--- title: March 2026 IRS & Maryland Tax Deadlines for Individuals and Small Businesses description: Stay ahead of IRS and Maryland tax deadlines in March 2026 with key filing dates, tips to avoid penalties, and ensure smooth cash flow for individuals and small businesses. --- [Blog](https://alltaxaccounting.com/blog) # [March 2026 IRS & Maryland Tax Deadlines for Individuals and Small Businesses](https://alltaxaccounting.com/blog/march-2026-irs-maryland-tax-deadlines-for-individuals-and-small-businesses) Written by [Summer Blake](https://alltaxaccounting.com/blog/author/alltax-accounting) | Mar 2, 2026 ### For Marylanders, Individuals, Businesses, Payroll Filers, and Fiduciaries   March brings several important IRS and Maryland tax deadlines for individuals, small businesses, and employers—including key March 16 filing dates for S corporations and partnerships, information return filings, and state payroll and sales tax due dates. This article highlights the most common March 2026 deadlines, explains who they apply to in plain language, and offers practical tips for staying ahead of penalties and cash-flow surprises.   - - #### Why March deadlines matter   By March, tax season is fully underway. For many small businesses and pass-through entities, March is when filing and payment deadlines start to arrive quickly—especially the March 16 due date for calendar-year S corporations and partnerships. Employers also face regular payroll and information reporting requirements, and Maryland adds its own filing and payment dates on top of federal rules. Paying attention to these March 2026 deadlines can help you: • Avoid late-filing and late-payment penalties. • Smooth out cash flow by planning for tax payments in advance. • Use extensions strategically when you need more time—but not as an excuse to ignore your books. Below is a practical overview of key IRS and Maryland deadlines that are most likely to affect typical AllTax clients this March. -   - ### Key IRS Deadlines in March 2026 **🏛️** - #### ✅March 2, 2026 – Information Returns and Certain Special Filers Early March is all about finishing information reporting for the prior year. #### Information returns filed on paper (Form 1096 with Forms 1099, 1098, W‑2G) **Who this affects** Businesses and payers that issued 2025 information returns and still qualify to file on paper. **What’s due** Paper filing of Form 1096 (transmittal) with most paper Forms 1099, 1098, and W‑2G for 2025. **Practical tip** Many filers now fall under electronic‑filing requirements. If you are unsure whether you still qualify to file on paper, confirm early to avoid penalties. #### Forms 1094‑C and 1095‑C (Applicable Large Employers) – paper filing **Who this affects** Employers that averaged at least 50 full‑time employees (including equivalents) in 2025 and offer health coverage. **What’s due** Paper filing of Forms 1094‑C and 1095‑C reporting 2025 health coverage information. **Practical tip** Many employers file these forms electronically later in March. Make sure your filing method matches your deadline. #### Forms 1094‑B and 1095‑B – paper filing **Who this affects** Insurers and certain other providers of minimum essential coverage that still file on paper. **What’s due** Paper filing of Forms 1094‑B and 1095‑B for 2025 coverage. #### Farmers and fishermen using the March filing option (Form 1040) **Who this affects** Farmers and fishermen who did not pay all 2025 estimated tax by January 15, 2026. **What’s due** Filing the 2025 Form 1040 and paying any remaining tax. **Planning note** Those who paid all estimated tax by January 15 generally have until April 15, 2026, to file. #### ✅March 10, 2026 – Employee Tip Reporting **Who this affects** Employees who received $20 or more in tips during February 2026. **What’s due** Employees must report February tips to their employer, typically using Form 4070 or an approved system. **Why it matters** These reports affect payroll tax withholding, Forms W‑2, and (for large food and beverage establishments) Form 8027. Employers should remind tipped employees of this recurring requirement to prevent year‑end corrections. #### ✅March 16, 2026 – Major Deadline for Pass‑Through Entities and Employers Because March 15 falls on a Sunday, several key deadlines move to **Monday, March 16, 2026**. #### Calendar‑Year S Corporations – Form 1120‑S **Who this affects** Calendar‑year S corporations. **What’s due** - Filing Form 1120‑S for 2025 - Issuing Schedule K‑1 (and K‑3, if applicable) to shareholders **Extension option** File Form 7004 to extend the return (generally to September 15, 2026). An extension to file does **not** extend the time to pay. #### Calendar‑Year Partnerships – Form 1065 **Who this affects** Calendar‑year