How to Track Unpaid Invoices and Receivables in a Small HVAC Business
In a small HVAC business, money usually slips through two gaps: the receipt you hand over at the site and the invoice that never gets chased back at the office. R-Pro closes both with two powerful tools that share one workflow — a field app for the technician on site and an office ERP for the books — so every job you finish turns into an invoice you can actually follow until it's paid.
Capture the charge the moment the job is done — in the field
- Issue a receipt on site the second the repair is finished, so the customer knows exactly what they owe before you leave the property — no "I'll send it later" that turns into a forgotten charge.
- Scan the equipment nameplate and any parts receipts; R-Pro auto-fills the details, so the model, the part, and the cost are attached to the job instead of living on a scrap of paper in your van.
- Every charge is logged under that customer's service history, so when you arrive for the next call you already see what was billed last time and whether it was ever settled.
- Drop a quick voice memo ("agreed to pay on the 15th, owner is Mr. Lee") and it stays with the job — the payment promise is recorded, not lost in your head.
- All of this works fully offline, so a basement plant room with no signal never stops you from capturing what the customer owes.
Turn jobs into invoices and watch the receivables — at the office
- Convert any completed job into an invoice or tax invoice in the office ERP, with your own country's tax name and rate (VAT, GST, sales tax) set exactly the way your authority expects.
- The customer ledger shows each client's running balance — what was invoiced, what's been paid, and what's still outstanding — so you can see at a glance who owes you and how much.
- Accounting separates sales, purchases, and expenses into net profit, so an unpaid invoice shows up as money owed to you, not as cash you can spend.
- Reports let you pull an aging view of receivables — newest bills versus the ones that have been sitting too long — so you know exactly which customers to call first.
- Because quotes, invoices, suppliers, and inventory all live in one ERP, the price you quoted, the parts you used, and the amount you billed line up, leaving no gap for a charge to disappear.
Field and office, together — no double entry, nothing falls through
- The receipt and charges you capture in the field flow straight into the office books automatically — you never re-type a job at the desk, which is exactly where charges get dropped or mistyped.
- Because both tools share one record, a job marked done in the field becomes a receivable the office can track the same day — not weeks later when you finally "do the paperwork."
- If a customer disputes a bill, you can trace it back from the office invoice to the field service history, the nameplate scan, and the voice memo — the full evidence trail in one place.
- One subscription, one customer list: the technician and the owner are looking at the same data, so a payment marked received in the office instantly clears off the field history too.
- Field and office work as two equal halves of the same workflow — capture in the field, track and chase in the office — so unpaid invoices have nowhere to hide.
Stop losing money on invoices you forgot to chase
R-Pro pairs a field app and an office ERP as two equal tools in one workflow: capture the charge on site, then track every receivable in the books until it's paid. One subscription, field and office together.
Get R-Pro →FAQ
Is R-Pro a field app or an office program?
It's both, and they carry equal weight. The field app handles AI fault diagnosis, nameplate and receipt scanning, voice memos, per-customer history, and on-site receipts — fully offline. The office ERP handles quotes, invoices and tax invoices, accounting, inventory, suppliers, and the customer ledger. They share one workflow, so the charge you capture in the field becomes a receivable the office can track, with no double entry.
Can I set my own country's tax on invoices?
Yes. The ERP lets you set your own tax name and rate — VAT, GST, or sales tax — so invoices and tax invoices come out the way your tax authority expects, not locked to one country's format. Both the field app and the office ERP are available in 10 languages.
How does R-Pro help me actually see which invoices are overdue?
The customer ledger shows each client's outstanding balance, and reports give you an aging view of receivables — separating fresh bills from ones that have been unpaid too long. Because finished jobs flow from the field straight into invoices, nothing sits uninvoiced, so the overdue list you see is complete.
What if I finish a job somewhere with no internet?
The field app works fully offline, so you still issue the receipt, scan the nameplate, and log the charge on site. Once you're back in range it syncs into the office ERP automatically, where it becomes a trackable receivable — you never lose a charge to a dead signal.