CRNA Tax Planning: How to Reduce Your Tax Bill at $200K–$380K Income

CRNAs sit in a tax tier that most financial advisors almost never encounter — high enough income for the 35% federal bracket, additional Medicare surtax, and Roth IRA phase-outs, but with tax-deferral tools (like solo 401(k)s and S-corp elections) that can pull $50,000–$100,000+ of annual income out of reach of federal taxes. The gap between an optimized and unoptimized CRNA tax strategy is often $15,000–$30,000 per year.

This guide covers the core tax planning moves for CRNAs — in order of impact, with real numbers.

What bracket are you actually in?

For 2026, a single CRNA earning $240,000 of gross W-2 income faces a top marginal rate of 35% on the portion above $256,225 — but most of that $240K sits in the 32% bracket (which starts at $201,775).¹ Here's the relevant range for CRNAs:

"Taxable income" is what's left after the standard deduction ($16,100 single / $32,200 MFJ in 2026) and any above-the-line deductions. A W-2 CRNA at $240,000 who contributes $49,000 to a 403(b)+457(b) combination has $191,000 in taxable income — comfortably in the 24% bracket rather than the 32% bracket. That's a real difference: every dollar you move from 32% to 24% is an 8-cent tax reduction.

Strategy #1: Max retirement contributions first (highest leverage move)

Every dollar contributed pre-tax to a qualified retirement account reduces your taxable income dollar-for-dollar. At 32% marginal rate, $10,000 in contributions costs you only $6,800 out of pocket after tax savings. At 35%, only $6,500. This is the largest single tax lever available to CRNAs.

W-2 CRNA at a hospital or health system

Most non-profit hospital systems offer both a 403(b) and a governmental or non-profit 457(b). These are separate plans with completely separate IRS limits — you can contribute the maximum to both simultaneously:

• 403(b): $24,500 employee deferral in 2026 ($32,500 if age 50+; $35,750 at ages 60–63 with the SECURE 2.0 super catch-up)²
• 457(b): Another $24,500, completely separate from the 403(b) limit.
• Combined maximum: $49,000/year before any employer match. A CRNA at $250,000 who maxes both reduces federal taxable income to roughly $185,000 — staying below the 32% bracket entirely.

Most CRNAs contribute only to the 403(b). Adding the 457(b) — with the same dollar, same pre-tax treatment, same investment options — is typically free additional tax deferral that most nurses miss at open enrollment.

1099 / S-corp CRNA

Independent CRNAs can't access hospital plans, but the solo 401(k) provides higher capacity:

• Employee deferral component: Up to $24,500 (same limit as W-2 plans)
• Employer contribution component: Up to 25% of your S-corp W-2 salary, or ~20% of net Schedule C income (after SE tax deduction)
• Total cap: $72,000 for 2026 under IRC §415(c)²

Example: A CRNA with an S-corp pays herself a $150,000 W-2 salary. Employee deferral: $24,500. Employer contribution: 25% × $150,000 = $37,500. Total: $62,000 in the solo 401(k). To reach the $72,000 cap, she'd need a salary closer to $190,000 (so 25% × $190K = $47,500 + $24,500 deferral = $72,000). The optimal salary for maxing out the solo 401(k) is around $190,000.

Note: The solo 401(k) must be opened before December 31 of the tax year to make employee deferral contributions for that year. Employer contributions can be made up to the business tax return deadline (including extensions). Missing the December 31 deadline for the employee deferral is a common and expensive mistake.

Strategy #2: The S-corp election for 1099 CRNAs

The S-corp election is the most discussed tax move for independent CRNAs — and worth understanding carefully, because it's often oversimplified.

What it saves

A sole proprietor CRNA pays self-employment tax of 15.3% on the first $184,500 of net income (12.4% Social Security + 2.9% Medicare), plus 2.9% on everything above the SS wage base.³ An S-corp pays you a "reasonable salary" (subject to FICA), and the remaining profit flows as a distribution — not subject to the SE/FICA tax.

Illustration: A CRNA nets $300,000 from 1099 contracts.

• Sole proprietorship: SE tax ≈ $184,500 × 15.3% + $115,500 × 2.9% = $28,229 + $3,350 = $31,579
• S-corp with $130,000 W-2 salary: FICA on $130,000 × 15.3% = $19,890. Remaining $170,000 distributes without SE tax.
• Annual FICA savings: approximately $11,700

What it costs

• Separate S-corp federal and state tax returns (~$1,500–$3,000/year with a CPA)
• Payroll processing for the W-2 salary (~$500–$1,200/year for a payroll service)
• State franchise fees or annual registration fees (varies by state; California's $800 minimum franchise tax is significant)
• Additional complexity in solo 401(k) administration

Net breakeven: The S-corp election typically saves more than it costs once net 1099 income reaches approximately $80,000–$100,000/year. At a CRNA income of $250,000+, the annual FICA savings are almost always 3–5× the administrative cost. Use our 1099 CRNA net income calculator to model the full picture including salary, distributions, and tax.

