Contractor Finance Glossary
What is Billing Speed (Days to Invoice)?
Definition reviewed . Source observations retain their stated periods.
Also called: days to invoice, time to bill
Billing speed measures the lag from a defined billing-ready event to invoice issue. Service-job completion and a contractual progress-billing date require separate comparisons.
Cash cannot arrive until the invoice goes out. Every day a completed job sits unbilled is a day of free financing you are handing the customer, and it happens quietly because the work is done and everyone has moved on to the next job. Billing speed makes that delay visible.
For service work, connect closeout, cost coding and billing, and investigate late costs through the applicable adjustment or supplemental-billing process. For progress-billed work, use the contractual cutoff or billing-ready date instead of treating every multi-week cycle as a failure. Faster invoicing can shorten completion-to-cash time; customer payment terms and behavior remain separate.
How it is calculated
Per eligible job, billing lag = invoice issue date minus the chosen completion/billing-ready date. Report the median and share exceeding an owner-chosen threshold, separating service completion and contractual progress-billing populations. The Level Index publishes a 1-day median across n=733 companies, about 25% of which progress-bill; among post-completion invoicers the adjusted median is 7 days (subset count not published). Overall research window is 2022-2026, not a proven identical observation period for every metric.
Related reading
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