Last updated:

Best Tax Attorneys in Boulder

Our Recommended Top 7

We did the research for you!

  • Licensing
  • User Reviews
  • Mystery Shopping Calls

Our goal is to connect people with the best local professionals. We scored Boulder Tax Attorneys on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.



7Top Picks

Learn about our selection process.


featured provider = Featured Provider

1048 Pearl Street Suite 415, Boulder, CO 80302

Why choose this provider?

Harrison LLP is a law office that caters to clients in and around Boulder. It provides legal advice to individuals concerning income, sales, employment, gifts, estates, and excise tax. It represents clients before the IRS and deals with different levels of tax collection, filing, auditing, and reporting. It also assists those seeking to settle their tax debts through installment payment plans or compromise offers. Its tax controversy team has worked with thousands of taxpayers. Harrison LLP has been in operation since 2003.

3107 Iris Avenue, Suite 100, Boulder, CO 80301 Rating

Review Sources

5.0 (1)

Why choose this provider?

Caplan & Earnest attends to the legal needs of its clients in Boulder. The firm offers legal representation and assistance to individuals and businesses involved in estate planning, business, family, immigration, health, and education law matters. Its legal team handles tax concerns, including gift tax issues, federal estate tax returns, tax and non-tax planning wills, generation-skipping transfer tax planning, and estate tax reduction. Caplan & Earnest has been crafting legal solutions for its clients for more than 50 years.

  • Cash Intensive Businesses
  • Tax Defense

6525 Gunpark Dr Ste 370 #122, Boulder, CO 80301 Rating

Review Sources

5.0 (26)
5.0 (3)
5.0 (1)

Why choose this provider?

John D Claudell Esq PC is a law firm that caters to individuals and medium-sized businesses throughout Boulder and the surrounding areas. It offers legal counsel in tax law-related matters. These include tax debt negotiation, delinquent tax return preparation, IRS audits and examinations, and trust fund recovery penalty defense and resolution. It also assists with corporate restructuring to eliminate tax debts. John Claudell, the firm's attorney, has been practicing law for more than 20 years.

4845 Pearl East Circle, Suite 101, Boulder, CO 80301 Rating

Review Sources

5.0 (7)
5.0 (2)

Why choose this provider?

The Cohen Law Firm, P.C., serves as legal, tax, and business advisors to individual and business clients throughout Boulder and the surrounding locations. For the past 16 years, the firm has handled tax compliance, consulting, litigation, and tax counseling while preparing divorce or separation agreements. In addition, the firm evaluates the tax consequences of divorce and separation agreements and serves as a witness in divorce proceedings. Founding attorney Jeffrey Cohen is also a certified public accountant.

  • Release of Tax Lien
  • Sudden Wealth
  • Bankruptcy

4120 St. Lucia St., Boulder, CO 80301

Why choose this provider?

Arena & Associates provides clients in Boulder with tax services. Its advisors provide assistance with tax liability issues, including representation in negotiations, settlements, and resolution. The firm educates its clientele to help them understand their legal rights and protect their income and assets. It develops and implements tax strategies to help clients gain peace of mind. In its dealings with taxing authorities, the firm functions in an administrative capacity. Firm lawyer and CPA Rob Arena has been handling complex financial and tax issues since 1990.

1881 9th Street Suite 110, Boulder, CO 80302

Why choose this provider?

Wilson Sonsini provides legal tax services to Boulder clients. Its practice encompasses various areas of state, international, and federal laws for technology, growth enterprises, and life sciences at different stages of development. The firm represents businesses and funds in relation to private and public mergers and acquisitions and international and domestic transactions. It caters to the legal needs of companies in leveraged and management buyouts and corporate spinoffs, restructurings, joint ventures, and recapitalizations. Wilson Sonsini has been serving technology pioneers for over 60 years.

1499 West 120th Ave., Suite 110, Westminster, CO 80234

Why choose this provider?

The Complex Tax Law Firm caters to clients in Boulder and the surrounding areas. It advises and represents taxpayers in cases of disputed federal and state tax obligations and collections. It is in charge of audits, summons, appearances, appeals, and negotiations for tax lien and levy release. It also handles business tax issues, such as corporate tax planning and ERC audits. Steve Cizik, the firm's managing attorney, has sued tax officials on behalf of hundreds of individuals and businesses.

Disclaimer:  Consumers utilizing are free to communicate and contract with any lawyer they choose. is not involved in the confidential attorney-client relationship. Featured lawyers pay a reasonable advertising cost to market their legal services with and must meet similar selection criteria as other lawyers. All cases are different. Prior results do not guarantee a similar outcome.


  • Where does the Tax Court hold trial sessions closest to Boulder, Colorado?

    The tax court trial sessions closest to Boulder are held in Denver. The location is courtroom C502 at the Byron G. Rogers U.S. courthouse on 1929 Stout Street, with the zip code 80294.

  • Where is the low-income taxpayer clinic that is closest to Boulder, Colorado?

    The low-income taxpayer clinics closest to Boulder are located in Denver. These clinics include Colorado Legal Services, Denver Asset Building Coalition LITC, and the University of Denver Graduate Tax Program LITC. These clinics assist low-income individuals and can offer guidance and support for tax-related matters.

  • Are there civil penalties for failing to file or pay taxes on time in Boulder?

    Yes. Failure to meet tax filing or payment deadlines in Boulder can result in civil penalties imposed by the IRS and Colorado Department of Revenue. These include a 5% monthly late filing fee for overdue returns, a 0.5% monthly late payment fee (up to 25% of the total owed), and daily interest charges based on the current federal short-term rate plus 3%. These penalties and interest are enforced from the tax's due date.

  • What criteria does the IRS use to identify potential tax fraud cases in Boulder?

    The IRS identifies potential tax fraud cases in Boulder by looking for indicators or badges of fraud. These indicators include actions like understating income, failing to file tax returns, submitting false documents, engaging in irregular business practices, and engaging in illegal activities. Once a potential case of fraud is detected, it is referred to the IRS Criminal Investigation unit for a thorough investigation and possible prosecution.

  • Does the city of Boulder generate tax revenue from the sale of marijuana?

    Yes, the city of Boulder generates revenue from the sale of medical and recreational marijuana. This is achieved through the collection of a base 3.86% sales and use tax on medical and recreational marijuana. Additionally, the city imposes an extra 3.50% sales and use tax on recreational marijuana. Moreover, marijuana transferred from a cultivation facility to a dispensary, testing facility, or facility that produces cannabis-infused products is subject to a 5% excise tax.

  • What are the consequences of tax evasion in Boulder?

    In Boulder, tax evasion carries severe penalties upon conviction. Individuals found guilty may face up to five years in prison and fines of up to $100,000. Tax evasion is a highly serious offense with substantial repercussions. Engaging in such illegal activities can have long-lasting consequences on an individual's personal and financial well-being. It is essential to comply with tax laws and fulfill tax obligations to avoid these severe penalties.

  • What should you do if you're being investigated for a tax crime in Boulder?

    If you're being investigated for a tax crime in Boulder, refrain from engaging in conversations with investigators without the presence of your lawyer and avoid relying solely on accountants for defense. A tax attorney can offer guidance, safeguard your rights, and provide representation throughout the investigation and potential litigation process.