Form 1065 Late Filing Penalty Abatement: Small Partnerships

What is the Form 1065 late filing penalty per partner, and when does it stop growing?

The IRS charges a late or incomplete Form 1065 by the partner and by the month. For each month or part of a month the return is missing or incomplete, the penalty is a set dollar amount multiplied by the number of people who were partners at any time that year, for up to 12 months. It is assessed against the partnership (26 U.S.C. 6698; Form 1065 instructions). Notice CP162C is the IRS letter that charges this penalty for a late or incomplete partnership or S corporation return (IRS: CP162C notice).

The amount depends on the year the return was due. The highest published rate is $260 per partner per month, for returns due in 2027; earlier due years carry lower rates. For a calendar-year LLC the return was due March 15. The charge stops growing when a complete return is filed or the cap is reached, and every unfiled year is its own charge. Rates by due year, how months are counted and the notice table are in Late business return penalties.

Three routes can remove the charge:

Relief is requested after the missing returns are filed, not instead of filing them.

A case is not simple when several years are unfiled, a partner's own return was late, a partner is a company or a foreign person, the LLC has closed, or the books are gone. Before replying to the IRS, gather:

• the member list for each year, with join and leave dates and each member's share
• each partner's filed returns or IRS transcripts, and extension confirmations
• every IRS notice, with its tax year and penalty description
• bank and card statements for each year the LLC operated
• the LLC's formation and closing dates

Is a two-member LLC a partnership for tax?

A domestic LLC with two or more members that has not filed Form 8832 or an S corporation election on Form 2553 is a partnership for federal tax and files Form 1065 (Form 1065 instructions). The penalty applies only to a partnership that was required to file, so check this first.

If the spouses are the only owners, own the LLC as community property, and it is not taxed as a corporation, the IRS accepts either disregarded or partnership treatment, as the couple reported it and filed returns to match; a later change in position is treated as a conversion (Revenue Procedure 2002-69). A couple that treated such an LLC as disregarded, or never reported either way, may have a classification question before a relief question.

If the members meant corporate or S treatment all along and never filed the election, late-election relief generally must be requested within 3 years and 75 days of the intended effective date; a late Form 2553 is signed by an authorized officer and every shareholder for the period (Revenue Procedure 2013-30). A new election takes effect no more than 75 days before it is filed, so it does not undo earlier partnership years (26 CFR 301.7701-3). See late LLC tax election relief and late S corporation election relief.

What is the small-partnership relief under Revenue Procedure 84-35?

Revenue Procedure 84-35 lets the IRS presume reasonable cause for a late or incomplete Form 1065 when a small domestic partnership meets every condition below. It removes the penalty; it does not remove the duty to file (IRS: CP162C notice; IRM 20.1.2).

Each condition is measured for the partnership's tax year, so each unfiled year stands on its own facts (26 CFR 301.6231(a)(1)-1). Partner reporting must be full. The revenue procedure weighs the nature and size of any error: a trivial understatement of tax does not defeat it, but a material one generally means the partner did not fully report (IRM 20.1.2).

The revenue procedure dates from 1984, and its audit-rule condition and partner count rest on the old consolidated audit rules, which the current audit regime replaced for partnership years beginning after 2017 (Form 1065 instructions). A 2019 IRS Chief Counsel memo advised that it is not obsolete and still applies, with the old small-partnership definition as its reference; the memo may not be used or cited as precedent (PMTA 2020-01). The IRS still prints the conditions on its notice and in its manual (IRM 20.1.2), but these sources do not say how it applies the audit-rule condition and partner count to recent years. If the IRS declines the statement, reasonable cause remains available.

It covers the late or incomplete return penalty only. A late or incomplete Schedule K-1 (the form that tells each partner their share) carries its own per-schedule penalty (Form 1065 instructions).

How do we prove every partner reported on a timely filed return?

Keep one proof file per partner for each tax year. The IRS asks for a statement signed under penalty of perjury first, and the revenue procedure has the partnership or any partner establish the partners' reporting if the IRS requests it (IRS: CP162C notice; IRM 20.1.2).

A transcript is not a photocopy; for a copy of a return, the IRS points to Form 4506 (IRS: tax records and transcripts). The revenue procedure does not define "timely", so keep the extension record whenever a partner relied on one. The LLC's own business transcript shows whether its late return has been processed (IRS: business transcripts).

