More than nine million households across the United Kingdom face an urgent deadline to provide meter readings to their energy suppliers ahead of next week's price cap adjustment.
Those on standard variable tariffs who lack smart meters must act before April 1 or risk being charged at inflated rates, according to Uswitch.
The deadline falls on National Meter Read Day, which aligns with Ofgem's biannual update to the energy price cap.
This year's adjustment represents the most significant reduction in years, making it particularly important for consumers to ensure their bills accurately reflect actual usage rather than supplier estimates.
Britons need to 'submit an accurate smart meter reading' before a looming deadline
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From April 1 2026, typical dual-fuel annual bills will fall from £1,758 to £1,641, representing a seven percent decrease worth £117, Ofgem has confirmed.
The reduction stems from two key factors: the Government's decision to absorb green levies, which alone delivers £150 in annual savings, alongside declining wholesale energy costs.
Consumer advocates warn that households failing to provide accurate readings before the changeover could find themselves paying estimated rates based on the previous, more expensive pricing period.
Both Uswitch and Money Saving Expert have highlighted that suppliers rely on estimates when actual meter data is unavailable, creating bills that may not match genuine consumption patterns.
Ofgem price cap is projected to drop in April | GETTY LATEST DEVELOPMENTS
Rising energy bills are putting further pressure on businesses | PAShay Ramani, home energy expert and spokesperson for Free Price Compare, explains: "Many households don't realise that failing to submit an accurate meter reading before the price cap changes can result in estimated bills.
"Your supplier may assume you used more energy during the higher-rate period than you actually did, meaning you could end up paying over the odds even as prices fall."
This issue becomes especially problematic when the gap between old and new rates is substantial.
Households wishing to avoid overcharging should locate their gas and electricity meters, record the displayed figures, and submit these to their supplier before midnight on March 31.
Thousands of households use smart meters | PAThe process typically takes only minutes and can be completed via supplier websites, mobile applications, or telephone customer service lines.
Consumer groups recommend keeping a copy of both the reading and any submission confirmation to resolve potential billing disputes.
Those with functioning smart meters need not take any action, as their usage data is transmitted automatically to energy providers.
Submitting accurate readings remains the simplest method for consumers to benefit fully from the forthcoming price cap reduction.
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