You can apply to be a member of the Quickbooks Affiliate Program in the CJ Affiliate Network. Quickbooks pay per action as well as a small commission program. See Details in CJ Affiliate.
Gusto Affiliate Program
Gusto has a generous affiliate program that pays per lead and per sale.
ZarMoney Affiliate Program
Earn up to $120 per sale when you refer a qualifying customer to ZarMoney.