“The hardest thing in the world to understand is the income tax.”

– Albert Einstein

Let Us Help


Welcome to our website!

This website exists to provide clients and potential clients with information concerning our firm and our unique, low-pressure approach to personal and professional services. We have an excellent client-retention rate, and we are extremely proud of the high-quality services that our firm provides.

Please, feel free to browse our website to see the services we offer as well as the many helpful resources we provide. When you are ready to learn more about what we can do for you, we encourage you to contact us.

What Our Clients Have to Say

“Renne is excellent in preparing Tax Returns, and I was impressed the work she did. She is experienced and educated, and she understands your tax needs. She prepared my return very diligently and also helped me correcting a lot of mistakes of my previous tax return. I also heard about a lot of other client’s great experiences in accounting and bookkeeping. She is great at her work and would strongly recommend her services.”  Vikas N.

“Renne has knowledge and experience as an Accountant. I am working with her for over eight years when she used to work with another CPA firm. I am paying now less than what I used to pay to another CPA firm. I am happy to have her my accountant because I know my business is in good hands”. Pams V.

Great experience
Micheal Kk, July 20, 2021
“Renne has been incredible to work with. My taxes have been a mess and she has really taken the time to make sure they are back in order and organized. She has amazing customer service and is more on top of my taxes than I am. She is the one that reaches out to make sure I am doing what I need to be doing, which is so nice to have. I will recommend Acct-Tech to anyone possible. She is the best accountants out there and I can’t say enough good things about her.”

Great advice
John P, February 8, 2021
“Act-Tech charges a fair charge for all the services. The first consultation is free. I have called or emailed Renne for multiple questions, sometimes she does not even charge. She is up to date as far as tax compliances, business set up, and helpful in running your business efficiently. I will work with her again because of her experience and knowledge. Great Job.”

Great advice and professional
Tapasya S, January 26, 2021
“Acct-Tech did an awesome job, filing my taxes. Renne is very professional and ready to help in whatever way possible. I would recommend Acct-Tech services to a friend.

Nadira E , Parker,CO, January 26, 2021
“Renne has worked superbly for me and my organization for the last 16 years we’ve been working together. I met her when she was working for another company. I was impressed with her qualifications which are incredible:3 master’s degrees in accounting and Tax, quite impressive and her work speaks for her. She is consistently always trying to save me money on taxes and keeps me informed up to date on any changes in the tax law that could affect me or my business. She is consistently accessible to respond to any inquiries within 24 hours and is easy to work with. Best accountant in the area.”

Easy to work with
R Jefferson, February 10, 2020
“I have been using Acct-Tech for over 2 years and believe that I have received the best accounting and payroll services. Renne is very knowledgeable and knows her job. Her work speaks for itself. Five stars for her.”

Secure Client Portal Login


Where’s My Refund


Sign up for our Tax Newsletter

Send us an email

Your Name (required)

Your Email (required)

Your Message

Main Office


Lone Tree, CO

9233 Park Meadows Dr, Lone Tree, CO 80124, USA

Fort Collins, CO

2580 E Harmony Rd suite 201, Fort Collins, CO 80528, USA

Office Hours

From January 29, 2024 – April 15, 2024
Monday: 10am–8pm
Tuesday: 10am–8pm
Wednesday: 10am–8pm
Thursday: 10am–8pm
Friday : 10am–8pm
Saturday : 10am–6:30pm

After April 15, 2024, to December 31st, 2024:
Monday: 10am–6pm
Tuesday: 10am–6pm
Wednesday: 10am–6pm
Thursday: 10am–6 pm
Friday: 10am–6pm
Saturday: Only on request

We will be closed on the following dates.
If New Year’s Eve is on weekdays than we will be closed.
New Year’s Day: January 1, 2024 (Monday)
Martin Luther King Jr. Day: January 15, 2024 (Monday)
Washington’s Birthday (Presidents Day): February 19, 2024 (Monday)
Memorial Day: May 27, 2024 (Monday)
Independence Day: July 4, 2024 (Thursday)
Labor Day: September 2, 2024 (Monday)
Columbus Day: October 14, 2024 (Monday)
Veterans Day: November 11, 2024 (Monday)
Thanksgiving Day: November 28, 2024 (Thursday)
Christmas Day: December 25, 2024 (Wednesday)
For more information, please call or email us at accttechcs@gmail.com Or admin@accttechcs.com
Phone no: 720-943-8611

Trusted expertise is just a phone call away.

Call for assistance today!