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Two questions, and the license only answers one
A move from Portland to Vancouver, or from anywhere in Oregon to Washington, is often treated as a single event: new address, new Washington driver’s license, no more Oregon income tax. The first two parts are usually true. The third depends on where you keep working.
Oregon asks two separate questions. The first is whether you are still an Oregon resident, which turns on domicile and, for people who keep an Oregon home, a day count. The second is whether any of your income comes from Oregon sources. A nonresident answers no to the first question and can still owe Oregon tax on the second. A Washington license is evidence on the first question. It has no bearing on the second, because Oregon’s source rules look at where the work was done, not at the card in your wallet.
The corridor overview, with both states’ rules side by side, is on the moving from Oregon to Washington page.
Question one: when you stop being an Oregon resident
Under ORS 316.027, an Oregon resident is an individual domiciled in Oregon, or an individual who is not domiciled in Oregon but maintains a permanent place of abode in the state and spends more than 200 days of the year there, unless the presence was only for a temporary or transitory purpose. Oregon’s administrative rule, OAR 150-316-0025, describes domicile as the place a person considers their true, fixed, permanent home, and says an old domicile continues until the person shows an intent to abandon it, an intent to acquire a new one, and actually lives in the new one.
The Department of Revenue’s 2025 instructions for Forms OR-40-N and OR-40-P put it in plain terms: you are a nonresident if your permanent home and the center of your financial, social and family life are outside Oregon, and, if you keep a permanent home in Oregon, you did not spend more than 200 days in the state. The year of the move itself is a part-year year, filed on Form OR-40-P, with Oregon taxing everything while you were a resident and only Oregon-source income afterward.
Oregon’s own cases show what the Department looks at when the move is disputed. Our Oregon guide summarizes Thompson v. Dept. of Revenue (TC-MD 991027, 2000), in which the Magistrate Division found a couple had not abandoned their Oregon domicile despite claiming to have moved before selling an Oregon business, based on their continued Oregon telephone, cable, insurance, garbage and electric service at the home. In White v. Dept. of Revenue (TC 4085, 1998), the Tax Court held a taxpayer stayed Oregon-domiciled because he took no concrete steps such as a new driver’s license, new voter registration or moving his possessions.
Read together, those cases make the Washington license necessary but not sufficient. It is one of the concrete steps. The rest is the home you sleep in, the accounts that follow you, and the household that moves with you.
Question two: what Oregon still taxes after you leave
ORS 316.127 defines the income of a nonresident that is derived from Oregon sources. It includes items attributable to a business, trade, profession or occupation carried on in Oregon, and to the ownership or disposition of real or tangible property in the state. Wages for work performed in Oregon fall squarely inside that definition. The Department’s instructions say it directly: Oregon income includes income shown on your federal return "for services performed in Oregon."
The same instructions list other items that stay Oregon-source for a nonresident: severance pay received because of an Oregon job, sick pay and vacation pay earned from an Oregon job, unemployment benefits received because of an Oregon job, rents from Oregon property, the sale of Oregon property, and income from businesses located or doing business in Oregon. A move to Washington does not convert any of these into Washington income.
There is no relief from the Washington side. Oregon has no reciprocity agreement with Washington, and because Washington has no general income tax on wages, there is no Washington tax for Oregon to credit. A Vancouver resident who commutes to a Portland office every working day owes Oregon tax on essentially all of that salary, exactly as if the move had not changed anything about the paycheck.
The day formula that decides your Oregon wages
For people who split their working time, Oregon allocates wages by the days actually worked in the state. OAR 150-316-0165 sets the ratio: the total number of actual working days employed within Oregon over the total number of actual working days employed both within and outside the state. The Department’s instructions repeat it as a formula on line 7S of the return: days actually worked in Oregon, divided by days actually worked everywhere, times total wages.
