For anyone who does the work, then waits to get paid
Invoices get paid when you stop chasing—and start nudging.
FieldNudge is dead-simple invoicing with automatic, polite payment reminders for small service businesses and independent professionals. It chases your unpaid invoices on your behalf — before the due date, on it, then 3, 7, 14, and 30 days overdue — until the customer taps “Mark as paid.” No accounting software.
Free for 30 days or 30 invoices. No card.

The part nobody warns you about
Sending the invoice is the easy part — every free tool does it. The hard part starts after. A small business owner or freelancer can spend what feels like half their working hours just collecting money they've already earned. And the reason is almost never the customer. It's that nobody has the time to follow up.
“Collecting money is about half the job. You can have a contract and it still happens too often.”
FieldNudge exists for exactly that gap — the follow-up that never happens because you're already on the next job.
How it works
- 1
You send the invoice
Four fields: customer, email, amount, due date. We attach a clean PDF and a link to view it online.
- 2
We nudge — gently
Polite reminders before the due date, on the due date, then 3, 7, 14, and 30 days overdue. Every email escalates in tone — from "A quick heads-up" to "Final notice" — without sounding like a debt collector.
- 3
Your customer taps “Mark as paid”
The email shows the full invoice with a "Mark as paid" button. They tap it, confirm on the page, and you get notified. Every reminder stops automatically.
Built for your trade
The follow-up looks a little different in every service business. Here's how FieldNudge fits yours.
Here's the exact rhythm
Gentle first, firmer only if it drags on — never debt-collector tone. Up to six polite nudges, then we stop.

What it doesn't do
- ✕ No bookkeeping.
- ✕ No scheduling.
- ✕ No QuickBooks integration.
- ✕ No 12-step setup.
It does one thing: chase your unpaid invoices for you.
Pricing
$9/mo to start
First 3 paid months, then $19/mo
- Yearly: $168 — locks in $14/mo equivalent (save $60).
- Free for 30 days or 30 invoices — no credit card to start.
Recover one $2,400 invoice and you've covered more than ten years of FieldNudge. The math isn't the hard part — the follow-up is.
Guides
Honest reads on getting paid, and on picking software that fits a small business or solo practice.
Getting Paid · 7 min read
How to Set Up Automatic Payment Reminders in FreshBooks (2026)
FreshBooks can automatically email up to three invoice reminders — and even add late fees. Here's exactly how to turn them on, what you can customize, and where the built-in feature stops short.
Getting Paid · 6 min read
How to Send Automatic Payment Reminders on PayPal Invoices (2026)
PayPal can remind customers about unpaid invoices — both manually and automatically. Here's how to set up PayPal invoice reminders step by step, and where the built-in option falls short.
Getting Paid · 7 min read
How to Set Up Automatic Payment Reminders in QuickBooks Online (2026)
QuickBooks Online can send automatic invoice reminders — here's exactly how to turn them on, step by step, plus what they can't do (and when a dedicated reminder tool fits better).
Templates · 6 min read
Payment Reminder Email Templates: 6 Polite Scripts to Get Invoices Paid (2026)
Free, copy-paste payment reminder email templates — from a friendly heads-up before the due date to a firm final notice on an overdue invoice. Wording that gets you paid without sounding like a debt collector.
Comparisons · 8 min read
The Best Housecall Pro Alternatives for Solo Trades (2026)
Housecall Pro is powerful — but overkill if you just want to send invoices and get paid. The best lighter, cheaper alternatives for independent service pros, compared honestly.
Getting Paid · 9 min read
Why Your Invoices Aren't Getting Paid — and How to Actually Fix It
Late and unpaid invoices are rarely a payment problem — they're a follow-up problem. The 7 real reasons invoices sit unpaid, and what actually works to collect them without becoming a debt collector.
Comparisons · 7 min read
ServiceTitan Too Expensive? Cheaper Alternatives for Small Trades (2026)
ServiceTitan runs roughly $245–500 per technician per month, plus implementation and a contract — built for 20+ tech operations. If you're solo or a small crew, here are the cheaper alternatives that actually fit.
Comparisons · 8 min read
The Best Jobber Alternatives for Solo Trades (2026)
Jobber is excellent for growing service crews — but overkill if you just want to send invoices and make sure they actually get paid. The best lighter, cheaper alternatives for small service businesses and freelancers, compared honestly.
Comparisons · 7 min read
Square Invoices Alternatives for Solo Trades (2026)
Square Invoices is free and great at collecting card payments — but its reminders are off by default and wired to Square's own card processing, so the follow-up that actually gets you paid is still on you. The best alternatives for solo pros whose real problem is overdue invoices.
Getting Paid · 9 min read
Invoice Reminder Software: What It Is and How to Pick One (2026)
Invoice reminder software sends polite, automatic payment follow-ups so you don't have to chase overdue invoices by hand. What it is, how it works, and how to choose — for small service businesses and independent professionals.
Getting Paid · 8 min read
Invoice Reminders for Freelancers — How to Get Paid Without the Awkwardness (2026)
Late payments are the most awkward part of freelancing. Invoice reminder software sends polite, automatic follow-ups so you don't have to guilt-trip your best clients. Here's how it works and how to pick one.
Getting Paid · 9 min read
B2B Invoice Reminders for Service Businesses — Stop Chasing Net-30 Payments (2026)
Commercial cleaning, IT services, landscaping, and other B2B service companies live and die on net-30 cash flow. Automated invoice reminders recover overdue payments without burning client relationships.
Frequently asked questions
Do you handle the payment?
No — and that's the point. Your customer pays you the way they always have: check, Venmo, Cash App, or your own card link. We just make sure the invoice actually gets paid. We never touch their money, so there's nothing to reconcile.
Will my customers think it's spam?
No. Reminders come from invoices@fieldnudge.com with your business name in the subject. You're CC'd on every email, and customers can just hit reply to reach you directly.
How does my customer mark an invoice as paid?
Every reminder email includes the full invoice and a "Mark as paid" button. When your customer taps it, they're taken to a page to confirm. You get notified, and every future reminder for that invoice stops automatically — no manual work on your end.
What if a customer never opens the email?
The cadence doesn't change based on opens — it's the same polite rhythm either way: a nudge before the due date, on the due date, then 3, 7, 14, and 30 days overdue. You're CC'd on every email and can see each one's status on your dashboard, so if an invoice goes quiet you'll know and can follow up with a call yourself.
What does it cost?
Free for 30 days or 30 invoices — no credit card to start. After that, founding customers get $9/month for the first 3 paid months, then $19/month. Annual is $168/year.
I run a small B2B service company. Can I send invoices to a large client with net-30 terms?
Absolutely. FieldNudge is built exactly for that scenario. You set the invoice and the due date — 30, 60, or even 90 days out. We send polite reminders before the due date and follow up automatically if it goes past due. No awkward phone calls.