Silicon Valley office building
Meet the founder

Meet Moises Salas III.

Founder and owner of MTS Professional Tax Service — the trusted advisor Silicon Valley families recommend to their families and friends.

Moises Salas III, founder of MTS Professional Tax Service

Moises Salas III

Founder & Owner · San Jose, CA

The story

Thirty years of showing up — one client, one relationship at a time.

Moises founded MTS Professional Tax Service on a simple belief: successful people deserve a tax advisor who is as thoughtful about their financial future as they are about their business.

For over three decades, he has served Silicon Valley individuals and businesses from every walk of life — technology founders and family restaurants, real estate investors and W‑2 professionals, first-time filers and second-generation family enterprises. Every return receives the same personal attention.

Along the way he has built a practice known for four things: honesty, patience, thoroughness, and the kind of long-term thinking that saves clients real money. Many of the families MTS serves today were introduced by clients Moises met twenty years ago.

"My greatest measure of success isn't a return I filed. It's the client who calls me before making a decision — and the one who sends their kids to me twenty years later."

MTS remains a boutique practice, on purpose. Moises takes on a limited number of new clients each year so the work stays personal, the strategy stays sharp, and the relationships last as long as clients want them to.

Experience

The credentials matter. The relationships matter more.

30+ Years of Experience

Three decades preparing individual, corporate, partnership, estate, and trust returns.

Founder & Owner

Personally reviews every return. Nothing outsourced, nothing rushed.

Silicon Valley Focused

Deep expertise in the situations Valley clients actually face — equity, RSUs, exits, real estate.

Year-Round Relationship

The advisor clients call before a big decision — not just at filing time.

Multi-Entity Expertise

Individual, S-corp, C-corp, partnership, estate & trust — under one roof.

IRS Authorized e-file Provider

Secure, efficient federal and state filings across all 50 states.

Introduce yourself.

The best way to know if MTS is right for you is one conversation with Moises.