Guides

Achieving Cost-Neutral Sub-Metering While Navigating the Renters' Rights Act

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February 2, 2026
Dominic Clegg

Landlords reselling energy face a delicate balancing act. On one hand, providing prepayment sub-meters solves the persistent headache of utility debt and split bills. On the other, the operational costs of running a smart metering network need to be recovered without falling foul of increasingly stringent tenant protection laws.

The good news is that Topupmeters allows landlords to keep their metering service entirely cost-neutral. By setting a carefully calculated standing charge, you can pass on only a modest, justifiable cost to the occupant while remaining fully compliant with current UK legislation.

The Regulatory Landscape

When structuring utility charges, property managers must navigate three key pieces of legislation to avoid disputes.

  • The Electricity Act and Ofgem Rules: Under Maximum Resale Price rules, landlords cannot charge tenants more for the electricity itself than what the landlord pays to the licensed energy supplier, including VAT.
  • Tenant Fees Act 2019: This act strictly prohibits landlords from charging tenants hidden administration or service fees. Permitted payments are narrowly defined to include rent and utilities. Unjustified markups to a standing charge risk being classified as prohibited fees.
  • Renters' Rights Act 2025: Sub-metering remains completely lawful, but this act introduced stronger enforcement tools, including tenant access to the Private Rented Sector Ombudsman. If your sub-meter standing charge materially exceeds the main supplier's bill, tenants or regulators may challenge the uplift as an unlawful administration fee.

Additionally, following the abolition of Section 21 evictions on 1 May 2026, non-payment of utilities is generally legally distinct from rent arrears. Utility non-payment is treated as a contractual dispute rather than a mandatory ground for possession, unless utility costs are explicitly defined as rent within your tenancy agreement.

Calculating a Cost-Neutral Standing Charge

The standing charge is collected by the meter specifically for your benefit to recover fixed operational costs; it is not revenue taken by Topupmeters. To keep the system cost-neutral, landlords can configure the daily standing charge to cover four specific elements:

  • Supplier standing charge: Divide the daily standing charge from your primary energy supplier by the number of sub-meters in the property.
  • Metering subscription fees: The Topupmeters annual subscription is £56.00 plus VAT per year, per meter. This breaks down to a highly modest 18.41p per day.
  • Transaction fees: Based on typical top-up activity, we recommend adding an additional 6.00p per day to cover Stripe processing fees.
  • Payment administration fees: If you receive revenue payments directly through Stripe Connect, you can disregard this step. Otherwise, a payment admin fee of £3.00 plus VAT is charged once per monthly payout. This equates to 11.3p per day, which should be split evenly across all meters paid into that specific bank account.

A Practical Example

Consider a property with three Topupmeters sharing one main supply, all paying into a single bank account:

  • Main supplier standing charge: Let us assume the main bill is 67.0p per day. Divided by 3 meters, this equals 22.33p per day.
  • Topupmeters subscription: 18.41p per day.
  • Estimated Stripe transaction fees: 6.00p per day.
  • Shared payment admin fee: 11.3p divided by 3 meters equals 3.76p per day.
  • Total calculated standing charge: 50.50p per day.

This setup safely recovers all operational costs, costing the occupant just over 50p a day while fully funding the smart meter infrastructure.

Full Control via the Landlord Gateway

Wholesale energy prices and supplier standing charges fluctuate, which means your sub-meter pricing needs to be agile. From the Topupmeters Landlord Gateway management portal, you have full control over adjusting these tariffs.

You can update the standing charge and unit rates across your entire portfolio or on a per-meter basis remotely. This ensures you never fall into a deficit if your primary supplier raises their rates. Conversely, for certain use cases such as caravan parks or EV chargers, you can use the portal to set the standing charge to zero, preventing debt from accumulating on the meter during periods when the service is not actively in use.

Incorporating Other Utility Costs

Some landlords use the meter's standing charge to recover other fixed costs explicitly outlined in the tenancy agreement, such as water, broadband, or historical debt.

While this approach consolidates debt recovery, it requires a clear agreement between landlord and tenant. The tenant must understand exactly what the standing charge covers. Be aware that rolling other services into the energy standing charge does increase your regulatory risk under recent housing legislation, making transparent billing records essential.

Best Practices for Landlords

To maintain a cost-neutral service while minimizing the risk of regulatory disputes, we recommend the following compliance practices:

  • Align tariffs closely with your main supplier bills, ensuring any uplift accurately reflects the Topupmeters subscription and transaction costs.
  • Detail the exact sub-metering arrangements and utility responsibilities clearly within your tenancy agreements.
  • Maintain transparent billing records that show tenants exactly how their standing charge is calculated.
  • Regularly review your tariffs via the Landlord Gateway to ensure they match your current primary supply costs.