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4.9834 reviews

Your financialfuture,Secured.

IRS problems resolved. Taxes planned ahead. Books kept clean. A senior advisor on your side, online, anywhere in California. No office visit needed.

  • “Just came in for a review to go over my taxes and opening up a new company. Highly recommend this place.”Perla G.
  • “Super knowledgeable and helpful—I’m a loyal customer for almost 10 years. Plus they play the 90’s salsa jams!”Leah G.
  • “Muy buen servicio y confiable por parte de Cristian, me ayudó muchísimo con mis taxes de manera rápida y clara✨”Rivera
  • “Quick and easy. Trustworthy. I’ve been coming here for over 5 years.”Erica C.
  • “Been going to this place for years now. They are very patient and answer all my questions in way that I can understand fully. The vibes are great and everyone is very friendly.”Jennifer V.
  • “Ask for Christian Lrarraga. Very polite, professional, and knowledgeable! Great customers.”Martin S.
  • “Muy amigables muy atentos a cada detalle tengo 5 años con ellos y nunca he pasado malas experiencias, muy recomendable”Ronald H.
  • “Luis was super helpful and knowledgeable with filing our taxes. Would definitely recommend!”Sophia S.
  • “Quick, easy, stress-free and super helpful! Thank so much Cristian!”Paula
  • “They were patient and easy going. Very friendly and knowledgeable staff. Overall, great experience and stress free.”Lucero L.
  • “First year doing an itemized tax deduction. A bit intimidating but the Christian was easy to work with and we didn’t feel rushed. Definitely coming back next year.”Humberto M.
  • “Been going here for a few years now. Great Service and professionalism. They know their stuff as it relates to taxes. Highly recommended.”Tom I.
  • “Christian prepared our taxes and he did amazing! Very clear and professional.”Sandra M.
  • “I have a general partnership, a C corporation and an S corporation my life couldn’t be more complicated. Can’t be thankful enough for Mauricio.”Jorge S.
  • “They were all very nice and helpful, my first time explained everything really well and fast service too!!”carrot
  • “Great service and helpful and very friendly .”Cesar R.
  • “Cristian was absolutely fantastic. Very helpful and informative. Respectful and straightforward. Any questions are always answered with ease and a wealth of knowledge.”Patrick N.
  • “Very fast and convenient. I come here every year!”Luis R.
  • “Luis helped me a lot . Gave me a really helpful paper for my business to track expense and all sorts of things . They speak both English and Spanish”Emanuel
  • “Professional and straightforward place to do your yearly taxes.”Herminio J.
  • “Es un lugar recomendado buena asistencia buena asesoría”Kenia T.
  • “Love seeing Christian yearly! Thanks for always allowing us to understand everything. You the best! 🥳🥳🥳”RedG M.
  • “Make your appointment with Christian!!! hands down the best! Thank you.”Angie
  • “Ignacio our taxes person the best great job thank you👍”REM R
years in practice
25+
years in practice
businesses served
500+
businesses served
IRS debt negotiated
$12M+
IRS debt negotiated
stars, 834 reviews
4.9
stars, 834 reviews

Not sure where to start?

Talk it through with us, one question at a time.

Three quick steps and you're connected with our digital assistant, 24/7. It answers your questions and routes you to the right advisor. Free, online, no office visit.

Step 1 of 3 · under a minute

Welcome to MM.TAX

Have you worked with MM Tax before?

Online, statewide

Start online. From anywhere in California.

No office visit, no waiting room. Our online team handles everything by phone and video, with secure upload and e-signature.

  1. Call or book

    Talk to the online team today, or book a free 30-minute consult.

  2. Upload and sign

    Send documents securely and e-sign from your phone or computer.

  3. We take it from here

    We handle the work and the IRS, and keep you updated.

Most clients start with a call

Get help now

The online team answers your questions, looks at your situation, and books your free consult. English and Spanish.

In-person meetings with the owner are by appointment only, for complex or high-value matters, with a $250 consultation fee.

IRS notice decoder

Got a letter from the IRS? See what it means in ten seconds.

Pick the notice number on your letter. You'll see what it means, how urgent it is, and what happens if it sits. Then hand it to us.

The notice number is printed in the top or bottom right corner of your letter.

Prefer to talk it through? The online team answers questions and books your free consult.

Tax advisor reviewing financial reports with a client

$12M+

in IRS and state tax debt negotiated for clients

Built on trust

A practice measured by results, not promises.

Business owners come to us for more than compliance. They want someone who understands the full financial picture and stands beside them when the IRS calls.

  • We represent you before the IRS

    Power of attorney on day one. Every IRS and state call and letter comes to us.

  • Audit-ready all year

    Books reconciled monthly and deductions documented, ready for a lender or an auditor.

  • Strategy before filing

    Quarterly check-ins on income, deductions, and estimates. Filing is the last step.

  • One named advisor

    A senior professional who knows your file. No handoffs between strangers.

  • Built for complex situations

    Multi-entity, multi-state, high-income, and mixed personal and business finances.

  • Flat fees, in writing

    Scope, deliverables, and price agreed before work begins. No hourly billing.

Client voices

834 reviews. 812 of them five stars.

Clients name the person who helped them and the problem that got fixed.

