1. All NM Taxes
  2. Frequently Asked Questions
  3. How often must Water Conservation Fee (H20) returns be filed?

How often must Water Conservation Fee (H20) returns be filed?

File a return for each month, quarter or semi-annual period, depending upon your required filing frequency. If no water was produced for a report period, no report is due. File the H20 return on or before the 25th of the month following the close of the report period.