What is the cause for the difference?
Depending on the cause - if the balance sheet A/r balance needs to be corrected than the entry will be
Discount Dr or Sales returns Dr or Cash/Bank(if amount already received but not recorded) Dr
A/R Cr
Yes, if that is the case- you can adjust it to the A/R aging summary.
You will record an entry to
Discount or Misc. Refunds Dr
Certified Public Accountant (CPA)
MBA, CPA