Total Schedule C deductions. Don't forget state and local business taxes actually PAID during the year — Oregon TriMet self-employment tax is deductible in the year you pay it, including catch-up payments for earlier years. Also: software, phone, internet, professional development, travel, equipment, professional fees, mileage.
Business taxes paid
Business taxes you actually paid this year, deducted like an expense: for example TriMet self-employment tax, including catch-up payments for earlier years. Enter the tax only; penalties and interest aren't deductible. This year's TriMet tax is paid with next year's return, so it belongs on next year's calculator.
Check this if your work is mainly advice: consulting, law, accounting, health, financial services, performing arts, athletics. Leave it off if you produce deliverables such as websites, design, writing or video. It only matters once taxable income before QBI passes the threshold ($201,775 single / $403,550 joint for 2026). Above it, an SSTB's QBI deduction phases out faster, falling twice as steeply. Either way, a sole proprietor's deduction is gone at the top of the band, because a business with no W-2 wages gets nothing above it.
Home Office (sq ft)
Portland Area Residency
Applies Metro SHS tax (1% of taxable income over $128k single / $205k joint for 2026) and Multnomah County Preschool for All tax (1.5% over $125k single / $200k joint, plus 1.5% more over $250k / $400k). Both are based on taxable income, so capital gains and investment income are included.
Local / TriMet tax rate (%)
Enter percentage (0.8237 for TriMet self-employment tax). Applies to Schedule SE earnings after the $400 exclusion, the same base as Form OR-TM. Metro SHS and Multnomah PFA are handled by the residency setting above.
Family & Dependents▼
Filing Status
Children (< 17)
Other Dependents
Deductions & Credits▼
Fed. Std. Deduction
State Std. Deduction
State & local taxes paid
Itemized deduction (SALT): state income tax, Metro SHS and Multnomah PFA actually PAID during the tax year, including estimates paid by Dec 31. Property tax goes in its own line below (e.g. tax reimbursed to the seller at closing). Leave "Calculate automatically" on to use this year's computed taxes. Capped at $40,400 for 2026 (less above $505,000 of AGI). Only helps if your itemized total beats the standard deduction. Federal only: Oregon doesn't let you deduct Oregon tax.
Automatically generated from this year's state income tax + Metro SHS + Multnomah PFA, assuming you pay them all by Dec 31. Property tax and prior-year taxes paid this year (below) are added on top.
Property tax paid
Prior-year taxes paid this year
State income tax, Metro SHS and Multnomah PFA you paid this year that belong to LAST year: the Q4 estimate paid in January and any balance due paid with last year's return in April. They are deductible in the year paid, so they are added on top of the automatic figure, just like property tax. Don't include last year's payments dated in the prior calendar year.
Mortgage Interest
Charitable Giving
Clean Vehicle Credit
Investment & Retirement▼
Long-Term Cap. Gains
Short-Term Cap. Gains
Qualified Dividends
Dividends that qualify for the lower long-term capital gains rates (0/15/20%). Most U.S. stock and fund dividends held long enough qualify.
Other Investment Inc.
Ordinary-rate investment income: interest (HYSA), non-qualified dividends, rental income, etc.
Solo 401(k) Employee
Elective deferral. 2026 limit is $24,500 before catch-up contributions, limited by earned income.
Solo 401(k) Employer
Employer profit-sharing side. Shares employer contribution room with SEP IRA in this calculator.
SEP IRA
Employer contribution only. SEP and Solo 401(k) employer contributions share the employer-side room here.
SEP IRA is locked while Solo 401(k) contributions are entered, so the planner does not mix employer-side retirement plans.
Traditional IRA
Max $7,500 for 2026 before catch-up. You can still contribute with a Solo 401(k) or SEP, but deductibility may phase out.
MAGI Add-backs
Health Insurance (ACA)▼
Annual Premium Cost
SLCSP Benchmark
Your Plan Premium
Subsidy to repay
Advance premium tax credit you received during the year but don't qualify for at your actual income. From 2026 there's no repayment cap, so it's added in full to your federal tax (Form 8962).
$0Net Pocket
Expenses
Federal
State
Pocket
Total liability
0% of gross revenue · 0% marginal
$0
Paid
$0
Left to pay
$0
Net in pocket
$0
Monthly take-home$0
Before retirement contributions$0
Compare another income
Where your revenue goes
Net Business Income$0explain
AGI$0explain
Taxable Income$0explain
Keep rate · next $10k0%explain
Federal▼
Self-Employment Tax$0
Social Security wage base
The 12.4% Social Security half of SE tax stops at the annual wage base. Above it, each additional dollar of business income owes only the 2.9% Medicare portion (plus the 0.9% surtax past the threshold) — so your marginal rate drops sharply at this point.
