Compare 10 cost segregation Colorado firms for 2027, from Denver-area offices to remote studies for Breckenridge, Vail and Aspen ski town rental owners.
Colorado investors own Denver apartments, Front Range warehouses, Boulder lab space and ski town vacation rentals, and cost segregation can speed up depreciation on all of them. This list is for owners, syndicators and CPAs looking for a firm to run a Colorado cost segregation study, whether you need cost segregation Denver owners can get from a local office or cost segregation Breckenridge cabin owners can order remotely. If you need a primer, read our guide on how cost segregation works.
Every firm here has a Colorado office or a clearly documented Colorado track record, and we say which for each. We looked at methodology, audit support and pricing transparency, and mixed national specialists, a regional CPA firm, Colorado-office specialists and flat-fee remote providers. For cost segregation Colorado owners get a state benefit too: Colorado uses rolling conformity to the federal tax code, so it currently follows federal bonus depreciation. A 2026 bill (HB26-1222) would have required a state addback starting in 2027, but the Senate Finance Committee postponed it indefinitely on May 11, 2026. Conformity can change, so check the current rule with your CPA.
The federal rule that matters most in 2027: under the One Big Beautiful Bill Act, signed July 4, 2025, 100% bonus depreciation is permanent for qualifying property acquired and placed in service after January 19, 2025. Property acquired on or before that date stays on the old phase-down, which reaches 0% for property placed in service in 2027.
Colorado Cost Segregation Firms At A Glance
Company
Headquarters
Best For
Standout
KBKG
Pasadena, CA (Denver service page)
Commercial owners and CPA firms
Specialist since 1999 with a Denver office building case study
Haynie & Company
Salt Lake City, UT (Littleton and Loveland offices)
Owners wanting a CPA firm
Retroactive studies with a third-party review
Maven Cost Segregation
Offices in Englewood and Salida, CO, among others
Owners choosing between study tiers
CPA-led firm with two Colorado offices
Cost Seg Smart
Los Angeles, CA (remote, Colorado pages)
Ski town and Denver STR investors
Published flat prices from $495
ICS Tax
Minneapolis, MN (Denver office)
Owners wanting CCSP-reviewed reports
Cost segregation plus 179D and 45L
Engineered Tax Services
West Palm Beach, FL
Larger commercial buildings
Published $14 million Denver office case study
R.E. Cost Seg
Houston, TX (remote, Colorado pages)
Rentals and small commercial
19 Colorado city pages
Seneca Cost Segregation
Albany, OR
Investors comparing study costs
Published Colorado fee ranges
Source Advisors
Arlington, TX
Commercial owners above $500,000
Enhanced and disposition studies
Modern CFO
Not published (remote)
Owners who want an estimate first
Free Colorado calculator and published fee ranges
Best Cost Segregation Firms In Colorado For 2027
1. KBKG — Independent Specialist With A Denver Office Building Case Study
KBKG has performed cost segregation studies since 1999 and runs a dedicated Denver page. It does not list a Colorado office. Colorado presence: documented track record.
Its Denver page features a study for Walker Properties on a new 60,000 square foot office building, which produced more than $400,000 in year-one deductions and about $170,000 in added year-one cash flow. It lists Denver-area candidates including multifamily, hotels and restaurants, office renovations, medical facilities, industrial and distribution properties, retail, adaptive reuse and mixed-use projects, and it advises reconciling the federal schedule to current Colorado Department of Revenue guidance.
KBKG’s principals hold the CCSP designation, and its reports follow the IRS “13 Principal Elements of a Quality Cost Segregation Study.” Smaller properties can use its CostSegregation.com software.
Best for: Denver commercial owners and CPA firms that want an established, audit-focused specialist.
2. Haynie & Company — CPA Firm With Littleton And Loveland Offices
Haynie & Company is a CPA firm based in Salt Lake City with two Colorado offices: Littleton, serving the Denver area, at West Mineral Avenue, and Loveland in Northern Colorado. The Denver Business Journal ranked it 16th on its list of accounting firms by number of CPAs. Colorado presence: offices.
Haynie’s Denver cost segregation page covers commercial buildings, factories, warehouses and rental real estate, and it performs retroactive studies on property placed in service in earlier years. The firm says its studies come with a third-party review designed to hold up under IRS scrutiny, and that the work needs an engineer’s perspective to identify reclassifiable components.
Having the study and the tax return with one firm suits Colorado business owners who already want a regional CPA relationship.
