Kansas sales tax for contractors
What we found on official Kansas government pages about sales tax and tax setup for contractors. Each line shows its source and the date it was read. This is general information, not tax or legal advice. Rules change: verify with your CPA before you rely on any of it.
State sales tax rate
6.5% state; local 0.10%-3%; no change seen
Source: https://www.ksrevenue.gov/pdf/pub1525.pdf. Last verified 2026-11-02.
How contractors are taxed
contractors/subcontractors are final consumers (pay tax on materials, no resale cert); contractor-retailers buy inventory with ST-28W; repairmen are retailers of a taxable service (tax on parts + labor)
Source: https://www.ksrevenue.gov/pdf/pub1525.pdf. Last verified 2026-11-02.
Filing and due dates
annual tax $1,000 or less -> annual (Jan 25); $1,000.01-$5,000 quarterly (25th); over $5,000 monthly (25th); Form ST-36; portal Kansas Customer Service Center (KCSC)
Source: https://www.ksrevenue.gov/pdf/pub1510.pdf. Last verified 2026-11-02.
Certificates and forms
ST-28A resale; ST-28W contractor-retailer inventory; PEC Project Exemption Certificate; ST-28EE, ST-201, ST-203, ST-28F
Source: https://www.ksrevenue.gov/pdf/pub1525.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.
See also the contractor guides and free tools.
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