Does your group have an audit or financial double check planned for the end of the year?

You definitely should, and it doesn't have to be a ridiculous amount of work -- and it shouldn't be testy at all. Your treasurer should be the first person insisting on this as part of just good sound financial management. An audit is not at all an implication that you don't trust someone.

Here are some resources to get you started:

And finally, this whole process would be even easier, way easier, if your group used ourFinance Manager online software program for tracking your funds. You should check it out.