Calculator · Portland & California to Clark County, WA
Moving to Clark County: the tax math, run honestly
“No state income tax” is the headline. The real answer depends on where you’ll work, what you’ll sell, and what you’ll buy. This compares your taxes today — Portland-metro or California — against life in Clark County, line by line, and says so plainly when the savings are small.
Set where you’re coming from, how your household earns, and where the work will happen after the move. The comparison updates as you go: state income tax, the Portland-area local taxes, property tax, sales tax, and the five- and ten-year difference. Nothing here is gated, and nothing here is a pitch.
Your situation
Estimated annual difference
You'd keep about $4,362 more each year in Vancouver, WA.
Multnomah County total $19,636 vs. Vancouver, WA total $15,274 — at today's rates, on these inputs.
| Multnomah County | Vancouver, WA | Move saves | |
|---|---|---|---|
| State income taxOregon, as a resident vs. as a nonresident on Oregon-source wages | $13,756 | $4,964 | −$8,792 |
| Property tax0.98% of $600,000 vs. 0.97% of $650,000 | $5,880 | $6,305 | +$425 |
| Sales taxnone vs. 8.9% on $45,000 of spending | $0 | $4,005 | +$4,005 |
| Total | $19,636 | $15,274 | −$4,362 |
For a married couple with $185,000 of household income, Multnomah County takes $13,756 in state and local income tax; Vancouver, WA takes $4,964. With 40% of your work performed in Oregon, Oregon still taxes that share of your wages as a nonresident. Every office day you trade for a home day moves that line. Keep a day log; Oregon can ask for one.
Working against the move: property tax runs about $425 higher on the $650,000 target home, and sales tax adds about $4,005 on $45,000 of taxable spending. The income tax savings cover that on these inputs, but it's the part of the math most people skip.
Over ten years at today's rates that's $43,622, before any growth in income or home values — enough to matter in what you can afford across the river.
Not in these columns: Oregon’s Measure 50 cap, California’s Prop 13 basis, Washington use tax on Oregon purchases, vehicle registration, insurance. What the model can’t capture.
An estimate, not tax advice. Rates verified September 6, 2026 for tax year 2026; property tax uses county medians unless you enter your bill. Confirm anything you’d act on with a CPA who knows both states.
Where this model refuses to cheat
The commuter rule is modeled, not footnoted. Oregon taxes nonresidents on wages for work physically performed in Oregon. The slider splits your wages by days in each state and runs Oregon’s nonresident return the way the form does — deductions prorated by the Oregon percentage, then the rate chart on what’s left. A Vancouver address with a Portland desk keeps most of the Oregon bill.
The local taxes follow the workplace. Multnomah County’s Preschool for All and Metro’s Supportive Housing Services are owed by nonresidents on wages earned inside the county or district. Tell the model where the office is and it applies them — or doesn’t.
Washington’s side gets taxed too. Sales tax on what you actually spend, property tax on a home assessed near its price, and the capital gains excise once brokerage gains pass the annual deduction. A comparison that only zeroes out Oregon’s column isn’t a comparison; it’s a brochure.
Property tax admits what it doesn’t know. Oregon’s Measure 50 and California’s Prop 13 mean two neighbors in identical houses can pay very different bills. The default is the county median; the advanced fields take your actual bill, which is always the better number.
Deciding whether to buy at all once you land? Our rent vs. buy calculator runs both markets. Wondering what homes are actually selling for on this side of the river? The weekly market data covers every Clark County zip, and the practical guide to moving from Portland covers the commute and the neighborhoods. The long version of all of it — the bridge, the cities, the two transactions, the first ninety days — is the Clark County relocation guide.
What this calculator can’t capture
- Oregon’s Measure 50 cap. Oregon taxes an assessed value that grows at most 3% a year and stays with the property, so long-time owners pay far below the headline rate on what their home is worth. A Clark County purchase is taxed near market from day one. The county-median default understates this for long-held homes; enter your bill.
- California’s Prop 13 basis. The same story, more so: a home bought in 2005 may be paying a third of what a new buyer would. Selling it gives that basis up for good. The gain itself is federal business; Washington doesn’t tax real estate gains.
- Washington’s capital gains excise. 7% on long-term gains above $278,000 a year (2.9 points more above $1 million of taxable gain). Real estate, retirement accounts, and short-term gains are exempt. The model applies it to the gains you enter; it can’t know about a one-time liquidity event.
- Use tax on Oregon purchases. Driving to Portland to buy a laptop tax-free is a Washington use-tax liability, not a loophole. The model assumes your taxable spending is taxed at your Clark County rate.
