How do you handle progress invoices?
Progress invoices let you bill your client for completed work phases instead of waiting until the job is done. This keeps cash flowing instead of tying it up in long projects. We'll walk through how to structure them, what to include, and how to speed up payment.
Break the job into billable milestones
A progress invoice ties payment to actual work completion, not just time passing. For a concrete driveway, that might be: invoice 1 when you finish prep and base work, invoice 2 after the pour, invoice 3 after finishing. For roofing, it could be tearoff, framing repairs, sheathing, then final roofing and cleanup. You control the breakdown based on your process. The key is making each milestone a logical stopping point that's obvious to the client. A $25,000 job divided into three invoices of $8,333, $8,333, and $8,334 is clean and removes ambiguity. Be specific in your invoice description: don't just write "work completed." Write "site prep, material delivery, and foundation excavation completed 4/8." The client sees exactly what they're paying for, which reduces payment delays from confusion.
Get the payment schedule in your contract upfront
Don't create progress invoices on the fly. Write the payment structure into your contract before work starts. Something like: "50% upon signing, 30% at frame completion, 20% upon final inspection." Or for a plumbing roughin into trim out: "40% deposit, 40% upon roughin inspection, 20% upon completion." This prevents arguments later about when money is due. Make sure your contract also specifies the payment terms for each invoice—net 7, net 10, net 30—and your method (check, ACH, credit card). If a client bails after phase one, you've still been paid for the work you did. If they love the work after phase one, they're less likely to dispute payment for phase two. The contract is your protection and your client's clarity.
Send invoices the day the phase completes
The faster you invoice, the faster you get paid. Don't wait until end of month to batch invoices. The moment a milestone is done, send the invoice same day or next morning. This keeps the work fresh in the client's mind and in their approval queue. You've also documented completion while photos and notes are current. Include photo evidence of the work on the invoice or attach it separately. Real example: a plumber finishes roughin inspection on a Wednesday. Invoice sent Thursday morning with dated photos. Client approves Thursday afternoon. Check clears the following Tuesday. That's 6 days from completion to cash. If you wait until the 30th to invoice, that same client is reviewing it a month later and the approval cycle resets. Digital payment options also speed this up—if you accept ACH or credit card, clients can pay immediately instead of cutting a check and mailing it.
Track completion evidence and dispute prevention
Every progress invoice needs proof of what was done. Photos dated on the day of work are standard. For bigger jobs, a site walk-off photo with the client present is better—screenshot it or print it. Keep a simple checklist in your job folder: "Foundation excavation—photo set 1. Footing inspection—photo set 2. Frame raising—photo set 3." When you invoice for each phase, attach the relevant photos. This isn't busywork—it cuts payment disputes in half because the client can see exactly what you completed. For digital payment, it also builds trust. A client seeing photos alongside an invoice is more confident to hit the "pay now" button than reviewing an invoice with no supporting documentation. If a client disputes what work was complete, you have proof. That protects your cash flow and your reputation.
Bottom line
Structure your big jobs into 2–4 billable milestones, put the schedule in your contract, and invoice the day each phase finishes with photo proof. You'll shorten your payment cycle by weeks and reduce payment disputes at the same time.