📅 Due Dates for Filing IRS Form 1040 Individual Tax Returns:-

1.   Form 1040 – U.S. Individual Income Tax Return
🗓️ Due Date: April 15
📌 Used by most U.S. taxpayers to report income, deductions, and credits.

2.   Form 1040-SR – U.S. Tax Return for Seniors (Age 65+)
🗓️ Due Date: April 15
📌 Similar to Form 1040 but with a larger font and simplified layout for seniors.

3.   Form 1040-NR – U.S. Non-resident Alien Income Tax Return
🗓️ Due Date:
o  April 15 – if wages subject to U.S. withholding
o  June 15 – if no U.S. wage income
📌 Filed by non-resident aliens with U.S. income.

4.   Form 1040-X – Amended U.S. Individual Income Tax Return
🗓️ Due Date: Within 3 years from the original due date (including extensions)
📌 Used to correct previously filed Form 1040, 1040-SR, or 1040-NR.

5.   Form 1040-ES – Estimated Tax for Individuals
🗓️ Due Dates (Quarterly Payments):
o  1st Payment: April 15
o  2nd Payment: June 15
o  3rd Payment: September 15
o  4th Payment: January 15
📌 For taxpayers with income not subject to withholding (e.g., self-employed).

📝 Extension Option –

File Form 4868 to request an automatic 6-month extension-
📅 New deadline becomes October 15
⚠️ Important: Taxes must still be paid by April 15 to avoid penalties and interest.