- Vehicles and insurance. Washington charges sales tax on vehicle purchases and its registration fees differ from Oregon’s; home insurance tends to run higher in Washington, and auto rates differ by carrier and zip. None of that is in the columns.
- The move itself. Selling on one side and buying on the other has real transaction costs, and they land in year one. The ten-year figure is flat — today’s income, today’s rates, no raises, no appreciation, no legislation. Preschool for All’s rate is scheduled to rise in 2027; Supportive Housing Services sunsets after 2030 unless voters extend it.
Rates reflect tax year 2026 law as verified September 6, 2026, with the current-year Washington capital gains deduction pending publication. This is an estimate, not tax advice. Defaults are editable assumptions, and small changes move the answer, which is the point. Confirm anything you’d act on with a CPA who knows both states.
© 2026 The Tartan Team · Real Broker, LLC. This calculator and the model behind it are original work of The Tartan Team.
Portland and California to Clark County: common questions
Only on income from Oregon sources — and for most households that means wages for work physically performed in Oregon. If you live in Vancouver and drive to a Portland office five days a week, Oregon taxes those wages as a nonresident at the same rates a resident pays, up to 9.9%. If you work from home in Washington, or for a Washington employer, the same wages aren't Oregon-source and aren't taxed by Oregon. Hybrid schedules split the difference by days worked in each state, so keep a log; Oregon can ask for one. Pensions and IRA withdrawals can't be taxed by Oregon once you're a Washington resident, and investment income isn't Oregon-source either.
On taxes, it depends almost entirely on where you work. A household that moves its work to Washington along with its address typically keeps well over half of what it was paying Oregon. A household that keeps commuting to a Portland job keeps paying Oregon income tax on those wages and adds Washington's sales tax (8.7–9.0% in Clark County) and property tax on a home assessed near full market value — which can make the move a wash, or a small loss, on taxes alone. Home prices per square foot tend to be lower in Clark County, and there's no state income tax on retirement or investment income. The calculator above shows your version of the answer, and it will tell you when the number is modest.
No. Washington has no personal income tax, so pensions, 401(k) and IRA withdrawals, and annuity payments aren't taxed by the state. Oregon taxes all of them as ordinary income, at rates that reach 8.75% just above $22,800 of taxable income for a married couple. Federal law also bars Oregon from taxing a nonresident's retirement income, so an Oregon pension paid to a Vancouver resident isn't taxed by Oregon. Social Security isn't taxed by Oregon, California, or Washington, which is why it isn't an input above.
State income tax, mostly. California taxes wages, retirement withdrawals, and capital gains alike, at 9.3% by the mid-brackets and 13.3% above $1 million; Washington has none. What Californians tend to give back is property tax: Prop 13 keeps a long-held California home assessed near its original purchase price, while a Clark County home is assessed close to its current market value at roughly 0.9–1.0% of value. Sales tax in Clark County (8.7–9.0%) is comparable to Los Angeles and Santa Clara counties and a point or so above San Diego. Washington's 7% capital gains excise applies only to gains above $278,000 a year in taxable accounts, and real estate is exempt — so the gain on selling your California home isn't touched by Washington.
Only if your wages do. Both are local income taxes on Oregon taxable income above a threshold — Multnomah County's Preschool for All at 1.5% over $125,000 single / $200,000 joint (3% over $250,000 / $400,000), and Metro's Supportive Housing Services at 1% over $128,000 / $205,000 in 2026. A Washington resident who works physically inside Multnomah County or the Metro district still owes them on those wages; a remote worker or a Washington-based employee does not. Preschool for All's rates are scheduled to rise by 0.8 points in 2027, and Supportive Housing Services sunsets after 2030 unless voters extend it.
Often, for the same house, yes — and the reason is structural rather than the rates. Oregon's Measure 50 taxes a capped assessed value that stays with the property and typically sits well below market, so long-time owners pay a low effective rate on what the home is actually worth. Washington assesses at market value with a one-year lag, so a new Clark County purchase is taxed near its price at about 0.9–1.0% (Battle Ground runs lower, parts of Vancouver higher, driven mostly by school district). If you sell a Portland home you've owned a long time, expect the property tax line to go up even if your rate looks lower on paper. Our guide to Clark County property taxes walks through the rates city by city.
Landing somewhere specific? See what representation looks like in Vancouver, Camas, and Ridgefield, browse new construction communities, or read our city-by-city guide to Clark County property taxes.
Want the numbers run on your actual move?
The defaults are a starting point. On a free strategy call we’ll plug in where you’ll work, what you’re selling, and what you’re hoping to buy — and talk through what the model can’t know.