Washington's new jock tax gets attention because the numbers are dramatic and the athletes are famous, but the underlying mechanism has nothing to do with sports. Section 315 prorates the $1 million standard deduction for any nonresident based on the ratio of Washington-source income to federal adjusted gross income. Section 404's duty-day formula is just the version written for professional athletes and team personnel. Executives, consultants, and remote employees who occasionally work from Washington face the identical math under the general nonresident sourcing rules in §§401–405 — they just don't have a league schedule to define the denominator.
How the general version works
For a nonresident worker, Washington-source compensation is generally the share of total pay attributable to days worked in Washington. Once that figure is set, §315 applies the same formula the jock tax article walks through for athletes: the available deduction is $1 million multiplied by the ratio of Washington-source income to total federal AGI, capped at the full $1 million.
A consulting executive, worked example
A Texas-based executive earns $3 million in total annual compensation and spends about 20 days working from a Washington office out of roughly 250 working days in the year. Washington-source compensation: $3M × (20/250) = $240,000. Prorated standard deduction: $1M × ($240,000 / $3,000,000) = $80,000. Washington taxable income: $160,000. Tax at 9.9%: roughly $15,800 — for less than a month of Washington work.
A larger contract, more Washington days
Same structure, but $10 million in total compensation and 30 days worked in Washington out of 250. Washington-source income: $1.2 million. Prorated deduction: $120,000. Taxable income: $1.08 million. Tax at 9.9%: roughly $107,000.
The pattern to watch
The deduction shrinks in lockstep with the ratio of Washington income to total income — not with days present, and not as a flat allowance. As that ratio climbs, the deduction stops providing meaningful shelter and the effective rate on the Washington slice approaches the full 9.9%. Unlike the athlete rules, there's no statutory duty-day count anchoring the denominator for ordinary nonresident workers; expect what counts as a "total working day" to be one of the first things DOR regulations need to clarify under §§401–405.
This post is part of our Complete Guide to Washington's New Income Tax. For how the same mechanism plays out for professional athletes, see Washington's Jock Tax Under ESSB 6346.
Disclaimer: This article is for general informational purposes only and does not constitute legal or tax advice. The rules discussed here are based on ESSB 6346 as enacted; DOR regulations are still pending. Consult a qualified attorney or tax advisor before making planning decisions.
