Whether you need to file a federal tax return for an LLC with no activity comes down to how the IRS classifies the LLC. A single-member LLC with zero income and zero expenses generally owes no federal filing. A multi-member LLC treated as a partnership can skip Form 1065 only if it had no income and no expenses at all. An LLC that elected to be taxed as a C corporation or S corporation must file every year, activity or not. State obligations are separate and almost always apply.
Single-Member LLCs
By default, the IRS treats a single-member LLC as a “disregarded entity,” meaning it does not exist separately from its owner for federal tax purposes.1Internal Revenue Service. LLC Filing as a Corporation or Partnership Business income and expenses normally flow onto Schedule C of the owner’s Form 1040. If the LLC had no profit and no loss for the entire year, the IRS says you don’t need to file a Schedule C at all.2Internal Revenue Service. Schedule C and Schedule SE Nothing extra is required for the LLC itself.
There is one significant exception. If a foreign person wholly owns the single-member LLC, the IRS requires a pro forma Form 1120 with Form 5472 attached, even with no income. The LLC must report any “reportable transactions” with its foreign owner, and the IRS treats formation-related transactions such as capital contributions as reportable.3Internal Revenue Service. Instructions for Form 5472 These filings cannot be submitted electronically and must go to a dedicated IRS mailing address or fax number.
Multi-Member LLCs Taxed as Partnerships
An LLC with two or more members defaults to partnership status.1Internal Revenue Service. LLC Filing as a Corporation or Partnership The rule is narrower than most owners assume: a domestic partnership does not need to file Form 1065 only if it neither received income nor incurred any expenditures treated as deductions or credits.4Internal Revenue Service. 2025 Instructions for Form 1065
That “no expenditures” piece is where owners get caught. If the LLC paid a state filing fee, a registered agent service, or a monthly bank account fee, it incurred an expenditure. At that point Form 1065 is required, along with a Schedule K-1 for each member.1Internal Revenue Service. LLC Filing as a Corporation or Partnership Very few LLCs get through a full year with literally zero costs, so most multi-member LLCs should plan to file.
LLCs Taxed as a C Corporation or S Corporation
An LLC can elect to be taxed as a C corporation using Form 8832 or as an S corporation using Form 2553.5Internal Revenue Service. Entities 3 Once either election is in place, the LLC must file a corporate return every year, even when revenue is zero and nothing happened. The IRS states that all domestic corporations must file an income tax return whether or not they have taxable income.6Internal Revenue Service. Instructions for Form 1120 (2025)
C corporation LLCs file Form 1120. S corporation LLCs file Form 1120-S and issue a Schedule K-1 to each member. Skipping these returns because the LLC was inactive is one of the most expensive mistakes an LLC owner can make.
What Happens If You Skip a Required Return
The IRS does not care that the LLC made no money. If a return was required and you didn’t file it, penalties accumulate automatically.
For partnerships (Form 1065) and S corporations (Form 1120-S), the penalty for returns due after December 31, 2025 is $255 per partner or shareholder for each month or partial month the return is late, up to 12 months.7Internal Revenue Service. Failure to File Penalty A two-member LLC taxed as a partnership accrues $510 a month, reaching $6,120 after a full year. A five-shareholder S corporation LLC hits a maximum of $15,300. These amounts apply even though the LLC owed zero in actual tax.
C corporations that fail to file Form 1120 face a separate penalty based on the tax owed, which may be zero for an inactive LLC. The IRS can still assess a minimum penalty for returns filed more than 60 days late.
Automatic Relief for Small Partnerships
If your multi-member LLC was late filing Form 1065 and you get a penalty notice, you may qualify for automatic relief under Revenue Procedure 84-35. The IRS will presume reasonable cause and remove the penalty if all of the following are true:8Internal Revenue Service. Understanding Your CP162A Notice
- The partnership has ten or fewer partners, with a married couple filing jointly counted as one.
- All partners are natural persons or estates of natural persons, not corporations or other entities.
- Each partner’s share of every partnership item is the same.
- Every partner reported their distributive share on a timely filed personal return.
Many inactive two-person LLCs meet these criteria. If you receive a CP162A notice, you can respond with a signed statement under penalty of perjury claiming relief under Rev. Proc. 84-35. Most people who qualify don’t know this path exists.
State Filings Apply Even With No Activity
Federal filing is only half of it. Nearly every state has its own requirements, and they apply whether or not the LLC did any business.
Most states require an annual or biennial report that updates the registered agent, principal address, and member or manager information, usually with a filing fee. Fees range from nothing in a few states to several hundred dollars in others. Some states also charge a franchise or privilege tax just for keeping the LLC on the books; a handful of these run as high as $800 a year for a completely inactive LLC.
Missing these obligations does more than pile on late fees. A state can strip the LLC of its good standing, and continued noncompliance can lead to administrative dissolution. Once dissolved, the LLC legally ceases to exist and the liability protection you formed it for goes with it.
Should You File Anyway?
Even when no federal return is technically required, there are reasons an inactive LLC might want to file or take action.
An LLC that was formed but never began operating may still have deductible start-up and organizational costs, including filing fees, legal expenses for the operating agreement, and accounting fees. A business can deduct up to $5,000 in start-up expenditures in the year it begins operations, with the remainder spread over 180 months; the $5,000 allowance phases out once total start-up costs exceed $50,000.9Office of the Law Revision Counsel. 26 U.S. Code 195 – Start-up Expenditures Organizational costs follow the same pattern for partnerships.10eCFR. 26 CFR 1.709-1 – Treatment of Organization and Syndication Costs These costs are not deductible until the business actually begins. If you abandon the business without ever starting, they can be written off as a loss.
If you do not plan to use the LLC, dissolving it is usually better than letting it sit and accrue state fees year after year. That means filing articles of dissolution (sometimes called a certificate of cancellation) with the state office where you formed the LLC, and filing a final federal return marked as such. For an S corporation, check the “Final return” box on Form 1120-S and mark each Schedule K-1 as final.11Internal Revenue Service. Instructions for Form 1120-S Partnerships use the equivalent box on Form 1065. You can also send the IRS a letter asking that the EIN account be deactivated; the IRS cannot cancel an EIN once assigned, but it can close the account so no future filing obligations are generated.12Internal Revenue Service. If You No Longer Need Your EIN Make sure any outstanding returns are filed and any taxes owed are paid first.