Invoice AI · Guides · Industries

Accounts receivable automation for contractors

The final payment is the one that drags. Here's how contractors stop chasing it, from the quote to the last reminder.

3 min read · Updated Nov 3, 2026

Key takeaways
  • Most contractor AR problems are solved before the job: deposit, staged invoices, terms in the quote, the payer's mobile number.
  • After the job: reminders from day 1 by text, the invoice by email, a polite call on day 7.
  • "The work isn't finished" replies need you, not a reminder. Automation should route them to you and pause.
  • Spanish-speaking customers get Spanish reminders. It's not optional in most trades.

Why contractors get paid late

Homeowners and GCs pay the final invoice last because the work is done, the urgency is gone, and the number is big. Add a punch-list item they never mentioned and the invoice sits for a month.

The fix has two halves: set the job up so the final payment is small and expected, and chase it from day 1 without it becoming your evening job.

Before the job: the terms that get you paid

After the job: the ladder

  1. Invoice the day you finish, with a card link.
  2. Day 1 after due: a text or WhatsApp.
  3. Day 3: email with the PDF.
  4. Day 7: a polite call.
  5. Day 10: firmer text, asking for a date.
  6. Day 14: final notice.
Hi Lisa, Mike at Ridgeline Remodeling. Hope you're enjoying the kitchen! Final invoice #2207 ($2,100) was due yesterday. Pay link: [link]. Thanks again for having us.

The replies contractors get, and what automation should do with them

A reminder tool that can't tell "I'll pay Friday" from "the trim isn't finished" will annoy the customer and embarrass you. Reply handling is the whole point.

Spanish

In most trades, a share of your customers (and plenty of GCs' site managers) prefer Spanish. A reminder in Spanish from your business name gets a reply; one in English gets forwarded, or ignored. Invoice AI writes and calls in Spanish when you tell it to.

Numbers

A remodeler invoicing $60,000 a month at an average 45 days-to-pay has about $90,000 outstanding at any time. Cut that to 32 days and $26,000 comes back into the business, permanently. That's a truck.

Running it

Invoice AI takes the invoice as one line or a photo of the paper, sends the ladder in your name by WhatsApp, text and email, calls politely on day 7, routes "the work isn't done" to you, and tells you each morning who paid. Three invoices free; then from $9 a month.

Questions people ask

How do contractors get paid faster?

Deposit before starting, staged invoices on long jobs, terms in the quote, the payer's mobile number, and reminders from day 1 by text with a polite call on day 7.

What should I do when a customer says the work isn't finished?

Stop the reminders, fix or discuss the issue, get a sign-off, then restart. Never chase payment and argue quality in the same message.

Can I charge a late fee on a home-improvement invoice?

If it was in the signed quote and within your state's consumer limits, yes. Keep it modest and waive it for prompt payers after a reminder.

Should contractors send reminders by text?

Yes. Homeowners read texts within minutes and reply the same day. Email is for carrying the invoice PDF.

Keep reading

Get paid without chasing.

Watch a 20-second demo, then add your own invoice.

No card needed to try.