Customer Billing Audit · 100-Invoice Proof Audit

Find where customer invoices do not reflect what your contracts allow you to bill.

Billing systems generate invoices from configured rules. AllCaps is the audit layer that checks whether customer invoices reflect the commercial terms in the governing contract.

Start with your own contracts and invoices. No ERP, CLM, or operational-system integration is required for the standard audit.

$1,500

100-Invoice Proof Audit

Up to 100

Historical invoices

No integration

Contracts and invoices are enough

The question

Are we billing what the contract allows us to bill?

CFOs, controllers, and billing or revenue operations leaders who want contract-level assurance beyond ordinary invoice generation and approval controls.

Beyond workflow automation

A customer invoice can be generated on time and pass every approval while still using an outdated rate, missing an allowed fee, applying the wrong tier, or overlooking a contractual price adjustment. Those are commercial-term errors, not billing-workflow errors.

Beyond Billing Automation

49+ contract checks ordinary billing systems don't perform

Billing systems generate invoices from configured rules. AllCaps reads the governing agreement and tests every customer invoice against the commercial terms it allows you to bill.

What typical billing automation catches

Transaction and workflow checks

13workflow
checks
  • Customer and billing account validated
  • Invoice generated on schedule
  • Configured product or service selected
  • Configured quantity applied
  • Configured price applied
  • Tax calculation / detection
  • Invoice numbering and date validation
  • Required billing approvals obtained
  • Credit memo workflow
  • Duplicate invoice prevention
  • Payment terms displayed
  • Invoice delivered to the customer
  • Audit trail of billing workflow
What AllCaps catches

Contract-specific revenue checks

49contract
checks

Rates & price realization

  • Contract rates fully billed
  • Current unit prices applied
  • Annual price increases applied
  • Latest rate-card pricing applied
  • Blended-rate calculations fully billed
  • Price-protection expirations applied
  • Renewal pricing formulas applied
  • Index-linked increases applied (e.g., CPI)
  • Currency conversion rules applied

Discount & credit controls

  • Discounts do not exceed contract terms
  • Bundle discounts end when unbundled
  • Contractual tax allocations and exclusions
  • No-charge treatment limited to contract scope
  • Fee waivers expire as contracted
  • Customer credits do not exceed contract terms

Minimums & calculation controls

  • Minimum charges (monthly / quarterly / annual)
  • Minimum invoice amounts
  • Fixed-fee / work-order amounts fully billed
  • Contracted labor rates fully billed
  • Contracted overtime rates applied
  • Minimum-spend / commitment shortfalls billed
  • Period-level minimums evaluated across invoices
  • Arithmetic & quantity errors that reduce billing

Billing periods & lifecycle revenue

  • Overage charges on invoice-reported quantities
  • Proration calculations not understated
  • Partial-period charges fully billed
  • Ramp pricing advances on schedule
  • Introductory pricing expires on schedule
  • Contracted one-time fees billed
  • Recurring fees billed through the contract term
  • Early-pay discounts not overapplied

Permitted fees, surcharges & markups

  • Contract-permitted travel reimbursement rates
  • Freight surcharge formulas applied
  • Fuel surcharge formulas applied
  • Administrative fees applied
  • Management fees applied
  • Processing fees applied
  • Contractual finance-charge rates applied
  • Contractual markup percentages applied
  • Permitted pass-through markups applied
  • Subcontractor / material margins applied
  • Permitted shipping / handling charges applied
  • Surcharge / markup undercalculations

Tiers, quantities & overages

  • Volume-tier pricing triggers applied
  • Cumulative billing thresholds applied
  • Included-volume allowances not overextended
  • Contracted minimum quantities billed
  • Invoice-reported quantities billed at the correct band
  • Higher rate tiers applied after thresholds

Rates & price realization

  • Contract rates fully billed
  • Current unit prices applied
  • Annual price increases applied
  • Latest rate-card pricing applied
  • Blended-rate calculations fully billed
  • Price-protection expirations applied
  • Renewal pricing formulas applied
  • Index-linked increases applied (e.g., CPI)
  • Currency conversion rules applied

