Charging Interest on Past-Due Support

Wisconsin law requires interest charges of .5 % per month (6 % per year) on past-due support. Effective April 1, 2014, interest charged on past-due support changed from 1% per month (12% per year) to .5% per month (6% per year). 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
  • Interest will be charged on $200 ($500 - $300)

Interest is charged even if the parent is paying on the debt. It is not charged on unpaid birth costs or fees.

When interest is charged on past-due support owed to a parent, that interest is owed to the parent. When interest is charged on past-due support owed to the state, that interest is owed to the state.

More Information on Enforcing Child Support Orders


Updated April 04, 2014

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