A service, not software
Send us your unpaid B2B invoices. For the next 30 days we write and send a short reminder to each business that owes you, about once a week for four weeks. You keep doing your work. We recap the month.
Sentdue is not a collection agency. We send email only — no calls, no texts, no visits, no legal language, no credit reporting. We only email businesses that owe your business.
Hi Dana,
Following up on invoice 1042 for $4,800, which was due on July 18. Copy attached.
If it's already scheduled, could you let me know the date? If something's holding it up, tell me what you need and I'll get it over.
Pay it the way you normally do — nothing about that changes.
Thanks,
Marisa — Ridgeline Studio
Four sends, one recap. Your only job is the first step.
A CSV or your aging report straight out of QuickBooks, Xero, or a spreadsheet. Invoice number, amount, due date, contact.
You see the wording and the send schedule before anything goes out. Change any of it.
Four sends per invoice, spaced about a week apart. Replies come to you. Anything paid or disputed drops out of the sequence.
What was sent, who replied, what's still open, and which accounts are worth a call from you.
We never take money from the business that owes you. They pay you the way they already pay you.
The default is "Sentdue on behalf of [your business]." If you'd rather it come from your own address, you approve that in writing first.
Every reply lands in your inbox. Tell us to stop on any account and it stops that day.
These are limits, not a starter tier.
We only email businesses that owe your business. If your unpaid invoice is owed by a person, we can't help and we'll say so on the first call.
Built for owner-run US service businesses that invoice other businesses: agencies, consultants, B2B contractors, studios.
Takes 20–40% of what it recovers and talks to your client like a debtor. Fine for accounts you've written off, rough on ones you want to keep.
A seat, an annual contract, and a setup weekend. Then you're still the one writing the reminders — just inside a new tool.
One flat fee for 30 days of polite, dated follow-up written and sent by us. You keep every dollar that comes in.
One list, 30 days
Includes writing the emails, four weekly sends per invoice, reply routing to you, and the end-of-month recap. No percentage of recoveries. Renew month to month or don't.
Send your list after you pay. Nothing goes out until you approve the wording.
A CSV, an aging report, or a screenshot of your invoice list. If your columns are named something else, that's fine — we'll sort it out.
The emails are short, factual, and reference one invoice with its date and amount. No pressure language, no deadlines we can't back up. You read the wording before the first send.
You get the recap with everything that was sent and where each invoice stands, plus which accounts we'd escalate to a phone call from you. We don't make that call, and we don't hand anything to an agency.
No. $399 is the whole cost of the month whether nothing comes in or all of it does.
Only if you ask for it and approve it in writing. Otherwise every message says "Sentdue on behalf of" your business, so nobody is misled about who is writing.
We aren't one. We don't buy debt, report it, threaten legal action, or collect money. We write reminder emails on your behalf and stop when you say stop.
Tell us and it comes out of the sequence the same day. Same for anything disputed or renegotiated.
Send us the list once. We'll take the next thirty days.
Start a month — $399