Historical Bill Audit

Billing errors that were paid in past years can often still be recovered. Nectar reviews up to 36 months of past bills, or longer where a utility accepts claims, for errors, refunds, credits, rate savings, and tax exemptions, and pursues the recoveries you approve.

Nectar historical bill audit — automated utility data management screenshot

Bills that were paid in prior years can still contain errors: a rate schedule that did not match the account, a meter read that was estimated and then never trued up, a duplicate charge, a late fee on an account that was already closed, or sales tax on a site that qualifies for an exemption. Those dollars stay with the utility unless someone re-reads the bills and files the claim while the utility will still accept it.

Nectar reviews up to 36 months of past bills, or longer where a utility accepts older claims. Every bill is parsed again at the line-item level. A recovery is counted only when the refund, credit, or correction is received or applied, and each one is listed with the source bills, the baseline, the calculation, and the assumptions.

Challenge

Overcharges paid in prior years are never revisited.

Solution

Nectar re-parses past bills at the line-item level and checks them for misapplied rate schedules and riders, meter and read errors, duplicate and post-closing charges, and late fees and interest.

Challenge

Tax-exempt sites often pay sales and utility taxes anyway.

Solution

Each account is checked for tax treatment against its site and use, and Nectar files for refunds and corrects the exemption going forward where the site qualifies.

Challenge

Audit firms report findings without showing the math.

Solution

A recovery counts only once the refund, credit, or correction is received or applied. Every recovery is listed in a savings report with its source bills, baseline, calculation, and assumptions.

What the review looks for

The re-parse separates demand, energy, delivery, taxes, and fees, then checks them against the account’s history and the rate schedule it should have been on. Misapplied riders, estimated reads that were never corrected, charges after a closing date, and duplicate line items are flagged with the bill image attached.

Tax treatment is checked against the site and how the energy is used. Where a manufacturing, nonprofit, or other exempt site has been paying sales or utility tax, Nectar files for the refund and corrects the exemption going forward so the next bill is not wrong in the same way.

A recovery you can hand to finance

Findings are not a list of possible issues. A line enters the savings report when the refund, credit, or corrected bill is in hand. The report names the account, the months, the source documents, and how the amount was calculated, so finance can book it and an auditor can follow it back to the PDF.

The same validated history is what rate optimization and demand management use afterward. An error that has already been recovered is not presented again as a forward-looking saving.

One platform for every utility decision

Utility bill management, energy cost management and procurement, and sustainability reporting in one system, shared by energy, finance, operations, and sustainability teams.

Nectar utility bill management — utility data management feature

Utility bill management

Every bill for every utility, waste, and telecom account collected, parsed at the line-item level, and tracked against its expected date.

Automated bill collectionData completenessAudit trailAI agent and smart reports
Nectar sustainability reporting and benchmarks — utility data management feature

Sustainability reporting and benchmarks

Audit-ready data for ESG reporting, site benchmarks, ENERGY STAR sync, and exports to carbon accounting platforms.

BenchmarksENERGY STAR Portfolio ManagerESG and carbon integrationsWaste and recycling
Nectar bill audit, bill pay, and ap — utility data management feature

Bill audit, bill pay, and AP

Errors caught before payment, past overcharges recovered, and validated bills paid on time or delivered to your AP system.

Utility bill auditsHistorical bill auditUtility bill paymentsAP and ERP integration
Nectar energy cost management and procurement — utility data management feature

Energy cost management and procurement

Tariff and rate optimization, demand management, and procurement advisory. Customers typically save 3 to 5% of annual utility spend.

Tariff and rate optimizationDemand managementProcurement advisoryBudgeting and forecasts

Loved by customers in every industry

Customer Stories
Featured

How Thomas Foods automated more than 90% of its utility data collection

Thomas Foods International uses Nectar to collect and organize utility data across its US facilities, replacing manual bill downloads and spreadsheet entry.

“Using Nectar has significantly streamlined the process of gathering and analyzing our utility data. The platform just works!”
Jonathan R., Sustainability Director at Thomas Foods Int., USA — Nectar customer

Jonathan R.

Sustainability Director, Thomas Foods Int., USA

Read the case studyFeatured

Stanwich Energy Boosts Client Value with Nectar's Utility Data Solution

Stanwich Energy announces a new partnership with Nectar to enhance the customer experience through advanced, AI-powered utility data services.

“Partnering with Nectar's AI-driven platform has been groundbreaking, allowing us to tackle changes faster and skip the outdated, painful integration required by other solutions. Having the right information is the first step, and Nectar is exactly what we have been looking for to make that happen.”
Matt Shaw, Managing Director at Stanwich Energy — Nectar customer

Matt Shaw

Managing Director, Stanwich Energy

Read the case study
Jeremy Pike, Sustainability Leader at Idaho Milk Products — Nectar customer

Jeremy Pike

Sustainability Leader, Idaho Milk Products

“Thanks to Nectar's innovative solution, we can accurately assess our environmental impact, becoming a pioneer in sustainability among our peers.”

John O'Connell, CEO and Founder at Stanwich Energy — Nectar customer

John O'Connell

CEO and Founder, Stanwich Energy

“Nectar enables faster insights, smarter forecasting, and more accurate budget tracking. It also strengthens our ability to deliver on key sustainability goals by providing real-time visibility into usage and emissions.”

Matt Greening, Founder and Director at Nettzero — Nectar customer

Matt Greening

Founder and Director, Nettzero

“Nectar serves as a reliable and cost-effective technology solution to extract, store, and analyse sustainability data leading to enhanced reporting capabilities and streamlined workflows.”

Ready to get started with Nectar?

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Learn more about Nectar

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Nectar is an AI-native utility bill management platform for commercial and industrial organizations, with 99.2% line-item parsing accuracy, coverage of 7,000+ utility providers, and automated data collection.

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Data Completeness ViewAutomated Data CollectionCarbon Accounting IntegrationsAudit TrailTariff and Rate OptimizationsLate Penalties and Tax TrackingUtility Bill PaymentsUtility Bill AuditsBudgeting and ForecastsBenchmarks and AuditsEnergyStar IntegrationDemand ManagementHistorical Bill AuditProcurement AdvisoryProjects, Rebates, and Grid ProgramsWaste and RecyclingUtility Account Open and CloseAP and ERP IntegrationAI Agent and Smart Reports