Payment and Invoice Reminders That Actually Get Paid
The short answer
Late invoices cost more than the invoice amount. 60% of B2B credit sales run overdue. Collection odds drop from 69% at day 90 to 21% at day 365. A six-message ladder on iMessage reaches approvers who actually read it. Read receipts show whether silence is avoidance or never-saw.
5 use cases in this category
Trigger
Event in your CRM
Under 9 seconds
Send iMessage
Result
Reply in the thread
Key takeaways
- Collection odds: 69% at day 90, 51% at 6 months, 21% at 12 months.
- Pre-due (day -3): surface problems early.
- The cadence is six sends across sixty days, the working shape for most B2B invoices on net-30 terms.
- Pre-due: "invoice 4471 for $8,400 due thursday.
- Native: GoHighLevel, HubSpot, Close, Salesforce, Pipedrive, Follow Up Boss.
- Baseline DSO first, then compare at 90 days.
Where iMessage runs in the funnel
Late invoices hit cash flow and odds
Collection odds: 69% at day 90, 51% at 6 months, 21% at 12 months. $100k slipping from 30-day to 90-day cycle doesn't disappear; it stops being available for payroll and inventory.
Channels that fail and channels that work
Email: 27.7% open, 85% spam-flagged. Text: 98% open, under 3% spam. Silence in email is ambiguous; a blue-bubble reminder reaches a named human and read receipts show what actually happened.
The six-step ladder: tone shifts at each rung
Pre-due (day -3): surface problems early. Due-day: neutral, factual. Overdue (day 3-10): curious, assume friction. Escalation (day 21-35): firm, specific. Automation stops day 60; account moves to human, plan, or agency.
What Does the Cadence Look Like?
The cadence is six sends across sixty days, the working shape for most B2B invoices on net-30 terms. Stretch the pre-due window for net-60 or net-90, and compress the overdue rungs for smaller balances.
- Schedule every send inside the recipient's local business hours and keep the ladder on weekdays. A payment reminder at 8pm on a Saturday says more about you than it does about the invoice.
Pre-due nudge
- Timing
- 3 business days before due date
- Tone
- Helpful, zero pressure
- What the message does
- Confirms the invoice landed, offers the link, invites blockers
Due day
- Timing
- Morning of the due date, local time
- Tone
- Neutral and factual
- What the message does
- States amount, invoice number, payment link
First follow-up
- Timing
- Day 3 past due
- Tone
- Curious, assumes friction
- What the message does
- Asks what is holding it up, offers to resend to AP
Second follow-up
- Timing
- Day 10 past due
- Tone
- Direct, still warm
- What the message does
- Asks for a specific payment date
Escalation
- Timing
- Day 21 past due
- Tone
- Firm and specific
- What the message does
- Names the contract term now in effect
Final notice
- Timing
- Day 35 past due
- Tone
- Formal, unemotional
- What the message does
- States the next step and the exact date it happens
Handoff
- Timing
- Day 60 past due
- Tone
- Person to person
- What the message does
- Sequence ends and the account moves to a human, a plan, or an agency
Copy that gets paid: invoice number every time
Copy that gets paid: invoice number every time
Pre-due: "invoice 4471 for $8,400 due thursday. anything you need?" Day 10: "4471 ten days out; send to AP?" Day 21: "4471 three weeks out. 1.5% late fee kicks in. payment date by friday?"
Those are our assumptions. The Blue Funnel Map runs the same arithmetic on the funnel you actually have, and you keep the map either way.
Run these numbers on your funnelCompliant texting for B2B invoicing
Compliant texting for B2B invoicing
TCPA governs: STOP auto-enforced. FDCPA doesn't reach commercial invoices. A2P 10DLC isn't needed; iMessage isn't SMS. First-party creditor sending own invoices needs no special status. Have counsel bless templates.
Setup: trigger on due date, not invoice creation
Setup: trigger on due date, not invoice creation
Native: GoHighLevel, HubSpot, Close, Salesforce, Pipedrive, Follow Up Boss. Also: Zapier, Make, n8n, REST API. Enroll three days pre-due. Wire payment-received webhook to exit. Scheduled sends in recipient timezone.
Measure DSO, write-off rate, collection time
Measure DSO, write-off rate, collection time
Baseline DSO first, then compare at 90 days. Read receipts diagnose: unread = contact record, read-no-reply = priority. Hold 10-20% on email-only for 90 days to see the lift.
Frequently asked questions
Can we text business customers about unpaid invoices?
Yes. It's ordinary commercial communication. TCPA governs; keep the basis documented and honor opt-outs. FDCPA doesn't reach commercial invoices.
When should the first reminder go out?
Three days pre-due. Catches missing PO numbers and approvers out of office while there's time to fix it.
Should amount and invoice number go in the message?
Yes, every message. Recipient should identify and act without opening portal or email. Include payment link.
What if the billing contact is not on iPhone?
Delivery falls back to RCS then SMS automatically. Blue-bubble contacts get conversational tone; fallback contacts get slightly more formal copy.
Turn your aging report into cash
Run the full ladder from one line: pre-due nudge, due-day reminder, four-rung overdue sequence. $249 per line per month or $1,949 per year, unlimited iMessages (50 opted-in / 30 cold new contacts a day), no per-message fees, no A2P registration. Six native CRM integrations plus Zapier, Make, n8n and REST API. White-glove activation waived on annual.