When must an Ohio pass-through entity withhold for its investors, and who can be left out?
Edvin Givargis Published 6 minute read
The short answer
An Ohio pass-through entity owes withholding tax on Form IT 1140 only on the adjusted qualifying amounts of its qualifying investors, and the second word is doing the work. Much of the IT 1140 computation is subtraction: full-year Ohio resident individuals come out, C corporations come out, tax-exempt investors and retirement plans come out, and investors who establish that they will satisfy the Ohio obligation themselves, historically by exemption documentation and today largely through the structure of the investor schedules, come out as well. The rate on what remains is 3 percent for reporting periods beginning on or after January 1, 2023, a flat rate that replaced the old two-tier structure of 5 percent for individuals and 8.5 percent for entity investors. And no return is owed at all if the adjusted qualifying amounts do not exceed 1,000 dollars, if every investor is excluded, or if the entity files one of the two alternatives that covers the population instead.
The regime and its recent renovation
Ohio taxes nonresident investors' shares of pass-through income through a withholding-style entity tax reported on the IT 1140, filed by qualifying pass-through entities with qualifying investors. The mechanics start with the entity's Ohio-apportioned income and then allocate it investor by investor, but only investors within the regime's reach enter the computation, which is why the exclusion analysis comes before the arithmetic.
The regime was renovated recently enough that pre-2023 intuitions mislead. For years, the tax ran at 5 percent on amounts allocable to individual investors and 8.5 percent on amounts allocable to entity investors, and structuring around the 8.5 percent tier was its own small practice area. For reporting periods beginning on or after January 1, 2023, a single 3 percent rate applies, aligned with Ohio's business income tax rate, and the tier distinction is gone. Returns and workpapers that carry the old rates forward are computing a tax that no longer exists.
The subtraction list
The investors excluded from the adjusted qualifying amounts map to the regime's purpose, which is collecting Ohio tax from investors the state might otherwise never see. Full-year Ohio resident individuals, estates, and trusts are excluded, because Ohio already has them. C corporations are excluded, because they file their own Ohio returns under their own regime. Investors described in IRC 501(c), pension plans, charities, and their kin, are excluded, along with publicly traded partnerships, REITs, RICs, REMICs, and a short list of specialized investors. The 1,000 dollar threshold then excuses the trivial case entirely.
The exclusion that matters most in tiered structures is the investor that is itself a pass-through entity with its own Ohio compliance. Where the lower-tier entity's investor is an upper-tier partnership or LLC that will itself file for its own investors, the withholding obligation should sit once, not at every tier, and Ohio's framework accommodates that through the exclusion structure. In the era when this question was commonly handled by paper, the entity collected a nonresident withholding exemption affidavit from the investor, tracking the specified reasons in the instructions, in substance a certification that the investor either was outside the regime or would satisfy the Ohio obligation directly, and an investor properly covered by such documentation came out of the withholding computation entirely. The instruction language for those specified reasons matched the exemption certificate framework, which is exactly how practitioners used it: paper the exclusion, keep the certification in the file, and compute the tax on the investors who remain. The documentation habit remains sound under the current forms, whatever instrument carries it, because the entity signing the return is the party that answers for an investor omitted without support.
The three-return choice, made once
The IT 1140 no longer stands alone, and the modern Ohio decision is which of three returns to file. The IT 1140 withholds for qualifying investors and leaves residents and excluded investors out. The IT 4708 composite return includes all the investors it covers and computes tax at the same 3 percent rate, with the entity filing in place of its nonresident investors; an entity that files a composite covering all of its nonresident investors owes no IT 1140 at all. And for taxable years where the election is available, the IT 4738 electing pass-through entity return implements Ohio's federal deduction workaround: the entity elects to pay Ohio tax at the entity level on all investors' shares, the investors take a refundable credit, and the entity's owners capture the federal SALT deduction benefit that a mere withholding regime does not deliver.
The choice binds harder than people expect. Ohio's instructions are explicit that once an IT 1140 is filed for a period, the entity may not amend it into an IT 4708 or an IT 4738 for that period. The return filed first is the regime for the year, so the comparison, withholding only, composite, or election, belongs in the planning file before the first filing, not in the amended-return file after it. For many entities the IT 4738 analysis now dominates, since the federal benefit of the election can exceed the entire Ohio tax at stake, but the election has its own eligibility and credit mechanics, and an entity whose investor base is mostly excluded investors may still find the plain IT 1140, or nothing at all, is the right answer.
Practice notes
The Ohio file starts with a census, not a computation. First, classify every investor for the period: resident or not, corporate or not, exempt or not, pass-through or not, because the adjusted qualifying amount is defined by who remains after the exclusions and most errors here are population errors rather than math errors. Second, paper the exclusions: for every investor left out of the computation, the file should hold the basis, residency, entity classification, exempt status, or the investor's own Ohio filing commitment, in whatever form current practice uses, since the entity bears the consequence of an unsupported omission. Third, run the three-return comparison annually and before anything is filed, with the irrevocability rule in view: the IT 4738 election's federal benefit, the composite's simplicity, and the IT 1140's narrowness are different answers for different investor bases, and the first filing forecloses the others for the year. Fourth, purge the old rates from the templates: a workpaper still computing 5 and 8.5 percent tiers is wrong on its face for current periods, and its persistence in rolled-forward files is the most common Ohio error a reviewer finds.
This article states the law as of September 14, 2026
Statutes, rates, thresholds, and agency practice change, and a different set of facts can change the answer. Before acting on anything discussed above, contact G&G State Tax Group to confirm what has changed since this was written and how the rules apply to a specific situation.
G&G State Tax Group, LLC is a state and local tax advisory firm. The firm provides state and local tax consulting and representation in state and local tax controversies. G&G does not prepare or file tax returns, perform attest services, or provide bookkeeping, and is not a CPA firm.