When a contractor invoices ahead of work finished as indicated on the WIP schedule or the over/under billings report, this is known as overbilling. For example, if a contractor bills 60% of a task's estimated revenue but only accounts for half of the estimated expenditures, the job is overbilled. Overbilling is often viewed positively by construction CPAs and sureties. Overbilling allows contractors to stay ahead of their cash flow, but it is essentially borrowing against future work that has yet to be completed.'
IES Winter 2026 delivers construction beta with project phases, cost groups, AIA invoicing, and negative change orders, plus parallel approvals, AI agents, BI tools, and MAC migration support. RedHammer breaks down every feature with honest takes on what still needs work.
Read MoreIntuit launches its first industry-specific ERP for construction. The IES Construction Edition covers the full project lifecycle—from proposals to AIA invoicing—with AI-powered tools and multi-entity support, putting traditional construction platforms on notice.
Read MoreRedHammer and Hammr partner to connect construction payroll, time tracking, and compliance to clean job costing, WIP, and reporting. Contractors capture labor correctly in the field and map it into accounting for faster close, clearer margins, and earlier project visibility.
Read MoreQuickBooks Classes give you one tracking dimension. IES Dimensions provide up to 20, with hierarchies, multi-tag reporting, better job costing, and multi-entity consolidation, offering contractors deeper insight and cleaner, more flexible financial reporting.
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