Minimums & calculation controls

  • Minimum charges (monthly / quarterly / annual)
  • Minimum invoice amounts
  • Fixed-fee / work-order amounts fully billed
  • Contracted labor rates fully billed
  • Contracted overtime rates applied
  • Minimum-spend / commitment shortfalls billed
  • Period-level minimums evaluated across invoices
  • Arithmetic & quantity errors that reduce billing

Tiers, quantities & overages

  • Volume-tier pricing triggers applied
  • Cumulative billing thresholds applied
  • Included-volume allowances not overextended
  • Contracted minimum quantities billed
  • Invoice-reported quantities billed at the correct band
  • Higher rate tiers applied after thresholds

Permitted fees, surcharges & markups

  • Contract-permitted travel reimbursement rates
  • Freight surcharge formulas applied
  • Fuel surcharge formulas applied
  • Administrative fees applied
  • Management fees applied
  • Processing fees applied
  • Contractual finance-charge rates applied
  • Contractual markup percentages applied
  • Permitted pass-through markups applied
  • Subcontractor / material margins applied
  • Permitted shipping / handling charges applied
  • Surcharge / markup undercalculations

Discount & credit controls

  • Discounts do not exceed contract terms
  • Bundle discounts end when unbundled
  • Contractual tax allocations and exclusions
  • No-charge treatment limited to contract scope
  • Fee waivers expire as contracted
  • Customer credits do not exceed contract terms

Billing periods & lifecycle revenue

  • Overage charges on invoice-reported quantities
  • Proration calculations not understated
  • Partial-period charges fully billed
  • Ramp pricing advances on schedule
  • Introductory pricing expires on schedule
  • Contracted one-time fees billed
  • Recurring fees billed through the contract term
  • Early-pay discounts not overapplied

Billing automation generates invoices.AllCaps checks whether they reflect the contract.

How it works

Send contracts and invoices. Review the findings.

The standard Customer Billing Audit uses only customer contracts, amendments or rate cards, and customer invoices.

Step 1

Send

Send the contracts, amendments or rate cards, and historical invoices. PDFs and standard exports are fine.

Step 2

Structure

AllCaps maps the governing commercial terms and connects amendments and rate cards to the correct agreement.

Step 3

Audit

AllCaps checks invoice lines and calculations against the contract terms that can be established from those records.

Step 4

Review

Review evidence-backed findings with the relevant contract and clause support for material issues.

What you get

A focused product proof, backed by source evidence

The Proof Audit demonstrates AllCaps on your records without turning the first step into a consulting engagement or systems project.

Evidence-backed findings

A focused set of invoice exceptions established from the supplied contracts, amendments, rate cards, and invoices.

Contract and clause support

Material findings connect back to the governing contract language so your team can verify the result.

Audit readout

A clear review of what AllCaps found, how each material finding was calculated, and what continuous audit would cover.

100-Invoice Proof Audit

$1,500

Focused, fixed-scope product proof

  • Up to 3 contracts
  • Up to 100 historical invoices
  • No integration required
  • Evidence-backed findings
  • Contract and clause support for material findings
  • Fee fully credited toward a subscription started within 60 days

After the Proof Audit

Continuous Billing Audit

If the proof is useful, move the same contract-to-invoice checks into an ongoing software subscription.

Continuous Billing Audit

AllCaps continuously checks customer invoices against their governing contracts as invoice volumes expand. Volume-based expansion lets coverage grow with the number of invoices audited.

Subscription pricing

Plans start at $2,000/month.

Standard onboarding is included with subscription plans. Custom integrations, unusual data formats, or significant bespoke normalization may be priced separately.

See what your next 100 customer invoices reveal.

Send up to three customer contracts and 100 historical invoices. Review the evidence, then decide whether continuous billing audit is useful.