4.9 on Google and Yelp

  • Verified Google review
    I’ve been coming here for years. Geovanna helps me out and she is so amazing. She takes her time and explains this complex tax issues and makes it so much simpler for me to understand.
    Brunieh D.last month · Helped by Geovanna
  • Verified Google review
    Mauricio and the team are the real deal. The team brings a wealth of knowledge with professionalism, charisma, and care. I'm glad I've brought my personal and business taxes and tax planning here.
    Caio A.4 months ago · Helped by Mauricio
  • Verified Google review
    Jose Delgado, thank you for your patience, expertise, and easygoing professionalism throughout tax season. You made the process feel smooth and reassuring, and your guidance has had a HUGELY meaningful impact on my life. I highly recommend this company and am truly grateful to ha…
    Danielle C.7 months ago · Helped by Jose
  • Verified Google review
    Super knowledgeable and helpful—I’m a loyal customer for almost 10 years. Plus they play the 90’s salsa jams!
    Leah G.7 months ago
  • Verified Google review
    Christian at Mauricio Midence Tax Preparation provided excellent customer service. He was very informative, patient, and made the entire process smooth and stress-free. Highly recommend!
    Freddy L.7 months ago · Helped by Mauricio and Cristian
  • Verified Google review
    Quick and easy. Trustworthy. I’ve been coming here for over 5 years.
    Erica C.7 months ago
  • Verified Google review
    Ask for Christian Lrarraga. Very polite, professional, and knowledgeable! Great customers.
    Martin S.7 months ago · Helped by Cristian
  • Verified Google review
    Luis was super helpful and knowledgeable with filing our taxes. Would definitely recommend!
    Sophia S.7 months ago · Helped by Luis
  • Verified Google review
    They were patient and easy going. Very friendly and knowledgeable staff. Overall, great experience and stress free.
    Lucero L.7 months ago
  • Verified Google review
    First year doing an itemized tax deduction. A bit intimidating but the Christian was easy to work with and we didn’t feel rushed. Definitely coming back next year.
    Humberto M.8 months ago · Helped by Cristian
  • Verified Google review
    Just came in for a review to go over my taxes and opening up a new company. Highly recommend this place.
    Perla G.last month
  • Verified Google review
    I wouldn’t operate three different businesses. I don’t know how I would do it without Mauricio and his team. They helped me with payroll bookkeeping and making sure all my corporate filings are up-to-date. Highly recommend them.
    Rafael R.4 months ago · Helped by Mauricio
  • Verified Google review
    Cristian was awesome to work with!!! Definitely worth the wait and coming back next year. I was so scared thinking I was going to have to owe money this year, but when he turned his monitor to show me how much I’m getting back my jaw dropped. Best early birthday gift ever!!! Than…
    Vanessa C.7 months ago · Helped by Cristian
  • Verified Google review
    Muy buen servicio y confiable por parte de Cristian, me ayudó muchísimo con mis taxes de manera rápida y clara✨
    Rivera7 months ago · Helped by Cristian
  • Verified Google review
    Mauricio and his team is the Best in the tax industry! Highly appreciate them for always looking out for me and my business. Always gets it done and I have referred multiple complex clients to him and all good reviews from every one. GO HERE!!!!!!!!!!
    MARISOL V.7 months ago · Helped by Mauricio
  • Verified Google review
    Been going to this place for years now. They are very patient and answer all my questions in way that I can understand fully. The vibes are great and everyone is very friendly.
    Jennifer V.7 months ago
  • Verified Google review
    Muy amigables muy atentos a cada detalle tengo 5 años con ellos y nunca he pasado malas experiencias, muy recomendable
    Ronald H.7 months ago
  • Verified Google review
    Quick, easy, stress-free and super helpful! Thank so much Cristian!
    Paula7 months ago · Helped by Cristian
  • Verified Google review
    Mauricio Midence"s services have been always great for me. And Octavio was very professional and speedy with my appointment.3/16/26 UpdateCristian with Mauricio Midence Tax preparations took great care of me. This business continues to provide great service!
    Kwame I.8 months ago · Helped by Mauricio and Octavio
  • Verified Google review
    Luis did an excellent job preparing my taxes. He is very friendly, professional, and takes the time to explain everything thoroughly so you clearly understand the process. I really appreciated how patient he was in answering my questions and making sure everything was accurate. T…
    Joseph R.8 months ago · Helped by Luis

From the Bay to San Diego

Now serving all of California.

One online team, every California county. More states coming soon: Texas, Arizona, Florida.

Whatever your industry, it starts the same way: a free call with the online team.

Common questions

Answers, up front.

Don't see yours? Call the online team. A real person picks up.

What is tax resolution and when do I need it?

Tax resolution is resolving a problem with the IRS or the state: back taxes, unfiled returns, audits, liens, levies, or garnishments. If you've received a notice you don't understand, or a balance you can't pay, that's the time to call.

Do I have to come into the office?

No. We serve clients anywhere in California online, by phone and video, with secure document upload and e-signature. Most clients never visit an office. For complex or high-value matters, the owner meets clients in person by appointment, with a $250 consultation fee.

How are your fees structured?

Flat fees, quoted in writing before work begins, with no hourly billing. The first 30-minute online consultation is free.

Can you represent me before the IRS?

Yes. We file a power of attorney and handle IRS and state communication on your behalf, including audits, notices, and collection actions.

Can you take over mid-year if I already have a tax preparer?

Yes. We review what's been filed and what's in progress, then pick up from there. Switching mid-year often uncovers savings for the current year.

Do you speak Spanish?

Yes. Our team serves clients in English and Spanish.

Get started

Start your free online consult.

Tell us what's going on. A senior advisor will reply within one business day, by phone or video, wherever you are in California.

Step 1 of 3 · under a minute

Welcome to MM.TAX

Have you worked with MM Tax before?