partnerships and LLCs taxed as partnerships. **What’s due** - Filing Form 1065 - Issuing Schedule K‑1 (and K‑3, if applicable) to partners **Extension option** File Form 7004 by March 16 to extend the return. Timely filing (or extending) is critical so owners can file their personal returns accurately later in the season. #### S Corporation Election for 2026 – Form 2553 **Who this affects** Businesses electing S corporation status for the 2026 tax year. **What’s due** Form 2553 generally must be filed by March 16, 2026 for calendar‑year entities seeking a 2026 effective date (subject to the IRS ‘2 months and 15 days’ rule and weekend/holiday adjustments). File as early as possible. **Planning tip** S elections affect payroll, reasonable compensation, and distributions. Review the pros and cons before filing. #### Monthly Payroll and Nonpayroll Withholding Deposits **Who this affects** Employers and payers on the monthly deposit schedule. **What’s due** Deposit all federal payroll and nonpayroll withholding taxes accumulated in February 2026. **Practical tip** Schedule EFTPS payments a few days early to avoid last‑minute issues. #### March 16, 2026 – Cross‑border withholding filings (specialized) • These deadlines apply mainly to businesses with international activity, including: - • Forms 1042 and 1042‑S - Form 3520‑A - Forms 8804 and 8805 If you have foreign owners, partners, or payment obligations, confirm whether these filings apply. #### ✅March 31, 2026 – Electronic Filing of Information Returns **Who this affects** Businesses required to file information returns electronically. **What’s due** Electronic filing of certain 2025 information returns, including many Forms W‑2G, 1094‑C, 1095‑C, 1094‑B, and 1095‑B. **Practical tip** Confirm what your payroll provider files versus what you must submit yourself. ### Key Maryland Deadlines in March 2026 #### ☑️March 16, 2026 – Maryland Pass‑Through Entity Returns **Who this affects** Maryland S corporations and partnerships filing Form 510 or related PTE returns. **What’s due** - Filing the 2025 Maryland PTE return - Paying any Maryland tax due Extensions may be available, but payment is still due by March 16 to avoid interest. #### ☑️March 16, 2026 – Maryland Employer Withholding (Monthly Filers) **Who this affects** Maryland employers on a monthly withholding schedule. **What’s due** Depositing Maryland income tax withheld for February 2026. #### ☑️March 20, 2026 – Maryland Sales and Use Tax (Monthly Filers) **Who this affects** Businesses required to file monthly Maryland sales and use tax returns. **What’s due** Filing and paying February 2026 sales and use tax. -     #### How to use this deadlines list   1. **• Identify which categories apply to you.** Are you an employee, self‑employed individual, business owner, or employer with staff? 2. **• Mark your calendar.** Add the applicable dates—especially January 15 and February 2—with reminders a week in advance. 3. **• Gather documents early.** Use January to compile payroll reports, contractor payment reports, and estimated tax calculations. 4. **• Schedule time with your tax advisor.** If any dates or rules are unclear, reach out well before the deadline so there’s time to adjust.   #### How AllTax Accounting Can Help Managing IRS and Maryland deadlines while running a business is a lot to juggle. AllTax can help you: -   -  • Identify which March deadlines apply to you -  • Prepare and file federal and Maryland returns  • Coordinate payroll, information reporting, and sales tax obligations  • Build a clear tax calendar and cash‑flow plan If you’d like help reviewing your March 2026 deadlines or want a second set of eyes on your filings, contact AllTax Accounting. We’ll turn the rules into a clear, manageable plan. - - -   -         [View full post](https://alltaxaccounting.com/blog/march-2026-irs-maryland-tax-deadlines-for-individuals-and-small-businesses) ```json { "@context" : "http://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Summer Blake" }, "dateModified" : "2026-03-02T04:03:50.776Z", "datePublished" : "2026-03-02T04:02:33Z", "headline" : "March 2026 IRS & Maryland Tax Deadlines for Individuals and Small Businesses", "image" : { "@type" : "ImageObject", "height" : 1024, "url" : "https://49046262.fs1.hubspotusercontent-na1.net/hubfs/49046262/AI-Generated%20Media/Images/March%202026%20tax%20deadlines-1.png", "width" : 1536 }, "mainEntityOfPage" : "https://alltaxaccounting.com/blog/march-2026-irs-maryland-tax-deadlines-for-individuals-and-small-businesses", "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "height" : 60, "url" : "/hs/hsstatic/content_shared_assets/static-1.4092/img/default-amp-logo.png", "width" : 60 }, "name" : "AllTax Accounting Blog" } } ```