Reasonable salary: the IRS requirement

The IRS requires S-corp owner-employees to pay themselves a "reasonable salary" — compensation that a similar employee would earn for the same work. For CRNAs, reasonable salary is well-established in the range of $100,000–$180,000 depending on hours worked and geography. Taking a $30,000 salary on $300,000 of revenue invites scrutiny. The closer to market rate, the safer. A good rule: salary should reflect what a locum agency would charge for your services, not just the minimum that maximizes the FICA benefit.

When to elect

To be treated as an S-corp for a full tax year, you must file Form 2553 with the IRS by March 15 of that year (for a calendar-year entity). Late elections can be retroactive if IRS approves, but timing matters. New 1099 CRNAs often start as a single-member LLC (Schedule C) and convert to S-corp in year two or three once income stabilizes above the threshold.

Strategy #3: Above-the-line deductions for 1099 CRNAs

These deductions reduce adjusted gross income (AGI) directly, before calculating income tax. They're available even if you take the standard deduction — and at CRNA income, they add up quickly.

• SE tax deduction (IRC §164(f)): Deduct 50% of your SE tax as an above-the-line deduction. On $300,000 of net 1099 income, SE tax is ~$26,000; you can deduct $13,000 from gross income before calculating everything else.
• Self-employed health insurance (IRC §162(l)): 100% of premiums for health, dental, and qualifying long-term care insurance — for yourself and your family — deductible above the line. A family CRNA health plan runs $1,500–$2,200/month ($18,000–$26,400/year), all deductible. Limitation: you can't claim this if you're eligible for subsidized coverage through a spouse's employer plan.
• Solo 401(k) employer contribution: The employer-side contribution to your solo 401(k) is a business deduction that reduces SE income before the SE tax calculation, effectively compounding the savings.

Strategy #4: Quarterly estimated taxes

1099 and S-corp CRNAs don't have automatic withholding on distributions. Missing quarterly payments means IRS underpayment penalties even if you pay your full balance in April.

2026 estimated tax due dates:

• Q1 (Jan–Mar income): April 15, 2026
• Q2 (Apr–May income): June 16, 2026
• Q3 (Jun–Aug income): September 15, 2026
• Q4 (Sep–Dec income): January 15, 2027

The safe harbor rules (no underpayment penalty if you meet either):

• Pay 90% of your current year's actual tax liability by year-end, OR
• Pay 100% of last year's total tax liability (110% if prior-year AGI exceeded $150,000)⁴

For most CRNAs, the 110% of prior-year rule is the simpler safe harbor. If your 2025 tax bill was $60,000, you need to pay $66,000 in 2026 estimated taxes (divided across four payments) to avoid the penalty — regardless of what you actually owe in 2026. This lets you defer final reconciliation to April without penalty.

Practical approach: Have your S-corp payroll withhold taxes on the W-2 salary at a level close to your total estimated liability. Federal withholding on wages satisfies the quarterly requirement even though it's deposited more frequently — which simplifies quarterly payment administration significantly.

Strategy #5: Multi-state tax for locum and travel CRNAs

CRNAs who work in multiple states face a non-trivial state tax burden. Most states tax income earned within their borders, even for non-residents. As a locum CRNA doing two-week assignments in several states, you may need to file non-resident returns in each state where you worked — even for short stints.

High-priority planning for multi-state CRNAs:

• Domicile vs. nexus: Your state of domicile (legal home) taxes your worldwide income. Each state where you physically worked may tax the income earned there. When states have reciprocity agreements, non-resident returns aren't required — but few states have reciprocity with each other for this purpose, and CRNAs working across wide geographies can have obligations in 5–8 states.
• No-income-tax states: Locum assignments in Texas, Florida, Nevada, Washington, Wyoming, South Dakota, and Tennessee generate income not subject to state tax. Where you have discretion over assignment location, this matters. A two-month assignment in Florida vs. California at $280,000 annualized means approximately $17,000–$25,000 less in state tax on that income.
• Duration-based nexus: Some states trigger nexus (and tax obligation) after as few as 14–30 days of work within the year. Track your time in each state for every tax year.
• Credit for taxes paid to other states: Your domicile state typically allows a credit for income taxes paid to other states. This reduces (but doesn't eliminate) double taxation — and the credit calculation is complicated enough that a CPA who handles multi-state returns is essential.

Strategy #6: AGI management

Your adjusted gross income controls eligibility for several valuable programs. Reducing AGI isn't just about paying less tax directly — it can unlock or protect significant additional benefits.

PSLF: lower AGI = lower IBR payment = larger forgiveness

CRNAs employed at non-profit hospital systems qualify for Public Service Loan Forgiveness on income-driven repayment. Monthly IBR/SAVE payments are calculated as a percentage of discretionary income (AGI minus 225% of the poverty line). A $49,000 retirement contribution at a W-2 CRNA at $240,000 brings AGI down to ~$191,000, cutting the annual IBR payment by roughly $3,920/year — money that instead accrues toward tax-free forgiveness at month 120. Over 10 years, the AGI management strategy compounds. See the PSLF calculator to model the interaction.

