Tax Deadlines by State
51 states — federal + state deadlines in one place.
June 15, 2026 — Federal Q2 Estimated Tax Payment & Alabama Estimated Tax Payment
June 15, 2026 — Federal Q2 Estimated Tax Payment
June 15, 2026 — Federal & Arizona Q2 Estimated Tax Payment
June 15, 2026 — Federal & Arkansas Q2 Estimated Tax Payment
June 15, 2026 — Federal & California Q2 Estimated Tax Payment
June 15, 2026 — Federal & Colorado Q2 Estimated Tax Payment
June 15, 2026 — Federal & Connecticut Q2 Estimated Tax Payment
June 1, 2026 — Delaware Annual Franchise Tax & Annual Report (Corporations)
June 15, 2026 — Federal & DC Q2 Estimated Tax Payment
June 15, 2026 — Federal Q2 Estimated Tax Payment
June 15, 2026 — Federal & Georgia Q2 Estimated Tax Payment
June 15, 2026 — Federal Q2 Estimated Tax Payment & Hawaii Q2 Estimated Tax Payment
June 15, 2026 — Federal & Idaho Q2 Estimated Tax Payment
June 15, 2026 — Federal & Illinois Q2 Estimated Tax Payment
June 15, 2026 — Federal & Indiana Q2 Estimated Tax Payment
June 15, 2026 — Federal Q2 Estimated Tax Payment & Iowa Q2 Estimated Tax Payment (June 30)
June 15, 2026 — Federal & Kansas Q2 Estimated Tax Payment
June 15, 2026 — Federal & Kentucky Q2 Estimated Tax Payment
June 15, 2026 — Federal & Louisiana Q2 Estimated Tax Payment
June 15, 2026 — Federal & Maine Q2 Estimated Tax Payment
June 15, 2026 — Federal & Maryland Q2 Estimated Tax Payment
June 15, 2026 — Federal & Massachusetts Q2 Estimated Tax Payment
June 15, 2026 — Federal & Michigan Q2 Estimated Tax Payment
June 15, 2026 — Federal & Minnesota Q2 Estimated Tax Payment
June 15, 2026 — Federal & Mississippi Q2 Estimated Tax Payment
June 15, 2026 — Federal & Missouri Q2 Estimated Tax Payment
June 15, 2026 — Federal & Montana Q2 Estimated Tax Payment
June 15, 2026 — Federal & Nebraska Q2 Estimated Tax Payment
June 15, 2026 — Federal Q2 Estimated Tax Payment
June 15 — Q2 federal estimated tax payment due
May 15 — Form 990 due for nonprofits; NJ Sales Tax monthly return due
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits; NY Sales Tax quarterly return due May 20
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits; Ohio Commercial Activity Tax (CAT) quarterly return due
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits; Oregon Corporate Activity Tax (CAT) annual return due April 15 (if not already filed)
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits; SD Sales Tax monthly return due May 20
May 15 — Form 990 due for nonprofits; TN Franchise & Excise Tax return due April 15 (if not already filed)
May 15 — Form 990 due for nonprofits; Texas Franchise Tax return due May 15
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits
May 1 — Virginia Individual Income Tax return due
April 25 — WA B&O Tax and Sales Tax monthly return due
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits
May 15 — Form 990 due for nonprofits