Why Residency Is the Best Time to Start a Roth IRA (And How to Do It)

You survived Step exams. You matched. You are finally earning a real paycheck. And right now, during the years when your salary feels the tightest, you have a financial superpower that will never come back: a low tax bracket.

Most physicians do not start investing seriously until they become attendings. That is a six- or seven-figure mistake. This guide explains why residency is the single best window to fund a Roth IRA, how to do it step by step, and how it fits alongside student loans, employer plans, and the rest of your financial life.

Why Residency Is Uniquely Powerful for Roth Contributions

Here is the core insight: you will never be in a lower federal tax bracket again.

A PGY-1 earning $70,000 in 2026 has a taxable income of roughly $53,900 after the $16,100 standard deduction. That places almost all of their income in the 12% bracket and only a sliver in the 22% bracket.

Their effective federal tax rate is approximately 13-14%.

Compare that to a newly minted attending earning $300,000. That physician's marginal rate is 35%, and their effective rate is north of 24%. A subspecialist earning $450,000 or more hits the 37% bracket.

Every dollar you put into a Roth IRA during residency is taxed at that low resident rate — and then never taxed again. Not on the growth. Not on the withdrawals. Not ever.

Roth IRA Basics for 2026

A Roth IRA is a retirement account funded with after-tax dollars. You pay tax now; you pay nothing later.

As a resident earning $65,000-$75,000, you are well under the income limits. No tricks needed.

The Math: Start Now vs. Start as an Attending

Scenario A: Start during residency — $7,500/year for 4 years at 7% average annual return:

• Total contributed: $30,000
• Value after 4 years: ~$33,600
• Value at age 65 (untouched, no more contributions): ~$298,000

Scenario B: Wait until attending at age 32 — same contributions, 4 fewer years of compounding:

• Cost of the 4-year delay: $100,000-$130,000 in lost tax-free growth

$30,000 invested during residency → nearly $300,000 tax-free. That is compound interest over 35+ years.

The Backdoor Roth IRA

Once your income exceeds $168,000 (single) in 2026, you cannot contribute directly to a Roth IRA. Every attending hits this.

The backdoor Roth IRA workaround:

1. 1.Contribute $7,500 to a non-deductible traditional IRA
2. 2.Immediately convert to Roth IRA
3. 3.No tax owed (already paid, no earnings yet)

Pro-rata rule warning: If you have pre-tax money in any traditional/SEP/SIMPLE IRA, the conversion becomes partially taxable. Fix: roll pre-tax IRA balances into your employer 401(k)/403(b).

For residents: You don't need the backdoor yet. But don't open a traditional IRA with deductible contributions now — it creates a pro-rata headache later. Go Roth directly.

Roth 403(b) vs. Roth IRA

Can you do both? Yes. Limits are separate. $7,500 + $24,500 = $32,000 total Roth space.

Priority: Employer match first → Roth IRA → additional 403(b).

The PSLF Interaction

If pursuing Public Service Loan Forgiveness, the calculus changes.

Pre-tax 403(b) contributions reduce your AGI, which reduces your IDR payments. Roth contributions don't.

Example on $70K salary with $250K loans:

• No 403(b): AGI $70K → IDR ~$400/month
• $5K pre-tax 403(b): AGI $65K → IDR ~$360/month
• Annual savings: ~$480 in lower loan payments (money you never repay because PSLF forgives the balance)

Decision framework:

• Pursuing PSLF with $200K+ loans? Pre-tax 403(b) first (lower AGI), then Roth IRA
• Not pursuing PSLF? Roth everything — lock in the low tax bracket
• Uncertain? Default to Roth IRA — if you leave public service, you'll be glad

How to Open a Roth IRA

Best brokerages: Fidelity, Vanguard, or Schwab. Zero-fee Roth IRAs, no minimums, excellent index funds.

1. 1.Go to fidelity.com / vanguard.com / schwab.com → "Open an Account"
2. 2.Select "Roth IRA"
3. 3.Provide personal info (SSN, DOB, employment)
4. 4.Link checking account, set up transfer
5. 5.Choose your investments (don't skip this — see below)
6. 6.Set up automatic monthly contributions ($625/month to max out)

What to Invest In

Option 1: Target-Date Fund (Simplest)

• Vanguard Target Retirement 2065 (VLXVX) — 0.08% expense ratio
• Fidelity Freedom Index 2060 (FDKLX) — 0.12%
• One fund, automatically adjusts over time. Set it and forget it.

Option 2: Total Market Index Fund

• Vanguard Total Stock Market (VTSAX/VTI) — 0.03%
• Fidelity Total Market (FSKAX) — 0.015%
• Maximum simplicity, maximum growth potential.

Option 3: Three-Fund Portfolio

• 60-70% U.S. Total Stock Market
• 20-30% International Total Stock Market
• 0-10% U.S. Total Bond Market

What matters most: Low expense ratios (<0.10%), broad diversification, consistency. Don't pick individual stocks.

The HSA: Your "Stealth Roth"

If your program offers a High-Deductible Health Plan, you unlock the HSA — the only account with a triple tax advantage:

1. 1.Contributions are tax-deductible
2. 2.Growth is tax-free
3. 3.Withdrawals for medical expenses are tax-free

2026 limits: $4,400 individual / $8,750 family.

The strategy: Pay medical expenses out of pocket, invest HSA money in index funds, save receipts. Reimburse yourself tax-free years later. No time limit on reimbursement.

The Priority Waterfall

On ~$4,500/month take-home:

1. 1.Emergency fund — $5,000-$10,000 in HYSA first
2. 2.Employer 403(b) match — capture the free money (~$175/month)
3. 3.HSA (if eligible) — $367/month
4. 4.Roth IRA — $625/month
5. 5.Additional 403(b) — pre-tax if PSLF, Roth if not
6. 6.Extra debt payments (high-interest non-student-loan debt only)

Realistic target: Employer match + Roth IRA = ~$800-$900/month. Aggressive but achievable.

Common Mistakes

1. 1.Depositing but not investing — Money sitting in cash earns 4% instead of 7-10%. Over 30 years, this costs hundreds of thousands. After depositing, buy investments.

1. 1.Choosing expensive funds — 1.0% vs 0.03% expense ratio = ~$150,000 difference over 35 years. Stick with index funds.

1. 1.Panic selling in downturns — Markets will drop 20-30% at some point. You have 35+ years. Stay the course.

1. 1.Waiting until you "have more money" — Build the habit now. $300/month is better than $0/month.

1. 1.Making extra loan payments instead — If pursuing PSLF, extra payments are literally throwing money away. Those dollars belong in a Roth IRA earning tax-free returns for 35 years.

1. 1.Overcomplicating your portfolio — One target-date fund is all you need. Simplicity reduces the temptation to tinker and underperform.

The Bottom Line

Residency is financially uncomfortable. But you have one advantage that vanishes the moment you sign your first attending contract: a low tax bracket.

Every dollar in a Roth IRA during these years is taxed at 12-22% and grows tax-free forever. The same dollar as an attending is taxed at 32-37%.

Open the account today. Set up automatic contributions. Buy a target-date fund. Then go back to the ICU and forget about it for 30 years.

Future you — the attending with the paid-off house and the seven-figure retirement account — will be glad you did.