Key federal deadlines for your tax calendar. Dates that fall on a weekend or holiday are moved to the next business day — we note those cases below. Minnesota generally follows federal deadlines unless noted.

Date	Deadline
January 15, 2026	Final estimated tax payment for prior year
January 27, 2026	IRS begins accepting 2025 electronic filings
January 31, 2026	Deadline for W-2s and 1099s
February 15, 2026	Deadline for brokerage statements to be sent
March 15, 2026	Deadline for S-Corp and partnership returns
April 15, 2026	Individual tax return deadline & 1st Quarter Estimated Tax
June 15, 2026	2nd Quarter Estimated Tax Payments
September 15, 2026	3rd Quarter Estimated Tax Payments + Corporate & Partnership Extensions
October 15, 2026	Personal Tax Return Extensions
January 15, 2027	Final estimated tax payment for 2026
January 31, 2027	Deadline for W-2s and 1099s
February 15, 2027	Deadline for brokerage statements to be sent
March 15, 2027	Deadline for S-Corp and partnership returns
April 15, 2027	Individual tax return deadline & 1st Quarter Estimated Tax
June 15, 2027	2nd Quarter Estimated Tax Payments
September 15, 2027	3rd Quarter Estimated Tax Payments + Corporate & Partnership Extensions
October 15, 2027	Personal Tax Return Extensions

Estimated tax payments

If you're self-employed or have income not subject to withholding, you generally need to make quarterly estimated payments. Missing or underpaying can result in a penalty. Call us if you're not sure whether you need to pay estimates.

Extensions

An extension gives you more time to file — not more time to pay. If you owe tax, payment is still due by the April 15 deadline even if you file later. We can help you estimate what you owe so you avoid underpayment penalties.

Questions?

Call us at (651) 631-0571 to reach your preparer.