A lot of Bonnie.
A little overhead.
Free plan available.
The water heater, the fittings, the extra supply run. Bonnie is bookkeeping software for plumbers that brings bank transactions, receipts, and job costs together. Track your business expenses and see where the money went, job by job.

Free plan available.
Store documents for safe keeping.
We don’t cut corners on security.
Coming soon to iOS
You didn’t start a business to become a bookkeeper. Ask Bonnie, your AI bookkeeping assistant, to help with your transactions, customer documents, and questions about your books.
Service calls in the morning. A water heater after lunch. A repipe that spans the week. From the first supply run to the final bill, keep the costs behind each job in view, even when the next call is already coming in.
A place for every pieceOne supply run, three jobs. Keep your plumbing receipts in one place and split the expense so each job gets its share of the cost.
✓ All $480 assigned. Every dollar has a job.
Track plumbing job costs against your budget. See the expenses assigned to each job and explore the details behind the total.
$6,600 of the budget remains unassigned.
Create plumbing quotes, share a customer link and PIN, and prepare a branded invoice. Keep the customer and job details together.
Marisol Ortega
Maple St water heater replacement
Share a customer link and PIN for acceptance.
Review business expenses from the same vendor together. Choose a bookkeeping category once, and save a rule for future charges.
Keep managing appointments and dispatch in the app you already use. Bonnie handles the books behind the work.
Connect your business bank and cards, or upload statements.
Answer Bonnie’s questions. Categorization rules are saved automatically.
Assign transactions to jobs, then open your reports to see where you stand.
Bonnie is bookkeeping software for plumbing businesses. It brings bank transactions, receipt storage, job cost tracking, quotes, invoices, and financial reports together. You review uncertain transactions and assign income and expenses to jobs.
Ask Bonnie helps you categorize vendor transactions, update vendor rules, add customers, and prepare quote or invoice drafts. You can also ask questions about your books. Review the proposed details before confirming a change. Try the sample conversations above, or explore the live bookkeeping demo.
Create a job and assign its related income and expenses. The job page shows expected revenue, cost budget, and assigned activity. Filter the profit and loss by that job to review actual results. The picture depends on assigning the relevant transactions, including costs paid later.
Split the supply-house transaction across the jobs it belongs to. Each plumbing job gets its share of the expense, while the receipt stays attached to the original transaction.
Keep the tools you use for appointments and dispatch. Bonnie supports the bookkeeping behind the work. Using the tools alongside each other does not imply a direct integration.
Export reports as CSV files, or print and save them as PDFs. Your books also include transaction details and an audit history. This workflow uses exports; a separate accountant login is not included.
Yes. Use the phone-optimized dashboard in your browser, including uploading receipt photos. The native iOS app is coming soon.
Your next job has enough moving parts