matters. A pediatrician, GP, orthopedic surgeon, or psychiatrist may all face the same question with very different cash-flow scenarios. Other significant factors include geography, family size, homeownership, disability risk, and whether you’re still training.
In another Sermo poll asking, “Which investment vehicle do you trust most as an alternative to debt repayment?”, the most popular choices were:
- 33% Tax-advantaged retirement accounts (401k/403b)
- 33% Low-cost Total Stock Market Index Funds
- 18% Real Estate (Rental properties or Syndications)
- 14% High-Yield Savings Accounts or CDs (Fixed income)
“Investments are always a risk and you might not get as much money as you think. Loan interest is a guarantee cost,” warns one pediatric neurology physician. If you’re interested in pursuing the hybrid approach, here are recommended steps to follow:
Step 1. Capture the full employer 401(k) or 403(b) match
Start with the match. This step usually comes first regardless of debt load, interest rate, or PSLF status. Employer matching is one of the major advantages of 401(k)s for physicians.
Step 2. Build a three to six month emergency fund
Before accelerating either repayment or investing, doctors need a cash buffer. Sermo’s retirement planning for physicians article discusses having an emergency fund equal to a few months, or even a year, of living expenses depending on your circumstances.
A U.S. physician resident expands, “I think there is a balance between investing versus going full in on debt repayment. Of course that varies with every person’s situation. Personally, I’m leaning towards maintaining a monthly minimal payment along with putting some money towards principal after I’ve maximized my investment accounts and saved up for real life purchases such as a home.”
Step 3. Fund an HSA if eligible
If you’re a physician with a high-deductible health plan, the HSA remains one of the strongest tax tools available. It can offer tax-deductible contributions, tax-free growth, and tax-free withdrawals for qualified medical expenses. IRS guidance lists the 2026 HSA contribution limit at $4,400 for self-only coverage and $8,750 for family coverage.
Step 4. Pursue Backdoor Roth IRA
The IRS increased the 2026 IRA contribution limit to $7,500, with a catch-up limit of $1,100 for those 50 and older. Most attending physicians exceed direct Roth IRA income limits. Sermo’s Backdoor Roth IRA guide explains how high-income physicians can use a nondeductible traditional IRA contribution followed by a Roth conversion, while avoiding the pro rata rule and filing Form 8606 correctly.
Step 5. Direct remaining cash based on your specific situation
If you’re eligible for PSLF, minimize Income-driven repayments and invest the difference in tax-advantaged or brokerage accounts. If not PSLF-eligible and the interest rate is above 6%, direct extra cash to the highest-interest loans first using the avalanche method.
The avalanche loan repayment method is a debt payoff strategy where you make minimum payments on all debts, then put any extra money toward the debt with the highest interest rate first. Once that debt is paid off, you move that payment amount to the next highest-interest debt, which usually saves the most money over time. For doctors, it’s often a useful strategy when you have a mix of high-interest student loans, credit cards, or personal loans, because it prioritizes the most expensive debt first.
If not PSLF-eligible and the rate is below 5%, consider additional investing.
Sermo also asked physicians, “For those who have already paid off their loans, do you regret not investing that money sooner?”
Respondents provided various perspectives on the trade-off: 15% admitted they regret missing out on a major bull market, while the majority (46%) felt that the emotional benefit of being debt-free was worth the lower returns. Additionally, 19% expressed no regret because they paid off their student loans during a market downturn anyway, and the remaining 20% were not yet in a position to answer as they are still paying off their debt.
A Sermo member and intensive care physician describes the hybrid logic this way:
“My approach is the pragmatic middle ground: Step 1: Maximize the Tax Shields. You never want to leave an employer match or a tax deduction on the table. Step 2: Nuke the Debt. Every extra dollar of cash flow after that goes straight to the loans. Compound interest is undeniably a powerful force, but you cannot put a price tag on the peace of mind of a zero balance. Maximizing your portfolio is great, but buying your freedom to practice medicine on your own terms is priceless.”
A nephrologist says, “The numbers may suggest investing makes more sense, especially with relatively low-interest loans, but the emotional weight of carrying debt isn’t trivial. For some, getting rid of that burden is worth more than potential market gains. Ultimately, there’s no one-size-fits-all answer: it comes down to personal comfort with risk, financial goals, and where you are in your career.”
The best strategy for physicians to balance loan repayment and investing involves capturing the employer match, building an emergency fund, using tax-advantaged accounts, and then directing remaining cash based on PSLF status and loan interest rates.
How side income supports whichever strategy you choose
Side income is the financial multiplier. An extra few thousand dollars per year, or tens of thousands for some physicians, compresses every timeline. It can accelerate loan payoff, fill an emergency fund, fund a Backdoor Roth IRA, or build a brokerage account.
The key is matching side income to your loan strategy. A physician pursuing PSLF should generally invest side earnings rather than pay down student loan debt that may be forgiven. A physician with high-interest private loans and no PSLF path may want every extra dollar pointed at the balance.
Common physician side income streams include taking paid medical surveys on Sermo, locum tenens work, telehealth moonlighting, medical writing, tutoring, and consulting. Sermo’s resident side gigs guide notes that paid surveys can be flexible because physicians can complete them on their own schedule, while moonlighting must be balanced against duty-hour rules and program approval. Sermo paid over $25 million to physicians in the past year, with some members earning more than $15,000.
Understanding loan repayment programs in the context of the pay-off vs invest decision
As a physician, the repayment program you chose directly influences loan pay-off vs. investing strategy. If you qualify for PSLF, you should avoid extra payments on a loan that will be forgiven. A physician who refinanced to 4.5% or less, faces a different situation. A physician on standard repayment with 7% loans needs a different plan entirely.
In a recent Sermo poll, physicians were asked whether they’d refinanced their student loans in the last 24 months to take advantage of market shifts. Of those still carrying debt, 21% hadn’t looked into refinancing recently, while 15% were holding onto their federal loans specifically for the protections and forgiveness options they offer. A smaller share had refinanced: 10% locked in a lower fixed rate, and 9% went with a variable rate instead.
Physicians evaluating refinancing should also review broader debt tools carefully. Physician-specific loans can offer flexible approval criteria, but also come with trade-offs around rates, fees, and overextension risk.
The best strategies for physician student loan payments include PSLF for eligible nonprofit or government-employed physicians, refinancing for physicians who are clearly not PSLF-eligible and can secure a meaningfully lower rate, avalanche repayment for high-interest balances, and hybrid repayment plus investing for physicians in the middle.
Should you pay off student loans or invest?
The decision to pay off student debt or invest your income depends on interest rates, PSLF eligibility, specialty income, tax strategy, and risk tolerance. The compounding cost of delay is real, as Sermo’s financial planning example shows with a $4.4 million difference over a long investing horizon.
But the psychological weight of carrying $200K or more in debt is stressful too. For most physicians, the answer is a hybrid plan: leverage employer matching, build liquidity, use tax-advantaged accounts, then choose debt payoff or investing based on your actual loan terms and forgiveness path.
Join the discussion on Sermo to see how physicians are navigating monthly payment timelines, investing decisions, refinancing, and PSLF. Plus, see how the top physicians build side incomes, such as paid medical surveys to compress their repayment timelines and build a practical plan to save for retirement.