Best for: Denver-area and Northern Colorado owners who want a CPA firm to handle the study and return together.
Maven Cost Segregation Tax Advisors was founded by Sean Graham, CPA, who leads its Denver office in Englewood on South Valley Highway. It also has an office in Salida, in the Arkansas River valley, and reports more than 5,000 studies delivered. Colorado presence: offices.
Maven offers two tiers. Its Colorado page lists Engineered Modeling Studies at $850 to $1,200 and Detailed Engineering Studies averaging $3,800 to $9,700. Detailed studies include a physical inspection by engineering staff, and reports arrive within 30 days of the site visit with audit defense documentation. The firm also prepares Form 3115 for look-back studies.
Its Colorado example is an $845,000 office building placed in service in 2022, and the page names ski lodge equipment among assets that can be reclassified.
Best for: Colorado owners who want a local specialist and a choice between a model and a full engineering study.
4. Cost Seg Smart — Flat-Fee Remote Studies For Ski Town And Denver Rentals
Cost Seg Smart is a Los Angeles provider that works remotely and has a Colorado state page plus pages for Boulder, Frisco, Steamboat Springs and Vail. Its Colorado page covers Aspen, Vail, Breckenridge and Beaver Creek, Summit County cabins, Denver neighborhoods such as RiNo and LoHi, and single-family rentals in Colorado Springs. Colorado presence: documented service coverage, remote.
Residential prices run from $495 under $300,000 to $1,295 for $1 million to $1.5 million, and portfolio bundles get 5% to 15% off per property. Simple residential studies are often delivered the same day, and properties over $3 million or commercial take three to five business days. Reports come with audit support and a CPA-Ready Guarantee.
Its Colorado page also notes that the state generally follows federal bonus depreciation and that conformity should be confirmed with a CPA.
Best for: Ski town and Denver short-term rental owners who want a fast, fixed-price study.
5. ICS Tax — CCSP-Reviewed Studies From A Denver Office
ICS Tax is a specialty tax firm based in Minneapolis that lists a Denver office among its locations and has delivered tax benefits since 2016. Colorado presence: office.
The firm says its cost segregation deliverables are reviewed and certified by in-house Certified Cost Segregation Professionals, a credential granted by the American Society of Cost Segregation Professionals. It offers free consultations and benefit estimates, includes audit support, and can draft Form 3115 when a look-back study applies.
ICS also handles 179D, 45L, R&D credits, property tax and utility incentives, which helps Colorado developers and commercial builders that want several programs reviewed by one team. A Denver office can also make Front Range site visits easier to arrange.
Best for: Colorado developers and commercial owners who want a credentialed specialist with a Denver office.
Engineered Tax Services (ETS) is based in West Palm Beach, Florida, and describes itself as a licensed engineering firm specializing in tax strategies, reporting more than 75,000 completed studies. It runs a Denver cost segregation page and has published a case study on a $14 million Denver office building. It does not list a Colorado office. Colorado presence: documented track record.
ETS says its studies follow the IRS Cost Segregation Audit Techniques Guide, and its team includes CPAs. Its case study library covers self-storage, hotels, medical and dental offices, office buildings and multifamily, which maps well to Front Range commercial property.
The firm also offers 179D deductions, 45L credits and R&D credits, so Colorado developers can bundle several incentives with one provider.
Best for: Owners of larger Colorado commercial buildings who want an engineering-led national firm.
7. R.E. Cost Seg — Virtual Studies Across 19 Colorado Cities
R.E. Cost Seg reports more than 20,000 completed studies and has a Colorado state page plus 19 city pages, from Denver, Aurora and Colorado Springs to Fort Collins, Greeley, Pueblo and Grand Junction. Its Colorado page includes a short-term rental case study on a home bought in 2020 for $430,000. Colorado presence: documented track record, remote.
Site visits are virtual by default, with in-person visits for larger properties. Fully Engineered Studies start at $2,320 for residential and $2,730 for commercial properties, and a Rapid Report starts at $950 for qualifying smaller residential properties. Both include written audit support.
Its asset list includes ranch and agricultural properties, which is useful on the Eastern Plains and Western Slope.
Best for: Colorado rental and small commercial owners who want an engineered study with a virtual walkthrough.
Seneca Cost Segregation is an engineering firm based in Albany, Oregon, with a Colorado page covering Denver multifamily, I-70 corridor warehouses, Boulder and Interlocken lab buildouts, and short-term rentals in Breckenridge, Vail and Aspen. Colorado presence: documented service coverage, remote.
