Tax Law and News March 2019 Tax and Compliance Deadlines Read the Article Open Share Drawer Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Click to share on LinkedIn (Opens in new window) LinkedIn Written by Intuit Accountants Team Modified Feb 1, 2019 2 min read Congratulations! You’re more than halfway through tax season and no doubt working diligently. Still, don’t forget about this month’s important tax and compliance deadlines. Here’s the list for March. In March, it’s recommended that you: File extensions for individuals who have not met the deadline for return preparation. Remind individual clients of their April 15 estimated tax payment. File extensions for S corporations or partnerships that will not meet the March 15 filing deadline. Key Compliance Dates: Friday, March 1 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Feb. 23-26. Wednesday, March 6 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on Feb. 27-March 1. Friday, March 8 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on March 2-5. Monday, March 11 – Tipped employees who received $20 or more in tips during February report them to the employer on Form 4070, Employee’s Report of Tips to Employer. Wednesday, March 13 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on March 6-8. Friday, March 15 Monthly depositors deposit FICA and withheld income tax for February. Calendar-year S corporations file 2018 income tax return on Form 1120S, U.S. Income Tax Return for an S Corporation; alternatively, file for an automatic six-month extension. Calendar-year partnerships file 2018 information return (Form 1065, U.S. Return of Partnership Income); alternatively, file for an automatic six-month extension (Form 7004, Application for Automatic Extension of Time To File Certain Business Income Tax, Information, and Other Returns). Semiweekly depositors deposit FICA and withheld income tax on wages paid on March 9-12. Wednesday, March 20 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on March 13-15. Friday, March 22 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on March 16-19. Wednesday, March 27 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on March 20-22. Friday, March 29 – Semiweekly depositors deposit FICA and withheld income tax on wages paid on March 23-26. Intuit® ProConnect™ Resources: The March 2019 Calendar with filing deadlines and reminders for you and your clients Key Tax Facts for 2018 5 Key Tax Changes for Your Individual Clients in 2018 As always, visit Intuit ProConnect for more information and training resources Previous Post Restricted Stock Units: How RSUs Affect Your Clients’ Taxes Next Post IRS Waives Estimated Tax Penalty for Farmers and Fishermen Written by Intuit Accountants Team The Intuit® Accountants team provides ProConnect™ Tax, Lacerte® Tax, ProSeries® Tax, and add-on software and services to enable workflow for its customers. Visit us online or follow us on X, Instagram, Facebook, and LinkedIn. More from Intuit Accountants Team Comments are closed. Browse Related Articles Tax Law and News January 2026 tax and compliance deadlines Client Relationships 7 strategies for scaling personal service in your firm Practice Management Practical uses of AI to make tax season more efficient Practice Management Intuit® Tax Council profile: Katie Helle Client Relationships Choosing just the “right” appreciation gift for a client Practice Management Learning opps give your firm an infinite advantage Tax Law and News ‘Tis the season: 2025 charitable contribution deductions Tax Law and News Resumen de “Una Gran y Hermosa Ley” y Cambios Fiscales Tax Law and News Annual IRS inflation adjustments: TY2025 and TY2026 Webinars Season Hacks: Staffing, Security & Workflow—Dec. 16