Online billing software for small businesses in Australia

Published Monday 15 June 2026

Table of contents

• What is online billing software?
• Benefits of online billing software
• Types of billing software
• Key features to look for in billing software
• How to choose billing software for your business
• Create online invoices and eInvoices
• Invoice accounting and tax prep
• Streamline your billing with Xero
• FAQs on billing software

Key takeaways

• Online billing software replaces manual invoicing with cloud-based tools that let you create, send, and track invoices from any device, saving time and reducing errors.
• Australian small businesses using billing software were paid in an average of 23.9 days in the December quarter of 2025, the fastest result since tracking began in 2017.
• Key features to look for include professional templates, multiple payment methods, mobile invoicing, eInvoicing, automatic reconciliation, and outstanding invoice tracking.
• Choosing the right billing software means evaluating your business needs, checking integrations, assessing usability, verifying security, and considering cost.

What is online billing software?

Online billing software is a cloud-based tool that helps you create, send, and track invoices from any device with internet access. It replaces manual invoicing methods like Word documents, Excel spreadsheets, or paper invoices with a streamlined digital workflow.

This shift matters. Of the 1.2 billion invoices exchanged in Australia annually, around 90 per cent of invoice processing is still partly or fully manual. That means most businesses are spending valuable time on tasks that billing software can handle automatically.

The basic workflow is straightforward:

1. Create an invoice using a professional template.
2. Send it to your customer electronically.
3. Receive payment through integrated payment options.
4. Record the transaction automatically in your accounts.

Unlike desktop software installed on a single computer, cloud-based billing software stores your data securely online. You can access it from your laptop, phone, or tablet, wherever you are.

Benefits of online billing software

Switching from manual invoicing to billing software delivers measurable improvements to your business operations. Here are the key benefits you can expect:

• Save time by creating invoices in minutes instead of manually formatting documents
• Reduce errors by eliminating manual data entry mistakes with automatic calculations
• Improve cash flow visibility by seeing outstanding invoices and payment status in real time
• Look professional with branded templates that build customer trust
• Simplify tax time by keeping accurate records that sync with your accounting
• Work from anywhere by accessing invoices from your phone, tablet, or laptop
• Scale easily by handling more invoices as your business grows without extra admin

These benefits add up. Businesses using eInvoicing can reduce processing costs from up to $30 down to less than $10 per invoice. And according to Xero Small Business Insights, Australian small businesses were paid in an average of 23.9 days in the December quarter of 2025; the fastest quarterly result since tracking began in 2017.

Types of billing software

Not all billing software works the same way. The right type depends on how your business charges customers. Here are the 4 main types to consider:

• Subscription billing: designed for businesses that charge recurring fees on a regular schedule, such as monthly or annual memberships, software subscriptions, or retainer agreements
• Time-based billing: suited to professionals who charge by the hour, such as consultants, lawyers, or freelancers, with built-in time tracking that converts logged hours into invoices
• Project-based billing: ideal for businesses that quote and invoice per project, such as construction firms, agencies, or tradespeople, allowing you to track costs against a fixed project budget
• Usage-based billing: built for businesses that charge based on consumption, such as utilities, cloud services, or pay-per-use models, where invoice amounts vary each billing cycle

Many billing platforms support more than 1 of these models. Whichever type you choose, setting clear payment terms is essential for getting paid on time. When evaluating software, consider which billing type matches how you charge your customers today and how you might charge them in the future.

Key features to look for in billing software

The best billing software does more than send invoices. Look for features that save you time, help you get paid sooner, and keep your records accurate. Here are the features that matter most for small businesses:

• Professional templates: customisable invoice templates that include your logo, brand colours, and the 7 details required by the Australian Taxation Office (ATO) for sales under $1,000
• Multiple payment methods: integrated options like credit cards, direct debit, digital wallets, and bank transfers that make it easy for customers to pay the way they prefer
• Mobile invoicing: a mobile app that lets you create and send invoices from your phone or tablet, so you can bill customers on-site as soon as a job is done
• eInvoicing: direct delivery of invoices into your customer's accounting software using the Peppol framework, Australia's government-mandated eInvoicing standard, for faster approval and payment
• Quote-to-invoice conversion: the ability to turn accepted quotes into invoices automatically, removing double handling and reducing the gap between closing a deal and getting paid
• Automatic reconciliation: software that connects to your bank account and matches incoming payments to the correct invoices without manual checking
• Outstanding invoice tracking: real-time visibility over who owes you money, which invoices are overdue, and where to focus your follow-up efforts

Getting paid on time is a common challenge. Xero Small Business Insights data from the December quarter of 2025 shows that while the national average late payment fell to 6.6 days (the second lowest on record), some industries still face longer delays. Education and training invoices were paid an average of 9.9 days late, while wholesale trade and manufacturing both exceeded 8.7 days. Features like automated reminders and outstanding invoice tracking can help you reduce payment delays and stay on top of overdue invoices.

