Our Services

Seid & Company CPA is more than the typical accounting firm. While we do provide traditional accounting services, we also offer other business consulting services to clients throughout San Luis Obispo county. We serve companies across various industries by providing proactive, innovative and comprehensive solutions. We believe building trust with our clients is essential to helping them reach their goals.

Our services include tax preparation and planning, bookkeeping, business consulting, financial statement preparation (compilations, reviews and audits), examination and collection representation before all tax agencies (IRS, FTB, BOE, EDD and other state tax boards), in-house bookkeeping, payroll and QuickBooks training for our clients’ staff.

We know you will find our entire staff to be friendly, dedicated, and committed to excellence. Being a small firm means we can provide personalized attention to all of our clients.



We continually hear from our clients that what they look for from a tax professional is great tax advice and a trustworthy relationship.  At Seid & Company CPAs, that is what we strive to provide.

Keeping abreast of tax law changes and tax reduction strategies through education we use our knowledge and experience to aggressively minimize taxes in a legal manner.  We establish long-term client relationships and are available throughout the entire year, which helps us get to know each client’s circumstances and helps us gain their trust.

Tax Preparation & Planning Services

  • Individuals
  • Corporations & Partnerships
  • Trusts & Estates
  • Non-Profits
  • Tax Planning

The tax audit is one of the most dreaded events in a person’s financial life. You never know when one will happen to you. Even if you have years of flawless income tax returns under you belt, you may still be chosen for a random audit.

Dealing effectively with the Internal Revenue Service (IRS) or other state or local regulatory authorities requires specialized knowledge and experience. You should never go into a tax audit by yourself. The IRS can be quite intimidating to face alone. You need sound tax audit representation. Fortunately, you can get that from Seid & Company, CPAs.

Mark Seid is uniquely qualified to assist you with your representation needs. Mark spent the first 10 years of his career working for the IRS. In 2000 he passed the examination for non-attorneys to practice before the U.S. Tax Court, a distinction earned by fewer than 300 individuals nationwide.

Audit Representation Services

  • IRS Audits or Examinations
  • IRS Collections Representation
  • Payroll Tax Problems
  • Seizures and Wage Garnishments
  • IRS Liens and Levies
  • Late or Unfiled Tax Returns
  • Payment Plans and Installment Agreements
  • Reduction of Penalties
  • Offer In Compromise

The field of business consulting involves many disciplines since the worlds of taxes, insurance, and estate planning are not mutually exclusive but are very inter-related.  We analyze all aspects of the planning process when consulting clients and helping them meet their goals. Our comprehensive approach helps us make recommendations that consider the many moving parts in their plan.

Business Consulting Services

  • Cash Flow Management & Budgeting
  • Debt Analysis
  • Education & Other Specific Need Planning
  • Insurance & Risk Analysis
  • Income Tax Planning
  • Estate Planning

We work with each small business client to shape our services to meet their specific needs.  The services range from inputting transactional data once per month and providing financial statements to relationships where we are truly an outsourced accounting department; paying bills, invoicing, managing cash flow, analyzing contracts and policies, communicating frequently with the business owner, and providing customized reports.

Whether you have 1 employee or 100, our staff is fully trained to handle all of your payroll needs.  We provide payroll checks or direct deposit, prepare federal & state payroll tax deposits, quarterly & annual payroll tax returns, W-2’s, 1099s, workman compensation insurance reports, and payroll reports.

Bookkeeping & Payroll Services

  • Outsourced Bookkeeping
  • Monthly Financial Statement Preparation
  • Paychecks & Direct Deposit
  • After-the-Fact Payroll Computations
  • Federal and State Payroll Tax Returns
  • Customized Reporting