June 8, 2026 · 15 min read

IRS Form 8810 Explained: The Corporate Tax Form That Shows Where Passive Losses Get Stuck

Learn who must file IRS Form 8810 and how to complete it correctly. BrieflyGo's complete guide to corporate passive activity loss limitations and smarter tax reporting.

#irs form 8810#passive loss#corporate tax#tax credits#passive activity

Quick facts

1

Corporations such as personal service and closely held entities that have passive activity losses or credits.

2

Form 8810 calculates the portion of passive losses and credits allowed this year versus carried forward.

3

It is required each tax year when the corporation reports passive activity amounts on its return.

4

The form is attached to the corporate tax return filed with the IRS for the applicable filing year.

5

Because passive losses and credits cannot automatically offset other income, the IRS limits their current‑year use.

6

Gather all passive activity data, separate active from passive, apply Form 8810 calculations, then report allowed amounts.

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IRS Form 8810 is the critical gatekeeper for corporations that need to determine whether passive activity losses and credits can be utilized in the current tax year. Unlike standard tax forms that simply report income or expenses, this form acts as a filter, separating what is immediately deductible from what must be suspended and carried forward to future periods.

IRS Form 8810: The Corporate Passive Activity Gatekeeper

Form 8810, Corporate Passive Activity Loss and Credit Limitations, is essential for specific corporate entities to navigate the complex IRS rules regarding passive activities. When a corporation engages in activities where it does not materially participate, the IRS imposes strict limitations on how those losses or credits can offset other income.

You can access the official IRS Form 8810 and its instructions directly from the IRS website to ensure you are using the most current version for the 2024 tax filing season.

Who Must File IRS Form 8810 This Year?

Not every corporation is subject to these rules. The requirement to file Form 8810 typically applies to two specific types of corporations:

Personal Service Corporations (PSCs): Corporations where the principal activity is the performance of personal services by employee-owners.
Closely Held Corporations: Corporations where more than 50% of the value of the outstanding stock is owned by five or fewer individuals at any time during the last half of the tax year.

If your corporation falls into these categories and holds passive investments—such as rental real estate or limited partnership interests—you must evaluate whether Form 8810 is required to report your passive activity loss limitations.

Step-by-Step Instructions for Completing Form 8810

Filling out Form 8810 requires a systematic approach to ensure that passive and active items are correctly segregated. Follow these general steps:

Categorize Activities: Clearly distinguish between active business operations and passive activities.
Calculate Current-Year Totals: Determine the net income or loss for each passive activity.
Account for Prior-Year Suspended Losses: Carry forward any disallowed losses from the previous tax year’s Form 8810.
Apply the Limitation Rules: Use the form’s worksheets to offset passive income with passive losses.
Determine Allowable Amounts: Identify the portion of losses that can be deducted against current income and the portion that must be suspended.

How Passive Losses Affect Your Overall Tax Bill

Passive activity loss limitations are designed to prevent tax shelters. If a corporation has a $100,000 loss from a passive rental activity, it cannot simply use that loss to reduce the tax liability of its primary, active consulting business. Form 8810 forces the corporation to track these losses separately. By limiting the immediate deduction, the IRS ensures that passive losses are only used to offset passive income or are held until the passive activity is fully disposed of in a taxable transaction.

Common Mistakes When Calculating Passive Loss Limitations

Taxpayers often encounter difficulties when navigating these rules. Common mistakes include:

Confusing Active and Passive: Misclassifying an active business as passive, or vice versa, which leads to incorrect tax reporting.
Ignoring Material Participation: Failing to document the hours spent on an activity, which is the primary test for active participation.
Overlooking Carryforwards: Forgetting to include suspended losses from prior years, which can result in an overpayment of taxes.
Treating Form 8810 as a Credit Form: Assuming the form is only for tax credits, when it is primarily a tool for loss limitation.

FAQ

What is IRS Form 8810 used for?

It is used by personal service and closely held corporations to calculate the limitations on passive activity losses and credits, determining what can be deducted in the current year.

Is Form 8810 for individuals?

No, individuals generally use Form 8582 to report passive activity loss limitations.

Can passive losses be carried forward?

Yes, any passive loss not allowed in the current year is suspended and carried forward to the next tax year.

What is material participation?

Material participation is the standard used to determine if an activity is active or passive. If a taxpayer participates in an activity on a regular, continuous, and substantial basis, it is generally considered active.

Where do I report the allowed passive loss?

Once the allowed amount is calculated on Form 8810, it is typically reported on the appropriate lines of the corporate income tax return, such as Form 1120.