About Us

About Platinum Tax Defenders

Since we started in 2011 in Los Angeles, our objective has remained consistent. Our tax resolution services for business and individuals help our clients regain their financial freedom. You come first at Platinum Tax Defenders. The experts at Platinum Tax Defenders are here to assist you with a range of services. We can help you recover from back-tax debt, and get liens and levies lifted. If you owe the IRS $10,000 or more, we can help you.

Led by CEO Sherri Gastellum, our team understands taxes. Also, we’re more familiar with the IRS than any other tax relief firm. Experienced professionals at Platinum include certified public accountants, enrolled agents, and attorneys. Some of our attorneys have even worked directly with the IRS. The experience and value we offer is what makes us one of the most notable tax relief companies in Southern California. It’s no secret that the IRS can be intimidating. We understand the IRS better than anyone. Don’t fight the IRS alone; let us go to bat for you. Resolving tax issues comes with a lot of pain and stress. We’ll make it easier on you, so you can get back to living the life you deserve.

“We have the capabilities and experience to deliver the answers you need to move forward.”
Sherri Gastelum
Sherri Gastelum
CEO , Simi Valley Office

Our Mission

Our mission has remained constant since the day we started our business – to provide top-quality tax resolution services to our clients so that they can regain their financial freedom. We don’t believe anyone should have to live with the burden that stress from taxes can caused. We are experts in our field, and we have a team of tax resolution pros ready to help. We strive to deliver quality services to our clients, while working with the utmost integrity and respecting their privacy.









Our core values


We put our clients first, and you can guarantee we will always act with our client’s best interests in mind. We do the right thing, no exceptions.



We’ve been a company for nearly 10 years, but our expert staff have been working long before we were working together. We know the tax business, and we know the IRS. All of your tax resolution cases are in good hands with our team.



Our team is always driven to deliver top-notch results to our clients. If our clients aren’t successful in getting the tax relief they’re looking for, then we’ve failed. And our motto is to never fail, especially our clients.



We understand that tax issues can be an emotional rollercoaster for our clients. We’ll be transparent and upfront with you. We’ll communicate expectations and ensure that you are fully involved in the status of your case.


Our Clients

We know our clients are the most important part of our business. We know that people come to us with issues that they need resolved. We never take these issues lightly. We fight for our clients as if would if we were fighting for our own family. We know that tax problems can be stressful, and that’s why we’re here.


Quality Service

We continue to be at the forefront of the tax resolution industry by providing the best level of service for our clients. There’s not a case we won’t take on, or a client we won’t work our hardest for. Our team ensures we are always available if our clients have any questions or concerns along the way.



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