The guide, which is available through government website Business Link, provides businesses with impartial advice to help them select the most appropriate and best value-for-money system.
All users have to do is answer a short questionnaire to identify the main uses for IT within their business and they will then be recommended a system which best demonstrates long-term value for money.
Business Link's Jonathan Hollow said: "Setting up IT systems can be daunting. This tool provides impartial advice to businesses, highlighting the best options. This in turn enables the business owner to be confident when speaking to IT suppliers."
Visit www.businesslink.gov.uk or call 0845 6009006 for more information.