What if one partner filed late, never filed, or is a company or nonresident alien?

One failing partner defeats the 84-35 route for that year. It does not by itself defeat First Time Abate or the automatic exemption, which test the partnership's own filing history, so check them next, then reasonable cause. The IRS will reassess a removed penalty if it later finds any partner was not qualifying, filed late, or did not report their share (IRM 20.1.2).

Does First Time Abate (first-time abatement) or the automatic exemption help if earlier years were never filed?

Usually not for any year after the first one the LLC skipped, because both reliefs look back over the prior 3 years for the same return type and need no penalty assessed in those years, unless it was removed for reasonable cause or IRS error (IRS: administrative relief; IRS procedural update).

Which of the two applies depends on the tax year. The automatic exemption covers original returns for tax year 2025 and later; the IRS applies it when the return is processed and you do not ask. First Time Abate covers the earlier years, plus any return from the exemption's first year that it did not reach; you must ask for it, and it is not available for returns due on or after January 1, 2027. For older unfiled years, First Time Abate is the only one of the two that applies (IRS procedural update; IRS: administrative relief).

Other limits:

• The automatic exemption applies only to an original return filed within 3 years of its original due date (IRS procedural update).
• First Time Abate applies to one tax period at a time (IRM 20.1.1).
• The IRS relief page asks for timely filing in the prior years; the manual says filed. If a prior year was filed late, ask the IRS how it will count it.
• A first-year partnership has no earlier filings to check, and the procedural update counts a year with no filing requirement as meeting the look-back. Whether the IRS applies it to your first year is the IRS's decision.

For the same two reliefs on other business returns, see Late business return penalties.

If we do not qualify, what counts as reasonable cause?

Reasonable cause means the partnership used ordinary care and prudence and was still unable to file on time, judged on all the facts (IRS: reasonable cause).

Both columns come from the IRS's reasonable-cause page, which adds that for a business the reasons apply to the person with authority to submit the return. Not knowing the rule can count alongside other facts. The manual weighs the owner's education, experience with the tax, earlier penalties, how complex the rule is and whether there was a good-faith effort to comply, and it says reasonable cause should never be presumed, even when ignorance of the law is claimed (IRM 20.1.1).

For lost records, the manual asks why the records were needed and unavailable, what steps were taken to get them, why the information was not estimated, and whether the partnership complied promptly once it had them. Reasonable cause cannot be shown while the failure continues, and ordinary care includes continuing to try to comply even though late, so file first (IRM 20.1.2; IRM 20.1.1).

How do we ask: reply to the notice with a statement, write or call?

Find the date on the notice first. If you agree with the penalty, the IRS asks for payment by that date to avoid more interest (IRS: CP162C notice). If the returns cannot be ready by then, see My business got an IRS notice before the date passes.

Generally file the missing returns first, then ask in the form the route requires.

1. File each missing return, complete, with a Schedule K-1 for every partner. The Form 1065 instructions say not to attach an explanation to the return; the IRS considers one after a penalty notice (Form 1065 instructions). Send a past-due return to the address on the notice, or where an on-time return would go (IRS: past due returns).
2. Check the notice against your records: tax year, penalty description, number of partners and months.
3. Choose the request from the table below.
4. Keep proof of delivery and a copy of everything sent.
5. If the IRS denies a written request, you generally have 30 days from the denial letter's date to request an appeal; the letter controls (IRS: penalty appeal).

A false statement can bring the penalty back, and the IRS notice also names a separate penalty for false statements under section 7206 (IRS: CP162C notice). The statement is signed under penalty of perjury, so the proof file comes first.

The LLC is closed: do we still file the missing returns?

Generally yes, for each year the LLC received income or had expenditures treated as deductions or credits. An LLC classified as a partnership has the same filing duty as any domestic partnership. Its tax year ends when it terminates: when it winds up its affairs (Form 1065 instructions), or when one member buys the other's entire interest (IRS Publication 3402). That final return is due the 15th day of the 3rd month after the month the partnership ends. A year with no income and no such expenditures generally has no Form 1065 duty.

The penalty is assessed against the partnership, but for enforced collection the IRS manual holds the partners individually liable for it to the extent of their liability for the partnership's debts (IRM 20.1.2). The IRS generally has ten years after assessment to collect an assessed penalty, as it does for tax (26 U.S.C. 6502; 26 U.S.C. 6665). Whether a member of a closed LLC is liable for the LLC's debts is not covered here.

