Catch every overcharge

Bill Validation

Etainabl's bill validation engine automatically checks every energy invoice against your contracted rates, meter data, and tariff structure — so you recover money you're owed without lifting a finger.

At a glance

Why Bill Validation matters

Suppliers get it wrong more often than you'd think. Etainabl checks every line on every invoice the moment it lands, so overcharges surface immediately — and the money comes back to you, not the supplier.

Every invoice that arrives — fetched from a supplier portal, forwarded by email, or uploaded by hand — is read automatically and run through Etainabl's validation engine before anyone has to look at it.

AI-powered capture

There are no per-supplier templates to maintain. Etainabl uses LLM-powered extraction to read any invoice format — single- or multi-meter, credit notes, awkward scanned PDFs — and pull out every rate, read and charge. Invoices are even retrieved for you automatically from 20+ UK energy and water supplier portals.

40+ validation rules, per meter

Each invoice is checked against 40+ configurable rules, applied to every meter on the bill:

  • Contract rates — every unit rate, standing charge and capacity charge matched to your contract, within tolerance
  • VAT & CCL — correct VAT rate and reduced-rate de minimis, and CCL checked against HMRC published rates and your chargeable percentage
  • Consumption — billed usage cross-checked against half-hourly settlement data, meter reads and previous periods
  • Reads — read continuity across consecutive bills, with estimated reads flagged
  • Gas conversion — kWh recalculated from reads, calorific value and correction factor
  • Duplicates — caught by invoice number and by overlapping billing period
  • Account match — every MPAN, MPRN or SPID matched to the right meter
  • Passthrough charges — DUoS, TNUoS, BSUoS and other regulated charges surfaced for visibility

Every rule is configurable per company — switch checks on or off, set them to warn or fail, and tune the tolerances to suit your portfolio.

A clear validation queue

Results land in a validation queue marked passed, warning or failed, each with the evidence behind the verdict and a full history of any edits. Invoices you trust can be auto-validated straight through, so your team only spends time on the bills that genuinely need a human eye.

See Bill Validation on your own data

Book a 30-minute demo and we'll walk through exactly how this works for a portfolio like yours.