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Contact Information
van Rijn & Associates, P.C.
543 Country Club Drive #B124
Simi Valley, CA 93065
P (800) 713-7411
P (818) 634-6243
F (800) 746-1573


van Rijn & Associates, P.C. provides a wide range of services to individuals and businesses in a variety of industries. All of our services are provided directly by a professional and are personalized to our clients' needs. Below is a list of our services. Please click on the type of service for a more detailed description.

Small Business Assistance

  • Accounting and Bookkeeping Services

    Accurate record-keeping is essential to a successful business but can also be complicated and time consuming. Our firm can help you with the organization and day-to-day tasks of bookkeeping so that you can focus on your core business.

  • QuickBooks ProAdvising

  • Tax Planning, Preparation, and Representation

  • Certified Audits, Reviews and Compilations

  • Business Management Services

    van Rijn & Associates, P.C. understand that there are more financial needs that you may have than recordkeeping and preparation of tax returns. Our professional accountants combine their private industry experience with their public accounting expertise and offer your company a variety of professional management type financial services to assist you in your decision making processes and your on-going financial information management.

    Our management advisory services are a natural extension of the relationship we maintain with our clients. We serve as objective researchers, analysts, or advisors to management rather than decision makers.

    The goal is to improve each client's capabilities and resources to meet objectives. This work may range from brief consulting sessions to complete accounting and reporting systems design.

    van Rijn & Associates, P.C.'s management advisory services are a vital part of the service package. Clients and others in the business community recognize that the experience we gain through our work with financial problems of diverse enterprises has equipped us to render a number of valuable services. We counsel clients in the use of accounting data and the techniques of planning and control which are essential for policy-making groups and administrators who carry them out.

    Before accepting a consulting task, we clearly define our role and responsibility, as well as the major tasks to be accomplished, and establish status reporting methods and a timetable for implementation.

    In all cases, van Rijn & Associates, P.C. is the advisor - management remains the final decision-maker.

  • Cash Flow Budgeting and Analysis

    A business can be profitable and still run into trouble due to cash flow issues. We can forecast and evaluate your company's financial condition, estimate financing requirements, and track cash-flow sources and uses.

  • Implementation of Accounting Systems

    Converting important financial information from one system to another is time consuming and it can be challenging to make sure that the information is transferred correctly. We can offer you assistance and guidance with your change in accounting systems and let you concentrate on your core business.

  • Design, Implementation, and Documentation of Internal Controls

    Whether you require assistance with internal controls to meet audit standards or you recognize the need for an internal control structure to safeguard the hard earned assets of your company, we can assist you. We can review your current structure, make recommendations, assist you in the implementation of controls, assist you with employee understanding of the need for such controls and document your internal control structure.

  • Controller Services

    We can provide controller services which include the services listed above and also services like interviewing accounting personnel, oversight of bookkeeping and financial record preparation on an on-going basis, interacting with external relationships such as banking and insurance.

  • Preparation of Miscellaneous Tax Returns such as sales, payroll, city business, personal, 1099s, etc.

    If you need our assistance with filing requirements for quarterly payroll returns, W2s, sales tax reporting, personal property tax returns, preparation of 1099s or any other tax reporting issues, let us know how we can help. We can assist your company in the compilation of information and preparation of returns in an efficient and timely manner.

Tax Planning, Preparation, and Representation

  • Income Tax Return Preparation and Tax Planning Services

    We assist our clients in individual and business tax planning throughout the year. We handle planning and return preparation for individuals, corporations, partnerships, fiduciaries, trusts, and estates.

  • Non-Profit Information Return Preparation

    Whether you are eligible to complete a 990-EZ, require preparation of a form 990, or additionally need to pay taxes on unrelated business income, we can assist you with all of your reporting needs.

  • Preparation of Tax Returns: Payroll, City Business, Sales and Use, Personal Property, 1099s

    If you need our assistance with filing requirements for quarterly payroll returns, W2s, sales tax reporting, personal property tax returns, preparation of 1099s or any other tax reporting issues, let us know how we can help. We can assist your company in the compilation of information and preparation of returns in an efficient and timely manner.

  • Tax Representation

    Professional representation can be vital during an audit, and our experience enables us to guide clients in their dealings with federal and state agencies. If you have been chosen for an audit, the professional representation you can find with our firm can put many of your worries at bay. We are ready and willing to answer any and all questions the IRS or other taxing authority may be asking of you.

