Trader Tax Deadlines: 2026
Traders, plan ahead for important tax deadlines in 2026. Determine now how you’ll take control of your trader taxes – generating accurate 2025 trader tax reporting, and maximizing your tax savings in 2026.
TradeLog helps traders prepare ready-to-file Form 8949 and other trader tax reporting. TradeLog will generate IRS-required wash sale adjustments across all brokerage accounts, and between stocks and options.
Running out of time and wish someone could just do it for you? Contact our TradeLog Services about preparing your trader tax reporting with a turn-key solution.
Wondering when you can generate finalized 2025 tax reports in TradeLog?
We anticipate release of a major TradeLog application update on or before February 2, 2026. This update will allow final creation of 2025 tax forms. Users will receive a notice when opening TradeLog, once this is release is available. Until then, you can import your trade history for 2025, make any adjustment needed through the year, and verify year-end open positions.
Make sure you have the most current version of the application – click here to learn more.
Get started today with your trader tax reporting and follow our 8-Step Guide for Using TradeLog Each Year.
Did you know recent disasters may qualify you for tax relief?
Click here to explore the IRS information to see if you qualify.
January 15, 2026
Pay final installment of 2025 estimated tax.
January 26, 2026
January 30, 2026
End of wash sale window impacting 2025 trades. If a loss occurred as late as December 31, 2025, a replacement position within 30 days after the loss can trigger a wash sale deferral. Learn how to avoid wash sales.
February 17, 2026
1099-B to be furnished by brokers. Can I use my 1099-B?
March 16, 2026
2025 Filing Deadline for S Corp (Form 1120S) and Partnerships (Form 1065); or file Form 7004 for automatic 6-month deadline extension. Learn about how and why to file an extension.
Deadline for electing Section 475f Trader Tax Status for S Corp and Partnership entities.
April 15, 2026
2025 Filing Deadline for Individuals (Form 1040), or file Form 4868 for automatic 6-month deadline extension. Learn about how and why to file an extension.
2025 Filing deadline for Estates and Trusts (Form 1041), and Corporations (Form 1120); or file Form 7004 for automatic 6-month deadline extension (5.5 months for Form 1041). Learn about how and why to file an extension.
Deadline for electing Section 475f Trader Tax Status for Individuals.
Pay first installment of 2026 estimated tax.
June 15, 2025
Pay second installment of 2026 estimated tax.
September 15, 2026
Extended 2025 Filing Deadline for S Corp (Form 1120S) and Partnerships (Form 1065) if a timely 6-month extension was requested.
Pay third installment of 2026 estimated tax.
October 15, 2026
Extended 2025 Filing Deadline for Individuals (Form 1040) and Corporations (Form 1120) if a timely 6-month extension was requested.
December 1, 2026
Analyze wash sale effects on 2026 taxable results; take action to avoid harmful results before Jan 1. Learn about wash sales and how they affect traders.
January 15, 2027
Pay final installment of 2026 estimated tax.
Learn more about import tax dates from IRS Publication 509
Please note: This information is provided only as a general guide and is not to be taken as official IRS instructions. Cogenta Computing, Inc. does not make investment recommendations nor provide financial, tax or legal advice. You are solely responsible for your investment and tax reporting decisions. Please consult your tax advisor or accountant to discuss your specific situation.