$0
Income Tax$0
NIIT (3.8%)$0
Addl. Medicare (0.9%)$0
incl. health subsidy repaid$0
incl. AMT (est.)
Rough Alternative Minimum Tax screen, already included in the Income Tax above. Simplified: adds back the standard deduction, applies the AMT exemption (with phase-out) and 26/28% rates. Not an exact AMT computation.
$0
Std. / Itemized Deduction
The larger of your federal standard deduction or your itemized total (mortgage interest + charitable contributions).
$0
QBI Deduction
Section 199A: 20% of qualified business income, reduced by the business-attributable above-the-line deductions (half of SE tax, self-employed health insurance, and retirement contributions). Above the threshold it phases out across a $75k band ($150k joint): linearly for most businesses, and faster for a specified service business (SSTB, set under Income & Business). Capital gains push you toward that band without themselves qualifying.
$0
QBI phase-out—
0% Bracket$0 to next
Oregon▼
Oregon Income Tax$0
Fed Tax Subtraction
Oregon allows subtracting federal tax liability up to ~$8,750 for 2026 (subject to income phase-outs).
$0
CA tax before credits$0
Exemption Credits
California uses small exemption credits after tax is calculated: personal credits plus dependent credits.
$0
Behavioral Health Services Tax$0
CA SDI on S-Corp W-2 wages$0
Metro SHS Tax (1%)
Metro Supportive Housing Services tax: 1% of taxable income above $128,000 single / $205,000 joint (2026 thresholds, now inflation-indexed). Includes capital gains. Filed with the Portland Revenue Division.
$0
Multnomah PFA Tax
Preschool for All tax: 1.5% of taxable income over $125,000 single / $200,000 joint, plus an additional 1.5% over $250,000 / $400,000. Includes capital gains. The rate increase scheduled for 2026 was delayed to 2027.
$0
Local / TriMet Tax$0
Retirement & Tax Insights
How much tax each additional pre-tax retirement dollar actually saves you — and where the high-value zones are.
Total tax vs. pre-tax retirement contribution
Total taxYou
$0 contributedmax
Income & Tax Curve
Your total tax and take-home as business income rises. Danger zones are flagged only when your income actually reaches them — the ACA 400% cliff, and (at higher incomes) the QBI phase-out band.
Total tax & take-home vs. business income
Total taxTake-homeYou
$0max
Roth vs. Traditional
For the same money today, which retirement bucket leaves you with more after tax — your current marginal rate now vs. your expected rate in retirement.
Quarterly Estimated Payments
Track what you've paid each quarter, see your under/overpayment, and plan to your safe-harbor target.
What you've paid
Due
Fed
State
Q1
Apr 15
Q2
Jun 15
Q3
Sep 15
Q4
Jan 15
Paid vs Liability
$0 of $0
$0 remaining
Plan & safe harbor
Pay this quarter to stay on track
$0
Fed $0 / State $0
$0$0
Spreads what's still owed over the remaining quarters so you finish the year fully paid.
Type
Fed
State
Annual Liability
$0
$0
— from your income
$0
$0
— from investments (gains, dividends, interest)
$0
$0
— of which filed annually, not quarterly
TriMet self-employment tax is filed annually on Form OR-TM with your Oregon return. Metro SHS and Multnomah PFA go to the Portland Revenue Division, and for 2026 quarterly payments are only required if you owe more than $5,000. None of these belong in your quarterly estimate to the Oregon DOR.
—
$0
Paid So Far
$0
$0
Under/Overpaid
$0
$0
Even installment (¼ of year)
$0
$0
Combined Remaining
$0
From Q1 Fed + State payments
Current estimated quarterly payment$0
Catch-up amountNo catch-up needed
Add catch-up amount to this quarter's payment
Current quarter estimate$0
Prior quarter catch-up$0
Total suggested payment$0
AllocationFedStateTotal
Current quarter estimate$0$0$0
Prior quarter catch-up$0$0$0
Total suggested payment$0$0$0
If your income increased this quarter, you may want to add the difference from last quarter to reduce possible underpayment exposure. This does not guarantee penalty avoidance, but it can help you stay ahead.
Safe Harbor Planner
90% of current year--
Prior-year safe harbor--
Your target (the lower one)--
Suggested per quarter--
ACA Subsidy & Cliff
Your estimated marketplace premium tax credit, and how close you are to the 400% federal poverty level cutoff.