Private Postsecondary Schools

  • Financial Audit
  • Student Financial Aid (Title IV) Compliance Audit
  • eZ-Audit Reporting
  • Accreditation and Other Agency Reporting
  • 90/10 Compliance and Consulting
  • Composite Score Planning
  • Controller Services
  • Accounting/Bookkeeping
  • Pre-Audit Assistance and Planning
  • Implementation and Documentation of Internal Controls
  • Budgeting and Forecasting
  • Other Management Advisory Services
  • Tax Preparation and Representation
  • Career Schools
  • More information for Career Schools

QuickBooks ProAdvising

    Our staff can provide you with assistance in setting up and implementing QuickBooks, and offer you personal training and support

    QuickBooks can provide useful and timely information in the form of financial statements, reports and graphs. However, it can only provide this information if you purchase the right product and then install, setup and use it properly. We don't just help you use the software, we help you use it more efficiently and more effectively.

    We offer the following solutions to help meet your QuickBooks needs:

    Personal Training

    We train you personally! Either one-on-one or several individuals within your organization at your company's location.


    We install QuickBooks on your stand alone computer or in a network environment, in either single- or multi-user mode.


    We assist new QuickBooks users with initial setup including: EasyStep Interview, Preferences, Lists, Customers, Vendors, Employees, Banking and Reports. We also help experienced users manage their businesses more effectively by improving their current setup. Many users experience problems and lack the ability to generate and track important information as a result of inadequate setup.


    Our QuickBooks support service can assist you with any installation, setup or operation assistance you might need. In addition, our support is not limited just to the software part of it, but we can also provide accounting and payroll assistance.


    Our QuickBooks review service helps companies that have the human resources to perform daily accounting and payroll tasks, but need an accounting and payroll expert to review your transactions, accounts and reports. This review ensures that you receive timely, relevant and reliable financial information. We also inform you of any corrections, adjustments or reclassifications necessary to ensure that the financial information you receive reflects the correct financial condition of your business. Reviews may be conducted at any time, but monthly reviews provide you with up-to-date information and feedback about your business.

Certified Audits, Reviews and Compilations

    van Rijn & Associates, P.C.'s financial statement services comprise all three levels of assurance depending on your company's needs.

    - Audits offer the highest level of assurance to third parties, and include in-depth examination and confirmation of account balances, inventories, and selected transactions. We perform audits for you to remove errors, ascertaining the validity and reliability of your information.

    - Reviews provide limited assurance to outside interests and involve inquiries and analytical procedures that confirm financial statement matters and identify any items requiring further analysis. We perform reviews to ensure the integrity of your data.

    - Compilations are usually requested for internal purposes and are based upon information provided by a company's management. They do not offer assurance but may involve some adjustment to accounting records.

    - Post-Secondary Schools:Financial Aid and Compliance Audits, Reviews and Compilations
    In addition to providing the services listed above, we understand the challenges that a post-secondary educational institution faces. We can provide financial and compliance audit services and have the knowledge base to meet your unique needs. Schools: Please see Postsecondary Education under Links.

Elder Care

    As your cherished family member gets older, they may need some help with their day-to-day financial tasks. Ordinarily simple tasks such as balancing a checkbook and paying household bills become increasingly difficult for the elderly.

    Most seniors prefer to remain as independent as possible. Rather than relying on a son, daughter or grandchild, they may prefer hiring a professional to help.

    With our elder care services, you get the help of a caring, honest and knowledgeable professional. Your loved ones get assistance with their daily finances and business duties and if they approve it, you are kept informed of every step we make. That way, you always know that your family member's needs are being met.

    Whether your loved one is no longer entirely independent or simply needs extra help to enjoy their lives, you get help in any of the following areas...

    • Reviewing and paying household bills, budgeting, and record keeping.
    • Assistance with check writing and checkbook balancing.
    • Making sure money is received, receipted, and deposited.
    • Handling day-to-day financial transactions such as home repairs, routine maintenance, and emergency medical expenses.
    • Planning retirement account distributions and safeguard against improper disbursements.
    • Preparing an inventory of personal assets and investments.
    • Determining current and long-term cash flow needs by analyzing income and expenses.
    • Monitoring investment portfolio and other assets in conjunction with their investment advisor.
    • Preparing, planning and filing income, trust, gift and estate tax.
    • Providing referrals to local services and agencies.

Information Request for Services Listed Above