No only Sage 50 2014 & 2015 work on window 8. 

Since First accounting is no longer available, you will need to move to Sage 50.  You can purchase this in 3 different ways.  BASIC- Support  has 3 calls to Sage, You own the software,  TRADITIONAL-  You own the software and it has unlimited support,  SUBSCTIPTION- you lease the software. Note if you stop paying, it stops working.

Shirley Byard,

Sage 50 Partner and Solution Reseller

Many thanks, Shirley!

Leo