Our opinion is that money is better spent on other things like servers or advertising.
Buy Quickbooks. Buy the Quickbooks payroll service. Don't F around. I don't like Quickbooks and I don't like Intuit. I am a tax lawyer so in theory I could do all this stuff myself. I use nothing but Macs. Yet, I have a Windows machine with Quickbooks/Windows on it. I use that to run my business.
Pay whatever it takes. Give the whole problem to the outside payroll service. You're talking a few hundred bucks a year. You'll lose that in productivity and future value of your company the very first time you have to touch a payroll tax question.
Spend your money to buy yourself TIME. Servers and other techie things are just noise. The value you create comes from your time and attention, focused on your business.
That said, I have a different question. Based on your payroll frequency, it seems that you might only be paying yourselves. If that's the case, have you considered NO payroll, and just dividend distribution? You seriously need to get an accountant if you haven't. Let me give you an example: You can payroll yourself somewhere around 10 to 15k per year and end up getting earned income credits that you don't get if you make too little or too much. The money you're trying to save in payroll fees is nothing compared to the thousands you could get back. Dividends can be used exclusively, or as partial, depending on your strategy.
Never go without a good accountant and a good lawyer!
I appreciate the feedback and I do agree that time is more important than money. But money is also important when you're "ramen profitable".