Quickbooks support Bitcoin, Ether, Litecoin, etc but not Steem.
If you use Quickbooks - can you message them through the feedback section (click on the gear cog to find it) and ask that they add Steem support.
If we want Steem to be used by business to make and accept payments we need basic infrastructure in place like accounting systems like Quickbooks supporting it.
Also it would be good to ask them to allow us to add our own custom currency/token to handle the tokens set up on Steem Engine etc.
Thanks in advance