MM — Mauricio MidenceMauricio MidenceTax Practice
    Client Portal
    Golden Gate Bridge spanning the San Francisco Bay at sunriseSan Francisco-Oakland Bay Bridge at blue hour twilightModern glass high-rise office towers in a California business districtDiverse Bay Area business team collaborating in a bright modern office

    Bay Area Tax & Financial Services

    Your Financial
    Future, Secured.Perfected.

    Trusted by Bay Area businesses and high-net-worth individuals. We resolve tax problems, plan ahead, and keep your books always a step ahead.

    Or call us
    Golden Gate Bridge spanning the San Francisco Bay at sunriseSan Francisco-Oakland Bay Bridge at blue hour twilightModern glass high-rise office towers in a California business districtDiverse Bay Area business team collaborating in a bright modern office

    Bay Area Tax & Financial Services

    Your Financial
    Future, Secured.Perfected.

    Trusted by Bay Area businesses and high-net-worth individuals. We resolve tax problems, plan ahead, and keep your books always a step ahead.

    Or call us
    Expert-Led PracticeIRS Representation25+ Years Serving the Bay500+ Businesses Served
    MM Online Tax Services

    What We Do

    Every discipline. One standard.

    From resolution to planning to estate and retirement strategy — every service meets the same exacting standard.

    Seasoned male tax advisor in a focused meeting with a Latino business client

    Tax Resolution

    Resolve back taxes, liens, levies, and IRS disputes with experienced representation. We negotiate from strength.

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    Accounting Services

    Full-charge accounting for businesses and individuals. Financial statements, reporting, and strategic advisory.

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    Tax Planning & Preparation

    Proactive tax strategy and accurate filing that reduces your burden and keeps you ahead of regulatory change.

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    Bookkeeping

    Clean, current books that give you clarity and control over your financial position. Always audit-ready.

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    Estate & Trust Tax Preparation

    Trust returns, estate filings, and fiduciary tax preparation that preserves wealth across generations. Structured for continuity.

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    Retirement Planning

    Tax-advantaged retirement strategy for business owners and high earners. 401(k), SEP, defined benefit, and Roth conversions planned with precision.

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    Business Advisory & Strategy

    Beyond accounting — strategic guidance on growth, cash flow, and financial decisions that shape your business for the next decade.

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    Entity Structuring & Succession

    LLC, S-corp, trust, and holding company structures built around your goals. The right entity from day one. Clean transitions when it's time to exit.

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    MM Online Tax Services

    Built on Trust

    A practice measured by results, not promises.

    We serve sophisticated business owners who expect more than compliance. They expect a tax professional who understands the full financial picture and stands beside them when the IRS calls.

    -2,610+Years in practice
    -52,230+Businesses served
    $-5,223M+Tax liabilities resolved
    -10,446%Tailored engagements
    Senior female tax advisor reviewing financial reports with a client in a bright Bay Area office

    Why Choose MM.TAX

    Not your average tax practice.

    We built this practice for business owners who need more than a once-a-year filing. Here is what sets us apart.

    IRS Representation That Holds

    When the IRS calls, you want a seasoned tax professional who has been in the room. We handle audits, appeals, and negotiations with the authority of experience.

    Audit-Ready Year Round

    Most firms prepare for tax season. We prepare for the audit that never comes — because clean books and proactive planning make it unlikely.

    Strategy Before Filing

    We do not just file returns. We build tax strategies that reduce burden, preserve wealth, and position your business for growth.

    Direct Advisor Access

    No layers of staff between you and your advisor. You work directly with a senior tax professional who knows your file inside and out.

    Built for Complex Needs

    Multi-entity structures, high-net-worth individuals, cross-border considerations. We handle complexity that commodity tax shops cannot.

    Transparent Engagement

    Clear scope. Clear fees. No surprises. You know exactly what you are paying for and what you are getting from day one.

    Tax Resolution

    When the IRS calls, we answer.

    Tax problems do not solve themselves. The longer you wait, the worse they get. We step in, take over communication with the IRS, and negotiate the resolution that protects your assets and your peace of mind.

    Confident Black female entrepreneur working through tax resolution documents with her advisory team
    IRS audit representation
    Back taxes & delinquent returns
    Wage garnishment release
    Bank levies & liens
    Offer in Compromise
    Installment agreement negotiation
    Penalty abatement
    Trust fund recovery defense
    MM Online Tax Services

    The MM.TAX Method

    How we work.

    Assess. Plan. Execute. Resolve. A clear process that keeps your finances protected at every stage.

    01

    Assess

    We review your financial position, tax history, and business goals to understand the full picture.