Roth IRA: phase-out at $153K–$168K MAGI

The 2026 Roth IRA contribution limit is $7,500 ($8,600 at age 50+).⁵ The ability to contribute phases out completely for single filers with MAGI above $168,000 (MFJ: $252,000). A W-2 CRNA at $220,000 gross income who contributes $49,000 to a 403(b)+457(b) has MAGI of approximately $171,000 — still above the phase-out. To make direct Roth IRA contributions, they'd need additional AGI-reducing deductions, or use the backdoor Roth conversion strategy (available at any income level). See the Roth IRA guide for nurses for backdoor mechanics and the pro-rata rule.

ACA premium subsidies for 1099 CRNAs

If you're a 1099 CRNA between contracts, or in a transition year before you elect group coverage, your AGI relative to the federal poverty level determines ACA marketplace subsidy eligibility. At $250,000+ AGI you'll receive no subsidy. But in a part-year 1099 situation where AGI might drop significantly, large retirement contributions and business deductions can matter for ACA eligibility. This is highly situational but worth flagging during transition years.

The Additional Medicare Tax on high earners

The Affordable Care Act added two taxes on higher-income earners that CRNAs should plan around:

• 0.9% Additional Medicare Tax (IRC §3101(b)(2)): Applies to the portion of wages, salary, and SE income above $200,000 for single filers ($250,000 for MFJ). This tax is not inflation-adjusted — the thresholds have been fixed since 2013, meaning a larger share of CRNA incomes hit this level each year. A CRNA with $280,000 in W-2 wages pays 0.9% × $80,000 = $720/year in additional Medicare tax. Not enormous, but it layers on top of the employer FICA the hospital already pays.³
• 3.8% Net Investment Income Tax (IRC §1411): Applies to net investment income (dividends, capital gains, rental income, passive business income) for those whose MAGI exceeds the same thresholds ($200K single / $250K MFJ). CRNAs with investment portfolios who are above these thresholds pay 3.8% on all investment income above the threshold. The tax on CRNA earned income does not reduce this threshold — both taxes apply separately. Tax-loss harvesting, municipal bonds in taxable accounts, and Roth conversions in lower-income years can reduce long-term NIIT exposure.

Year-end tax planning checklist for CRNAs

These moves must be completed by December 31 of the tax year — not April 15:

• ☐ Open solo 401(k) if you have 1099 income and haven't yet (December 31 deadline for new plan establishment)
• ☐ Make employee deferral contribution to solo 401(k) (December 31 deadline for this component)
• ☐ Confirm 403(b) and 457(b) max-out contributions are on track
• ☐ Review if an S-corp election for next year makes sense (Form 2553 due March 15)
• ☐ Consider Roth conversion if income was lower than expected this year (conversion to Roth uses lower bracket room)
• ☐ Harvest tax losses in taxable brokerage accounts to offset capital gains
• ☐ Confirm health insurance coverage start date (affects SEHI deduction for the year)
• ☐ Pay Q4 estimated taxes due January 15 before the deadline

These moves must be completed by the tax filing deadline (April 15 + extensions):

• ☐ Make employer contribution to solo 401(k) (up to tax return due date including extensions)
• ☐ Make SEP-IRA contribution if using SEP instead of solo 401(k) (same deadline)
• ☐ Backdoor Roth IRA contribution for the prior tax year

1. 2026 federal income tax brackets per IRS Rev. Proc. 2025-32. IRS 2026 inflation adjustments including OBBBA amendments. Standard deduction: $16,100 single / $32,200 MFJ for 2026.
2. 2026 retirement contribution limits: 401(k)/403(b)/457(b) employee deferral $24,500; catch-up at 50+ $8,000; SECURE 2.0 super catch-up at 60–63 $11,250; IRC §415(c) annual additions limit $72,000. Per IRS Rev. Proc. 2025-43.
3. Self-employment tax: 15.3% (12.4% SS + 2.9% Medicare) on net SE income up to $184,500 SS wage base; 2.9% Medicare on SE income above. Additional 0.9% Medicare Tax on wages/SE income exceeding $200,000 single / $250,000 MFJ under IRC §3101(b)(2). IRS: Self-Employment Tax. SS wage base $184,500 for 2026 per SSA.
4. Estimated tax safe harbor rules: 90% of current year tax or 110% of prior-year tax (if prior-year AGI >$150,000) per IRC §6654 and IRS Publication 505 (2026): Tax Withholding and Estimated Tax.
5. 2026 Roth IRA contribution limit $7,500 ($8,600 at age 50+). Phase-out: $153,000–$168,000 MAGI for single filers; $242,000–$252,000 for married filing jointly. Per IRS announcement Oct 2025.

Tax values verified against 2026 IRS publications and Rev. Proc. 2025-32. Tax law changes frequently; verify current-year limits with a licensed CPA or tax professional before acting.

Disclaimers: NurseAdvisorMatch is a referral service, not a licensed advisory firm. We may receive compensation from professionals in our network. Content is for informational purposes only and does not constitute financial, tax, or investment advice.