📅 2026 Tax Deadlines & Client Resources

Litherland Tax & Accounting Services, LLC provides helpful resources to keep clients informed, organized, and prepared throughout the year.Use this page to find important tax deadlines, secure client portal access, IRS and state tax links, payment resources, and helpful tools for staying on track.

 

👤 Individuals & Self-Employed Clients

January 15, 2026

• 4th quarter 2025 estimated tax payment due

 

April 15, 2026

• 2025 individual income tax returns due

• Deadline to request an extension for individual returns

• 2025 tax payments due, even if an extension is filed

• 1st quarter 2026 estimated tax payment due

• Traditional IRA and Roth IRA contribution deadline for 2025, if eligible

 

June 15, 2026

• 2nd quarter 2026 estimated tax payment due

 

September 15, 2026

• 3rd quarter 2026 estimated tax payment dueOctober 15, 2026

• Extended 2025 individual income tax returns dueJanuary 15, 2027

• 4th quarter 2026 estimated tax payment due

 

Self-employed and Schedule C clients should also keep income, expenses, mileage, receipts, contractor payments, and estimated tax payment records organized throughout the year.

 

🏢 Businesses, Corporations, Partnerships & Trusts

February 2, 2026

• Employers must provide 2025 Form W-2 to employees

• 2025 Form 1099-NEC generally due to recipients and the IRS

• 2025 Form 1099-MISC generally due to recipients

• Certain employer annual payroll forms may also be due

 

March 16, 2026

• 2025 partnership tax returns due for calendar-year partnerships

• 2025 S-corporation tax returns due for calendar-year S-corporations

• Schedule K-1s generally due to partners and S-corporation shareholders

• Deadline to request an extension for calendar-year partnerships and S-corporations

 

April 15, 2026

• 2025 C-corporation tax returns due for calendar-year corporations

• 2025 trust and estate income tax returns generally due for calendar-year trusts and estates

• Deadline to request an extension for calendar-year C-corporations, trusts, and estates

• 1st quarter 2026 estimated tax payment due for applicable businesses and entities

 

June 15, 2026

• 2nd quarter 2026 estimated tax payment due for applicable businesses and entities

 

September 15, 2026

• Extended 2025 partnership tax returns due

• Extended 2025 S-corporation tax returns due

• 3rd quarter 2026 estimated tax payment due for applicable businesses and entitiesSeptember 30, 2026

• Extended 2025 trust and estate income tax returns generally due for calendar-year trusts and estates

 

October 15, 2026

• Extended 2025 C-corporation tax returns due for calendar-year corporations

 

January 15, 2027

• 4th quarter 2026 estimated tax payment due for applicable businesses and entitiesBusiness clients should keep bookkeeping records, payroll records, contractor information, sales tax records, bank statements, loan information, and year-end financial reports organized throughout the year.

 

🔐 Helpful Client Tools

TaxDome Client Portal

Use the secure TaxDome client portal to upload documents, exchange messages, complete organizers, review documents, and access completed returns.

 

Schedule a Consultation

Appointments should be scheduled directly through our website. LTAS is by appointment only, and appointments are currently offered by phone or video meeting unless otherwise confirmed by LTAS.

 

IRS & State Tax Resources

• IRS Payments – Make federal tax payments online.

• IRS Refund Status – Check the status of your federal refund.

• Michigan Treasury – Access Michigan tax information, payments, and refund resources.

 

📌 Important Note

Deadlines may change due to weekends, holidays, disaster relief, IRS or state updates, or individual circumstances. This page is provided for general informational purposes only and should not be used as a substitute for personalized CPA guidance.

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