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Get paid on time: progress billing, collections and lien deadlines

Invoices that go out at every milestone, reminders that go out on schedule, and lien dates you never find out about too late.

BuildSquad Team4 min readUpdated Nov 5, 2026

Live example: a milestone turned into progress invoice #2 by the Billing Agent. Simulated demo.

Why contractors get paid late

Most late payments aren't about clients refusing to pay. The invoice went out late, or not at all, because the owner was busy running jobs. Then nobody followed up, because asking for money is awkward. Meanwhile you have already paid for materials, crews and subs.

What a billing agent does

  1. Bills at every milestone. When the job log shows a milestone is done (demo, rough-in, cabinets, final), it drafts the progress invoice.
  2. Includes signed extras from the Change Order Agent, so nothing is forgotten.
  3. Sends after your approval with a link to pay online.
  4. Follows up on schedule: a friendly reminder, then a firmer one, each approved by you.
  5. Reminds you of lien and notice dates on unpaid jobs, so you can act before they pass.
Lien rules are strictIn Texas, lien and notice deadlines are set by Chapter 53 of the Property Code and depend on the type of project and your role. The agent tracks the dates your attorney or lien service sets. It does not give legal advice or file anything on its own.

Small habits that speed up payment

  • Agree on the payment schedule in the contract, tied to milestones the client can see.
  • Send the invoice the same day the milestone is done.
  • Make paying easy: a link, not "mail a check."
  • Follow up on a fixed schedule, not when you remember.

Getting paid is half of it. Knowing which jobs actually made money is the other half, which is where the Bookkeeping Agent comes in. Also see how to keep subs on schedule and insured.

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