If your clients are finding errors in your invoices, you've not only lost margin but also trust
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Every client-found error is a credit note you write to yourself
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Disputes don't just cost the disputed amount; they reset the relationship
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A 5% first-time dispute rate is the industry's "normal." That's the problem. Zero disputes from zero defects should be the new normal.
Every clause in your contract is a potential leak in your invoice
MSAs, SOWs, side letters, and state regulations are all binding, yet none enforced at scale. Every renegotiated rate is a future write-off waiting to happen.
Your team cannot keep pace with the complexity of billing rules
Manual review scales linearly while billing complexity scales exponentially. More people, more reviews, but the same outcome. Errors find their way through.
Overbilled. Underbilled. Either way, it costs you.
$2M
overbilling return over 18 months isn't unusual. What's unusual is knowing about it before the client does.
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3-4%
net margins staffing firms operate with. A firm writing off 3% of revenue in billing errors is losing nearly as much as it earns. That's not a rounding error; it's a second P&L.
Every transaction is verified and corrected before the invoice leaves the building
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100% verification.
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Every line item reconciled to the contract automatically.
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Errors caught upstream don't become disputes downstream.
Timesheets. Invoices. Cash. Three leaks. Just start with one.
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No transformation project. No system replacement. No months-long rollout. Live in weeks.
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Pick the leak that hurts most and fix it in a week.
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Our solution pays for itself before the next quarterly close.
From contract ingestion to validated pre-invoices
Hercules learns billing rules from contracts, validates every invoice against them before it ships, and prevents underbilling, overbilling, and write-offs.
Three capabilities, one critical process, start anywhere for fast impact
Address any point in the chain, or fix all three, to stop revenue leakage end to end.
What executives ask before engaging
Have more questions?
The most common sources are contract mismatches: unenforced rates from MSAs, SOWs, side letters, and renegotiated terms that never made it into the billing system. Beyond simple rate errors, Hercules catches markup drift (where the tier applied no longer matches the current contract), overtime billing calculated with the payroll multiplier instead of the client-contracted multiplier, shift differential premiums applied to the wrong hours, conversion fee calculations using outdated hour thresholds, and much more. Every single contractual term that impacts billing is extracted by Hercules, converted into a structured rule and validated deterministically against your transactional data. Underbilling is just as common as overbilling, and far less visible, because clients do not call to report that they were undercharged.
That is exactly the problem. Most staffing firms spot-check a small percentage of invoices before they go out the door. Industry norms suggest roughly 3% of invoices receive manual pre-bill review. The remaining 97% ship with no verification against the actual contract terms. Underbilling is entirely invisible in this model because clients pay what they are asked and the lost revenue simply never surfaces. Overbilling is only flagged when the client notices, at which point it has already damaged trust and may trigger churn. With Hercules, you move from 3% spot-check coverage to 100% pre-invoice validation without adding headcount, a leverage factor of more than 33x. In a single client pre-invoice review, Hercules found 1,568 billing issues that had passed internal checks. The absence of complaints is not the same as accuracy.
Most staffing companies are spot-checking invoices before they go out rather than validating every line against contract terms because full manual review at volume would require dramatically increasing headcount. Hercules works alongside your existing process as a force multiplier, catching what slips through the spot-check. The economics are straightforward: manual review scales linearly with transaction volume, but billing complexity scales faster — more clients, more amendments, more rate tiers, more exceptions. Hercules handles the combinatorial math so your billing team can focus on the judgment calls.
New amendments are ingested and parsed as they arrive (MSAs, SOWs, side letters, rate amendments in any format) updating the contract rule library. Rate changes propagate across all downstream validation so that every subsequent invoice reflects the current terms. Every amendment creates an audit record: any discrepancy traces to a specific contract version and effective date.
Hercules also offers configurable approval workflows for extracted rules, so your team reviews and approves what the extraction engine produces before it becomes an active billing rule. This directly addresses one of the most common sources of revenue leakage: the amendment that gets filed but never makes it into the billing system.
Additionally, Hercules offers the flexibility to add and enforce temporary rules, based on an email agreement with the client on rate changes, until a formal amendment is signed, allowing you to send a correct bill immediately per client expectations even if other internal processes to document a contract may be lagging behind.
New amendments are ingested and parsed as they arrive (MSAs, SOWs, side letters, rate amendments in any format) updating the contract rule library. Rate changes propagate across all downstream validation so that every subsequent invoice reflects the current terms. Every amendment creates an audit record: any discrepancy traces to a specific contract version and effective date.
Hercules also offers configurable approval workflows for extracted rules, so your team reviews and approves what the extraction engine produces before it becomes an active billing rule. This directly addresses one of the most common sources of revenue leakage: the amendment that gets filed but never makes it into the billing system.
Additionally, Hercules offers the flexibility to add and enforce temporary rules, based on an email agreement with the client on rate changes, until a formal amendment is signed, allowing you to send a correct bill immediately per client expectations even if other internal processes to document a contract may be lagging behind.
Every rule Hercules extracts is tied to the specific contract clause it came from and the source language is visible alongside the structured rule. Your team can review, approve, or correct any extracted rule before they are validated against transactional data. Rules that made it past the review cycle but still need refinement once enforced against transactional data can be easily improved and revalidated by providing feedback to the AI in natural language (e.g., this markup rate exception doesn’t apply to all assignments in California, just those in San Francisco). Once a rule is approved, it is applied consistently to every matching transaction with no variance and zero hallucination. The combination of LLM-powered extraction with human-in-the-loop approval and deterministic enforcement gives you AI speed with human-verified precision.