When hiring online bookkeeping services, prioritize expertise, software compatibility, and robust security measures. Ensure flexibility in service options, effective communication, and transparent pricing. Research client reviews for reputation assessment, and consider scalability, compliance, and service level agreements to align with your business needs and regulatory requirements. 1)Expertise and Experience 2)Software Compatibility 3)Security Measures 4)Service Flexibility 5)Communication and Support 6)Cost Structure 7)Client Reviews and Reputation 8)Scalability 9)Compliance and Regulations 10)Service Level Agreements