Form 1065 for an LLC: The Partnership Return (2026)

Which LLCs Must File Form 1065?

A multi-member LLC with 2 or more owners files Form 1065 by default. A single-member LLC does not; it reports on Schedule C. The threshold is the owner count: 2 owners means 1 partnership return.

Source: IRS Form 1065 instructions and entity classification rules, verified August 2026.

The partnership default applies the moment an LLC has 2 owners, with no filing to opt in. An owner who wants a different result files Form 8832 for C corporation status or Form 2553 for S corporation status. The 4 routes are laid out on Form 8832 for an LLC and Form 2553 for an LLC.

The count of owners decides the return with no gray area: 1 owner files Schedule C, 2 or more owners file Form 1065. An LLC keeps partnership status until it files an election, so most multi-member LLCs never leave the 1065 track. A husband-and-wife LLC in a community-property state is the 1 exception the IRS allows to file as a disregarded entity. Every partner listed on the return needs the LLC's 9-digit EIN, and the partnership reuses that same number for Form 1120-S or Form 1120 if it later elects corporate status. Owners weighing the switch can compare the routes on the multi-member LLC EIN page before they file.

When Is Form 1065 Due?

Form 1065 is due March 15, the 15th day of the 3rd month after the tax year ends. Filing Form 7004 by March 15 grants a 6-month extension to September 15.

Source: IRS Form 1065 and Form 7004 instructions, verified August 2026.

The March 15 date is fixed as the 15th day of the 3rd month after the tax year closes. A calendar-year LLC ends its year on December 31, so its Form 1065 lands on March 15 of the next year. An LLC that misses the date without an extension starts the $220-per-partner penalty clock the same day. Filing Form 7004 on or before March 15 buys 6 more months and moves the deadline to September 15. The 7004 extends the return only; it does not push any owner's individual Form 1040, which is still due April 15.

The 6-month window covers the paperwork, not a tax bill, because the partnership owes $0 in income tax on its profit. An LLC that forms mid-year still files its first Form 1065 by the following March 15, covering the short first year. The EIN must already be in hand, since the return carries the 9-digit number at the top. Owners can review the full timeline on the Form 1065 for an LLC guide and see how the number works after approval on using your EIN.

What Is a Schedule K-1?

Schedule K-1 reports each owner's share of income, deductions, and credits. Form 1065 issues 1 K-1 per member, so a 3-member LLC produces 3, and each owner carries the numbers to Form 1040.

Source: IRS Schedule K-1 (Form 1065) instructions, verified August 2026.

The K-1 is how pass-through works in practice: the partnership reports $0 in tax, and each owner pays on their slice at individual rates. A 50-50 LLC gives each partner half; a 70-30 or 90-10 LLC follows those exact percentages. Owners then claim up to 20% of qualified business income under 26 U.S.C. section 199A. Owners who need the underlying EIN first can start on the LLC EIN application page.

Each Schedule K-1 lists 1 owner's share of ordinary income, rental income, interest, deductions, and credits, box by box. The percentages across the K-1s add to 100%, so a 2-member LLC split 50-50 gives each owner exactly half of every line. A 60-40 LLC sends 60% of the profit to 1 partner and 40% to the other, and the numbers follow the operating agreement. Form 1065 keeps 1 K-1 with the return and sends 1 copy to each owner by March 15. The owner then reports the K-1 total on Schedule E of Form 1040 and pays at individual rates. Because the partnership itself pays $0, the K-1 is the only place the profit is taxed. Owners deciding how the entity should be taxed can weigh the 4 routes on LLC tax classification.

Does Form 1065 Require an EIN?

Yes. A partnership return cannot be filed without a 9-digit EIN, which sits at the top of Form 1065. A multi-member LLC needs 1 EIN, obtained on Form SS-4 for a $0 IRS fee.

The EIN requirement comes from 26 U.S.C. section 6109, which makes the identification number mandatory on the return, while 26 U.S.C. section 6031 sets the partnership filing duty itself. The LLC applies once on Form SS-4, receives its CP-575 confirmation, and reuses the same 9-digit number on every Form 1065 it files. The step-by-step walkthrough lives on how to get an EIN for an LLC, and the price question is answered on LLC EIN cost.

The EIN is a 9-digit number in the format 12-3456789, and the IRS issues exactly 1 per LLC. A multi-member LLC applies once on Form SS-4, and the number never expires, never renews, and carries the partnership through every future Form 1065. The IRS charges $0 for the EIN itself, whether the LLC applies online, by fax, or by mail. einforllc.co prepares and files the SS-4 for $97 on the standard track or $127 for a 24-hour turnaround, then returns the CP-575 confirmation letter. The same number that anchors Form 1065 also opens the LLC's bank account and files any state return. An LLC that later elects S corporation status on Form 2553 keeps the identical EIN for its Form 1120-S. First-time owners can start with what an EIN is.

What Is the Penalty for Filing Form 1065 Late?

The late penalty is $220 per partner per month for 2025 and 2026, capped at 12 months. A 4-partner LLC that files 3 months late owes $220 times 4 times 3, which is $2,640.

Source: IRC section 6698, 2025-2026 penalty rate, verified August 2026.

The penalty stacks: 5 partners at $220 for the full 12-month cap reaches $13,200, even though the LLC owed $0 in income tax. Filing Form 7004 by March 15 buys the 6-month extension to September 15 and stops the clock. The EIN that anchors every one of those filings starts on new EIN for an LLC.

The penalty under 26 U.S.C. section 6698 runs $220 for each partner for each month or part of a month the return is late. The charge caps at 12 months, so a 5-partner LLC that ignores the return for a year owes 5 times 220 times 12, which is $13,200. A 2-partner LLC that files 1 month late owes $440, and a 3-partner LLC 2 months late owes $1,320. The IRS bills the penalty even though the partnership itself paid $0 in income tax, because the 1065 is an information return. First-time filers can request abatement under the IRS reasonable-cause rules, but the safe move is Form 7004 by March 15. That single form pushes the deadline to September 15 and stops the clock for all owners at once. The EIN every one of those returns depends on is covered on the Form 1065 for an LLC guide.

Form 1065 vs 1120-S vs Schedule C?

Form 1065 is the default multi-member return, Form 1120-S is for an S corporation LLC, and Schedule C is for a single-member LLC. All 3 require the same 9-digit EIN, except Schedule C on a sole owner's return.

Source: IRS Form 1065, Form 1120-S, and Schedule C instructions, verified August 2026.

The switch from 1 return to another follows the owner count and any election. A single-member LLC that adds a 2nd owner moves from Schedule C to Form 1065; an LLC that files Form 2553 moves to Form 1120-S. The single-owner starting point is covered on EIN for a single-member LLC.

The 3 returns differ on 1 axis: how many owners the LLC has and which election it filed. A 1-owner LLC files Schedule C with its owner's Form 1040 by April 15 and issues no K-1. A 2-owner LLC files Form 1065 by March 15 and issues 1 K-1 per owner. An LLC of any size that files Form 2553 files Form 1120-S instead, also by March 15, and pays its owners a reasonable salary. All 3 paths report profit the entity itself does not tax, so each owner pays at individual rates. An LLC that elects C corporation status on Form 8832 is the 1 exception, filing Form 1120 and paying a flat 21% entity tax. Nonprofit LLCs follow a separate track covered on the nonprofit EIN page.

This page states federal tax rules current as of August 2026. It is not legal or tax advice. Confirm your LLC's position with a licensed CPA or attorney before filing a return.