Colorado Audit, Tax and Consulting

Serving the Front Range for 40 years

Established in 1979, and in our 40th year serving clients in Colorado and across the Mountain West, RSM’s Denver team now boasts more than 230 audit, tax and consulting professionals dedicated to the region’s middle market. Our growing Denver-based practice is a full-service team replete with numerous regional and national leaders who provide extensive technical and industry expertise to our valued clients.

We are deeply involved with our clients through a proactive, hands-on approach to delivering high-quality service. Our experience and services encompass a range of industries, including financial services and private equity, consumer and industrial products, business and professional services, technology, real estate, and more.  

Commitment to the community

Our commitment to Colorado extends beyond serving the needs of our clients, and includes serving the needs of our community by devoting time, money and efforts to local charities and community organizations throughout the year.

Employment opportunities

For information about employment opportunities currently available in Colorado, please visit the Careers section of our site.


Tax Policy


Tax Policy

The new tax legislation is the most significant tax overhaul to the U.S. tax code in 30 years. How will tax reform affect your tax planning?


Revenue Recognition Resource Center

This resource center provides information about the FASB revenue recognition standard, guidance, implementation ideas and tax implications.

Lease Accounting Resource Center


Lease Accounting Resource Center

This resource center provides information about the FASB 842 lease accounting standard, guidance and implementation ideas.

Colorado Insights

State tax law changes for the second quarter of 2021

A summary of important updates for determining deferred tax provision under ASC 740 for the quarter ending June 30, 2021.

Colorado enacts numerous tax-related bills

Trio of tax bills impact individual and business filers with significant corporate income tax changes scheduled for 2022.

State tax law changes for the first quarter of 2021

A summary of important updates for determining deferred tax provision under ASC 740 for the quarter ending March 31, 2021.

Colorado restores certain business deductions related to the CARES Act

Colorado enacts law restoring certain deductions related the to the CARES Act for both business and individual taxpayers.

Colorado decouples from certain CARES Act provisions

The state will decouple from CARES Act net operating loss, interest expense and excess business losses provisions.

Colorado adopts the Revised Uniform Unclaimed Property Act

Colorado adopts RUUPA with minor variations; shortens dormancy for many property types, and eliminates the standard deduction.

DMA settles Colorado sales tax disclosure lawsuit

Digital Marketing Associations (DMA) Colorado sales and use tax notice and information reporting saga ends in settlement.

Colorado addresses LLC nexus and income tax considerations

Colorado department responds to taxpayer’s request in determining LLC filing responsibilities.

Colorado court excludes holding company from combined group

Colorado trial court rules that a holding company with no property or payroll of its own could not be included in its parent’s combined group.

Electronic messaging services not subject to Colorado SUT

Colorado DOR finds that a company’s sales of enterprise electronic messaging services to Colorado customers are not subject to sales and use tax.

Colorado Office Locations


555 17th St.
Suite 1200
Denver, CO 80202

5990 Greenwood Plaza Blvd. Bldg. 2, Suite 350
Greenwood Village, CO 80111

Steve Riddle, Denver office leader

Careers in Colorado

Search open positions in Colorado, or learn more about working at RSM.

Still a student? Learn more about our Internships.