Most teachers, nurses, and nonprofit employees know they have a 403(b) through work. Many of them assume that’s the retirement account — full stop — and that a Roth IRA is something for other people, people without a pension or a halfway decent workplace plan. This assumption is understandable. It’s also quietly costly.
The short answer: if you have earned income and your modified adjusted gross income falls below the Roth IRA phase-out threshold, you can contribute to both a 403(b) and a Roth IRA in the same year. The two accounts are not mutually exclusive. For most public school teachers, hospital nurses, and nonprofit employees earning in the $50,000 to $90,000 range, using both — in the right order — is meaningfully better than maxing out the 403(b) alone.
I spent 30 years as a Warning Coordination Meteorologist at the National Weather Service, and the analogy that fits here is one I’ve used a hundred times. At the NWS, we never made a high-stakes warning decision from a single forecast model. We’d run the GFS, the NAM, the European ECMWF model, and compare the outputs. When models converged, we had high confidence. When they diverged, we knew there was uncertainty — and we had to prepare for multiple scenarios. Your retirement accounts work the same way. A 403(b) gives you one kind of forecast protection: pretax contributions that reduce your tax bill right now. A Roth IRA gives you the other: tax-free income in retirement, completely independent of whatever your tax bracket looks like 25 years from now. Running both accounts means you’re not betting your entire retirement on a single model of what future tax rates will be. That’s not caution — that’s sound risk management.
What Is a 403(b) and How Does It Differ From a 401(k)?
A 403(b) is the workplace retirement account for employees of public schools, hospitals, universities, churches, and other nonprofits — essentially anyone whose employer is a 501(c)(3) organization or a public school system. It functions almost identically to a 401(k): contributions come out of your paycheck pretax, the money grows tax-deferred, and you pay ordinary income tax when you withdraw in retirement.
The contribution limit for 403(b) plans is the same as 401(k)s and adjusts periodically — always verify the current limit at irs.gov before planning, but the limit has recently been in the $23,000 to $23,500 range per year. If you’re 50 or older, catch-up contributions allow you to contribute an additional $7,500 on top of the standard limit, which is a significant advantage in your peak earning years.
One meaningful difference from 401(k) plans: 403(b) plans, particularly in public school districts, often have limited investment menus. You may find yourself choosing between a handful of annuity products and a small selection of mutual funds with expense ratios that are higher than they should be. This is a real cost — not a rounding error. The difference between a 1.0% expense ratio and a 0.05% expense ratio on a $100,000 investment compounded over 30 years is staggering. If your 403(b) plan offers a low-cost index fund, use it. If your only options are variable annuities and high-fee managed funds, that’s all the more reason to also contribute to a Roth IRA where you choose your own brokerage and your own funds.
Why You Still Want a Roth IRA on Top of Your 403(b)
A 403(b) alone has two structural limitations that a Roth IRA directly addresses.
First: tax diversification. Every dollar in your 403(b) is pretax money. When you withdraw it in retirement, it’s taxed as ordinary income — every single dollar. If you retire with $500,000 in a 403(b) and nothing else, your entire retirement is taxable. You’re completely dependent on your future tax bracket, and nobody knows what that bracket will look like. A Roth IRA grows and withdraws completely tax-free. That second bucket gives you flexibility in retirement to manage your taxable income — to decide which pot to draw from in which years — and to avoid tipping into a higher bracket when you need more cash. That flexibility is worth more than most people realize until they’re actually in retirement trying to manage it.
Second: no required minimum distributions. Traditional 403(b) accounts — like 401(k)s and traditional IRAs — require you to start taking distributions at age 73, whether you need the money or not. Those mandatory withdrawals can pile on top of your other income, push you into a higher bracket, and increase how much of your Social Security benefit gets taxed. Roth IRAs have no required minimum distributions during the original owner’s lifetime. You can let the money compound indefinitely, draw from it selectively when it’s advantageous, or pass it to a spouse or heirs. That’s a genuine long-term advantage, especially if you’ve also got a pension providing baseline income.
The Contribution Order That Works for Most Teachers and Nurses
Here’s the sequence that makes financial sense for the majority of 403(b) holders in the 22% or 24% tax bracket:
Step 1: Contribute to the 403(b) up to your employer match. If your employer matches contributions up to 3% of your salary, put in at least 3%. This is free money with an immediate 100% return. Never walk away from it. If your employer doesn’t offer a match — which is true for some school districts and many smaller nonprofits — this step is still worth doing because of the pretax savings, but it’s less urgent than it is when there’s a match involved.