Two details in that formula catch people. First, holidays, vacation days and sick days are not working days anywhere, so they come out of the denominator, but the pay for those days stays in total wages. Second, the rule also allows an hours-based ratio for work split within a single day, with examples using Oregon hours over total hours. The instructions’ own example is a nonresident with $50,000 in wages and 260 paid days who removes 14 vacation, 8 sick and 8 holiday days, leaving 230 days worked, 138 of them in Oregon. Her Oregon wages are 138 over 230 of $50,000, or $30,000.
For a hybrid worker who moved to Washington, the arithmetic is the same. Three office days a week in Portland and two at home in Vancouver works out to roughly 60 percent of wages sourced to Oregon. Our Oregon guide notes that Oregon has no convenience-of-employer rule, so days actually worked from a Washington home office are not Oregon days even when the employer is in Portland. That is the structural reason so many Portland-area workers live across the Columbia River, and it is also why the calendar matters more than the address.
If your Form W-2 shows Oregon wages that do not match your own day count, the instructions say to request a signed statement from your employer verifying the days worked in Oregon and the total days worked everywhere, and to keep it with a statement explaining your calculation. Our day count checker is a convenient way to turn a calendar into the two numbers the formula needs.
How the nonresident return computes the tax
A full-year nonresident files Form OR-40-N. The instructions set the filing threshold by Oregon gross income: for 2025, more than $2,835 for a single filer and more than $5,670 for a joint filer. Anyone with Oregon tax withheld who wants it back must file regardless.
The return starts with two columns, federal and Oregon. The Oregon percentage is the Oregon-column income divided by the federal-column income, capped at 100 percent, and the standard or itemized deductions and certain modifications are prorated by that percentage. The tax is then figured on the resulting Oregon taxable income using the same rate charts residents use. For 2025, Chart S for single filers runs from 4.75 percent to a top rate of 9.9 percent on taxable income over $125,000, and Chart J for joint filers reaches 9.9 percent over $250,000.
Local taxes can follow the paycheck too. When Multnomah County and Metro launched the Preschool for All and Supportive Housing Services taxes in 2022, the county described both as applying to residents and to nonresidents with income earned within the jurisdiction, above income thresholds that at launch were $125,000 for individuals and $200,000 for joint filers. Oregon’s statewide transit tax, according to EY’s summary of the 2017 law, applies to residents wherever they work and to nonresidents for services performed in Oregon. A Washington resident earning a high salary from Portland office days should expect these lines as well.
What a Washington license does change
The license is not useless for Oregon purposes. It is one of the concrete steps the White court found missing, and our Washington guide notes that the Department of Licensing expects a new resident to get a Washington license and register vehicles within 30 days. Together with Washington vehicle registration, voter registration, a Washington home, and the closing of Oregon household accounts, it supports the date your Oregon residency ended. That date controls the most valuable part of the move: income that is not tied to Oregon.
After the move, interest and dividends from personal investments are not Oregon-source under the Department’s instructions, income from intangible property counts only to the extent it comes from property employed in a business carried on in Oregon under ORS 316.127(3), and wages for work you actually perform outside Oregon fall outside the day formula. Retirement income is also protected: ORS 316.127(9) provides that retirement income received by a nonresident is not Oregon-source income unless the individual is domiciled in Oregon. For a retiree or an investor, a well-documented move to Washington can remove most or all of the Oregon tax. For a commuter, it removes only the part of the paycheck earned outside Oregon.
Washington has its own tax on large stock sales, and the date your domicile changes decides which state can reach a gain. That timing question, and the reverse move, are covered on the moving from Washington to Oregon page.
The same rule applies to other Oregon-adjacent moves
The pattern is not unique to Portland and Vancouver. Washington’s lack of a wage tax draws movers from every high-tax neighbor, and each departure state has its own rules for income it can still source to itself after you leave. Anyone who keeps a client, an office or a property in the state they left should read that state’s rules before assuming the move ended the tax. The moving from California to Washington page walks through the largest of those corridors.
What carries over is the habit. In any move to a state without an income tax, the departure state stops taxing your worldwide income only when your residency ends, and it never stops taxing income it can source to itself.
