I do my own payroll. I have an excel program to calculate Medicare, SS, Fed W/H, etc. At the end of each month, I give payslips to accountant, and they figure up my 942 tax burden. I like to say tax burden...
I also give (each month) - bank statements, check registar, list of 'checks recieved' from each job, reciepts from purchases. Then accountant plugs into (quickbooks?) program and prints me out the details - gross, net, expense breakdown, etc. I have a nice folder for each year showing profit/loss, etc. All looks tight.
For this service, I pay $210 per month. End of year big tax (biz and personal) is a thousand bucks.
Accountant also manages all vehicle depreciation, etc. I can call him and get odd advice and other small favors. For this small extras, I trim his fruit trees. Keep it simple. He has got my back.
p.s. - don't tell these guys about cash (bad word). they do not need to know about it, give it to your wife - she will make it disappear.