A relief request needs the return on file first, and a closed LLC with no books has two jobs: rebuild each year from bank and card statements, and collect each partner's identification number for the K-1 (Form 1065 instructions). The IRS tells every taxpayer to file all past-due returns whether or not they can pay in full (IRS: past due returns). Building capital accounts without books is covered in Rebuilding partnership capital accounts.

What do we file first, and what happens to the K-1s and the partners' own returns?

The earliest missing year is the usual starting point, because each year's opening balances generally come from the year before (Form 1065 instructions). Which years to file and how many are in Catching up on unfiled business returns; opening balances and capital accounts are in Rebuilding partnership capital accounts.

Each return carries a Schedule K-1 for every partner, and the partnership furnishes each partner a copy (Form 1065 instructions). Each partner then compares the K-1 with what they reported for that year. A partner whose return is inconsistent with the partnership's, or who files before the partnership has filed, may need Form 8082 with that return, and failing to file it can bring an accuracy-related penalty (Partner's instructions). The revenue procedure does not say whether an amended return filed after the due date counts as a timely filed return that fully reported the share, so do not assume it does.

Example

These examples are illustrative, in US dollars. They assume a round US$250 per partner per month; the real rate depends on the year the return was due.

Two partners, one year, both reported on time

Two partners own a design LLC 50/50. It never filed Form 1065 for one year and files 14 months after the due date, so the 12-month cap applies: 2 partners × 12 months × US$250 = US$6,000. Both partners filed their own returns on time and each reported half the LLC's US$60,000 profit. The LLC has two individual partners, neither a nonresident alien, equal shares of every item and no audit election, so the small-partnership statement may fit. They file the Form 1065 and K-1s, return the notice with the signed statement, and keep both partners' filed returns and transcripts ready.

Three owners including a corporation, two years unfiled

An LLC has two individual owners and one C corporation, with the same three partners in both years, and two years are unfiled. Both returns are filed more than 12 months after their due dates. Each year's charge is 3 partners × 12 months × US$250 = US$9,000, or US$18,000 before relief. The corporate partner rules out the 84-35 route for both years. Year 1 may qualify for First Time Abate or the automatic exemption, whichever fits its tax year, only if the three years before it were filed with no penalties, or no filing was required. Year 2 generally cannot qualify while Year 1 is unfiled or its penalty stands, because the look-back finds no clean Year 1 filing. Where filing-history relief fails, what remains is reasonable cause, and both returns should be filed now.

A closed LLC, lost books, one late partner

Two partners closed their LLC with two years unfiled and no books. One partner filed their own Year 1 return six months after its due date, with no extension; the other filed everything on time. Both LLC returns are filed more than 12 months after their due dates, so the charge is 2 partners × 12 months × US$250 = US$6,000 per year, US$12,000 before relief. For Year 1, the late return defeats the statement, so Year 1 turns on filing-history relief or reasonable cause. For Year 2, the statement may fit if both returns were on time and fully reported each share, but no one can tell until both years are rebuilt from bank statements and compared with what each partner reported. A professional should read these facts before anything is sent to the IRS.

Different for you?

• The notices cover more than one year, or you cannot show every partner's timely return: each year needs its own route, an unfiled year changes the look-back for the next, and the 84-35 statement is signed under penalty of perjury. Pull transcripts first. A late or missing partner return rules out the 84-35 route for that year, but filing-history relief and reasonable cause can remain. Have the notices and partner returns read.
• The LLC closed with years unfiled and no books: rebuild the years from bank records and work out each partner's K-1 with Rebuilding partnership capital accounts and bookkeeping help.
• You do not know which years to file first, or how many: see Catching up on unfiled business returns.
• A partner or the LLC is foreign, or a partner is a nonresident alien: see closed foreign-owned LLCs that never filed.
• The letter may not be a Form 1065 penalty: see My business got an IRS notice.
• A bookkeeper or accountant caused the miss: see Bookkeeper mistakes and who pays the penalties.
• A state also charged a penalty: state penalties are separate from the federal one; see Late business return penalties, which covers California.
• A balance remains after relief: see IRS payment plans for business tax debt.
• You are not sure the LLC is a partnership: see How partnerships are taxed and How LLCs are taxed.