How to choose billing software for your business

With many billing software options available, choosing the right one comes down to matching the software to your specific business needs. Here are 5 key considerations:

1. Evaluate your business needs: start by listing what you need from billing software. Consider how many invoices you send each month, whether you bill on a recurring or project basis, and which payment methods your customers prefer.
2. Check integrations: look for software that connects with the tools you already use, such as your bank, payment gateway, or accounting software. Tight integrations reduce manual data entry and keep your records accurate.
3. Assess usability: choose software that's intuitive enough for you to use without extensive training. A clean interface, helpful onboarding, and responsive support make a big difference when you're getting started.
4. Verify security: your billing software handles sensitive financial data. Look for features like bank-level encryption, secure data centres, regular backups, and compliance with Australian data protection standards.
5. Consider cost: compare pricing plans based on the features you actually need. Many providers offer tiered plans, so you can start with a basic package and upgrade as your business grows.

Taking time to evaluate these factors helps you avoid switching costs later and ensures the software grows with your business.

Create online invoices and eInvoices

How you deliver invoices affects how quickly you get paid. Digital invoice delivery replaces email attachments with faster, more trackable methods.

Australian businesses have several delivery options to choose from:

• Online invoices: send customers a secure link to view and pay invoices online, with read receipts showing when they've been viewed
• eInvoices: deliver invoices directly into your customer's accounting software using the Peppol framework, Australia's government-mandated eInvoicing standard
• Email invoices: send invoices as PDF attachments or inline email for customers who prefer traditional delivery

eInvoicing is particularly relevant for Australian small businesses. The Peppol framework removes the need for PDF attachments or manual data entry on the receiving end. Your customer's software receives the invoice data directly, which speeds up approval and payment. As more businesses and government agencies adopt eInvoicing, having billing software that supports the Peppol network positions you to take advantage of faster payment cycles.

Invoice accounting and tax prep

Integrated invoicing and accounting keeps your financial records accurate without double handling. When your billing software connects to your accounting, every invoice you send is automatically recorded in your financial accounts.

Your records update in real time when:

• you send an invoice
• a customer makes a payment
• an invoice becomes overdue

This real-time connection makes it easier to securely keep financial records for the period required by law (7 years for companies under ASIC rules, or 5 years for most other businesses under ATO requirements). It also simplifies Goods and Services Tax (GST) reporting and tax preparation, because your income data is already organised and up to date when it's time to lodge with the ATO.

Rather than scrambling to gather invoices and receipts at tax time, you'll have a complete, accurate record of your revenue ready to share with your accountant or bookkeeper.

Streamline your billing with Xero

Billing doesn't have to be a time-consuming part of running your business. With Xero's invoicing software, you can create professional invoices, automate payment reminders, and track outstanding payments from your desktop or mobile app. Xero customers who use online invoice payments get paid up to twice as fast. Get one month free.

FAQs on billing software

Here are answers to frequently asked questions about billing software.

What is the difference between billing software and accounting software?

Billing software focuses specifically on creating, sending, and tracking invoices. Accounting software covers broader financial management including expenses, bank reconciliation, payroll, and financial reporting. Many modern platforms combine both, so your invoicing data flows directly into your accounts.

How secure is online billing software?

Reputable billing software uses bank-level encryption and stores your data in secure data centres with regular backups. For most small businesses, this is more secure than paper records or files stored on a single computer.

What are the different types of billing systems?

The 4 main types are subscription, time-based, project-based, and usage-based billing. If you're unsure which fits your business, consider how you charge customers today: recurring fees point to subscription billing, while one-off jobs suit project-based billing.

How much does billing software cost in Australia?

Pricing varies depending on features and the number of invoices you send. Many providers offer tiered plans, with some starting from around $30 per month and scaling based on features and invoice volume. Billing features are often included in broader accounting software packages.

Can billing software help with GST and tax compliance?

Yes. Billing software that integrates with your accounting automatically records invoice data for GST reporting and tax preparation. It helps you maintain accurate records for ATO requirements and simplifies lodgement at tax time.

How do I choose the right billing software for my business?

Start with a free trial before committing to any platform, and ask your accountant or bookkeeper for their recommendation. Switching billing software later can be disruptive, so it's worth testing how the software handles your real invoicing workflow before you sign up.