What to keep, starting now
For the residency question, keep a dated record of the move: the Oregon sale or lease-end documents, the Washington lease or deed, moving invoices, the date you began sleeping in Washington, and the issue dates of your Washington license, vehicle registration and voter registration. Keep the closing confirmations for Oregon utilities, insurance and household services, since those are the accounts that decided Thompson.
For the wage question, keep a working-day calendar that marks each day as an Oregon day, a Washington day, or a nonworking day, with badge records, parking receipts, or calendar entries that back up the Oregon days. Keep the employer’s day-count statement if your W-2 does not match. Keep pay stubs that show Oregon withholding, and the Form OR-40-N you filed with its day calculation.
For Oregon-source items beyond wages, keep severance agreements, records of Oregon property and its sale, and any business or rental records tied to Oregon.
The full rules for both states are in our Oregon residency intelligence guide and our Washington residency intelligence guide.
ResidencyIQ organizes records and highlights potential exposure factors. It does not provide legal or tax advice, and anyone with significant Oregon-source wages, severance or equity compensation after a move should have the allocation reviewed by a tax professional who handles both states.
Sources and further reading
The definition of an Oregon resident and the 200-day rule are from ORS 316.027: https://oregon.public.law/statutes/ors_316.027. The definition of domicile and the requirements for changing it are from Or. Admin. Code 150-316-0025: https://www.law.cornell.edu/regulations/oregon/Or-Admin-Code-SS-150-316-0025.
The definition of Oregon-source income for nonresidents, the intangible income rule in subsection (3), and the retirement income exclusion in subsection (9) are from ORS 316.127: https://oregon.public.law/statutes/ors_316.127.
The working-days ratio, the hours-based ratio, and the exclusion of sick leave, holidays and vacation days from working days are from OAR 150-316-0165, Gross Income of Nonresidents; Personal Services: https://oregon.public.law/rules/oar_150-316-0165.
The residency definitions, filing thresholds, Oregon-source and non-Oregon-source income lists, line 7S day formula and example, employer statement guidance, Oregon percentage, deduction proration, and 2025 rate charts are from the Oregon Department of Revenue, 2025 Form OR-40-N and Form OR-40-P Instructions: https://www.oregon.gov/dor/forms/FormsPubs/form-or-40-n_or-40-p-inst_101-048-1_2025.pdf.
The Thompson and White cases, the absence of a convenience-of-employer rule, and the absence of a reciprocity agreement are from our Oregon residency guide, which cites the underlying sources including https://law.justia.com/cases/oregon/tax-court-magistrate-division/2000/tcmd991027.html and https://law.justia.com/cases/oregon/tax-court-regular-division/1998/tc4085.html.
The Preschool for All and Supportive Housing Services tax rates, launch thresholds, and application to nonresidents are from Multnomah County, Multnomah County and Metro Launch Supportive Housing and Preschool For All Tax Programs (February 14, 2022): https://www.multco.us/multnomah-county/news/multnomah-county-and-metro-launch-supportive-housing-and-preschool-all-tax.
The application of the statewide transit tax to nonresidents for services performed in Oregon is from EY Tax News, Oregon law requires new withholding tax for funding of transportation costs starting July 1, 2018: https://taxnews.ey.com/news/2017-1358-oregon-law-requires-new-withholding-tax-for-funding-of-transportation-costs-starting-july-1-2018.
The Washington license and vehicle registration deadlines are from our Washington residency guide, which cites the Washington Department of Licensing at https://dol.wa.gov/moving-washington.
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About the author
Joseph Morin
Founder & CEO, ResidencyIQ · Principal, Equitymind Ventures
Pioneer SEO practitioner and a cofounder of the SEO industry. 25+ years in growth marketing, SEO, and digital strategy. International speaker, seven-time founder, three exits. Active advisor and operator across AI, consumer software, eSIM technology, ecommerce, entertainment, tax technology, rail, and cybersecurity. Business Mentor at Chapman University and Plug and Play Tech Center. Venture Growth Lead at Expert Dojo VC. Building and deploying AI agent infrastructure covering SEO, GEO, social, and outreach across the Equitymind portfolio.
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