May 1, 2026

Staying ahead of important tax deadlines helps ensure smooth operations and avoid unnecessary penalties. Each month, we highlight key due dates so you know exactly what’s coming up and can plan accordingly. Be sure to review the items below and reach out if you have any questions or need assistance with compliance.

May

Day

11 Employees Who Work for Tips– If you received $20 or more in tips during April, report them to your employer. See Pub. 531 for more information on how to report tips to your employer.

June

Day

10 Employees Who Work for Tips– If you received $20 or more in tips during May, report them to your employer. See Pub. 531 for more information on how to report tips to your employer.

15 Corporations– Deposit the second installment of estimated income tax for 2026.

15 Individuals– Make a payment of your 2026 estimated tax if you’re not paying your income tax for the year through withholding (or won’t pay in enough tax that way). See Form 1040-ES for more information, including how to make estimated tax payments electronically. This is the second installment date for estimated tax in 2026. Also, see Pub. 505.

15 Individuals– If you’re a U.S. citizen or resident alien living and working (or on military duty) outside the United States and Puerto Rico, file Form 1040 or Form 1040-SR and pay any tax, interest, and penalties due. Otherwise, see Individuals under April 15, earlier. If you want additional time to file your return, file Form 4868 to obtain 4 additional months to file and pay what you estimate you owe in tax to avoid penalties and interest. Then, file Form 1040 or Form 1040-SR by October 15. However, if you’re a participant in a combat zone, you may be able to further extend the filing deadline. See Pub. 3, Armed Forces’ Tax Guide.

July

Day

10 Employees Who Work for Tips– If you received $20 or more in tips during June, report them to your employer. See Pub. 531 for more information on how to report tips to your employer.