Investing basics while paying off dental debt

This page is general education, not advice for your situation. It explains the trade-offs so you can run your own numbers or bring better questions to a professional.

The core tension is simple. Every dollar can either cut an 8.07% loan or go into investments with an uncertain return.

Before you invest anything

Two things usually come first:

1. An emergency fund. Investments can be down exactly when you need cash. See high-yield savings for dentists.
2. Credit card balances. Investor.gov says no investment strategy pays off as well as, or with less risk than, eliminating high-interest debt. Cards can charge 18% or more.

The employer match

Some employers match part of your 401(k) contributions, per Investor.gov. The match is part of your pay.

Example. An associate earns $180,000 and the practice matches 100% of the first 4%. Putting in $7,200 a year brings in another $7,200 from the employer. That’s an immediate 100% on those dollars before any market return.

No loan payoff comes close to that. Ask whether the match vests over time, so you know what you keep if you leave.

For 2026, the IRS caps your own 401(k) contributions at $24,500, and IRA contributions at $7,500.

Debt rate vs expected return

New graduate Direct Unsubsidized loans for 2026–27 carry 8.07% fixed (FSA). If you’ll repay that loan in full, paying extra on it is a guaranteed, risk-free 8.07% return.

One exception: on RAP, when your payment doesn’t cover the month’s interest, the rest is waived. Extra dollars first pay interest that would have been forgiven anyway, so they earn little until they exceed that gap. Run your numbers in the RAP payment estimator before prepaying.

Investor.gov puts debt at “about 8% or above” in the high-interest category worth paying down first. At 8.07%, federal dental loans sit right on that line.

The math. An extra $10,000 toward an 8.07% loan saves about $807 of interest in the first year. On a 10-year payoff, it avoids about $22,000 of payments, counting the original $10,000.

To beat that, the same $10,000 invested would need to earn more than 8.07% a year, after taxes and fees, every year on average. Markets have no guaranteed return, and some years lose money.

When the answer flips

• PSLF-eligible jobs. If you’re pursuing PSLF at an FQHC, government or 501(c)(3) employer, extra loan payments shrink what would be forgiven tax-free. For these dentists, extra money usually goes to savings and investing instead. See PSLF for dentists.
• Low-rate loans. If you’ve refinanced to a rate well below 8.07%, the guaranteed return of prepaying is lower, and investing looks relatively better.
• Mixed approach. Some dentists split: take the match, fund a Roth or retirement account, and prepay the loan with what’s left. There’s no single right split.

Situation	What usually gets priority after the match
Private practice, loans at 8.07%	Extra loan payments are a strong, guaranteed use of cash
PSLF-eligible employer	Retirement and other saving; pay only the required loan amount
Refinanced to a lower fixed rate	A more even split between investing and prepaying
Credit card balances	Pay those off first

Not sure which path you’re on? Run your numbers in the refinance vs forgiveness tool.

Roth vs traditional

Most 401(k) plans offer both options, per Investor.gov:

• Traditional: contributions go in before tax. You pay tax on the money and its growth when you withdraw.
• Roth: contributions go in after tax. Growth and qualified withdrawals are generally tax-free.

You can split contributions between the two. IRAs work the same way, with traditional and Roth versions.

Two dentist-specific wrinkles:

1. RAP. Your RAP payment is based on total AGI. Traditional contributions lower AGI, so they lower the payment. $10,000 pre-tax cuts a RAP payment by about $1,000 a year above $100,000 of AGI. Roth contributions don’t.
2. Roth IRA income limits. For 2026, the ability to contribute to a Roth IRA phases out between $153,000 and $168,000 for single filers. For married couples filing jointly, it’s $242,000 to $252,000 (IRS). An associate with $180,000 of income may already be at or above the single range.

A tax professional can help if your income is near those ranges.

Index funds, in plain English

An index fund is a mutual fund or ETF that tries to match the return of a market index before fees, per Investor.gov. It’s a passive strategy.

Investor.gov notes that passive funds usually trade less, which can mean lower costs, fewer taxable gains and lower fees than actively managed funds. Over time, higher fees can significantly lower returns.

Investor.gov notes target date funds are a popular choice in 401(k) plans. Look up each fund’s expense ratio in your plan before you choose.

Robo-advisers vs doing it yourself

Robo-advisers ask you a questionnaire about goals, time horizon and risk tolerance. Then they build and manage a portfolio for you, per the SEC. They often charge less than traditional advisers, and some have lower minimums.

The SEC also notes that the amount of human help varies widely. Some offer an investment professional; others only technical support. Before you sign up, read the firm’s Form ADV brochure for fees and services.

Doing it yourself usually means opening an IRA or brokerage account and buying a few broad index funds. It costs less but requires you to rebalance and stay the course in bad markets.

Options to compare include automated platforms such as Betterment and M1. Fidelity, Schwab and Vanguard offer both automated and do-it-yourself accounts; we’re not paid by them. Compare total cost: the platform or advisory fee plus the funds’ own expenses.

What to do next

1. Build the emergency fund and clear any card balances.
2. Enroll in your 401(k) or SIMPLE IRA at least to the full match.
3. Pick your loan path with the refinance vs forgiveness tool.
4. Decide Roth vs traditional with RAP and your income in mind.
5. Choose a low-cost approach, robo or do-it-yourself, and automate contributions.
6. Revisit yearly as your income, rate and loan path change. See your first associate paycheck budget.