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About Us

Awards & Recognition

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tax attorney
irs audit lawyers
tax attorneys
tax audit

Our Vision

Our competitive advantage is that we fully understand what work is squarely within our wheelhouse and we avoid practicing door law (taking whatever work walks in your door).

We believe that the rapid growth of the tax law offices from its inception to date is for the most part attributable to the excellent service we provide and the excellent results that we consistently achieve for our clients. Top shelf client service combined with achieving the best results possible in every client scenario combined with reasonable billing practices and ethical and honest business practices is who we are and what we believe in.

We live by the spiritual principle that we should treat others (including opposing counsel and parties, judicial personnel and government officials) the way we wish to be treated and our firm will be the change that we wish to see in our industry.

Our Mission

  • The Tax Law Offices of David W. Klasing, P.C., is a rapidly growing law firm that utilizes education, intelligence, integrity and experience to provide the most effective and individualized solutions for our clients facing a civil or criminal tax or business controversy.
  • We view our client’s liberty, emotional and financial wellbeing as the most important aspects of any problem they face.
  • For every client that walks in our door, our goal is to identify and isolate the problems they are facing and brainstorm solutions that will produce the best possible result.
  • We take pride in turning what are often overwhelming situations for our clients and making the situation manageable for our clients
  • We ethically and zealously represent our client before the IRS and all of the various California taxing authorities whether they are under audit, in collections or in taking a position on a tax return, defend them in Tax Court and where representing them in a threatened or actual criminal tax dispute.
  • We successfully minimize civil tax liabilities, penalties, interest and criminal tax exposure with federal and state taxing authorities utilizing the firms combined experience, education and expertise in understanding and interpreting tax code, case law and other primary authority and federal and state procedure.
  • We provide excellent service to our clients with respect, loyalty and confidentiality and the reservation of personal judgment for ethical or moral errors our client’s may have made.
  • We strive to assist our clients get back on track and into compliance with the taxing authorities.
  • We strive to minimize the tax assessed by government agencies on an ongoing basis through effective tax planning, accurate tax preparation and via being zealous advocates for our client’s rights with the taxing authorities.
  • We know the difference between tax avoidance and tax evasion, we promote the former and discourage and defend against the latter.
  • Business law and estate planning issues that we handle will be central to our core competencies in taxation.

Our Promise

The relationship between attorney and client is private and will remain that way. At The Tax Law Offices of David W. Klasing we uphold attorney client privilege.

Meet Our Team

Tax Help Videos

Representing Clients from U.S. and International Locations Regarding Federal and California Tax Issues

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Main Office

Orange County
2601 Main St. Penthouse Suite
Irvine, CA 92614
(949) 681-3502

Our headquarters is located in Irvine, CA. Our beautiful 19,700 office space is staffed full-time and always available for our clients to meet with our highly qualified and experienced staff of Attorneys, Certified Public Accountants and Enrolled Agents. We also offer virtual consultations and can travel to meet with clients in one of our satellite offices.

Outside of our 4 hour initial consultation option, we do not charge travel time or travel expenses when traveling to one of our Satellite offices, or surrounding business districts, where it is necessary to meet personally with taxing authority personnel, make court appearances, or any in person meeting deemed necessary for the effective representation of a client. To make this as flexible, efficient, and convenient as possible, David W. Klasing is an Instrument Rated Private Pilot and Utilizes the Firms Cirrus SR22 to service client’s in California and in the Southwest by air. Offices outside these areas are serviced via commercial jet airlines. None of these costs are charged to our clients.

Satellite Offices

(310) 492-5583
(760) 338-7035
(916) 290-6625
(415) 287-6568
(909) 991-7557
(619) 780-2538
(661) 432-1480
(818) 935-6098
(805) 200-4053
(510) 764-1020
(408) 643-0573
(760) 338-7035
(602) 975-0296
New Mexico
(505) 206-5308
New York
(332) 224-8515
(512) 828-6646
Washington, DC
(202) 918-9329
(702) 997-6465
(786) 999-8406
(385) 501-5934