2026 subsidy cliff
For 2026, this calculator treats 400% of FPL as a hard cutoff for premium tax credits.
0%of FPL
0%400% FPL cliff
Status--
400% FPL limit$0
Distance from cliff$0 below
MAGI for ACA$0
SLCSP Benchmark$0
Est. Monthly Subsidy$0
Your Monthly Premium$0
Net Monthly Premium$0
Retirement Contribution Strategy
Plan what to fund now versus what to leave flexible until year-end. Solo 401(k) employee deferrals can be planned separately from employer-side contributions; Traditional IRA deductibility depends on final MAGI.
Fund now: Solo 401(k) employee
Entered$0
Estimated max$0
Remaining room$0
Employee deferral is usually the cleanest current-year lever because it does not consume employer-side SEP/Solo room.
Save for later: employer side
Solo employer entered$0
Estimated employer room$0
Room left$0
Employer-side funding is usually easier to finalize later when annual net earnings are clearer.
SEP IRA vs Solo 401(k)
SEP input statusAvailable
SEP-only max deduction$0
Solo max deduction$0
This planner favors Solo 401(k) once any Solo contribution is entered, because employee deferral plus employer room usually gives more flexibility than SEP alone.
Wait/check later: Traditional IRA
Entered$0
Deductible now$0
Non-deductible now$0
Traditional IRA deductibility may change with final MAGI, so waiting can prevent an accidental non-deductible contribution.
If you've already earned income as a sole prop/LLC this year, this rough model can show whether S-Corp treatment for the remaining revenue may be worth discussing with a tax professional.
Already earned (non S-Corp)
$0$500K
Assumptions & Sources
What this model includes, the data it relies on, and where the numbers come from.
This calculator is for planning only. It is not official tax advice, does not file anything, and does not guarantee penalty avoidance.
Source / Status
Federal tax dataOfficial
Oregon tax dataMaintained
Tax year2026
Last reviewedMay 2026
Federal sourcesIRS, SSA
State sourcesOregon DOR
Official means the value was checked against published federal guidance. Maintained means the app stores the current Oregon values directly and they should be rechecked when Oregon publishes new annual guidance.
Tax Year
Uses 2026 federal brackets, standard deductions, Social Security wage base, retirement limits, and ACA applicable percentages.
Uses state-specific brackets, standard deduction, and credits for the state selected in the header (Oregon: federal tax subtraction + exemption credit; California: exemption credits, SDI, and the 1% Behavioral Health Services Tax above $1M).
Assumes the user is a resident of the selected state unless they manually adjust local tax assumptions.
Income
Gross revenue and business expenses are treated as full-year self-employment amounts.
Home office uses the simplified $5 per square foot method, capped at 300 square feet.
Long-term capital gains receive preferential federal rates; short-term gains are included in ordinary income.
Deductions
Federal deduction uses the larger of itemized entries shown here or the standard deduction input.
QBI (Section 199A) is 20% of qualified business income — net profit less the deductible half of SE tax, self-employed health insurance, and self-employed retirement contributions — capped at 20% of taxable income before QBI (excluding long-term gains). Above the threshold it phases out across the band: a specified service business (SSTB) scales both QBI and W-2 wages down, so it shrinks faster; other businesses are limited to 50% of W-2 wages, which is zero for a sole proprietor, so the deduction also reaches zero at the top of the band.
Solo 401(k) employee deferrals are modeled separately from employer profit-sharing contributions.
SEP and Solo 401(k) employer-side contributions share the employer contribution room in this calculator to avoid double counting.
Traditional IRA contributions may still be allowed with SEP or Solo 401(k), but deductibility phases out when covered by a retirement plan.
Payments
Quarterly estimates divide current annual liability evenly across four quarters.
Prior quarter catch-up compares the current combined quarterly estimate to the amount paid in the immediately previous quarter.
Safe harbor messaging only checks the 90% current-year target shown here; it does not model prior-year safe harbor or annualized income installment methods.
ACA
ACA subsidy estimates use MAGI from this calculator plus any MAGI add-backs entered by the user.
The subsidy estimate depends on user-entered SLCSP benchmark and plan premium values.
Marketplace eligibility, household details, Medicaid rules, and reconciliation edge cases are simplified.
S-Corp
S-Corp output is a rough comparison model, not a recommendation to elect S-Corp status.
Reasonable compensation is estimated mechanically and should be reviewed with a professional.
Admin costs are modeled as a fixed annual amount and may not match the user's actual payroll, bookkeeping, or filing costs.