Oklahoma sales tax for contractors

State sales tax rate

4.5% state sales/use tax plus county/city local; no scheduled 2026-27 change seen on page

Source: https://oklahoma.gov/tax/businesses/sales-use-tax.html. Last verified 2026-11-02.

How contractors are taxed

contractor is consumer/user, pays tax on materials/supplies/equipment, charges none; no tax on contract or labor for real property improvements; exempt owners can designate contractor as purchasing agent; nonresident contractors use Packet N (bond if contract over $100k); no special contractor tax

Source: https://oklahoma.gov/tax/helpcenter/businesses.html. Last verified 2026-11-02.

Certificates and forms

Streamlined Sales Tax Certificate of Exemption (F0003), Sales Tax Exemption Packet E, Publication D (exempt sales guide); resale exemption per OAC 710:65-13-200; no named capital-improvement certificate

Source: https://oklahoma.gov/content/dam/ok/en/tax/documents/forms/businesses/streamlined-sales-tax/F0003ExemptionCertificate.pdf. Last verified 2026-11-02.

New-employer unemployment tax

2026 new employer 1.5%, wage base $25,000; 2027 not published on page

Source: https://oklahoma.gov/content/dam/ok/en/oesc/images/misc/Employer-Improtant-Numbers-2026.pdf. Last verified 2026-11-02.

What this page does not cover

Local taxes, special districts, and any detail we could not confirm on an official page are left out on purpose. Confirm current rates, forms and due dates with the state agency and your CPA.

How BossHours helps

BossHours keeps your quotes, invoices and job records in one place so your accountant has what they need at filing time. It does not give tax or legal advice.