Its Colorado page publishes fee ranges: $3,000 to $5,000 for residential and short-term rental studies, $5,000 to $15,000 for standard commercial studies, and custom scoping at $4 million and above. It suggests rough break-even floors of $250,000 to $500,000 of depreciable basis for rentals and about $1 million for commercial buildings. Studies are prepared by an in-house engineering team, peer reviewed, and come with audit defense.
Best for: Colorado investors who want published fee ranges and a fuller engineered report.
9. Source Advisors — Specialty Tax Firm With Enhanced And Disposition Studies
Source Advisors is a specialty tax consultancy in Arlington, Texas, citing more than 40 years of experience. Its Colorado page says it serves property anywhere in the state; it does not have a Colorado office. Colorado presence: documented service coverage.
The firm offers a standard study, an enhanced study that breaks out building systems likely to be replaced, a disposition study for removed assets and a fixed asset review to correct past depreciation. Its team includes architects, professional engineers, CPAs and LEED-certified professionals, and it suggests $500,000 or more in capitalized costs as a good starting point.
The disposition work is useful for Colorado commercial buildings going through repeated tenant improvements and system replacements.
Best for: Colorado commercial owners with $500,000 or more in building or renovation costs.
10. Modern CFO — Free Colorado Calculator With Published Study Fees
Modern CFO runs FreeCostSeg.com, which offers a free Colorado cost segregation calculator and a no-obligation initial analysis before any paid study. It does not publish a headquarters address. Colorado presence: documented service coverage, remote.
Its Colorado page lists study fees of $1,200 to $2,500 for single-family homes, condos, short-term rentals and 2 to 4 unit properties, $2,500 to $6,000 for standard commercial, and $6,000 to $12,000 for large assets. Studies are engineering-based and signed by a licensed engineer, according to the page. Its lead cost segregation engineer, Matthew Gigantelli, is an ASCSP member, and former IRS engineer James C. Peacock contributes educational content.
Results are usually delivered within a week of confirmation. It is a newer, smaller provider, so ask for a sample report.
Best for: Colorado owners who want a free estimate and a flat quote before committing.
How To Choose A Cost Segregation Firm In Colorado
Do You Need A Colorado Office?
For condos, cabins and single rentals, a remote study from documents and a video walkthrough is usually enough. For large Denver or Front Range commercial buildings, firms with Colorado offices, such as Haynie, Maven and ICS Tax, can get on site more easily.
Has The Firm Studied Your Property Type?
Ask for Colorado or comparable case studies. A firm that studies Denver office towers may not be the best fit for a Summit County cabin. For rentals, see our list of cost segregation companies for short-term rentals.
Is The Study Engineering-Based And Audit-Ready?
Ask who prepares and signs the study, whether it follows IRS guidance, and what audit support is included and for how long.
Does The Fee Make Sense?
Prices range from a few hundred dollars for a remote residential study to five figures for large commercial buildings. Ask for a benefit estimate, and compare quotes on scope, audit support and turnaround as well as price. Our guide to cost segregation study cost explains what drives fees.
Frequently Asked Questions
Does Colorado Follow Federal Bonus Depreciation?
Currently, yes. Colorado uses rolling conformity to the federal tax code, so federal bonus depreciation generally flows through to the Colorado return. A 2026 bill to require an addback was postponed indefinitely, but lawmakers could revisit it, so confirm the rule each year with your CPA.
Does 100% Bonus Depreciation Apply In 2027?
Federally, qualifying property acquired and placed in service after January 19, 2025 is eligible for permanent 100% bonus depreciation. Property acquired earlier follows the old phase-down, which is 0% for property placed in service in 2027.
Does Cost Segregation Lower Colorado Property Taxes?
No. Cost segregation affects income tax depreciation. Property taxes are set by your county assessor and require a separate appeal.
Can I Study A Property I Bought Years Ago?
Yes. A look-back study claims missed depreciation in the current year through a change in accounting method on Form 3115, without amending earlier returns.
Conclusion
Colorado owners can choose local offices or remote specialists. KBKG and Engineered Tax Services bring commercial depth, Haynie, Maven and ICS Tax have Colorado offices, Source Advisors suits larger commercial projects, and Cost Seg Smart, R.E. Cost Seg, Seneca and Modern CFO cover rentals and ski town cabins remotely. Ask each for a benefit estimate and talk to your CPA before you commit. For a nearby market, see our list of cost segregation firms in Utah.
This article is general information, not tax or legal advice.
