Meet the Foundar & CEO
Tiger Singh Gill — Founder & CEO, Tax & Financial Specialist
Tiger Singh Gill is the Founder and CEO of Diamond Tax & Financial, bringing more than 25 years of experience in tax preparation, bookkeeping, payroll, and financial consulting. His reputation for integrity, precision, and client-focused service has established Diamond Tax & Financial as a trusted resource for individuals and businesses across the United States.
Tiger’s career includes a broad range of roles in both the public and private sectors. He has served with esteemed organizations such as the California Department of Tax & Fee Administration, Internal Revenue Service, Aerojet Rocketdyne, Teichert Construction, Peter Holtz CPA, and Tax Relief Advocates. This well-rounded background provides him with a comprehensive understanding of regulatory frameworks and real-world financial challenges across industries.
With a passion for simplifying complex tax matters, Tiger works closely with clients to reduce liabilities, maintain compliance with evolving tax laws, and build financial confidence. His approach combines deep technical expertise with clear, personalized service — ensuring every client feels informed, empowered, and supported.

Professional Memberships
- National Association of Tax Professionals (NATP)
- National Society of Tax Professionals (NSTP)
- Association of Governmental Accountants (AGA)
- Association of Registered Tax Preparers (ARTP)
- American Board of Forensic Accounting
- California Society of CPAs (CalCPA)
- California Tax Education Council (CTEC)
Education
- B.S., Business Administration (Accountancy) – California State University, Sacramento, CA
- M.S., Accounting (Taxation) – Golden Gate University, San Francisco, CA
- M.S., Accounting & Data Analytics (Taxation) – Golden Gate University, San Francisco, CA
- MBA, Finance – William Jessup University, Rocklin, CA


Message From The CEO
At Diamond Tax & Financial, we believe that financial clarity leads to peace of mind. My commitment is to deliver accurate, timely, and customized solutions that help our clients make informed decisions and move forward with confidence. Whether you’re managing a business or planning your personal finances, thank you for trusting us as your financial partner.