How to File Taxes for an LLC With Two Members

A two-member LLC files its federal taxes based on how the IRS classifies it. By default, that’s a partnership: the LLC files Form 1065, issues each member a Schedule K-1, and each member reports their share of the income on their personal Form 1040. The LLC can also elect to be taxed as an S-Corporation, which keeps the pass-through treatment but changes how members are paid and how much self-employment tax they owe. Everything below walks through how to file taxes for an LLC with two members under each of those paths, plus the deadlines, deductions, and payments members handle on their own returns.

The Default: Filing as a Partnership

The IRS automatically treats a domestic LLC with two or more members as a partnership for federal tax purposes.¹ You don’t file anything to accept the default. Most two-member LLCs stick with it because it’s simple and avoids the payroll requirements a corporate election brings.

An LLC taxed as a partnership files Form 1065, U.S. Return of Partnership Income, each year.² Form 1065 is informational. The partnership itself pays no federal income tax; it calculates total income, deductions, and credits, then passes everything through to the members.

Each member receives a Schedule K-1 (Form 1065) showing their share of income, losses, deductions, and credits.² Shares follow the LLC’s operating agreement. A 60/40 split in the agreement produces K-1s with a 60/40 split. When the agreement is silent, most states default to equal shares.

Each member then reports the K-1 figures on Schedule E (Form 1040), Supplemental Income and Loss, as part of their personal return.³ The income is taxed once at the member’s individual rate.

Married Couples in Community Property States

If the LLC’s two members are spouses in a community property state, they have another option. Under IRS Revenue Procedure 2002-69, a husband and wife who wholly own an LLC as community property can elect to treat it as a disregarded entity instead of a partnership.⁴ Each spouse then reports their share of income directly on Schedule C with no Form 1065 and no K-1s. Both spouses pay self-employment tax on their respective shares. Community property states include Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin.

Electing S-Corporation Status

If partnership treatment doesn’t suit the business, the members can file Form 2553, Election by a Small Business Corporation, to be taxed as an S-Corp.⁵ Income still passes through to the members’ personal returns and no entity-level tax applies, but active members split their pay between W-2 wages and distributions, which can reduce self-employment tax.

Timing matters. Form 2553 must be filed no later than two months and 15 days after the start of the tax year the election is to take effect, which is March 15 for a calendar-year LLC.⁶ You can also file it anytime during the prior tax year. Miss the window and partnership treatment applies for the current year unless you qualify for late-election relief.

Eligibility rules also apply. The LLC can have no more than 100 shareholders, all shareholders must be U.S. citizens or residents (no partnerships or corporations as owners), and the entity can have only one class of stock.⁷ These limits rarely trouble a two-person LLC, but they’re worth checking before you file.

An LLC that has elected S-Corp status files Form 1120-S, U.S. Income Tax Return for an S Corporation, in place of Form 1065.⁸ After paying reasonable W-2 salaries, the S-Corp allocates any remaining net income to the members on Schedule K-1 (Form 1120-S). Each member reports the K-1 income on Schedule E, just like in the partnership model.³ The K-1 income is not subject to self-employment tax, which is the whole appeal of the election.

Reasonable Compensation

Any member who works for the S-Corp must receive a salary paid as W-2 wages before any remaining profits are distributed.⁹ That salary must be reasonable compensation, meaning what a comparable business would pay someone with similar training, duties, and experience for the same work.

The IRS looks at where the company’s revenue actually comes from. If most gross receipts come from a shareholder’s personal services, most of the income should be classified as wages. Other factors include time devoted to the business, what non-shareholder employees earn, and pay for similar roles at comparable businesses.⁹ Setting an artificially low salary to dodge employment taxes is the single fastest way to draw an audit. The IRS has authority to reclassify distributions as wages and assess back taxes plus penalties.

How Self-Employment Tax Changes Between the Two

This is where the choice hits members’ wallets hardest. The self-employment tax rate is 15.3%, covering 12.4% for Social Security and 2.9% for Medicare.¹⁰ The Social Security portion applies to net earnings up to $184,500 in 2026; the Medicare portion has no cap.¹¹

Under partnership treatment, each member’s entire share of ordinary business income is generally subject to that 15.3% tax.¹² Members calculate it on Schedule SE (Form 1040) using net earnings from their K-1.

Under S-Corp treatment, only the W-2 wages carry FICA taxes (the employer and employee each pay 7.65%, totaling the same 15.3%). The remaining K-1 distributions escape self-employment tax.³ For an LLC earning $300,000 where two members each take $60,000 in salary and $90,000 in distributions, the S-Corp election saves roughly $13,770 per member in self-employment tax versus partnership treatment, before accounting for the extra payroll and preparation costs an S-Corp creates.

The math gets less attractive as the business earns less. When total LLC income is under roughly $80,000 to $100,000, payroll administration, extra tax preparation fees, and the reasonable-compensation constraint often eat into the savings enough that partnership taxation is the simpler and better option.

