Oregon State Income Tax for LLCs — Rates, Filing & Strategies

Oregon's personal income tax is the primary state tax obligation for LLC members. Since most Oregon LLCs are pass-through entities, the LLC itself doesn't pay income tax — instead, profits flow through to members' personal Oregon tax returns (Form OR-40) where they're taxed at rates from 4.75% to 9.9%. For the complete tax picture, see our full tax guide. For LLC formation, see our formation guide.

Oregon Income Tax Rates (2025 Tax Year)

Single filers / Married filing separately:

Married filing jointly / Head of household:

Key context: Oregon's top rate of 9.9% is the 5th highest state income tax rate in the country. However, Oregon has NO sales tax, which partially offsets this for consumer-facing businesses and their customers.

How LLC Income Is Taxed in Oregon

Single-member LLC:

• LLC income reported on your federal Schedule C (or Schedule E for rental income)
• Total carries to your Oregon Form OR-40
• Oregon starts with federal taxable income and makes state-specific adjustments
• You're taxed on ALL LLC income at your marginal Oregon rate

Multi-member LLC:

• LLC files federal Form 1065 (informational partnership return)
• Each member receives a K-1 showing their distributive share of income, deductions, and credits
• Each member reports their K-1 amounts on their individual Oregon Form OR-40
• Oregon filing required even if member lives out of state (for Oregon-sourced income)

S-corp elected LLC:

• LLC files Form 1120-S (informational S-corp return)
• Members receive K-1s showing salary and distribution amounts
• Salary is subject to employment taxes; distributions are not
• All income still flows to members' Oregon personal returns
• Potential savings on self-employment tax (but no Oregon income tax savings — rate is the same)

C-corp elected LLC:

• LLC pays Oregon corporate excise tax at entity level: 6.6% on first $1 million, 7.6% above $1 million
• Minimum excise tax of $150 regardless of income
• Distributions to members taxed AGAIN on personal returns (double taxation)
• Rarely advantageous for small LLCs unless retaining significant earnings in the entity

Oregon vs. Federal — Key Differences

Oregon largely conforms to federal taxable income calculations but has notable differences:

The federal tax deduction on Oregon returns is unique — Oregon is one of only a handful of states that allows you to deduct a portion of your federal income tax paid. For LLC members with significant income, this partial deduction provides meaningful savings.

Non-Resident Members

If your Oregon LLC has members who live in other states:

• Non-resident members owe Oregon income tax on income sourced from Oregon business activities
• File Oregon Form OR-40-N (Non-Resident return)
• The LLC may be required to withhold Oregon tax on behalf of non-resident members
• Non-resident members get a credit on their home state return for Oregon tax paid (avoiding double taxation)
• The LLC should file Oregon Form OC (Oregon Composite Return) or make pass-through entity tax payments if applicable

Oregon Pass-Through Entity Tax (PTE-E)

Since 2022, Oregon offers an optional pass-through entity elective tax (PTE-E) as a workaround for the federal $10,000 SALT deduction cap:

• The LLC elects to pay Oregon income tax at the entity level (9% rate)
• Members receive a corresponding credit on their Oregon personal returns
• The entity-level payment is fully deductible on the federal return (bypasses SALT cap)
• Members with income over $200K+ typically benefit from this election
• Election must be made by the original due date of the LLC's return

This is valuable for multi-member LLCs whose members have income over $200K, as it effectively makes Oregon income tax fully deductible against federal taxable income.

Tax Planning Strategies for Oregon LLC Members

1. Retirement contributions — SEP-IRA (up to 25% of net self-employment income) or Solo 401(k) reduce both federal AND Oregon taxable income
2. S-corp election — Does not reduce Oregon income tax rate, but saves 15.3% self-employment tax on distributions. Consider when LLC income exceeds $50,000-$75,000.
3. PTE-E election — For multi-member LLCs with higher-income members, bypasses the federal SALT cap and effectively makes Oregon tax fully deductible federally
4. Federal tax deduction — Maximize the Oregon subtraction for federal tax paid (unique Oregon benefit)
5. Timing of income/expenses — If income will push you from the 8.75% bracket into the 9.9% bracket, consider deferring income or accelerating deductions near year-end
6. Business expense optimization — All legitimate business expenses reduce Oregon taxable income (home office, vehicle, equipment, etc.)

Filing Deadlines and Extensions

FAQ

Does my Oregon LLC file a separate state tax return?

Single-member LLCs: No separate Oregon return for the LLC — income goes on your personal OR-40. Multi-member LLCs: No separate Oregon entity return (unless PTE-E elected), but the federal Form 1065/K-1s flow to each member's Oregon OR-40 or OR-40-N.

I live in Washington (no income tax) but my LLC is in Oregon. Do I owe Oregon tax?

Yes. Oregon taxes income from Oregon business activities regardless of where the member lives. If your LLC operates in Oregon, that income is Oregon-sourced and taxable in Oregon. Washington does not impose income tax, so there's no credit issue — you simply owe Oregon tax on Oregon-sourced income.

Is Oregon's 9.9% rate applied to all LLC income?

No — it's graduated. Only income over $125,000 (single) / $250,000 (joint) hits the 9.9% rate. The first $125K is taxed at lower rates (4.75%-8.75%). Your effective rate on, say, $80,000 of LLC income would be approximately 8.1%.

Can estimated tax payments be made online?

Yes. Use Oregon Revenue Online at revenueonline.dor.oregon.gov to make estimated payments, check balances, and manage your account electronically.