Tax & Accounting Simplified – 100% Online

Tax Preparation, Bookkeeping & more

Kosmos is an online accounting firm based in Southern Ontario. Our primary services are tax accounting (including bookkeeping), business incorporation and accounting software implementation, as well as forensic accounting and investigation.

While Kosmos serves a wide range of clients across Ontario and Canada, we specialize in sectors or groups underserved by traditional accounting firms. This includes:

-Home businesses (consultants, artists etc.)

-Local service businesses

-Sole proprietorships and side businesses

-Ecommerce Stores (online shops, Shopify stores, Amazon and Ebay merchants)

-New economy businesses and entrepreneurs (Uber, Airbnb etc.)

-Sensitive industries (cannabis, sex/adult)

Kosmos understand that each business is different and we strive at providing suitable services for improving record keeping, reducing taxes, and meeting the CRA and provincial/federal compliance requirements.

Our company’s cornerstones are integrity, confidentiality and simplicity. We make it easier for our clients to work with us while ensuring the utmost security and protection for their information and businesses.

One Stop Solutions For All Accounting Services

Our Services


Tax Preparation

Personal and Corporate tax preparations services in Canada. 100% Online delivery and support.


Bookkeeping & Payroll

Flexible & cost-effective bookkeeping and payroll services for Canadian small businesses


Implementation Services

Accounting, Payroll and HR software implementation services for businesses of all sizes.


Fraud Investigations

Fraud, corruption and embezzlement investigation, Financial forensics, Financial statement audit

Accounting Software Partners

Latest Blog

Quickbooks Online cleanup in Toronto

If you are using Quickbooks Online and your books have become messy, you may be in need of a Quickbooks clean up service. Kosmos Accounting’s accountants have years of experience with Quickbooks Online and can help update your chart of accounts, create new processes and workflows, and provide specific advice which will help increase your… View Article

Kosmos Accounting now an authorized Zoho Books Advisor

Kosmos Accounting is happy to announce that it has signed a partnership with Zoho Corporation to become an authorized partner for Zoho Books in Canada. While we already offer to our customers other cloud accounting solutions such as Quickbooks Online or Sage Business Cloud, Zoho Books has unique features such as a very intuitive user… View Article

Temporary Accounting Staffing in Toronto and the GTA – from $25/hour

Kosmos Accounting has been expanding its temporary staffing solutions over the last few months. Using temp workers provides a flexible option for companies of all sizes to increase their workforce for a short period. It provides immediate access to qualified and vetted employees, while avoiding the costs and time for administrative compliance and payroll management…. View Article