Domestic energy customer credit balances, July 2025 to June 2026

Main points 

• The 12-month rolling average of total customer credit balances increased to £3.3 billion in the year ending June 2026, up £100 million compared with the year ending March 2026.  
• Over the same period the rolling average household credit balance rose to £200, an increase of £1 compared with the year ending March 2026. 
• At the end of June 2026, the total market-wide customer credit balance was £2.9 billion, an increase of £200 million compared with June 2025. 
• The average household credit balance at the end of June 2026 was £182, up £4 from £178 in June 2025. 
• These increases are consistent with seasonal trends as household energy use usually falls during the summer months, allowing credit balances to increase. 

Things you need to know 

This data represents approximately 16 million households who pay for their energy by fixed Direct Debit and hold a credit balance. All figures are net of unbilled consumption. 

The 12-month rolling average removes seasonal fluctuations in energy consumption and credit balances, providing a clearer view of the underlying trend over time rather than movements in any single month. 

Energy suppliers’ customer credit balances are an important part of the retail energy market. Details about how energy suppliers should treat customer credit balances are included in the rules in energy licences that set out consumer standards and what suppliers must do to stay financially stable. 

The amount of credit that is held in energy accounts goes up and down during the year. Accounts will have more credit in them during the summer but then more is spent in the winter as more energy is used. Each household may have different experiences with how much credit they have on their balance at different times of the year. However, this is the trend that is seen across the energy sector. 

Data are for live domestic customers energy accounts that are held by people who pay for their gas and electricity by fixed Direct Debit and have paid for the energy they use.   

The data is only for households whose energy account was in credit on the last day to each quarter from July 2025 to June 2026. 

Get data 

Get all the live energy domestic customer credit balances data in the retail market indicators data on our data portal.  

Methodology 

We have removed the amount of energy that has been used but not yet been paid for from the data, as well as any credit held by closed accounts, and those on non-domestic tariffs. 

By including the quarterly figure alongside the yearly average, we show how households use their balances to keep how much they pay the same throughout the year. 

Further information 

This data is published at the end of March, June, September and December each year.