    02

    Plan

    We build a proactive tax strategy tailored to your business structure and long-term objectives.

    03

    Execute

    Accurate bookkeeping, precise filing, and expert oversight keep your finances clean and compliant.

    04

    Resolve

    When issues arise, we handle audits, disputes, and IRS resolution with experienced representation.

    Bright modern professional workspace with organized financial binders and a laptop
    MM Online Tax Services

    Industries We Serve

    Built for the businesses that drive the Bay.

    We understand the tax realities of your industry — not just the numbers on your return.

    Latina professional consultant reviewing a contract in a modern agency office

    Professional Services

    Law firms, consultancies, and agencies with partnership structures and complex compensation.

    Modern Northern California residential architecture with hillside bay views

    Real Estate

    Investors, developers, and property managers with 1031 exchanges and passive activity considerations.

    Diverse software startup team collaborating in a bright San Francisco tech workspace

    Technology & Startups

    Equity compensation, R&D credits, and multi-state nexus for growing Bay Area companies.

    Asian-American healthcare doctor consulting with a patient in a modern clinic

    Healthcare Practices

    Physician groups and dental practices navigating entity structure and retirement planning.

    Construction general contractor in safety gear reviewing architectural plans at a build site

    Construction & Trades

    Contractors and trades businesses with job costing, equipment depreciation, and bonding requirements.

    Mature business owner reviewing estate and wealth strategy with a senior advisor

    High-Net-Worth Individuals

    Complex personal returns, estate planning coordination, and wealth preservation strategies.

    San Francisco financial district skyline glowing at golden hour
    MM Online Tax Services

    Client Results

    Numbers that speak for themselves.

    We measure success in tax savings, resolved liabilities, and clients who stay year after year.

    -3,343%Average reduction in client tax burden
    $-5,223M+Tax liabilities resolved for Bay Area clients
    -52,230+Businesses served for over 25 years
    -10,233%Client retention rate
    MM Online Tax Services

    834 Reviews · 4.9 Stars

    Real reviews from real clients.

    Pulled live from Google and Yelp. Here is what Bay Area business owners say about working with MM.TAX.

