Ohio Contractor Sales Tax 2026: Materials vs. Labor Rules

Quick answer: For permanent real property improvements in Ohio, you do not charge sales tax to the property owner. Instead, you (the contractor) are the legal consumer under Ohio Administrative Code 5703-9-14 and must pay sales tax on all building materials at the time of purchase. However, if your contract involves repairing tangible personal property or installing business fixtures, you must hold a vendor's license and charge sales tax on the entire contract price.

Construction contracting is one of the most heavily audited industries by the Ohio Department of Taxation (ODT). Misclassifying real property improvements versus tangible personal property can leave a general contractor or trade specialist with six-figure liabilities across a standard three-year audit cycle.

Here is the exact framework Ohio law uses to distinguish taxable contracts from non-taxable real estate improvements, which exemption certificates protect your business, and how to source purchases correctly.

The Core Rule: Real Property vs. Personal Property

Under Ohio Revised Code (R.C.) § 5739.01(B)(5) and Ohio Administrative Code (O.A.C.) 5703-9-14, Ohio distinguishes between two fundamentally different types of work:

1. Construction Contracts for Real Property Improvements
2. Sales and Installations of Tangible Personal Property (or Business Fixtures)

Understanding which category your scope of work falls into dictates who pays the tax, who collects it, and what appears on the customer invoice.

graph TD
    A[Contractor Job Scope] --> B{Permanent Real Property Improvement?}
    B -->|Yes| C[Contractor is Consumer]
    C --> D[Pay Sales Tax on Materials to Supplier]
    D --> E[Do NOT Charge Sales Tax to Property Owner]
    B -->|No - Personal Property or Business Fixture| F[Contractor is Retail Vendor]
    F --> G[Buy Materials Tax-Free via Resale Certificate]
    G --> H[Charge Combined Sales Tax on Invoice Total to Client]

1. Real Property Improvements (You Pay Tax on Materials)

A real property improvement occurs when building materials are permanently affixed to land or a building such that their removal would cause substantial physical damage or destroy their usefulness.

Typical examples include:

• Pouring concrete foundations, driveways, or sidewalks
• Framing walls, installing drywall, and rough carpentry
• Installing permanent plumbing, HVAC ductwork, or central furnaces
• Roofing, masonry, and exterior brickwork
• Installing permanent residential electrical wiring

The Tax Mechanism: The contractor is classified as the beneficial consumer of all materials incorporated into the structure. When you buy lumber, concrete, nails, and pipe from your supply house, you must pay the combined state and county sales tax rate at checkout.

When you invoice the property owner, you bill for your contract price (lump sum or time and materials). You never add a separate sales tax line item to the property owner's bill for real property improvements. Your material tax cost is simply an overhead expense factored into your job estimate.

2. Tangible Personal Property & Business Fixtures (You Charge Tax to Customer)

Under Ohio law, certain installations remain personal property or are categorized as "business fixtures" (R.C. 5701.03), even if attached to a building.

Common examples include:

• Wall-to-wall carpeting installed over finished floors
• Restaurant kitchen equipment (hoods, fryers, commercial sinks)
• Retail display cases, shelving, and signage
• Security camera systems and computer data cabling
• Machine shop equipment and industrial wiring

The Tax Mechanism: For these jobs, you act as a retail vendor. You must hold an active Ohio Vendor's License. You buy the materials and fixtures tax-free from your distributor by providing an Ohio Exemption Certificate claiming resale. Then, you charge the customer the full combined sales tax rate on both the fixture and the installation labor.

Ohio Sales Tax Rates for Contractors

When purchasing materials or collecting tax on personal property installations, you must use the combined rate (Ohio's 5.75% base rate plus the applicable county permissive rate). Rates range from 6.50% in Butler, Lorain, Stark, and Wayne Counties up to 8.00% in Cuyahoga and Franklin Counties.

Look up exact county combined rates across all 88 Ohio counties using our Sales Tax by County directory or check delivery addresses with the Ohio ZIP Code Sales Tax Calculator.

Contractor Exemption Certificates: STEC-CC vs. STEC-B

Contractors working on tax-exempt projects often assume they are exempt from sales tax automatically. They are not. You must hold the specific, official documentation in your files before you purchase materials.

Form STEC-CC (Construction Contract Exemption Certificate)

When you work for an entity exempt from Ohio sales tax, the materials incorporated into the real property can be purchased tax-free. Qualifying projects include:

• Federal, state, or Ohio local government facilities (schools, courthouses, water treatment plants)
• 501(c)(3) religious, charitable, or educational organizations
• Hospitals and public utility real property
• Qualifying enterprise zone developments

To claim this exemption at your supply house, you must obtain a completed Form STEC-CC (or STEC-B with the construction contract checkbox marked) signed by the project owner. You then furnish a copy to each building supply vendor when purchasing job-specific materials.

