The short answer
To cancel an energy supplier contract: (1) send written notice to the supplier with your name, account #, and intended cancellation date, (2) the supplier transmits EDI 814 to your utility within 24 hours, (3) the utility processes the change at the next meter read (30-45 days), (4) any ETF appears on your final invoice. Time cancellation 30-45 days before your next billing cycle for a clean transition.
Cancelling an energy supplier contract is straightforward when you know the workflow: written notice to the supplier, EDI 814 reverse handshake to the utility, return to the utility default rate (or the new supplier you are switching to), and ETF reconciliation if you cancel mid-term. The mechanics are the same in every deregulated US state; only the timing and ETF amount vary by contract. This guide walks the 4-step cancellation workflow.
Step 1 — Send written cancellation notice
Cancellation must be in writing. Email or portal message to the supplier customer service address. Include: name, account number, contract end-date intent (specific date or "next billing cycle"), and reason if relevant.
Phone calls do not create a record. Even if the agent confirms verbally, follow up with a written message in the same hour. The written record is your protection if the cancellation is later disputed.
Some suppliers require a specific cancellation form. Check the contract for this clause. If a form is required, fill it out and email back.
Step 2 — EDI 814 reverse handshake
Once the supplier processes your cancellation, they submit an EDI 814 message to your utility. This message removes them as supplier-of-record. The utility processes the change at the next regular meter read.
If you are switching to a new supplier (not returning to default), the new supplier submits its own EDI 814 simultaneously. The utility queues both and processes them in order at the next meter read — old supplier removed, new supplier added.
If you are returning to the utility default rate (no new supplier), the utility automatically becomes your supplier of record at the next meter read. No action needed.
Steps 3-4 — Timing + ETF reconciliation
Send cancellation notice 30-45 days before the date you want service to switch. This gives time for the supplier to process, EDI 814 to transmit, utility to receive, and the next meter read to occur. If you cancel too late (less than 15 days before next meter read), the change may not process until the meter read after that.
If you cancel mid-term and the contract has an ETF, the supplier bills the ETF on the final invoice. ETFs are typically $50-$300 residential or $0.02-$0.04/kWh × remaining usage commercial. The early-termination-fee-explained guide walks the math.
If you are inside the cooling-off window (3-10 business days post-signing depending on state), the ETF is waived. The cooling-off-period-energy-supplier-rights guide walks the rule.
Infographic
EDI 814 cancellation flow — same handshake, reverse direction
Recap
Bottom line
Cancelling an energy supplier contract is a 4-step workflow that takes 30 to 45 days end-to-end: written notice to the supplier, EDI 814 reverse handshake to the utility, transition at next meter read, and ETF reconciliation if applicable. The mechanics are the same in every deregulated state.
For households cancelling within the cooling-off window (3 to 10 business days post-signing), the ETF is waived. For mid-term cancellation, the ETF math (the early-termination-fee-explained guide) decides whether to pay or wait. For pre-renewal cancellation, time the notice 30 to 60 days before contract end so you have a clean transition to default service or a new supplier.
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