The Payroll Source Book
FYI and IMO, , anyone who does payroll at more then a basic level should get a copy of this book and READ IT. I was fortunate at my last real job to go to work for a large software company. My predecessor had messed up badly enough that I had a very free hand my first year. One of the things I did was buy a copy of The Payroll Source Book for each payroll staffer and we spent one hour twice a month training up using examples from the book. Anyone in charge of payroll should know this book cold.