Ideally, yes. Not offering pluses to early payers would be the better choice since they’re supposed to be on time anyways.But the thing is… People forget stuff. They face unexpected situations, and most of the time they simply forget about the payment or don’t pay it enough attention.In my case, I’ve found most of my clients who tend to be late is because they had their hands full with something else altogether. So sometimes I help them remember by making it as easy as possible to pay. This way they keep it in their minds for longer.Granted, most of the time it’s not a material reward– it could be a small extra such as a little bit of advice, or providing them with a useful resource. But the effects are noticeable, and if pitched properly they tend to see it as great service.