Experienced
Since 1982 our team has represented clients with serious tax problems involving criminal tax charges in the US and abroad.
This firm is nationally recognized for winning tough cases through outstanding preparation, expertise, and commitment to achieve the desired result for our clients.
Qualified
- Experienced Tax Attorneys
- Certified Tax Law Specialists
- Enrolled Agents
- Tax Preparers
- Bookkeepers
Aggressive
Our cases are won through depth of knowledge, negotiating skill, aggressive presentation and committed focus on the desired outcome.
This firm understands the problems and priorities of high net worth individuals and how to build a case that will achieve the intended result.
Recent News

United States taxpayers who hold an ownership interest in or signature authority over a foreign

In 2009, Swiss banking institution UBS agreed to pay the United States government about $780

The Internal Revenue Service is tasked with enforcing the portion of the

Currently, about seven million United States citizens live overseas. Since the nation’s tax
What We Can DoOur Team Is Uniquely Qualified To Help You
Confidential Consultation
The immediate benefit of consulting with a tax attorney is the protection of Attorney-Client Privilege.
Team of Experts
This tax law firm brings together decades of experience in a variety of important disciplines.
Over 30 Years Experience
Founded in 1982, this firm has incredible depth and breadth of experience in IRS defense law.
An Outstanding Track Record
This tax law firm is widely recognized, respected and has a reputation for winning tough cases.
Highly Trained Tax Attorneys
Our attorneys are certified tax law specialists, the highest designation available to tax attorneys.
Experienced Negotiators
Our attorneys have consistently succeeded in negotiating the best settlements possible.
IRS Enrolled Agents
Enrolled agents are specially trained and certified to represent taxpayers before the IRS.
Criminal Tax Defense
This firm has a long history of successful defense in cases of tax evasion, tax fraud and criminal offenses.
International Tax Law
Our attorneys are highly respected and sought after for expertise specific to foreign tax cases.
Resolving your tax issue starts with a free consultation.
All conversations with a tax attorney are protected by Attorney-Client Privilege and will never be shared with the IRS.

Free Consultation

Organize Your Documents

Present • Negotiate • Win
Starting with a free consultation we will review the facts of your case and discuss your options, from there our team will organize your documents, build your case, present and negotiate with the IRS and achieve a resolution that will give you a fresh start.

Latest Tax Law Articles

FBAR Filing Deadline Nears for U.S. Taxpayers in Southern California and Elsewhere
0 0United States taxpayers who hold an ownership interest in or signature...
What Our Clients Say

Mitch D. https://plus.google.com/114328355619252997145/about?hl=en
We went to Bill Hartsock when nobody could solve our tax issues with both the IRS and FTB after many years. His work along with his great staff was able to resolve our issues to our great satisfaction. His approach to these institutions is unique and produces results.

Katie E. http://www.yelp.com/biz/the-tax-lawyer-william-d-hartsock-san-diego?osq=the+tax+lawyer
When I contacted this law firm I was in a great deal of trouble with my taxes. They helped me to clear up the problem quickly and efficiently and put my mind at ease. I recommend not waiting another day if you have tax concerns.....give the friendly staff at Wm Hartsocks a call and you will be one step closer to solving your tax issues! It has been wonderful to put my tax problems behind me. I am forever in their debt.

Paul K. http://www.yelp.com/biz/the-tax-lawyer-william-d-hartsock-san-diego?osq=the+tax+lawyer
Bill Hartsock and his staff are brilliant, talented, and very aggressive and efficient, Believe me, they are really good, plus they are so genuine, happy and positive it’s a great pleasure to do business with them. Paul

John A http://www.yelp.com/biz/the-tax-lawyer-william-d-hartsock-san-diego?osq=the+tax+lawyer
Bill Hartsock is the best tax attorney in Southern California. I refer all of my clients in need of tax expertise exclusively to Bill.