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For businesses

Business Tax Preparation

From Schedule C to multi-member entities — accurate preparation, clear timelines, and year-round availability.

Book an Appointment

What's included

What we handle as part of this service.

  • Entity-specific return preparation (1040 Schedule C, 1120, 1120-S, 1065)
  • California business filings (FTB, SOS where applicable)
  • Owner / partner K-1 distribution
  • Year-end review of books before filing
  • E-file confirmations and copies

Who it's for

If this sounds like you, we're a good fit.

  • Sole proprietors and single-member LLCs
  • Partnerships and multi-member LLCs
  • S-Corporations and C-Corporations
  • Owner-operated businesses ready to organize

Documents you'll need

Bring (or upload) these so we can get started quickly.

Not sure? We share a tailored checklist after the consultation.

  • EIN letter and entity formation documents

  • Profit & loss and balance sheet for the year

  • Bank statements (or bookkeeping access)

  • Payroll summaries (if applicable)

  • 1099s issued and received

  • Prior-year business return (new clients)

Our process

The five steps we walk through with every client.

  1. Schedule a consultation

    Book in person or remotely. Tell us what you need and we suggest the right service path.

  2. Bring or upload your documents

    We share a clear checklist so nothing important gets missed.

  3. Review with a specialist

    We walk through your situation, answer questions, and confirm the plan together.

  4. We prepare, file, or organize

    From tax returns to payroll, formations or filings, we handle the work end to end.

  5. Ongoing follow-up support

    We stay available year-round for questions, notices, and the next step.

Frequently asked questions

Common questions we hear about this service.

  • Deadlines depend on your entity type — typically March 15 for partnerships and S-Corps, and April 15 for C-Corps and individual filers. We confirm the exact dates for your case at the consultation.

Stanza Tax Services office ready for your appointment

Ready when you are

Ready to get organized? Book an appointment today.

Pick a time that works for you — in person at San Pablo or Concord, or fully remote.

Book an Appointment510-255-9194

Related services

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Pairs well with this service.

Bookkeeping Services

Monthly books, clean reports, and a tax season that starts organized.

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Payroll Services

Run payroll on time, with the right filings and clear pay stubs.

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Business Formations

LLCs, corporations and DBAs — formed and registered with the right filings.

Learn more