It is mostly based on survey responses. You literally have to beg the customers to complete the survey and rate you high. If not, you will not have a job next tax season. Your knowledge and credentials simply do not matter after the initial hiring.
Help answer questions real people are asking about your company. Your answers will be 100% anonymous.
The person asking the question will be notified of your answer, and it will be posted publicly. Your identity will be kept private