AccuPay Systems (AccuPay, Inc. dba AccuPay Systems) is an Independent, full-service payroll and HR service bureau in Temecula, CA, powered by iSolved HCM. Originally founded in 1978 by CCH (now Wolters Kluwer); acquired and merged with Felix Mwania’s Smart Accountancy (founded Jan 2006) when longtime owners retired; relocated from Huntington Beach to Temecula in 2016.