EXTENDED TY2025 Tax Season Timeline

See below for the Extended TY2025 Tax Season Timeline for all of the US tax forms supported by Taxbit.

Please note: This includes all forms except for 1099-NEC, which cannot be extended.

US Timeline

Date	Form Type(s)	Requirement
Wednesday, February 25, 2026	Form 1099-MISC, K, INT, DIV, R, FMV (RMD) Statement	Approve physical mail delivery
Wednesday, March 4, 2026	Form 1099-MISC, K, INT, DIV, R, FMV (RMD) Statement	Recipient Copy Delivery Deadline
Wednesday, March 11, 2026	Form 1099-B, DA	Approve physical mail delivery
Thursday, March 19, 2026	Form 1099-B, DA	Recipient Copy Delivery Deadline
Wednesday, April 8, 2026	Form 1042-S	Approve physical mail delivery
Wednesday, April 8, 2026	Form 1042-S	Approve forms to be filed by Taxbit
Wednesday, April 15, 2026	Form 1042-S	Recipient Copy Delivery Deadline
Wednesday, April 15, 2026	Form 1042-S	Filing Deadline
Friday, April 24, 2026	Form 1099-MISC, K, INT, DIV, R, B, DA	Approve forms to be filed by Taxbit
Thursday, April 30, 2026	Form 1099-MISC, K, INT, DIV, R, B, DA	Filing Deadline
Wednesday, June 24, 2026	Form 5498	Approve physical mail delivery
Wednesday, June 24, 2026	Form 5498	Approve forms to be filed by Taxbit
Wednesday, July 1, 2026	Form 5498	Filing Deadline

For more information on IRS Forms 1099, please see the General Instructions for Certain Information Returns. In addition, note that if IRS Form 1099 deadlines fall on a Saturday, Sunday, or legal holiday, the due date is the next business day.