Guides · 4 min read
How (and when) the government pays you
Updated October 29, 2026
The government is a reliable customer: it pays its invoices, and it owes interest when it pays late. But it pays after delivery, so on a supply contract you will usually buy the goods first and get paid later. Knowing the timeline is what lets you bid with confidence.
The timeline
- You deliver the goods or finish the work.
- You submit a proper invoice: correct contract number, quantities and prices, matching the award.
- Under the Prompt Payment Act, payment is generally due within 30 days of a proper invoice, and late payments earn interest.
Where you invoice
- Defense agencies, including DLA: WAWF, inside the PIEE system.
- Many civilian agencies: Treasury's Invoice Processing Platform (IPP), or as the contract directs.
- Small purchases may be paid by government purchase card, which is faster.
How much cash to plan for
Plan to front your supplier's cost, shipping and packaging for roughly 30 to 60 days: your supplier's lead time, delivery, then about 30 days for payment. A $5,000 order means about $4,000 to $4,500 tied up for one to two months. Start with orders you can comfortably carry, and grow as payments come back.
Avoid the common delays
- Invoice exactly as the contract reads: one mismatched line can send an invoice back.
- Keep your SAM.gov registration and bank details current; an expired registration can hold payments.
- Keep proof of delivery.
On every bid, ZukoBid shows your cost, your price, the profit, and the delivery check, so you know what you will put up and what comes back before you submit.
Sources
General information, not legal advice. Rules and thresholds change; the solicitation and the official rule are the authority.
More guides
How to win your first government contract (with no experience) →How to bid on DLA's DIBBS: a beginner's guide →Can you resell products to the government? The nonmanufacturer rule, explained →What is a set-aside, and do you qualify? →What is an NSN? National Stock Numbers, explained →How to read a DLA RFQ, line by line →How to find a supplier for a government contract →How to price a government bid (and still make money) →How to register on SAM.gov, step by step (it's free) →What is a CAGE code? →SAM.gov notice types, explained →RFQ vs. RFP vs. IFB: what is the government asking for? →Sources sought and RFIs: why answering one can win you work →How to win micro-purchases (government buys under $15,000) →Unit of issue: the small detail behind big pricing mistakes →FOB origin vs. FOB destination: who pays to ship it? →First article testing, explained →Military packaging and marking for beginners →How to find out who won a government contract, and for how much →ZukoBid is an independent service, not affiliated with or endorsed by any government agency. Figures come from public records and may contain errors; always check the official listing before you bid.