Rev. Proc. 84-35 Penalty Abatement for Small Partnerships

Revenue Procedure 84-35 penalty abatement for small partnerships is the IRS’s established route for wiping out the late-filing penalty on Form 1065 when a partnership has ten or fewer qualifying partners and each of them reported their share of partnership income on time. The penalty itself is steep: for returns due in 2026, it runs $255 per partner for each month the return is late, up to 12 months, so a two-partner firm that files three months late is already looking at $1,530.¹ The procedure doesn’t excuse the filing obligation. It gives qualifying partnerships a recognized reasonable-cause path to have the penalty removed after the fact.²

Section 6698 of the Internal Revenue Code, which imposes the penalty, includes one built-in escape: it doesn’t apply if the partnership shows reasonable cause.³ Rev. Proc. 84-35 is the IRS’s own definition of what counts as reasonable cause when the partnership is small enough. Meet every condition and the penalty goes away. Miss one and you’re back to arguing reasonable cause on general grounds, which is harder and less predictable.

The Five Conditions You Have to Meet

All five requirements have to be satisfied. Falling short on any single one disqualifies the partnership from this specific relief.

Ten or fewer partners for the entire tax year. A married couple filing jointly counts as one partner, not two.²
Every partner is a natural person (other than a non-resident alien) or the estate of a deceased person. A corporation, trust, or another partnership as a partner disqualifies the entity.⁴
Each partner’s share is identical for every partnership item — income, deductions, and credits alike. If the agreement gives one partner 60% of profits but only 40% of losses, the consistency test fails.²
The partnership is not subject to the centralized partnership audit regime that replaced the old TEFRA rules. The IRS confirmed in Program Manager Technical Advice 2020-01 that Rev. Proc. 84-35 survives that change and remains available. Under current internal guidance, IRS agents verify this themselves.
Every partner timely filed an individual return that included the correct share of all partnership items. This is the condition that does the most work.²

One more limit worth naming: the entity has to be a domestic partnership, organized in the United States. A foreign partnership with U.S. partners cannot use this procedure.

What “Timely and Fully Reported” Really Requires

The fifth condition sounds all-or-nothing, but Rev. Proc. 84-35 itself allows some room for judgment. The IRS looks at the facts and circumstances, weighing the nature and materiality of any reporting error. A clerical mistake that produces a trivial understatement of tax on one partner’s return generally won’t cost the partnership its eligibility. A material understatement will. The line isn’t a fixed dollar amount, but the practical rule is workable: small rounding or transposition errors are usually survivable, while a partner who omitted a $50,000 distributive share is not.

This is where most abatement requests live or die. If one partner filed late, or filed on time but left the partnership income off entirely, the whole partnership loses access to this relief. Confirm every partner’s filing status and reported amounts before submitting anything.

How to Ask for the Abatement

When the IRS assesses the penalty, it typically sends a CP162B notice. That notice identifies the penalty amount, the tax year, and the office handling the case, and it tells you where to send your response.²

Return the notice with a written statement, signed under penalty of perjury, explaining that the partnership qualifies for relief under Rev. Proc. 84-35. Walk through each of the five conditions: the partner count, the types of partners, the consistent allocation across all items, and the fact that every partner timely filed and reported their share. Include the partnership’s EIN, the tax year, and the names and taxpayer identification numbers of all partners so the IRS can cross-reference the individual returns.²

There’s no dedicated IRS form for the request. Mail the statement to the address on the CP162B notice. The signed-under-perjury requirement effectively rules out phone or oral requests. Certified mail with return receipt is worth the extra cost because it gives you proof of delivery if the penalty moves toward collections while your request is pending.

One detail people miss: you still have to file the late Form 1065. The procedure removes the penalty, not the filing obligation. If the return isn’t in yet, send it at the same time as the abatement request.

If the IRS Approves or Denies

An approval comes as a notice of adjustment showing the penalty reduced to zero. Any interest that accrued on the penalty is removed automatically when the penalty itself goes away, so you won’t owe interest on a penalty that no longer exists.⁵

A denial letter should say why. Common reasons include a partner who filed late, a partner type that doesn’t qualify (a trust holding a partnership interest, for example), or inconsistent allocations in the partnership agreement. You can pursue a formal appeal, and you can still look at other relief, including First-Time Abate.

First-Time Abate When 84-35 Isn’t Available

Partnerships that don’t fit the Rev. Proc. 84-35 criteria — say they have 12 partners, or one partner is an LLC treated as a partnership — may still qualify for First-Time Abate. The IRS confirms that FTA applies to the partnership failure-to-file penalty under IRC 6698(a)(1).⁶

FTA works on different terms. Rather than meeting small-partnership conditions, the entity needs a clean compliance history: all required returns filed for the prior three tax years, no penalties assessed during those three years (or any prior penalty removed for reasons other than FTA), and any current tax paid or under an installment arrangement.⁶

The tradeoff matters. Rev. Proc. 84-35 doesn’t care about penalty history, so a partnership that was penalized two years ago can still qualify if it meets the five conditions now. FTA doesn’t care about partner count or partner type, so a 50-partner LLC with a spotless three-year record can qualify. When a small partnership satisfies both, Rev. Proc. 84-35 is usually the better choice because it preserves FTA for a future year and a different penalty.

Mistakes That Kill the Request

The most frequent failure is a partner who filed their individual return late, or who filed on time but left out the partnership income. The IRS can verify this immediately, and there’s no way to argue past it. Confirm every partner’s filing before you submit.

Special allocations in the partnership agreement are the second common problem. Many small partnerships split profits and losses on different percentages, or allocate specific deductions to one partner. Any variation in allocation percentages across items disqualifies the entity, no matter how few partners there are.

Skipping the actual return is another trap. Some partnerships send the abatement letter but never file the delinquent Form 1065. The failure-to-file clock keeps running until the return goes in. File first or file simultaneously.

Finally, look carefully at partner types. A single-member LLC that’s disregarded for tax purposes doesn’t count as an entity partner; the individual owner behind it is the partner. A multi-member LLC treated as a partnership does disqualify the entity. Revocable trusts that become irrevocable at the grantor’s death can also fall out of the “estate of a deceased partner” category depending on timing.

1
Internal Revenue Service. Rev Proc 2024-40
2
Internal Revenue Service. Understanding Your CP162B Notice
3
Office of the Law Revision Counsel. 26 USC 6698 Failure to File Partnership Return
4
Center for Agricultural Law and Taxation. IRS Clarifies That Rev Proc 84-35 Still Applies to Small Partnerships
5
Internal Revenue Service. Penalty Relief
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Internal Revenue Service. Administrative Penalty Relief