Who We Are - (905) 967-4005


Here at Preferred Bookkeeping Service we are dedicated to providing you and your business confidentiality and reliability while offering convenience and peace of mind that you are in good hands!

Our company was established in 2000, our unparalleled service, competitive prices and overall value are why our customers keep returning and referring us more business!

About the Owner

Patty Letterio is the Owner and Operator of Preferred Bookkeeping Service. Patty has over 20 years experience in the financial industry. She successfully accomplished her Accounting Diploma in the year 2000. Patty's professional, dedicated and friendly demeanor have helped grow her home-office based business to what it is today.

Patty Letterio has experience in several industries including Construction, Retail, Automotive, Manufacturing and Distribution. She is proficient in many computer programs such as Quickbooks (Desktop & Online), Simply Accounting, Microsoft office & Excel, ACCPAC Plus (for window and DOS).

5 Reasons why bookkeeping can benefit your business

  1. Complete and organized records can help identify the sources of income
  2. Complete and organized records can mean tax savings
  3. Complete and organized records can prevent most of the problems if the business is selected for audit
  4. Good records keep the owners better informed about the financial position of their businesses
  5. Complete and organized records may help businesses get loans from the bank and other creditors