Washington, DC:

Caplin & Drysdale, Chartered

  • Washington, DC
  • One Thomas Circle NW, Suite 1100, Washington, DC 20005
  • Peer Reviews

    4.9/5.0 (24)
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About our Washington, DC: office

FIRM OVERVIEW: Founded by former IRS Commissioner Mortimer Caplin, Caplin & Drysdale has long been a boutique tax law firm with offices in Washington, DC and New York. It also maintains practices in the fields of tax-exempt organizations, creditors' rights and bankruptcy litigation, and political activity law. The firm's tax practice focuses on international planning for businesses and private clients, tax controversies of all kinds (civil and criminal), employee benefits, and trusts and estates. Caplin & Drysdale represents a full spectrum of tax-exempt organizations and counsels a diverse clientele in compliance with political activities law, government ethics rules, and lobbying registration and disclosure requirements. The firm's litigators have extensive experience in asbestos-related bankruptcy cases, class actions for resolving mass tort liabilities, fraudulent conveyance suits, and other business controversies.


Tax Controversies, Tax Crimes & Tax Litigation: Caplin & Drysdale has been engaged in this practice area for over 45 years, with significant experience in all phases of tax controversy, fraud and tax litigation. The firm also has a robust practice in the area of voluntary disclosures, particularly involving undeclared offshore accounts, which has been an increasing focus of IRS enforcement efforts.

International Tax: Caplin & Drysdale advises clients on matters relating to the taxation of international transactions, operations, and investments and transfer pricing, including tax-efficient structuring of cross-border investments and transactions, as well as optimum use of tax treaties, foreign tax credits, tax deferral, and entity classification.

Tax Exempt Organizations: Serving some of the nation's most prominent private foundations, public charities and other non-profit organizations, the firm has handled a wide range of operational and governance issues for exempt organizations. The group counsels clients on political and lobbying issues, assists clients in raising revenue through a variety of business structures, advises regarding unrelated business tax issues, and monitors relevant legislative and regulatory activities. The firm also represents clients in high profile, complex IRS examinations.

Bankruptcy & Complex Litigation: Caplin & Drysdale has served as creditors' committee counsel for asbestos victims in approximately 20 major corporate reorganizations under Chapter 11. The firm also has substantial experience in other forms of complex litigation, including class actions leading to global mass-tort resolutions, investor suits for securities fraud, creditors' challenges to corporate spin-offs under the law of fraudulent transfers and successor liability, and other business disputes.

Political Law: The firm regularly counsels clients on the laws pertaining to government ethics, lobbying, and campaign finance. The group's attorneys have represented clients on both sides of the political aisle, including corporations, trade associations, connected and non-connected political action committees, political parties, private individuals, presidential campaigns and high profile federal, state, and local candidates.

Private Client: Caplin & Drysdale counsels individuals and families on domestic and cross-border income and estate planning issues, including the use of trusts, foundations and wills and the application of tax treaties. The firm represents domestic and international clients in disputes with the IRS regarding their income, estate, gift and generation skipping transfer tax liabilities.

Employee Benefits: The firm provides legal advice to employers and plan service providers in the following areas: design and administration of qualified plans, legislative and regulatory changes, representation before the Internal Revenue Service, compliance with Title I of ERISA, executive compensation, health and welfare benefits, tax-exempt and governmental employer representation, financial institution and service provider counseling, and employee benefits dispute resolution.

Office Details

Contact Information:
202-862-5000  Phone
202-429-3301  Fax
Mailing Address:
One Thomas Circle NW, Suite 1100, Washington, DC 20005
Office Size:
Year Established:

Practice & Industry Groups

Specific Practice Area and Industry Group Details across multiple offices:

Areas of Practice (14)

Specific Areas of Practice for our Washington office:

  • Tax Controversies
  • Tax Litigation
  • Tax Crimes
  • International Tax
  • Tax Exempt Organizations
  • Bankruptcy
  • Creditors' Rights
  • Complex Litigation
  • Election, Campaign and Political Law
  • Private Client
  • Employee Benefits
  • Corporate Law
  • Business Tax
  • White Collar Defense

People (61)

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International Tax, Tax Controversies

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International Tax, Business, Private Client, Tax Controversies, Investment & Transactional Tax

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Founding Member, Washington, D.C. (Retired)

Business, Tax Controversies, Tax Litigation, Investment & Transactional Tax

Peer Reviews
5.0/5.0 (1) Review
Founding Member, Washington, D.C.

Corporate Law, Corporate, Business & Transactional Tax, Private Client

Peer Reviews

Tax Controversies, Tax Crimes, Tax Litigation, International Tax

Peer Reviews
4.8/5.0 (11) Reviews

Tax Controversies, Tax Crimes, Tax Litigation, International Tax

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Tax Controversies, International Tax, Tax Litigation, Private Client, Business, Investment & Transactional Tax

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Private Client, Tax Controversies

Peer Reviews

Complex Litigation, Bankruptcy

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Corporate, Business & Transactional Tax, Corporate Law, Exempt Organizations

Peer Reviews
4.0/5.0 (1) Review

Peer Reviews

  • 4.9/5.0 (24 reviews)
  • Legal Knowledge

  • Analytical Capability

  • Judgment

  • Communication

  • Legal Experience

  • 5.0/5.0 Review for Rachel Leigh Partain by a Other Legal Professional on 05/07/13 in Tax Law

    Rachel is a highly experienced and knowledgeable tax controversy and litigation attorney. I worked with her on several large-case tax controversy matters before IRS Appeals and in other contexts. She has always impressed me with her ability to conv... Read more

    Read more

    Rachel is a highly experienced and knowledgeable tax controversy and litigation attorney. I worked with her on several large-case tax controversy matters before IRS Appeals and in other contexts. She has always impressed me with her ability to convey complex tax concepts in a clear and understandable manner without overlooking the needed details and with her ability to stay calm and focused under pressure. Read less

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  • 5.0/5.0 Review for Mortimer M. Caplin by a Managing Partner on 05/21/14 in Tax Law

See All 24 Reviews »

*Attorneys who only have peer reviews prior to April 15, 2008 are not displayed.

Documents (269)

Documents by this Firm on Martindale.com

Bar Registry

  • Tax Law

Washington, District of Columbia

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    Washington, DC
    One Thomas Circle NW, Suite 1100
    Washington, DC 20005

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