We buildAutomation · Billing & invoicing

Automation for billing and invoicing

n8nQuickBooks OnlineXeroStripePlaid bank feedGmail / Outlook
Who it is for

Who automated invoicing
is built for.

01 Owners who invoice and chase themselves

You send the invoices after hours and dread the “just checking in on payment” email.

02 Controllers, bookkeepers and AR specialists

You build invoices by hand from emails and spreadsheets and track due dates in an aging report.

03 CFOs watching DSO and cash flow

Receivables are the biggest number on the balance sheet and the least predictable.

04 B2B service companies and accounting firms

Agencies, contractors, IT services, wholesalers — and firms billing on behalf of their clients.

The problem

Why manual billing
costs more than it looks.

Numbers from the latest late-payments and invoice-processing studies — manual work is the main internal reason invoices are paid late.

of US small businesses have invoices overdue by 30+ days, up from 47% a year earlier.

Intuit QuickBooks, Small Business Late Payments Report 2026 ↗

in unpaid invoices sits on the books of the average small business.

Intuit QuickBooks, Small Business Late Payments Report 2026 ↗

of US B2B credit sales are paid late, and 5% of long-overdue invoices are written off as bad debt.

Atradius Payment Practices Barometer, North America 2025 ↗

of businesses have no fully automated payment process; manual work is the main internal cause of delays.

Intuit QuickBooks, Small Business Late Payments Report 2026 ↗

average cost to process one invoice, against $2.36 at the best teams (Ardent Partners).

average $10.18best in class $2.36
Medius, citing Ardent Partners ↗

average processing time for a PO invoice, against 1.4 days at the best teams (Ardent Partners).

average 11.6 daysbest in class 1.4 days
Medius, citing Ardent Partners ↗
Your numbersWhat does this cost you?

Put your monthly volume into the calculator and see hours and dollars.

What is automated invoicing?

Automated invoicing replaces the manual path from a finished job to money in the bank — tell accounting the work is done, build the invoice, send it, watch the due date, write the reminders, match the payment, update the aging report — with a workflow that does the routine steps on its own. In most small finance teams the delay is not the customer; it is the days between the job and the invoice and the reminders nobody has time to write, which is why most small businesses now carry invoices more than thirty days overdue.

We build accounts receivable automation around the tools you already use rather than a new platform. A closed deal, a finished job or a retainer schedule starts the run: the invoice is created in QuickBooks Online, Xero or Stripe with a pay-online link and sent from your address. Reminders go out before and after the due date, each written by a language model for that customer. Replies are classified, payments from the bank feed are matched and posted, and anything disputed or seriously overdue goes to a person with the whole history.

What changes when billing is automated

Automated invoices go out the day the work is done, reminders are consistent and polite, and cash application stops being a month-end chore. AR automation shortens the time to payment and gives you a daily picture of what is coming in — while discounts, write-offs and the call to a key customer stay with you.

The workflow

AR automation workflow:
12 nodes from deal to cash.

The run path of one invoice. Each invoice travels it on its own; anything unusual, disputed or seriously overdue stops and goes to a person.

Every node

Every node of the
billing workflow.

Bill
01Trigger

Deal won

A closed deal in HubSpot or Salesforce, a finished job in your time tracker, or a monthly retainer schedule starts a run.

02HTTP

Pull the billing details

Reads line items, rates, PO number and payment terms from the CRM, the project tool or your price list.

03IF

Standard invoice?

Invoices that match the contract and the price list go straight on; unusual amounts, new customers or missing POs stop for a check.

04HTTP

Create and send

Creates the invoice in QuickBooks Online, Xero or Stripe with a pay-online link — card or ACH — and emails it from your address.

Remind & match
05Loop

Reminder schedule

Three days before the due date, on the day, then +7, +14 and +30 — each with a different tone, in your name, from your mailbox.

06Model call

Personalise the note

A language model adapts each reminder to the customer, the amount and the history — no generic dunning text.

07Model call

Read the reply

Classifies answers — “paid”, “dispute”, “send a copy”, “need more time” — and routes each to the right next step.

08Code

Match payments

Bank feed via Plaid or your bank: payments matched to invoices by amount, reference and customer; partial and bundled payments handled by rules plus the model.

09HTTP

Post to the ledger

Records the payment against the invoice in QuickBooks or Xero and stops the reminders.

Escalate & report
10IF

30 days overdue?

Creates a task for the account manager in Slack or the CRM with the full history; at 60+ days flags for service pause or collections — a decision a person makes.

11Set

Disputes to a person

Disputed invoices are tagged, reminders paused and the thread handed to sales and finance together.

12Code

Daily AR digest

Aging report, expected receipts this week and the list of customers to call, posted every morning.

Before / after

Automated invoices:
before and after.

Typical minutes per invoice for a small finance team. Your own numbers go into the calculator below.

