the cost of a premium plan could be worth it for the added features that you get in exchange. Do They Use a Proprietary Payment Processor or Third Party? While some invoice generators like Square ...

If your business operates on an invoicing system, you might be familiar with late payments and perhaps even nonpayment.

An interest fee is additional money you charge a client over and above the original invoice amount if they pay late. The interest rate is a percentage of the unpaid balance that accumulates every ...