Why Billing Latency Is the Cheapest Margin Lever in an Agency

Every week an invoice sits unpaid is a week the agency funds client delivery out of its own balance sheet. The strategic move is not picking a prettier invoice template but compressing the gap between tracked work and cleared cash, because that gap is the only working capital an agency can manufacture without borrowing. As tool churn accelerates and single-vendor dependency becomes a documented operational risk, the agencies that win are the ones whose billing rails survive a platform swap.