System Six develops customized bookkeeping and accounting solutions based on the unique needs of each of our clients.

We are a full service bookkeeping and accounting firm in Seattle, WA and we love working with small businesses and high performance entrepreneurs.  We are not a one man bookkeeper or a one-size fits all solution. We are a small team with decades of combined business experience.

The majority of our clients retain us for ongoing weekly or monthly work together. For businesses who have this need for a higher level of support, we provide fully outsourced bookkeeping and accounting services.

Some of our clients just want help with the initial set-up of Quick Books desktop or Quick Books Online so that they can handle their own books successfully with minimal support from our team.  We help these clients get setup properly, laying a solid foundation to work from, and then hand over the books to the small business owner, supporting them as the need arises.

Bookkeeping is more than just historical record keeping.
Hiring System Six will save you money.

We often pay for our services by saving your small business money.

Small business owners are busy.  When your revenues are several hundred thousand to a few million dollars a year, managing growth, employees, and finances can be several full time jobs.

One of our clients was paying over $700 a month in overdraft fees and didn’t know it.  Their previous bookkeeper was tracking the fees, but was not bringing them to the owners attention.

System Six identified the overdraft fees and worked with our client to help them establish a new overdraft line of credit, saving them over $700 a month in overdraft fees. This one strategic decision nearly pays for our fee every month.

Ask our clients.  Our strategic approach provides the peace of mind and greater level of control necessary for creating a business that supports their life rather than having their life revolve around the business.

Check out our Yelp Reviews to learn about how we help our clients.  If you want to talk more, contact us today to see if we can support you and your business.

System Six provides you with the critical foundation for capturing your daily, weekly, and monthly financial activity.  This saves you money and provides you with a foundation of sound financial data needed in order to navigate your business toward growth and profitability.  We’d love to work with you.


Bookkeeping and accounting for small businesses, including:

  • Data entry
  • Bank, credit card, and loan account reconciliation
  • Accounts Receivable & Payable
  • Payroll (either running through Quick Books or entering ADP, Paychex, or other payroll entries into the books)
  • Local and state sales tax filing
  • Monthly financial reporting
  • Online digital document storage
  • Strategic decision making based on sound financial information