The Old Tax House

The Old Tax House The Old Tax House- Open Year Round What's our secret? You! The dedication and referrals from our clients helped make us the company we are today.

Founded in 1977, The Old Tax House began with little more than a calculator, a few pencils and a sincere desire to provide quality income tax preparation and accounting services with exceptional customer service. With persistence, hard work, and the best staff in the business, the company grew to become the largest tax office in O'Fallon, Missouri. Assisting our customers with a high level of personal service is our trademark. 45 years later, we’re still committed to those same ideals and are very proud of the company we've become. All of us at The Old Tax House would like to say a heartfelt, Thank You, to our clients.

10/09/2026

If you requested the six-month filing extension from , complete your tax return and file on or before the Oct. 15 deadline: www.irs.gov/file

10/09/2026
OFFICE WILL BE CLOED Oct. 14thSo our staff can be honored at the BBB Torch Award Ceremony!
10/08/2026

OFFICE WILL BE CLOED Oct. 14th
So our staff can be honored at the BBB Torch Award Ceremony!

09/15/2026

If you make quarterly estimated tax payments, mark your calendar. The third estimated tax payment for 2026 is due September 15.

Self-employed individuals, retirees, investors, and others who have income that isn’t subject to withholding may need to make estimated tax payments. Making payments on time can help taxpayers avoid an unexpected tax bill or possible penalties.

Learn more about estimated taxes from the : www.irs.gov/estimatedtaxes

09/14/2026

Use the Tax Withholding Estimator to check if you should make an adjustment now to avoid an unexpected tax bill later. Learn more: https://ow.ly/exWo50ZJv3k

07/03/2026

To get started we need your tax documents and completed forms

Address

8810 Veterans Memorial Pkwy
O'Fallon, MO
63366

Telephone

+16362407706

Website

Alerts

Be the first to know and let us send you an email when The Old Tax House posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to The Old Tax House:

Shortcuts

Share

Category