Low Income? Huge Opportunity.
Residency is the only time in your career you will be in a low tax bracket. This is the "Golden Window" to perform Roth conversions and file strategic student loan returns.
A guide by Taxstra Tax & Accounting — CPA-led tax strategy for business owners
Written by Bryan Martin, CPA, Managing Partner and Founder of Taxstra. Last updated June 10, 2026.
Quick answer
Residency is the cheapest tax window of a physician's career. While your bracket is low, prioritize Roth contributions and Roth conversions of old pre-tax accounts, treat moonlighting income as a business with its own deductions, and build the filing habits that matter later. The window closes permanently the day your attending contract starts.
Don't Wait Until Your Attending Check
Why 'I'll worry about money later' is the most expensive sentence in medicine
The biggest mistake residents make is thinking, "I'll worry about money when I make real money."
By waiting, you miss the chance to lock in 12% or 22% tax rates on Roth conversions. You miss the low-income tax filings that set your income-driven loan payments at their lowest. You develop bad spending habits that scale up with your income.
"Almost every attending I meet wishes they had done two things in residency: started Roth contributions early and kept living on a resident budget for two more years."
Bryan Martin, CPA
The "I'll Do It Later" Cost
- Forgetting to file a tax return as an MS4 (Result: your first loan payments get set from your intern salary instead of a $0-income return)
- Choosing Traditional 401k instead of Roth during residency
- Skipping the student loan interest deduction while your income still qualifies
- Buying a 'Doctor House' immediately with a physician loan (House Poor)
- Signing an employment contract without a review (Non-competes, Tail coverage)
The Resident Playbook
Strategies for future millionaires — build the foundation while the tax stakes are low
Roth Everything
You are in the lowest tax bracket you'll ever see. Pay the tax now. Stuff your Roth IRA and Roth 403(b). Your future high-income self will thank you.
The $0-Income Return
Filing a tax return in your final year of Med School (even with $0 income) documents the income your loan servicer uses for income-driven repayment. That return is what can set your Intern Year payments to $0/month instead of a payment based on your intern salary.
Moonlighting Management
Picking up shifts? That's 1099 income. Use it to open a Solo 401(k) or deduct your home office/computer/boards prep materials.
Disability Insurance
Get 'Own-Occupation' coverage now while you are young and healthy. Residency programs often offer simplified underwriting (no medical exam).
Contract Review
Before you sign your Attending contract, let us review the tax implications. Is the signing bonus structured as a loan? Is the productivity bonus achievable?
Live Like A Resident
The secret to wealth: Continue living on your resident budget for 2-5 years after becoming an attending. Use the surplus to destroy debt and buy assets.
The Roth Conversion Window
Buying tax-free growth at a massive discount — while the discount lasts
Maybe you worked before med school and have an old Traditional 401(k) or IRA.
As an attending, converting that to Roth would cost you 37%+ in taxes. But as a resident, you might only pay 12% or 22%.
We analyze "filling the bracket." We calculate exactly how much you can convert before bumping into the next tax tier. This is essentially buying tax-free growth at a massive discount.
| Cost of a $50k Conversion | Tax Math |
|---|---|
| Tax Cost as Resident (22%) | $11,000 |
| Tax Cost as Attending (37%) | $18,500 |
| Tax Savings | $7,500 |
Plus: That $50k grows tax-free forever. At 7% over 30 years, it becomes ~$380k tax-free.
Your Year-by-Year Tax Checklist
What to actually do, from MS4 through your first attending contract
Tax planning in training isn't one decision — it's a short sequence of small, dated moves. Miss one, and you can't go back for it. Here's the sequence we walk residents through.
MS4 / final year of med school. File a federal tax return even if you earned nothing. It feels pointless — it isn't. That $0-income return is what your loan servicer uses to set your income-driven repayment amount when you certify as an intern, which is how residents end up with $0/month payments during intern year. Skip the return, and your first-year payments get calculated off your intern salary instead.
Intern year. You only earn a half year of salary — often $30,000–$35,000 of taxable income — which can leave you in the 12% federal bracket. That makes intern year the single cheapest year of your life to fund Roth accounts and convert old pre-tax balances. Open a Roth IRA, contribute what you can, and if your program offers a Roth 403(b), point your deferrals there.
PGY-2 and PGY-3. Claim the student loan interest deduction while you still qualify — it's an above-the-line deduction of up to $2,500, and the income phase-out means most attendings lose it forever. If you're married (or about to be), have someone run the filing-status math before you file — the wrong checkbox can raise your loan payment by more than it saves in tax. We cover that on our student loan tax strategy page.
Final year of training. This is the last call for cheap Roth conversions. The year you finish is a split year — half resident salary, half attending salary — so the bracket math has to be done on projected full-year income, before December 31, not at tax time. It's also when your signing bonus lands: it's fully taxable, and employers routinely under-withhold on it, so set aside 30–40% before you spend a dollar.
Moonlighting in Residency
Extra shifts are 1099 income — which means business deductions, if you claim them
Moonlighting pay almost always arrives on a 1099, not a W-2. That makes you a sole proprietor with a Schedule C — and it changes which expenses count.
Board exam fees and prep materials used for the moonlighting work, DEA and state license costs allocable to it, malpractice premiums you pay for those shifts, and a home office where you do your charting can all be deducted against the 1099 income. A resident earning $15,000 moonlighting who claims $3,000 of legitimate expenses and puts part of the remainder into a Solo 401(k) keeps dramatically more of every shift.
Resident Tax FAQ
Common questions from residents and fellows
Start Strong.
The decisions you make in residency compound for decades. Let's get them right.
Find Out What You're Overpaying in Taxes
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