Prepayment Meters UK 2026: Costs, Pros and How to Switch

Prepayment meters can cost more than direct debit — here's exactly how much, when they make sense, and how to switch to a credit meter for free in 2026.

What is a prepayment meter?

A prepayment, or 'pay-as-you-go', meter fundamentally changes how you pay for your household energy. Instead of receiving a bill after consuming electricity and gas, these meters require you to pay for your energy before you use it. This "pay-as-you-go" model operates much like a mobile phone top-up. Consumers typically add credit to their meter using a reusable key or card at local shops (convenience stores, post offices, some supermarkets) or, increasingly, through dedicated mobile apps or online portals.

In 2026, prepayment meters remain a significant fixture in the UK energy landscape. While precise figures fluctuate, estimates suggest that around 4 million UK households continue to utilise them, representing a substantial portion of the population. These meters were historically common for residents with historical energy debt or those in temporary accommodation, but their distribution has broadened over time. Modern smart meters can often operate in both prepayment and credit modes, adding a layer of flexibility that older mechanical meters lacked.

Are they more expensive in 2026? A Deep Dive into Costs

The question of whether prepayment meters are more expensive has long been a contentious issue, a source of significant concern for consumer advocates, and a focus of regulatory intervention. For much of their history, prepayment customers faced a "prepayment premium," meaning unit rates for electricity and gas were notably higher than those offered to direct debit customers. This disparity was largely due to the higher administrative costs associated with managing top-up systems, debt recovery (should emergency credit be used and not repaid), and the physical infrastructure required for topping up.

However, significant changes were introduced by the energy regulator Ofgem. Since the start of 2024, Ofgem has mandated that the unit rates for prepayment meters under the price cap are now levelled with direct debit tariffs. This was a landmark move aimed at eradicating the historical "poverty premium" and offering a fairer deal to prepayment customers.

So, on paper, per kWh, you pay the same under the price cap. Let's break down what this means:

Ofgem Price Cap (1 October to 31 December 2026): The cap sets average Direct Debit unit rates of 26.32p/kWh for electricity and 7.97p/kWh for gas. Prepayment unit rates are set alongside them and are now close to Direct Debit rates, after Ofgem removed the extra charges prepayment customers used to pay. For comparison, in October–December 2023 the Direct Debit cap was 27.35p/kWh for electricity and 6.89p/kWh for gas.

Fixed Daily Standing Charge: This charge, levied daily regardless of energy consumption, also applies equally to both payment methods under the price cap. From 1 October to 31 December 2026, the average Direct Debit standing charges are 54.83p/day for electricity and 29.68p/day for gas. Prepayment standing charges are now aligned with Direct Debit under the cap.

TABLE: Ofgem Price Cap Rates, 1 October to 31 December 2026 (GB average, Direct Debit)

| Charge Type | Unit | Direct Debit (Price Cap) | | :--------------------------- | :------ | :----------------------- | | Electricity unit rate | per kWh | 26.32p | | Electricity standing charge | per day | 54.83p | | Gas unit rate | per kWh | 7.97p | | Gas standing charge | per day | 29.68p |

Note: Ofgem publishes prepayment cap rates separately; they are close to these. Rates vary by region, so check Ofgem's price cap page for your area. The cap changes every quarter.