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About Us

Since our inception, T. S. Allen & Associates has been focused on building a strategic, high-quality tax & accounting practice.

We hear from new clients that the number one reason they came to us is that they did not receive timely or proactive advice from their prior accountant to help them do things better.  Have you ever had a bad surprise at tax time? 

Do you wish you could have more collaboration with your CPA?

We work with our business clients year-round, not just leading up to a deadline. 

Once the end of the year has passed, it may be too late to make changes or improvements in their tax savings. 

So, we dig in well before that!


In many cases, we're able to have the business financials ready to file on a tax return in January! 

Trisha S. Allen, CPA, CTRS, CCA
Owner / Founder

Trisha has worked in accounting and tax for 15 years, specializing in business and individual accounting & advisory services, tax planning, tax preparation, and tax resolution.  She has extensive experience in working with dentists and many other industries.


She specializes in C-Corps, S-Corps, Partnerships, Sole Proprietors, and Individuals.  She has a Master's degree in Accounting & Financial Analysis, and a Bachelor's in Computer Science.  Trisha is an active member of PASBA, The Professional Association of Small Business Accountants and CASBA (Colorado chapter of PASBA).  She is also a member of the American Society of Tax Problem Solvers, providing representation for taxpayers before the IRS and state taxing authorities.

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