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Ohio Business Interest Deduction

Ohio Business Interest Deduction 2026

An Ohio business-interest deduction check needs the federal section 163(j) calculation first, then the OH return treatment. Keep loan statements, business-use records, Form 8990 workpapers when required, and state return adjustments separate from personal interest expenses.

Primary taxpayer

Ohio resident or filer evaluating business interest deduction

Federal check

Review the IRS deduction or income reporting rule first

State check

Ohio return treatment and 2.75% top state rate

Canonical route

/deduction/business-interest/ohio/

What matters for 2026

  • Use this exact state page when the search intent names both the deduction topic and the state.
  • Separate the federal deduction, state return treatment, and local filing records before estimating savings.
  • Verify the current-year IRS and state source links before taking a filing position.

Next step

Use the main deduction guide for calculator inputs, eligibility checks, related forms, and broader federal rules.

Open the full guide

Planning workflow

  1. 1Confirm whether the federal itemized, above-the-line, credit, exclusion, or income-reporting rule applies.
  2. 2Review Ohio filing instructions separately instead of assuming the federal result carries over.
  3. 3Keep source documents, worksheets, receipts, and return workpapers together for audit support.
  4. 4Use the linked LevyIO guide for broader calculator inputs, then return to this page for the state-specific checklist.

Records to keep

  • Federal form or worksheet tied to the deduction topic
  • Ohio return instructions, schedules, or state workpapers
  • Receipts, statements, confirmations, or logs supporting the amount
  • A short note showing how federal and state calculations differ

Primary sources

IRS Form 8990IRS Form 8990 is used to figure the business interest expense limitation under section 163(j).IRS Publication 535Explains business expense deduction rules and interest expense context.Ohio Department of Taxation individual tax formsOfficial Ohio tax forms and instructions for checking state return treatment.

2026 savings example for Ohio

Planning estimate for a single filer earning $62,262 (Ohio median household income in LevyIO's state dataset) who removes $5,000 from taxable income. Federal tax uses the 2026 IRS brackets after the $16,100 standard deduction; OH tax uses the state brackets in LevyIO's dataset and assumes the state follows the federal treatment.

Estimated total savings

$738

Federal savings

$600

$5,291 → $4,691 · 12% bracket

OH state savings

$138

$996 → $858 · 2.75% marginal

Combined marginal rate

14.75%

≈ $148 saved per $1,000 deducted

Federal × Ohio marginal rates (2026, single)

Gross-income ranges include the federal standard deduction. The OH column is the state marginal rate at the midpoint of each range. The last column is the tax saved per $1,000 deducted at that combined rate.

Federal bracketGross income (single)OH marginalCombinedPer $1,000
10%$16,100 - $28,5000%10%$100
12%$28,500 - $66,5002.75%14.75%$148
22%$66,500 - $121,8002.75%24.75%$248
24%$121,800 - $217,8752.75%26.75%$268
32%$217,875 - $272,3252.75%34.75%$348
35%$272,325 - $656,7002.75%37.75%$378
37%Over $656,7002.75%39.75%$398

Eligibility & forms

Businesses with interest expenses

  • Business purpose loans
  • 30% EBITDA limitation for large businesses
  • Properly allocated

Federal forms: Form 8990, Schedule C

Ohio filing notes

The $26,050 zero-bracket benefits low earners. Check your city's income tax rate. Social Security is exempt. Consider municipal tax when choosing where to live.

Common mistakes: Exceeding 30% limitation; Not properly allocating mixed-use.

Frequently asked questions

How much can the Business Interest Deduction save a Ohio taxpayer in 2026?

In LevyIO's example, a single filer with $62,262 of income (the Ohio median household income in our state dataset) who removes $5,000 from taxable income saves about $600 in 2026 federal tax (12% marginal bracket) plus about $138 in Ohio tax (2.75% state marginal rate), roughly $738 combined. It is a planning estimate computed from the 2026 IRS brackets and LevyIO's OH bracket data, not a survey figure.

What is the Ohio income tax rate for 2026?

Ohio has a flat 2.75% income tax. The OH standard deduction in LevyIO's dataset is $0 single / $0 married. First $26,050 tax-free. Then a flat 2.75%. Many cities levy 2-3% income tax.

Who qualifies for the Business Interest Deduction in Ohio?

Businesses with interest expenses. The federal rules are the same in every state; the requirements are: Business purpose loans; 30% EBITDA limitation for large businesses; Properly allocated. Ohio filers should confirm on the OH return whether the state follows the federal treatment.

Which forms do I file to claim the Business Interest Deduction?

Federal: Form 8990, Schedule C. Ohio: check the Ohio Department of Taxation instructions for the matching state schedule. Common mistakes: Exceeding 30% limitation; Not properly allocating mixed-use.

Business Interest Deduction in other states

More Ohio deductions and credits

Sources

IRS tax year 2026 inflation adjustmentsFederal bracket thresholds and standard deduction used in the savings example.Ohio Department of Taxation formsOfficial Ohio individual income tax forms and instructions.

Reviewed 2026-09-17. Estimates are educational planning figures computed from the IRS 2026 inflation adjustments and LevyIO's state bracket dataset; they are not tax advice.