States Just Caught Up With Your 2021 Remote Hires

A founder I work with runs a 47-person fintech at $13M ARR. She hired her first remote engineer in May 2021. By the end of 2022 she had eight remote hires across six states. Her payroll vendor handled withholding on each one. Nobody registered the company for state income tax, franchise tax, or sales tax in any of those states. Her accountant said to wait until it mattered.

Last week she got a letter from California's Franchise Tax Board. Back income tax, minimum franchise tax for each of the last four years, penalty, interest. The total comes to $186K before the lawyers get involved. New York, Massachusetts, and Illinois are queued behind it.

What changed

States built remote-work enforcement programs in 2023 and 2024. By 2026 the data infrastructure is mature. The audit trigger isn't a tip. It's a match between W-2 filings, unemployment insurance records, and corporate registration data, run as a batch process.

California's FTB ran a specific enforcement sweep through Q4 2025 and Q1 2026 targeting companies that filed W-2s for California residents but had no corporate filing in the state. New York's Department of Taxation and Finance ran a parallel program. Those letters started arriving in February.

What growing companies missed is that having a single employee in a state typically triggers three different nexus regimes at the same time. Payroll withholding nexus the day the employee starts. Corporate income or franchise tax nexus, usually retroactive to the same date. Sales tax nexus if the employee touches anything that looks like a sale, including a customer success call.

Most payroll vendors register you for the first one. They don't register you for the other two.

Where the math hurts

Three pieces compound.

Franchise tax minimums first. California's $800 minimum applies the moment an employee lives there. Four years times $800 is $3,200 per employee on the floor before anyone calculates actual income apportionment. Texas, Tennessee, and a few others have their own minimums. Across six states for one employee, the minimums alone can run $15-20K of back tax before the audit begins.

Corporate income apportionment is the second piece. Most states use single-sales-factor apportionment or a three-factor formula that includes payroll. A remote engineer in California earning $200K can pull a meaningful slice of your federal taxable income into California apportionment. For a $13M revenue company at 8% margins, that's $25-40K of state income tax per year per state, before penalty and interest.

Sales tax exposure is the third. Post-Wayfair, economic nexus thresholds apply even without an employee. With an employee, physical nexus triggers immediately. For a SaaS business selling into states where software is taxable, the back sales tax on uncollected invoices is a real liability that doesn't get waived by saying you didn't know.

The 2021 remote hire was a payroll decision. The 2026 tax letter is treating it as five years of unregistered corporate operations.

Voluntary disclosure before the letter arrives

If you have remote employees in states where you aren't registered, you have a short window. Voluntary disclosure agreements cap lookback at three or four years depending on the state. Penalty waivers are standard. Most states require you to come forward before they identify you, which is the moment the letter goes out.

Pull your payroll register. List every state with W-2s for the last five years. Check each one against your corporate registrations and your state tax filings. The gaps are your exposure.

If the gap is real, the VDA process takes about ninety days and costs less than half of what an audit settlement costs. Multistate firms run this as a service line because the math is consistent enough to model in a one-page memo.

Companies that wait for the letter pay the full lookback, the maximum penalty, and the legal fees to settle. Companies that come forward pay back tax and interest, with penalties waived and lookback capped at three years.

You hired in 2021. The state caught up in 2026. The bill is for everything in between.