- Worked at the Internal Revenue Service as a graduate student intern, and as a tax specialist in 2002 and 2003.
- Opened his own practice in San Francisco in 2005.
- Has served as the tax advisor at Visor.com since 2017.
William Perez is a former writer for The Balance. He contributed to The Balance for nearly 12 years.
Perez has developed hands-on expertise with personal and business tax, helping people who have late returns, preparing U.S. tax returns for people and businesses with foreign income, representing clients who are under audit, and representing clients who owe taxes and must deal with the IRS's collections department.
Before Perez became a tax professional, he completed a master's degree in philosophy at San Francisco State University.
Perez completed 640 hours of technical training in taxation as part of his on-the-job training with the IRS. He then embarked on a program of self-study which lead to him successfully passing the enrolled agent exam.
He earned his enrolled agent certification from the Internal Revenue Service in 2005.
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