By hand19 minper item
  • Collect the work done or shipment details3 min
  • Build the invoice in QuickBooks or Xero4 min
  • Send it and confirm it arrived1.5 min
  • Watch the due date in the aging report1 min
  • Write the reminders and make the calls5 min
  • Match the payment to the invoice3 min
  • Update the AR report and cash forecast1.5 min
With the flow1.5 minper item, hands-on
  • Collect the work done or shipment detailsauto
  • Build the invoice in QuickBooks or Xero12 sec
  • Send it and confirm it arrivedauto
  • Watch the due date in the aging reportauto
  • Write the reminders and make the calls1 min
  • Match the payment to the invoice18 sec
  • Update the AR report and cash forecastauto
Your numbers

What AR automation
saves at your volume.

Based on 19 min by hand and 1.5 min with the flow per item, from the table above.

Every month0 hof hands-on work back
0 working days
$0 a month 0 a year 0 h instead of 0 h
You stay in control

Billing automated,
with you in control.

The flow bills, reminds, matches and reports. People keep every decision about a customer relationship and about money owed.

The flow does12 steps · every run
Deal won
flow
Pull the billing details
flow
Standard invoice?
flow
Create and send
flow
Reminder schedule
flow
Personalise the note
flow
Read the reply
flow
Match payments
flow
Post to the ledger
flow
30 days overdue?
flow
Disputes to a person
flow
Daily AR digest
flow
You decide6 steps · always a person
Disputes and claims

A disputed invoice pauses the reminders and goes to sales and finance together.

you
Discounts, instalments and write-offs

Any change to what is owed is a human decision.

you
Calls to key customers

Serious delays at important accounts get a call from a person, not a fifth email.

you
Credit limits and terms

Payment terms for new customers are approved by you before the first invoice.

you
Unusual invoices

Amounts outside the contract or price list are checked before they are sent.

you
Pausing service or collections

The flow flags the account; the decision stays with you.

you

Flip a switch to hand a step to the flow or take it back.

Connects to

Accounts receivable automation
for QuickBooks, Xero and more.

Results

What good AR looks like
and what we build toward.

Benchmarks from Intuit QuickBooks’ Small Business Late Payments Report 2026, Atradius’ Payment Practices Barometer and Tesorio customer data on DSO after accounts receivable automation.

0 days
average DSO reduction after AR automation (Tesorio customer data)
0 x
collections productivity at the same customers after automation
0%
of small businesses carry 30+ day overdue invoices — the baseline (QuickBooks, 2026)
How we work

How a billing automation project
runs, week by week.

Week 1Audit

We map the process as it runs today, count the minutes and agree what the flow must never do on its own.

Weeks 2–3Prototype

A working flow on your real data, in a sandbox. You see every run and every exception.

Weeks 3–6Launch

Edge cases, approvals and alerts, then the switch-over — with the old way kept as a fallback.

AfterSupport

Monitoring, fixes when a vendor changes a format, and a monthly report of hours saved.

FAQ

Automated invoicing questions
we hear every time.

Can automated invoicing create invoices straight from our CRM or time tracker?

Yes. A closed deal in HubSpot or Salesforce, a finished job in your project tool or a retainer schedule starts the run, and the invoice is created in QuickBooks Online, Xero or Stripe with the line items and terms from the record. Unusual invoices stop for a check first.

Will automated reminders annoy customers or damage relationships?

The reminders go out in your name, from your mailbox, on a schedule you set, and a language model writes each one for that customer and that history. Disputes pause the sequence immediately, and serious delays at key accounts go to a person for a call.

Does accounts receivable automation work with QuickBooks Online and Xero, or do we have to switch?

It works with what you have. The flow creates invoices and posts payments through the QuickBooks Online and Xero APIs; NetSuite, FreshBooks, Zoho Invoice and Stripe are supported too. Your chart of accounts and numbering stay the same.

Can payments be matched to invoices automatically?

Yes. The bank feed arrives via Plaid or your bank, and payments are matched by amount, reference and customer. Partial and bundled payments are handled by rules plus the model; anything still unclear is listed for a bookkeeper rather than guessed.

What if the automation issues a wrong invoice?

Invoices are built from the contract and price list, and anything that differs is held for a person before sending. Every invoice links back to its source record, so a mistake is traced and corrected in minutes — and the first weeks run with a review step on every invoice.

Is it safe to give the flow access to our books and bank?

Access is through official APIs with the narrowest scopes needed: create invoices, read payments, post receipts. The bank feed is read-only. The flow runs on your server or in your cloud account, and every action is logged.

How does AR automation affect DSO and cash flow, and is it worth it at our volume?

Faster invoicing and consistent reminders shorten the time to payment; vendor customer data shows DSO falling by weeks. Put your invoice count into the calculator above — at a few hundred invoices a month the time alone usually pays for the project, and at low volumes a simple tool may be enough.

Also automated

More flows
next door.

Available for new projects

Still doing this
by hand?

Describe it in two sentences — we reply within a day with a workflow sketch.

hello@wireclad.com →