The Qualified Business Income Deduction

Members of a two-member LLC may qualify for a deduction worth up to 23% of their qualified business income (QBI) under Section 199A, as extended and expanded by the One Big Beautiful Bill Act for tax years beginning in 2026. The deduction is claimed on the member’s personal return, not on the LLC’s return, and it applies whether the LLC is taxed as a partnership or an S-Corp.¹³

The full deduction is available to single filers with taxable income below $200,000 and married-filing-jointly filers below $400,000. Above those thresholds, the deduction phases out, particularly for service-based businesses such as law firms, medical practices, and consulting companies. The phase-out range runs to $275,000 for single filers and $550,000 for joint filers; beyond that, service businesses lose the deduction entirely.

On $150,000 of qualified business income, a 23% deduction removes $34,500 from the member’s taxable income. Eligibility is worth checking each year, since the thresholds are adjusted for inflation.

Quarterly Estimated Tax Payments

Because LLC income passes through and no employer withholds tax from distributions or K-1 income, each member makes quarterly estimated tax payments covering both income tax and self-employment tax. Skipping or underpaying triggers an underpayment penalty.

Estimated payments are due four times a year:¹⁴

April 15, for income from January through March
June 15, for income from April through May
September 15, for income from June through August
January 15 of the following year, for income from September through December

You avoid the underpayment penalty by paying at least 90% of the current year’s total tax or 100% of the prior year’s tax, whichever is less. If your adjusted gross income exceeded $150,000 in the prior year ($75,000 if married filing separately), the prior-year threshold rises to 110%.¹⁵ Members who also hold a W-2 job elsewhere can sometimes cover the shortfall by increasing withholding at that job instead of making quarterly payments.

Filing Deadlines, Extensions, and Late Penalties

Both Form 1065 and Form 1120-S are due March 15 for calendar-year LLCs.¹⁶ The LLC must also furnish each member’s Schedule K-1 by the same date, since members need those figures to file their own returns by April 15.

Filing Form 7004 grants an automatic six-month extension, moving the deadline to September 15.¹⁷ It extends the filing deadline only, not the time to pay. Any taxes members owe based on LLC income are still due by their individual filing deadlines, and interest accrues on unpaid amounts.

Missing the deadline without an extension gets expensive fast. For partnership returns due after December 31, 2025, the IRS charges $255 per partner for each month or partial month the return is late, up to 12 months.¹⁸ For a two-member LLC, that’s $510 a month even if the LLC owes no tax. One day late counts as a full month.

Late S-Corp returns work the same way: $255 per shareholder per month, up to 12 months.¹⁹ A two-member LLC taxed as an S-Corp that files six months late without an extension faces $3,060 in penalties before any interest or tax-due penalties.

Other Filing Requirements

Employer Identification Number

A two-member LLC needs its own EIN from the IRS regardless of how it’s taxed. You can apply for free on the IRS website and receive the number immediately. The EIN goes on every return the LLC files and is required before opening a business bank account or hiring employees.

Electronic Filing

Partnerships that file 10 or more total returns in a tax year, counting income, employment, excise, and information returns combined, must file Form 1065 and related schedules electronically.² A two-member LLC with employees can hit that threshold quickly once W-2s, 1099s, and quarterly payroll filings are counted. Most tax software and preparers file electronically by default even below the threshold.

State Obligations

Federal filing is only half the picture. Most states require LLCs to file an annual or biennial report and pay a fee, and many impose their own income or franchise taxes on the entity or its members. State costs and deadlines vary widely and are separate from the federal return. Check with your state’s secretary of state and department of revenue early in the year.

1
Internal Revenue Service. LLC Filing as a Corporation or Partnership
2
Internal Revenue Service. 2025 Instructions for Form 1065 – U.S. Return of Partnership Income
3
Internal Revenue Service. 2025 Instructions for Schedule E (Form 1040) – Introductory Material
4
Internal Revenue Service. Revenue Procedure 2002-69 – Classification of Certain Business Entities
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Internal Revenue Service. About Form 2553, Election by a Small Business Corporation
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Internal Revenue Service. Instructions for Form 2553
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Internal Revenue Service. S Corporations
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Internal Revenue Service. About Form 1120-S, U.S. Income Tax Return for an S Corporation
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Internal Revenue Service. S Corporation Compensation and Medical Insurance Issues
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Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
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Social Security Administration. Contribution and Benefit Base
12
Internal Revenue Service. Entities 1
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Internal Revenue Service. Qualified Business Income Deduction
14
Internal Revenue Service. Estimated Tax
15
Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
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Internal Revenue Service. Starting or Ending a Business 3
17
Internal Revenue Service. Instructions for Form 7004
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Internal Revenue Service. Failure to File Penalty
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Internal Revenue Service. Instructions for Form 1120-S (2025)