    4.9from 834 verified reviews
    BD
    Brunieh D.
    Google
    Verified
    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.
    CH
    Christine H.
    Yelp
    Verified
    I came to Mauricio after I felt like my last accountant wasn't up to par. Mauricio literally saved the day and was so accommodating to my last minute requests. He did my taxes within 1 day and saved m...
    CA
    Caio A.
    Google
    Verified
    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.
    AJ
    Alex J.
    Google
    Verified
    It seems like I will be the first one who will rate them below 5 star! There is a reason behind it! After driving to their offices 2 times because you can not reach them by phone! Sending them emails...
    DC
    Danielle C.
    Google
    Verified
    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 meaningfu...
    JF
    Jennifer F.
    Google
    Verified
    Cristian, was so helpful as a first time customer will be coming back to him next year!
    SG
    Simon G.
    Yelp
    Verified
    Honor your appointments. You made me wait 20+ minutes on an appointment. You wasted my time
    VC
    Vanessa C.
    Google
    Verified
    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...
    RS
    Ricky S.
    Google
    Verified
    Excellent service and very Friendly!
    SS
    Sal S.
    Google
    Verified
    My wife and I had a great experience working with Mauricio Midence on our joint taxes this year. They were incredibly easy to work with — friendly, approachable, and made the whole process stress-free...
    FL
    Freddy L.
    Google
    Verified
    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!
    MV
    MARISOL V.
    Google
    Verified
    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...
    BD
    Brunieh D.
    Google
    Verified
    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.
    CH
    Christine H.
    Yelp
    Verified
    I came to Mauricio after I felt like my last accountant wasn't up to par. Mauricio literally saved the day and was so accommodating to my last minute requests. He did my taxes within 1 day and saved m...
    CA
    Caio A.
    Google
    Verified
    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.
    AJ
    Alex J.
    Google
    Verified
    It seems like I will be the first one who will rate them below 5 star! There is a reason behind it! After driving to their offices 2 times because you can not reach them by phone! Sending them emails...
    DC
    Danielle C.
    Google
    Verified
    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 meaningfu...
    JF
    Jennifer F.
    Google
    Verified
    Cristian, was so helpful as a first time customer will be coming back to him next year!
    SG
    Simon G.
    Yelp
    Verified
    Honor your appointments. You made me wait 20+ minutes on an appointment. You wasted my time
    VC
    Vanessa C.
    Google
    Verified
    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...
    RS
    Ricky S.
    Google
    Verified
    Excellent service and very Friendly!
    SS
    Sal S.
    Google
    Verified
    My wife and I had a great experience working with Mauricio Midence on our joint taxes this year. They were incredibly easy to work with — friendly, approachable, and made the whole process stress-free...
    FL
    Freddy L.
    Google
    Verified
    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!
    MV
    MARISOL V.
    Google
    Verified
    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...
    PG
    Perla G.
    Google
    Verified
    Just came in for a review to go over my taxes and opening up a new company. Highly recommend this place.
    VF
    Vaillen F.
    Yelp
    Verified
    Mauricio was great! Needed him to deal with Oakland Tax Officers. Contacted him on a Thursday. Got a quote on Friday. Two weeks later, all paperwork in and done. Highly Recommended
    RR
    Rafael R.
    Google
    Verified
    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-...
    KL
    Kim L.
    Yelp
    Verified
    No one likes to do their taxes. Especially if you owe money. I reached out to Mauricio Midence tax preparation services to review my completed return. I had a great experience working with Geovanna an...
    DS
    Donald S.
    Google
    Verified
    Professional, and easy place to get your taxes done!! Recommended.
    OP
    Oz P.
    Google
    Verified
    Absolutely amazing! I recommend this place to everyone. I was attended by Christian. He was extremely helpful and professional. He answered every question i had and made the process very easy. The atm...
    CR
    Cynthia R.
    Google
    Verified
    Went today to file my taxes, I’m a first time home owner and did not know what to expect. Mauricio did an excellent job walking me through the tax filing process being a property owner. He went above...
    SL
    Swetha L.
    Google
    Verified
    Love the service. Very friendly
    LL
    Leah G.
    Google
    Verified
    Super knowledgeable and helpful—I’m a loyal customer for almost 10 years. Plus they play the 90’s salsa jams!
    RJ
    Rivera
    Google
    Verified
    Muy buen servicio y confiable por parte de Cristian, me ayudó muchísimo con mis taxes de manera rápida y clara✨
    LC
    Leandro C.
    Google
    Verified
    This is a great place to get help for your taxes. Services is great everyone’s friendly and welcoming. 10/10
    EC
    Erica C.
    Google
    Verified
    Quick and easy. Trustworthy. I’ve been coming here for over 5 years.
    PG
    Perla G.
    Google
    Verified
    Just came in for a review to go over my taxes and opening up a new company. Highly recommend this place.
    VF
    Vaillen F.
    Yelp
    Verified
    Mauricio was great! Needed him to deal with Oakland Tax Officers. Contacted him on a Thursday. Got a quote on Friday. Two weeks later, all paperwork in and done. Highly Recommended
    RR
    Rafael R.
    Google
    Verified
    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-...
    KL
    Kim L.
    Yelp
    Verified
    No one likes to do their taxes. Especially if you owe money. I reached out to Mauricio Midence tax preparation services to review my completed return. I had a great experience working with Geovanna an...
    DS
    Donald S.
    Google
    Verified
    Professional, and easy place to get your taxes done!! Recommended.
    OP
    Oz P.
    Google
    Verified
    Absolutely amazing! I recommend this place to everyone. I was attended by Christian. He was extremely helpful and professional. He answered every question i had and made the process very easy. The atm...
    CR
    Cynthia R.
    Google
    Verified
    Went today to file my taxes, I’m a first time home owner and did not know what to expect. Mauricio did an excellent job walking me through the tax filing process being a property owner. He went above...
    SL
    Swetha L.
    Google
    Verified
    Love the service. Very friendly
    LL
    Leah G.
    Google
    Verified
    Super knowledgeable and helpful—I’m a loyal customer for almost 10 years. Plus they play the 90’s salsa jams!
    RJ
    Rivera
    Google
    Verified
    Muy buen servicio y confiable por parte de Cristian, me ayudó muchísimo con mis taxes de manera rápida y clara✨
    LC
    Leandro C.
    Google
    Verified
    This is a great place to get help for your taxes. Services is great everyone’s friendly and welcoming. 10/10
    EC
    Erica C.
    Google
    Verified
    Quick and easy. Trustworthy. I’ve been coming here for over 5 years.
    Read all 834 reviews
    MM Online Tax Services

    Common Questions

    Straight answers before you ask.

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    Discovery Call

    Ready to take control of your tax future?

    A 30-minute call with a senior advisor. Tell us where you are — we'll map the path forward.

    $250 consultation · In-person at our Pinole office

    Expert-led. Confidential.Reply within one business day.No-pressure consultation.