No, a dormancy fee cannot take an account negative. The fee process goes through the priority suffixes listed in Tool #346 Dormancy/Escheat Configuration to take the fee from the account suffixes. If any account is at a zero balance, the fee will not draw the account below zero, but instead move to the next account. If the final account cannot cover the fee, the fee will appear on the Daily Dormant Fee Exception Listing Report (TDRMNT).
When the membership no longer has funds in any of the sub accounts, your credit union can close the membership using Tool #22 Close Memberships/Accounts. Follow your credit union policies and procedures. (See directions below.)