The Trench Truth: Never accept a generic tax-exempt letter from a church or school and file it away. ODT auditors will reject the exemption during an audit if you do not possess a fully completed Form STEC-CC signed by an authorized representative of the project owner specifying the contract location and scope. If rejected, you owe the back tax, 7.0% statutory annual interest, and up to a 50% penalty out of your own profit margin.

Subcontractor Flow-Down Rules

If you are a subcontractor working for a general contractor on an exempt school or hospital project, you do not obtain the certificate directly from the school district.

Instead:

1. The project owner issues Form STEC-CC to the General Contractor.
2. The General Contractor issues a flow-down Form STEC-CC to your subcontracting business.
3. You present that certificate to your suppliers to purchase raw materials tax-free.

Each link in the contractor chain must retain signed copies for the statutory four-year record retention period (R.C. § 5739.16).

Sourcing: What Rate Applies to Delivered Materials?

When you order drywall or concrete delivered to a job site, what rate does the building supply house charge?

Under Ohio's sourcing rules (R.C. § 5739.033), intrastate retail sales are generally origin-sourced for over-the-counter purchases (the supplier charges the rate of their supply yard). However, when the vendor delivers materials to your job site using their own trucks or a common carrier, the sale is destination-sourced to the delivery address.

For instance, if your business is based in Butler County (6.50%), but you order concrete delivered directly to a job site in Franklin County (8.00%), the supplier will bill you at Franklin County's 8.00% combined rate.

Common Contractor Audit Traps

1. Separately Stating Materials and Tax on Real Estate Invoices: If you perform a real property improvement and show a line item for "Sales Tax" on your customer's invoice, ODT treats that collected amount as trust fund tax. Even if you already paid tax to your supplier on the lumber, any tax billed to the customer must be remitted to the state. Never bill "sales tax" on real property improvements!
2. Misclassifying Business Fixtures as Real Property: Installing heavy manufacturing machinery or specialized commercial restaurant equipment is treated as tangible personal property, even if bolted to the floor. Failing to collect sales tax on the equipment installation labor is an immediate audit assessment.
3. Consumable Supplies on Exempt Jobs: Form STEC-CC only exempts materials that physically become part of the finished structure. It does not exempt contractor tools, equipment rentals, scaffold rentals, saw blades, or temporary power hookups. You must pay full sales tax on all tools and consumables, even when working on a public high school.

Filing & Compliance for Contractors

If your contracting firm sells tangible personal property, installs business fixtures, or performs taxable repair work, you must maintain an active Ohio Vendor's License.

• Returns are filed electronically via the Ohio Business Gateway using Form UST-1.
• Most active contractors file on a monthly basis, due on the 23rd day of the month following the close of the period (e.g., April sales tax is due May 23rd, rolling to the next business day if it falls on a weekend or state holiday).
• Even if you had zero taxable retail sales during a reporting period, filing a zero return is mandatory under R.C. § 5739.12(D). Failing to file an active period results in an automatic $50 forfeiture assessment.

Managing dozens of exemption certificates from owners and subcontractors? Track exemption expirations and keep auditable PDF backups with our Certificate Tracker (Free during beta · Premium later).

Frequently Asked Questions

Do contractors charge sales tax on labor in Ohio? For real property improvements (like building a house, replacing a roof, or installing drywall), contractors do NOT charge sales tax on labor or materials to the property owner. Instead, the contractor is the consumer and pays sales tax on materials when purchasing them.

When is a contractor required to collect Ohio sales tax? A contractor must collect sales tax when installing or repairing tangible personal property or business fixtures (such as carpets, decorative light fixtures, or specialized manufacturing equipment), as opposed to permanent real property.

What is an Ohio Construction Contract Exemption Certificate (Form STEC-CC)? Form STEC-CC is used when a contractor performs work for an exempt entity, such as a public school, government agency, or 501(c)(3) nonprofit, or for real property improvements in qualifying enterprise zones. It allows the contractor to buy materials tax-free from suppliers.

Can a contractor use a resale certificate to buy construction materials? Generally no. Contractors cannot buy materials for real property improvements tax-free under a standard resale certificate because they are the legal consumer of those materials under Ohio law, not a reseller.

What rate of sales tax does a contractor pay on materials? The contractor pays the combined state and county sales tax rate (ranging from 6.50% to 8.00% depending on the county) at the location where materials are purchased or delivered.

Sources

• Ohio Revised Code § 5739.01 — Sales Tax Definitions
• Ohio Administrative Code 5703-9-14 — Construction Contracts
• Ohio Revised Code § 5701.03 — Real Property and Business Fixture Definitions
• Ohio Department of Taxation — Construction Contractor Information
• Form STEC-CC — Construction Contract Exemption Certificate