Events for September 1, 2026

Apr-Jun 2026 Quarterly Due DateFor your tax accounts with quarterly filing and payment requirements for the tax types listed below:Tax Types: •  Oil & Gas Conservation (OGC)Quarterly Prepayment Only: •  Mining Severance (MIN)•  Oil & Gas Severance (OGS)Note: Quarterly prepayments for MIN and OGS are due if the prior year tax exceeded $3,000.File and pay online using Taxpayer Access Point (TAP).

2026 - Homeowner's Tax Credit Application DeadlineThe TC-90H, Homeowner's Tax Credit Application is due by September 1 - submitted to the county where the home is located. For more information, contact your county government listed on the form.