Does accounts payable count as a project cost before it is paid?

Yes. The moment a subcontractor invoice is approved, the work it bills for has already been done, so the cost belongs to the project in that period whether the check goes out tomorrow or in sixty days. Leaving AP out of the cost picture makes a job look cheaper than it is for exactly as long as the payment terms run, and that is long enough to distort a monthly cost report, a percent-complete calculation, and a cost performance index. Incurred cost is defined as paid plus payable plus accrued for this reason.

What is AP aging on a construction project?

AP aging sorts the unpaid approved invoices by how long they have been outstanding, commonly into 0 to 30, 31 to 60, 61 to 90, and over 90 day buckets. A healthy payable balance sits mostly in the first bucket and turns over as terms come due. A balance drifting into the older buckets usually means one of two things: the contractor is waiting on the owner under a pay-when-paid clause, or it is stretching its vendors to cover cash it does not have. Subcontractors, suppliers, and sureties all read the aging the same way.

How is accounts payable different from an accrual?

An accounts payable entry has a real invoice behind it: the vendor has billed, the amount is known, and the only thing missing is the payment. An accrual has no invoice yet. The work was performed or the materials were delivered, but the vendor has not billed, so the contractor books an estimate to keep the cost of the period honest. When the invoice finally arrives, the accrual is reversed and the amount moves into payables. Both are unpaid; only one is a firm, invoiced number.

Construction Glossary · Financial & Accounting

AccountsPayable

Approved, owed, and not yet paid. The invoice is in the system and the work is in the ground, so the cost is real today even if the check is forty days out.

Definition

Accounts payable (AP) is the set of vendor and subcontractor invoices a contractor has received, reviewed, and approved but has not yet paid, usually because they sit inside Net 30 or Net 60 terms or behind a pay-when-paid clause. It is a current liability on the balance sheet, and because the work behind each invoice has already been performed, it is part of the incurred cost of the project even though no cash has left the account.

From inbox to aging bucket

Every invoice follows the same path: it lands, it is checked against the contract and the work in place, it is approved, and then it waits out its terms. The waiting is where aging begins. On this job, $0.9M of approved invoices is outstanding, most of it fresh, a little of it drifting past sixty days.

Payable, accrued, committed: who has an invoice?

Three unpaid balances sit next to each other on a cost report and mean three different things. The distinguishing question is whether there is an invoice, and whether the work has been done.

Balance	Work performed?	Invoice in hand?	Part of incurred cost?
Accounts payable	Yes	Yes, approved	Yes
Unbilled accrual	Yes	Not yet, estimated	Yes
Open commitment	Not yet	No	No

Add the paid invoices to the first two rows and you have incurred cost. The third row is committed cost still waiting to be worked.

Where AP fits in POD

POD works from the actual cost you confirm against each pay application and cost record, and holds that figure apart from open purchase orders and pending changes, so cost performance is judged on work consumed rather than on checks cleared. The payable ledger itself, with its approval queue and aging buckets, lives in your accounting system; POD does not maintain a separate AP register or decide when a vendor gets paid. What it adds is the comparison: the cost you bring in, including what is payable, set against progress measured in the field.

See where payables sit in the money flow

Frequently asked questions

Unpaid is not the same as uncounted

Payables are one of three layers of incurred cost, and incurred cost is the first link in the chain that ends at what you billed. The guide walks the whole circuit on one example.

The money-flow guide Back to the Glossary