Billing Preflight for software agencies

The invoice, verified before it leaves.

Agreement, approved work and draft invoice reconciled by deterministic code, traced to the evidence.

Billing Preflight

Sample data

01 · Trace
Agreement · Retainer terms
$6,000 / month · 40 h included · overage $175 / h
…covering up to forty (40) hours of Services per calendar month. Hours performed in excess of the monthly allowance shall be invoiced at one hundred seventy-five dollars ($175) per hour…Master Services Agreement · §4.2 · Clause, verbatim
02 · Match
Approved work · August 2026
48.5 h approved in timesheets · 8.5 h above the included 40 h
harvest-august.csv · 20 approved entries
03 · Gap
Draft invoice · one line
Draft invoice NWD-2026-0814
Monthly retainer — August 2026$6,000.00Overage 8.5 h — not invoiced—
04 · Verify
Deterministic result
8.5 h × $175.00 = $1,487.50
$1,487.50VERIFIED_MISSING
Deterministic calculation, traced to the clause. No AI touches the money.

Every figure is calculated by deterministic code from evidence you confirmed. No AI touches the money.

Truviate is a service operated by VELM.

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