Step 2: Max out a Roth IRA. The annual Roth IRA contribution limit — currently in the $7,000 range for those under 50, with an additional catch-up amount for those 50 and older — verify at irs.gov for the current figure — should be your next priority after capturing any match. For most teachers and nurses in the 22% bracket, the Roth IRA gives you something your 403(b) can’t: a tax-free bucket with investment flexibility you choose, no required minimum distributions, and long-term tax diversification. You pick the brokerage. You pick the funds. You’re not limited to what your HR department negotiated.
Step 3: Return to your 403(b). After the Roth IRA is funded, increase your 403(b) contributions toward the annual limit. The pretax deduction still reduces your current taxable income, and if your plan has low-cost index fund options, you’re building tax-deferred wealth efficiently.
This order isn’t universal. If you’re in the 32% bracket or higher, the upfront tax savings from the 403(b) may genuinely outweigh the Roth’s long-term tax-free advantage — the math shifts at higher incomes. But for a teacher earning $58,000 or a hospital nurse at $72,000, this sequence is hard to argue against.
What If You Also Have a Pension?
Many teachers — and some hospital workers, especially in public systems — have a defined benefit pension alongside their 403(b). Counterintuitively, a pension actually makes the Roth IRA more valuable, not less.
Here’s why: your pension provides a predictable, taxable income stream in retirement. If your pension already covers your essential living expenses and you also have a large 403(b) balance generating mandatory withdrawals at 73, those distributions stack on top of the pension income. That stacking pushes you into a higher bracket than you’d otherwise be in. A Roth IRA sidesteps that entirely. You draw from it in years where your taxable income is already elevated — and pay nothing on the Roth withdrawal. The pension is your guaranteed forecast. The Roth IRA is your reserve fund for scenarios the guaranteed income alone doesn’t handle cleanly.
Income Limits: Can You Actually Contribute to a Roth IRA?
The Roth IRA has income phase-out thresholds that adjust periodically — always verify the current figures at irs.gov, because these numbers change. For most teachers and nurses earning in a moderate income range, the standard direct Roth IRA contribution is available at the full limit. If your income approaches or exceeds the phase-out, the Backdoor Roth IRA conversion strategy may be an option, though it involves additional steps and potential tax considerations, particularly if you have other traditional IRA balances (the "pro-rata rule" — worth understanding before you proceed).
For married couples where one spouse is a teacher or nurse and the other has a different income source: if your household income is approaching the phase-out range, calculate your MAGI carefully before the year ends. Timing an extra 403(b) contribution to reduce your MAGI below the threshold is a legitimate strategy worth running with a tax professional if you’re close to the line.
Choosing Where to Open the Roth IRA
For most 403(b) holders supplementing with a Roth IRA, the right home for that account is a low-cost brokerage: Fidelity, Vanguard, or Schwab. All three offer Roth IRAs with no account minimums and access to index funds with expense ratios starting around 0.03%. The investment flexibility here — versus the constrained menu inside many 403(b) plans — is real and substantial. You can hold a total market index fund, a three-fund portfolio, or a target-date fund, and you’re not paying the elevated fees that too many 403(b) annuity products carry. If you’ve never opened a Roth IRA before, Fidelity is often the smoothest onboarding experience for first-timers. Account setup takes 15 minutes online.
The Decision Is Cleaner Than It Looks
If you’re a teacher, nurse, or nonprofit employee with earned income and a modified AGI under the Roth IRA limits, the answer for most people in the 22-24% bracket is: yes, have both. Capture the match in the 403(b), fund the Roth IRA next, and then circle back to the 403(b). You end up with tax-diversified retirement savings that are more resilient to whatever the tax code looks like when you need the money — which is exactly the same core logic that applies when weighing a Roth 401(k) against a traditional 401(k) at any income level. The specific account type is different; the underlying principle of not betting everything on a single tax scenario is the same.
Open the Roth IRA this weekend if you don’t have one. The clock on tax-free growth starts the day the account exists, not the day you’ve figured out every detail.
For a deeper foundation on why low-cost index funds beat most of what gets sold inside 403(b) plans, The Simple Path to Wealth by JL Collins is the clearest, most practical guide available — non-condescending and directly applicable to the investment decisions you’re making right now. If you want something specifically written for the financial realities that nurses and teachers disproportionately face — wage gaps, interrupted careers, single-income households — Women and Money by Suze Orman addresses pension decisions, income gaps, and retirement account strategy in a way most generic guides skip entirely. And for building the habit of automatic 403(b) and Roth IRA contributions so they happen without willpower, The Automatic Millionaire by David Bach walks through exactly how most teachers and nurses who’ve quietly built significant wealth actually did it — not through discipline, but through automation.