Quarterly Estimated Tax Calculator — Oregon (2026)
If you earn income in Oregon without withholding — freelancing, contracting, rentals, dividends — the IRS expects payment four times a year, not once. This calculator turns your expected 2026 net profit into a per-quarter number covering self-employment tax, federal income tax and Oregon state tax. Oregon uses a progressive income tax with 4 brackets running from 4.75% up to 9.90%, applied after a state standard deduction of $2,745.
Oregon Quarterly Tax Calculator
Gross 1099 income minus business expenses.
2026 due dates and safe harbor
Federal estimated payments are due April 15, June 15, September 15 of 2026 and January 15 of 2027. You avoid penalties by paying either 90% of the current year's liability or 100% of last year's (110% if prior-year AGI exceeded $150,000) — the safe-harbor rule.
Oregon runs its own estimated-payment schedule that usually mirrors the federal dates. On $90,000 of net profit the Oregon portion alone is about $1,694 per quarter.
Underpayment penalties
The IRS charges interest-style penalties per quarter you fall short, currently around 7–8% annualized. Paying late in the year does not fix an early-quarter shortfall unless you use the annualized income method on Form 2210.
Irregular income is common in tech work around Portland: if Q1 is slow and Q4 is huge, the annualized method usually beats four equal payments.
Paying as a Oregon taxpayer
Pay federally through IRS Direct Pay or EFTPS, and Oregon through the state revenue department's online portal — keep confirmation numbers for both.
Oregon has no state sales tax. Portland-area residents pay additional local taxes including Multnomah County 1.5%/3% and Metro 1% (above thresholds).
Local and payroll taxes Oregon adds on top
Paid Leave Oregon takes 0.6% of wages, plus a 0.1% statewide transit tax and local transit taxes around Portland. That deduction sits outside the federal and state income tax lines, so build it into your own budget on top of the numbers above.
Oregon has no state sales tax. Portland-area residents pay additional local taxes including Multnomah County 1.5%/3% and Metro 1% (above thresholds).
Nobody withholds these for you when you are self-employed in Oregon. Local wage taxes, city business licences and gross-receipts style levies are yours to register for and remit alongside your quarterly federal and state estimates.
Working across a state line from Oregon
Oregon holds income-tax reciprocity agreements with Arizona. If you commute between them, your wages are taxed only by your state of residence — file the exemption certificate with your employer so the wrong state is not withheld from every paycheck.
Remote and hybrid work complicates this further: most states tax income where the work is physically performed, so a Portland resident spending part of the year at a client site in Washington may owe a nonresident return there. Keep a day-count log if you split time between states.
The rest of your Oregon tax bill
Oregon charges no general sales tax, homeowners pay an average effective property tax of 0.93% of market value, and the minimum wage in force during 2026 is $15.05 an hour.
No sales tax, which offsets some of the higher income tax burden.
Income tax is only one part of a state's take. Oregon recovers revenue through sales and property tax as well, which is why headline income tax rates alone are a poor guide to how far a salary really goes. Oregon exempts Social Security but fully taxes pensions and IRA withdrawals, with a small retirement income credit.
Oregon vs Washington on the same salary
On a $90,000 salary, a single filer keeps about $64,811 a year in Oregon against roughly $72,145 in Washington — a difference of $7,334, or $611 a month.
Effective combined rates are 28.0% in Oregon and 19.8% in Washington. Set that gap against living costs: index 115 here versus 116 there, with property tax at 0.93% and 0.94% respectively.
Oregon income tax brackets 2026 (single filer)
| Taxable income | Rate |
|---|---|
| $0 – $4,300 | 4.75% |
| $4,300 – $10,750 | 6.75% |
| $10,750 – $125,000 | 8.75% |
| $125,000 and up | 9.90% |