Wait until all entries are made for the month. The January reports can't be printed until all the bills - phone bill, credit cards, etc. - are received (or accrued). This is usually sometime toward the end of February.
Before printing all the monthly reports, first run the Trial balance and study it thoroughly. It's depressing to run a clean set of monthly financials and then discover that your monthly depreciation entry was overlooked.
Here are the reports we recommend you run after entries have been made for the month:
At the end of every month you may want to take some time to analyze the performance of your business. A very helpful report for this is: