Invoice Software for Small Business

A repeatable billing system as the invoice list grows.

Once a small business sends more than the occasional invoice, isolated PDFs stop working: numbering drifts, clients get retyped, and nobody is quite sure which invoices are still unpaid. InvoiceSonic is invoicing software built for small business owners who need a proper system — saved clients, sequential invoice numbers, payment tracking, recurring billing and automatic payment reminders — while keeping the quick builder that made the first invoice easy. It runs in the browser and on a mobile device, and it never takes a percentage of your payments.

Online invoicing software · Client and invoice records · No transaction percentage · Free to start

Focused software, clean handoff — Run invoicing here and keep payroll, reconciliation or tax work in the accounting process that already suits your business. Most small businesses need a billing system long before they need a general ledger.

Create your invoice here — free

Enter the actual job details, review the totals and preview your invoice. You can start without an account. Downloads follow the free-tool limits; saving, tracked sending and reminders are available with an account.

Create your invoice online

Your business
Bill to (client)
Invoice details
Line items
Description Qty Unit price Tax %
Totals
Payment details
Notes
Open interactive editor

What you get

An organised invoice register

Every invoice keeps its number, issue date, due date, total and payment status together, so monthly volume grows without a spreadsheet on the side. Draft, sent, viewed, paid and overdue invoices are visible at a glance.

Reusable client and service records

Select an existing client and regular services instead of copying details from last month's PDF. Clients, addresses, tax numbers and common line items are saved once and reused every time.

Tax and totals calculated consistently

Quantities, rates, discounts, deposits and tax — GST, VAT or sales tax — calculate before the invoice leaves the business, so invoice totals are right the first time.

Recurring billing on a schedule

Automate regular customer invoices weekly, fortnightly or monthly instead of relying on a calendar reminder. Retainers, maintenance contracts and subscriptions bill themselves.

Automatic payment reminders

Late payments are the single biggest cash flow drag on small businesses. InvoiceSonic tracks due dates, shows you which invoices are overdue and sends scheduled reminders for balances that remain unpaid.

Online payments without a processor's cut

Put bank transfer, PayID, Venmo, Zelle, Cash App or PayPal on the invoice and clients pay directly — including by credit card through those services — with no percentage taken by InvoiceSonic.

Works on a mobile device and the desktop

Create an invoice on the iPhone and iPad app at the job and review it from a laptop later through the same account. Nothing needs moving between devices.

Clean records for your bookkeeper

Professional PDF invoices and an organised client list keep your bookkeeping workflow simple at tax time, whichever accounting software your accountant prefers.

How it works

  1. 1

    Standardise the invoice settings

    Set numbering, business details, logo, tax treatment, payment instructions and default terms once.

  2. 2

    Build a reusable client workflow

    Save clients and common services, then create each invoice from accurate existing data in a few clicks.

  3. 3

    Review outstanding invoices regularly

    Use payment status and due dates to focus follow-up on money the business is actually waiting for — and let reminders do the chasing.

Create the first invoice in your new workflow

Start free, then save the records and automation when the business needs them.

Create a business invoice

Frequently asked questions

What is invoice software for small business?

It is a system for creating, sending, recording and collecting invoices. Unlike a standalone template or generator, invoicing software keeps client details, invoice numbers, due dates and payment status together, and it can send recurring invoices and automatic payment reminders on your behalf.

Is invoicing software the same as accounting software?

No. Invoicing software focuses on billing and receivables — the money coming in. Accounting software usually adds a general ledger, bank reconciliation, expenses, payroll, inventory and financial reports. Many small business owners run focused invoicing software and hand clean records to a bookkeeper or accounting package for the rest.

How does InvoiceSonic compare with Zoho Invoice, Wave or Square?

Zoho Invoice has a generous free tier with more setup and the wider Zoho ecosystem. Wave bundles free accounting for US and Canadian businesses but earns from its own card processing. Square Invoices is excellent if you already take card payments through Square, at a percentage per payment. InvoiceSonic is the lighter option: no-signup first invoice, native iPhone app, and no cut of your payments.

When should a business move beyond templates?

Move when repeat typing, inconsistent numbering, lost PDFs or missed follow-ups cost more time than a simple saved system would. Even a few recurring clients usually justify the change.

Can InvoiceSonic automate monthly invoices?

Yes. Pro supports recurring schedules for regular billing and automatic reminders when invoices become overdue, for A$19/month. The free plan covers up to three invoices a month.

Does InvoiceSonic charge a percentage of invoices?

No. InvoiceSonic does not take a percentage for putting bank transfer or supported payment details on the invoice. Any separate card or payment provider your client uses can still apply its own fees.