I have always charged my clients by the hour, which is pretty standard, and as far as I'm concerned the easiest way to go. I came across this
video of a conference where the speaker says it is more profitable for bookkeepers to charge by the transaction than by the hour. His method consists of charging $.50/transaction plus $100.00 "to pull it all together". So basically while your interviewing the client you ask them how many transactions they have and if they say 100 you would charge them $150.00/mo.
I have a few of issues with this:
1 - I have NEVER had a client accurately estimate their monthly transactions and I'm afraid of bidding a job based on their estimate and then having to either live with the consequences or go back and tell them I need to increase their rates
2 - I tend to get clients that have to be babysat (time-wasters) which includes time on the phone and emailing to gather information or I have some that are local that includes travel time and meetings (I have one who is a talker and can turn what should be a 30 minute meeting into 4 hours, which I bill for)
3 - Trying to keep count of transaction entered seems like it would take more time than it is worth. You can look up transaction totals in QuickBooks, but I don't know what "it" considers a transaction so therefore can't vouch for accuracy (or the accuracy of any sub who might be counting their transactions)
So, fellow bookkeepers, I know most of you charge by the hour as well... What is your take on this?
*The video is from Universal Accounting which offers a Professional Bookkeeping certification and this is how they train their students to do their billing.