Small Business Tax Deadlines and How to Stay Ahead in 2025

As we head into 2025, small business owners must stay proactive about tax deadlines. Missing key dates can result in penalties and unnecessary stress. Here’s a breakdown of important deadlines for the year and tips to help you stay organized and ahead of the curve.

Key Deadlines for 2025

1. Quarterly Estimated Tax Payments

If you’re self-employed or own a business, quarterly estimated taxes are essential. For 2025, these deadlines are:

• April 15, 2025: First-quarter payment

• June 17, 2025: Second-quarter payment

• September 16, 2025: Third-quarter payment

• January 15, 2026: Fourth-quarter payment

  
  

Missing these deadlines can lead to interest charges, so make sure to plan ahead.

2. Business Tax Filing Deadlines

• March 17, 2025: Partnerships and S Corporations (Forms 1065 and 1120-S) must file or request an extension using Form 7004.

• April 15, 2025: C Corporations and sole proprietors file their taxes (Forms 1120 and Schedule C).

  
  

  3. Payroll Tax Deadlines

Businesses with employees must stay on top of payroll tax deadlines, which depend on your filing schedule. Quarterly filings (Form 941) are due:

• April 30, 2025

• July 31, 2025

• October 31, 2025

• January 31, 2026

  
  
  
  
  
  

Tips for Staying Organized

1. Create a Tax Calendar

Set reminders for all major deadlines to stay on track. Digital tools like Google Calendar or specialized apps can help automate this process.

2. Regularly Update Your Books

Accurate financial records are the foundation of stress-free tax filing. Review and update your bookkeeping regularly to avoid scrambling during tax season.

3. Partner with a Tax Professional

Shelley at ASL Tax offers personalized support for small businesses, ensuring you stay compliant and maximize savings. From bookkeeping to tax filing, she’s here to help every step of the way.

How ASL Tax Can Help

At ASL Tax, we know how challenging tax compliance can be for small business owners. Shelley brings over a decade of experience and a client-focused approach to help you meet every deadline with confidence.

Don’t let tax season catch you off guard. Schedule your consultation today and let us handle the details while you focus on growing your business.