IFS is in the business of serving clients with the best financial services recommendations and advice. Please contact us to discuss how we can work with you and your business to better plan for your future needs, whether that need is today, tomorrow, or decades away.


Carl F. Kossmeyer

314-862-4646 ext 206


Mark P. Rowley

314-862-4646 ext 213


Ronald B. Newman

314-862-4646 ext 205


Lisa Lambert
Administrative Assistant

314-862-4646 ext 216






Integrated Financial Services LLC

Accountants, Financial Consultants and Tax Advisors

8000 Maryland Avenue

Suite 860

Clayton, Missouri 63105

Phone: 314-862-4646

Fax: 314-475-2224

Email: carl@ifs-stl.com



We have relocated to the 8000 Maryland Ave Suite 860 address permanently as of Feb 1st 2018, from 7777 Bonhomme Ave Suite 2300. All our phone numbers, fax, and email addresses for our employees will remain the same.


IFS is a professional accounting firm which is dedicated to maintaining the highest standards of financial management and reporting. We are on constant guard to ensure that our clients use the complex tax code to their best advantage, as well as eliminating potential tax pitfalls.


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Income Tax Prep

The complexity of the current tax code demands the experience and knowledge of a tax professional when preparing business and personal income tax returns. Our CPAs and tax professionals at IFS are dedicated to legally and appropriately minimizing tax liabilities for our clients.


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Financial Planning

Whether you are conservative or aggressive in your approach to financial management, IFS’s team can help you make the right moves, at the right times, with the right resources. Our financial planning services take every aspect of your financial landscape into account and devise the most appropriate scenarios for your review prior to moving forward.

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