Taking Discounts when not making payments every day

 Does anyone know how it capture discounts on invocies that are not actually due on the pay thru date.

Example.

We pay thur a TUE & next check run is Friday.  I only get discounts on invoices that are actually due on that day Tuesday . On my tuesday check run I loose discounts for invoices that would be discounted on Sat/Sun/Monday. as they are past the discount date.

On the Friday check run I loose discounts for invoices with discount date of Wed or Thru.

I know i could extend the pay thur date but then you get all the invocies that would be due during that period which would in then pay those early.  I do not want to pay NET 30 invoices early but I would be billing to pay discounted invoices 2 -3 day early to get the discount.