Small Biz Tip: Taxes: Important Tax Deadlines

Tips from Wednesday, April 1, 2009

The Small Business tips today highlight the other important tax deadlines, besides April 15.

  1. Most annual returns are due April 15 for unincorporated companies and S corporations. C corps: 2.5 months after close of fiscal year.
  2. Estimated taxes are due four times a year: April 15, June 15, September 15, and January 15.
  3. Sales taxes are due quarterly or monthly, depending on the rules in your state. Check out
  4. Depending on the size of your payroll, employee taxes are due weekly, monthly or quarterly.

Daily Overview: As small business owners, you are responsible for monitoring and reporting aspects of your taxes year round.

I am not a tax professional and have attempted to condense sometimes complicated and detailed tax tips into 140 characters per line. My interpretation may not be exact. Please contact a tax professional when doing your taxes.

Some of the information above was obtained at

Please contact the IRSonline or via telephone for all of your tax

IRS Telephone Assistance for Individuals: Toll-Free, 1-800-829-1040

IRS Telephone Assistance for Businesses: Toll-Free, 1-800-829-4933

IRS Telephone Assistance for Exempt Organizations, Retirement Plan Administrators, and Government Entities: Toll-Free, 1-877-829-5500