What are the pros and cons of Outsourcing bookkeeping

By outsourcing assume you mean having a local accounting firm or accountant to enter into business transactions instead of hiring someone part time to keep their books.  

The advantages are 

That the external service provider uses its own equipment and office supplies to make your job so you do not have to provide it. Moreover, in general, get someone with more experience and even though you pay more per hour, can work more efficiently because they know what they are doing. Then when you go to an accountant for your tax return, is clean and tidy so that the counter does not charge the same. A part-time employee can cost more per hour.

Cons

But then you have to deal with the quarterly reports of payroll, employment taxes and workers compensation.