Short answer: These 9 tools send invoices, remind people who haven't paid, read the invoices you get, and pay bills. Some are DIY builds and some are ready-made software.
Last updated: · 9 tools · How we pick
About this list
Chasing unpaid invoices takes time most owners would rather spend on the work. The 9 tools here send invoices, remind people who haven’t paid, read the invoices you get, and pay bills.
DIY builds: Unpaid Invoice Reminder checks your bills daily and sends a friendly, on-time or firm email if one is unpaid. It’s a template for n8n with Google Sheets and Gmail. Plumber Follow-Up Bot follows up on quotes, sends job reminders and nudges people who haven’t paid at 7 and 14 days late. Invoice Data Entry Bot reads invoices, fills in the fields and flags duplicate payments.
Billing software: FreshBooks does invoices, payment reminders and expense tracking. HoneyBook, Dubsado and Bonsai mix proposals, contracts and invoices. BILL handles bill approvals and payments and syncs to your books.
Invoice Coordinator is a ready-made Grok Bot. It forwards new invoices, matches the ones it can, and nudges the right person when one needs a human. It comes with a Grok Bot plan.
Prices come from each maker and change, so check before you buy.
DIY builds
Checks your bills daily and sends a friendly, on-time, or firm email if unpaid.
Any BusinessFree to self-host · Cloud from $20/moNeeds setupInvoice Data Entry Bot
24 hrs/wkReads invoices, fills in the fields, and flags duplicate payments.
24hrs/wk savedAccountingCheck siteNeeds setup
Plumber Follow-Up Bot
6–8 hrs/wkFollows up on quotes, sends job reminders, and nudges people who haven't paid.
6–8hrs/wk savedPlumberCheck siteMedium
Ready-made tools
Invoices, payment reminders, and expense tracking.
Accounting$23/moEasy
Bill approvals and payments with sync to your books.
AccountingCheck siteEasy
Stop invoices from sitting. Forwards new invoices, matches the ones it can, keeps track of what you really spend with each vendor or location, and nudges the right person when one needs a human.
AccountingCheck siteNeeds setup
Proposals, contracts, invoices, and booking in one client portal.
ConsultingFrom $29/mo, billed yearlyEasy
Forms, contracts, invoices, and auto workflows for new clients.
ConsultingFrom $335/yrEasy
Proposals, contracts, time tracking, and invoices.
ConsultingFrom $9/user/mo, billed yearlyEasy
Compare them side by side
| Tool | What it does | Who it’s for | Cost (from maker) | Setup | Time saved | Source |
|---|---|---|---|---|---|---|
| Unpaid Invoice Reminder | Checks your bills daily and sends a friendly, on-time, or firm email if unpaid. | Any Business | n8n free to self-host (cloud from $20/mo); other apps extra | Needs setup | Maker hasn't shared this. Our estimate: ~2–4 hrs/wk | Source for Unpaid Invoice Reminder |
| FreshBooks | Invoices, payment reminders, and expense tracking. | Accounting, Bookkeeping & Payroll | Lite $23/mo (promos often) | Easy | Maker hasn't shared this. Our estimate: ~2–4 hrs/wk | Source for FreshBooks |
| BILL | Bill approvals and payments with sync to your books. | Accounting, Bookkeeping & Payroll | Check site (Team $65/user/mo shown) | Easy | Maker hasn't shared this. Our estimate: ~2–4 hrs/wk | Source for BILL |
| Invoice Coordinator | Stop invoices from sitting. | Accounting, Bookkeeping & Payroll | Comes with Grok Bot plan | Needs setup | Maker hasn't shared this. Our estimate: ~2–4 hrs/wk | Source for Invoice Coordinator |
| Invoice Data Entry Bot | Reads invoices, fills in the fields, and flags duplicate payments. | Accounting, Bookkeeping & Payroll | Check site | Needs setup | 24 hrs/wk | Source for Invoice Data Entry Bot |
| HoneyBook | Proposals, contracts, invoices, and booking in one client portal. | Consultants & Coaches | From $29/mo (billed yearly) | Easy | Maker hasn't shared this. Our estimate: ~2–4 hrs/wk | Source for HoneyBook |
| Dubsado | Forms, contracts, invoices, and auto workflows for new clients. | Consultants & Coaches | From $335/yr | Easy | Maker hasn't shared this. Our estimate: ~2–4 hrs/wk | Source for Dubsado |
| Bonsai | Proposals, contracts, time tracking, and invoices. | Consultants & Coaches | From $9/user/mo (billed yearly) | Easy | Maker hasn't shared this. Our estimate: ~2–4 hrs/wk | Source for Bonsai |
| Plumber Follow-Up Bot | Follows up on quotes, sends job reminders, and nudges people who haven't paid. | Plumber | Check site | Medium | 6–8 hrs/wk | Source for Plumber Follow-Up Bot |
Costs and hours come from each tool’s own source. “Our estimate” is our guess from similar tools, not a measured number. The directory is free to search; prices come from each maker and change often.
Questions people ask
Can AI chase unpaid invoices for me?
Yes. Unpaid Invoice Reminder and Plumber Follow-Up Bot send payment reminders, and FreshBooks has late payment reminders. Check each tool's page for setup steps.
How much do these tools cost?
Of the 9 tools here, 4 show a price, 1 lists a free plan or free self-hosting next to a paid price, and 4 don't show a clear price in our listing. See the Cost column for each one. Prices come from each maker and change often, so check the maker's site before you buy.
Can I set one up myself?
5 of the 9 are marked Easy to set up. Unpaid Invoice Reminder, Invoice Data Entry Bot, and Plumber Follow-Up Bot are DIY automations you build yourself, with steps on each page.
How does BusyWorkBots pick these?
Every listing links to a real source, a case study, a builder's post, or the maker's page. Numbers from the company selling the tool are labeled as a maker or vendor claim. We don't test every tool.
