Suburban street in Ridleyton, Adelaide, Australia, with palm trees, residential houses, and Stobie utility poles carrying overhead power lines.
Ridleyton’s quiet streets, lined with iconic Stobie poles, hint at the unseen networks that keep homes powered — and the quiet cost of not checking if your plan is still the best one. Photo: Roo72 /Wikimedia Commons (CC-BY-SA-3.0)

Energy Bills to Expose Hidden $317 ‘Loyalty Penalty’ Starting 2026 Under New AEMC Rule

September 11, 2025
2 mins read

Australians will soon spot something new on their power bills – a message showing if cheaper plans exist with their current provider. The Australian Energy Market Commission (AEMC) has approved a rule requiring retailers to display “better offer” information prominently in bill communications, with parts commencing July 1, 2026, and hardship protections starting December 30, 2026.

Many customers don’t know they’re paying extra just by staying loyal. ACCC data shows disengaged customers, particularly those on legacy plans, often pay significantly more than those on newer offers.

For flat-rate plans older than two years, this jumps to 16.9% more – roughly $317 extra each year.

“This final rule is like placing important price information on the shopfront, making it clear, up-front and hard to miss,” AEMC Chair Anna Collyer explained when announcing the change.

The key improvement is visibility. Currently, better offer information might be buried in PDFs you never open. Under the new rule, retailers must present the message in cover emails, bill summaries and on first-page bill content as required by AER guidelines.

Retailers must compare your current plan against others they offer based on your actual usage data. This matters especially for homes with solar panels or time-of-use tariffs, where a simple price comparison might be misleading.

Comparisons must use historical usage; solar exports and complex TOU structures affect calculations and are treated carefully in the guidelines.

You won’t see better offer messages on bills covering multiple sites or if you’re already on the retailer’s best available offer.

People on hardship programs get additional protection. AEMC rules strengthen protections so retailers must ensure hardship customers are no worse off than the retailer’s deemed better offer and must proactively assist them.

Energy retailers have expressed mixed reactions. Some industry stakeholders have raised concerns about implementation costs, though specific submissions are not detailed in available sources.

The rule comes with enforcement powers – the AER enforces compliance under the existing penalty framework, which can include infringement notices and civil penalties for retailers who fail to present better offer information correctly.

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What You Can Do Today:

  1. Check your plan age – if it’s over 12 months old, you’re likely paying too much
  2. Visit Energy Made Easy to compare offers based on your actual usage
  3. Watch for conditional discounts that expire after a “benefit period”
  4. For solar or complex tariffs, ensure comparisons use your specific usage pattern
  5. Call your provider and directly ask: “Am I on your best available offer for my usage?”

Not everyone has easy email access or digital literacy skills. The AEMC acknowledges this gap, noting paper bills will need clear messaging and some customers may require additional support.

Research from the Department of Prime Minister and Cabinet shows clear messaging with direct action prompts significantly increases switching rates.

DMO and market offer changes have varied by state and over time. For precise state information, check the AER’s DMO determinations and ACCC market monitoring for your specific region.

The AEMC rule is now final, but the AER must develop detailed guidance on presentation requirements. This consultation process is underway.The rule requires retailers to display better-offer messaging in communications that accompany bills; the AER will issue guidance on presentation; ACCC data shows customers on older offers pay more; industry submissions note practical concerns.

Sunita Somvanshi

With over two decades of dedicated service in the state environmental ministry, this seasoned professional has cultivated a discerning perspective on the intricate interplay between environmental considerations and diverse industries. Sunita is armed with a keen eye for pivotal details, her extensive experience uniquely positions her to offer insightful commentary on topics ranging from business sustainability and global trade's environmental impact to fostering partnerships, optimizing freight and transport for ecological efficiency, and delving into the realms of thermal management, logistics, carbon credits, and energy transition. Through her writing, she not only imparts valuable knowledge but also provides a nuanced understanding of how businesses can harmonize with environmental imperatives, making her a crucial voice in the discourse on sustainable practices and the future of industry.

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