Charging Interest on Past-Due Support

Wisconsin law requires us to charge 1% interest per month (12% per year) on past-due support. Interest charges begin when the past-due support equals or exceeds the amount due in one month.

Example:

  • The support order is for $300/month
  • The support amount owed is $500
  • We charge interest on the $200 ($500 - $300)

We charge interest even if the parent is paying on the debt. We do not charge interest on unpaid birth costs or fees.

The interest charged on the amount of past-due support owed to a parent is owed to that parent. The interest charged on the amount of past-due support owed to the state is owed to the state.

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Updated December 23, 2011

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