The IRS has been aware of tax compliance issues in the travel nursing industry for years. The basic structure — tax-free stipends for workers away from home — is entirely legitimate when used correctly. But the same structure is easy to abuse, and the IRS has developed a clear picture of what abuse looks like. The red flags below are patterns that either directly trigger examination or significantly raise audit risk when they appear on a travel nurse's return.
Some of these flags are under your control. Others are generated by your agency. In both cases, understanding them helps you make smarter decisions about which agencies to work with, how to structure your contracts, and whether your current approach can survive scrutiny.
Red Flag 1: An Implausibly Low Taxable Hourly Rate
When a contract shows a taxable rate of $12–15/hour alongside large stipends in a market where RNs earn $35–40/hour, the IRS recognizes the structure immediately: the agency has artificially depressed the taxable wage and inflated the stipend to reduce both parties’ FICA obligations. This arrangement benefits the agency (lower employer FICA) and appears to benefit the nurse (more non-taxable income) — but it is a wage reclassification the IRS consistently challenges. Contracts with taxable rates substantially below local market wages for the specialty and shift are a direct audit trigger.
Red Flag 2: Stipends That Exceed the GSA Rate for the Assignment City
The IRS safe harbor for non-taxable per diem is the GSA-published rate for the assignment city. Any housing or meal stipend that exceeds that rate is taxable wages. If your agency pays a flat stipend that is identical across all markets — regardless of whether the city is Boise or Boston — and that amount exceeds the GSA rate for the lower-cost markets, the excess is being paid as wages without proper W2 reporting. The IRS flags this when the numbers don’t add up against known GSA rates.
Red Flag 3: No Documented Tax Home
Claiming non-taxable stipends without a qualifying tax home is the foundational error in travel nurse tax compliance. The IRS can request documentation of your home base expenses, your return trips, and your business activity near home as part of any examination. Nurses who claimed stipends as non-taxable but cannot produce a lease, mortgage statements, or other evidence of a maintained home base face full reclassification of those stipends as taxable income, plus interest and potential penalties going back as far as the statute of limitations allows.
Before your next assignment, use our Tax Home Quiz to verify your home base meets the IRS three-factor test and identify any gaps in your current setup.
Red Flag 4: Assignments Exceeding One Year at the Same Location
An assignment that extends to 12 months or more at the same facility or metropolitan area is no longer "temporary" under IRS guidelines. At that point, the assignment location becomes your new tax home and any stipends received there after the one-year mark are reclassified as taxable wages. Nurses who extend multiple times and cross the one-year threshold at the same location while continuing to receive non-taxable stipends are exposed to this reclassification. The IRS can identify this by comparing contract dates to W2 data from the same employer over multiple years.
Red Flag 5: No State Tax Filing in Assignment States
If you worked in California, New York, or Illinois and did not file a non-resident state return, those states’ tax authorities may flag the discrepancy — and state-level audits can trigger federal examination as well. States with robust enforcement programs actively match W2 data to their records. A W2 showing wages earned in a state with no corresponding state return filed is a straightforward match that can open an inquiry.
Red Flag 6: Working Exclusively Through One Agency for Years Without a Local Work History
A nurse who has worked exclusively through a single travel agency for three or four consecutive years, never returning to a home market, never working locally, and never filing in their supposed home state creates a profile that looks less like a traveling worker and more like a permanent employee with a mailing address. The IRS looks for genuine business connections to the home base. The absence of any local professional activity across multiple years weakens Factor 1 of the tax home test and raises questions about whether the claimed home base was ever real.
Red Flag 7: Using a Family Member's Address Without Paying Rent
Listing a parent’s or sibling’s home as your tax home residence without paying documented fair-market rent is one of the most common and most easily challenged positions in travel nurse taxation. The duplicate living expense requirement exists precisely because the IRS wants to see that you are genuinely incurring a cost at your home base — not just maintaining a convenient mailing address. Family-home tax homes that lack documented rent payments almost always fail Factor 2 under any serious examination.
Frequently Asked Questions
If my agency structured the contract incorrectly, am I liable?
Generally, yes. The nurse is ultimately responsible for the accuracy of their own tax return. If an agency pays you stipends that exceed the GSA rate and does not include the excess on your W2, you still technically owe tax on that excess — even though it does not appear on your W2. In practice, penalties may be shared or shifted to the agency in egregious cases, but the safer position is to understand your contract and flag anything that looks structurally aggressive.
What triggers an IRS audit of a travel nurse specifically?
Audits typically start with data mismatches: W2 income in one state with no return filed there, or income reported by a third party (like an agency) that does not appear on your return. They can also be triggered by information from an agency audit (the IRS audits the employer and then reviews workers), or by referrals from state tax authorities. Individual random selection is less common but does occur.
Can I fix a prior-year return if I realize my stipends should have been taxable?
Yes. You can file an amended return (Form 1040-X) for any year within the three-year statute of limitations. Voluntarily correcting a return before the IRS contacts you generally results in lower or no penalties compared to a correction made during an audit. If you realize your tax home did not qualify in a prior year, consult a CPA promptly — voluntary disclosure almost always produces a better outcome than waiting.
Disclaimer: This article describes common IRS audit risk factors for educational purposes only and is not tax or legal advice. Individual tax situations vary significantly. Consult a CPA or enrolled agent experienced in travel healthcare taxation for personalized guidance.