Reference data ยท Refund periods

How far back Arizona utilities refund overcharges

Bills are corrected back to the date the error can be definitely fixed, and overbilling is refunded within the next billing cycle. Here is the rule behind it, what starts or limits the clock, and what it means for a business with a billing error in Arizona.

Arizona at a glance

Arizona
RuleAriz. Admin. Code R14-2-210(E) (electric; gas rules in R14-2-310)
How far back refunds goBills are corrected back to the date the error can be definitely fixed, and overbilling is refunded within the next billing cycle
What starts or limits the clockThe six-month cap on back-billing non-residential customers expressly does not apply to overbillings
InterestNot stated in the rule
RegulatorArizona utility commission

What it means for a refund claim in Arizona

  • Arizona caps what a utility can back-bill a business at six months, but sets no such cap on refunds.
  • The meter-correction rule applies when a tested meter is more than 3% fast or slow; evidence of when the error began sets the refund.
  • Read the utility's tariff rules on billing and meter error too: tariffs often repeat or extend the commission rule.
  • Municipal utilities and cooperatives usually set their own billing rules.

Discovery Energy reviews 36 to 48 months of history on every account and pursues the longest period each jurisdiction allows. See how overcharge recovery works, or compare Arizona with every other state.

Sources

Frequently asked questions

How far back do Arizona utilities refund billing overcharges?

Bills are corrected back to the date the error can be definitely fixed, and overbilling is refunded within the next billing cycle.

What limits the refund period in Arizona?

The six-month cap on back-billing non-residential customers expressly does not apply to overbillings.

Do Arizona utility refunds include interest?

Not stated in the rule.

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