Creating Elegant Sustainable Solutions for Companies and Individuals

The Team at Karen Collom, CPA:

Teresa, Karen and Mary 

Photography by:: Shutter Ray Photography

Karen Collom, CPA is a Texas-based accounting firm that provides a full range of accounting, bookkeeping and tax services to individual and small- to medium-sized businesses.   Since 2004, the firm has provided services to businesses that lack a bookkeeper, controller, or CFO — or simply choose to outsource those functions. Global clients include foreign nationals in the US and US Citizens living abroad.  They also provide services for seniors including managing monthly finances and bill pay, as well as estate settlement services, in the event of a death of a business partner, spouse or parent. ​

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Latest Office Updates

Planning for Tax Prep 2020

We can assist with estimating and managing your tax liability before year end.  After December 31st,  there are minimal options available to affect your year-end tax liability.   


2020 Engagement Letters

  • Business clients watch for an email and postal mail notice regarding 2020 tax prep in Mid-November. 

  • Individual tax preparation clients looks for an email and postal mail notice in Mid-December. 

Office Closings

Our office will be closed on the following days during the upcoming holidays:



Tuesday, Nov. 24th  – Friday, Nov. 27th.


Monday, Dec. 21st – Friday, Dec. 25th

New Years

Thursday, Dec. 31st – Friday, Jan. 1st

Happy Holidays!

Tax Documents

Drop-off Location 

The office building is moving reception for our offices to the second floor. 


If you are dropping off tax documents, please come up the elevator to the second floor reception area - Suite 200.


1333 W. McDermott Dr.

Suite 200

Allen, TX 75013 

2020 Estimated Tax Payment Deadline: January 15, 2021

If you need assistance with estimating this tax payment, please schedule a planning meeting with Karen by emailing:

Tax Updates
Our Services


Tax Preparation

Tax Minimization Strategies

Tax Compliance

Senior Assistance & Estate Settlement Services

International Tax Services

Learn More


 Bundled Tax & Accounting Packages 

Administrative/ Essential 


Executive / Premium


Tax Preparation

Tax Minimization Strategies

New Business Set-up Consulting

Quickbooks Training and Support* 
For Clients Only

Learn More

Meet Our Team

The team at Karen Collom, CPA, works together to create sustainable solutions for our clients that allow for client growth and change. Building relationships is tantamount to what we do. Our clients entrust us with their financial security, and we never consider them just a number.

Karen Collom - CPA

Mary Salazar  - CPA

Teresa Michelsen
Office Manager
Certified Quickbooks Bookkeeper

Image by Jess Bailey

30-Minute Consultation

Contact us to see how our accounting expertise and personalized services can save you time, money and frustration on all accounting matters.

To ensure that there is a good fit between us, we offer a 30 minute complimentary in-person session to discuss your needs and our solutions. 

Complete and submit the form and we will reach out to schedule your session.

1333 W McDermott Dr
Suite 200, Allen, TX 75013


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©2020 Karen Collom CPA.

1333 W McDermott Dr
Suite 200, Allen, TX 75013


* Quickbooks is a registered trademark and/or service mark of Intuit Inc.

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