Key takeaways
Fifty-nine percent of small businesses are currently dealing with invoices that are overdue by 30 days or more, leaving them with an average of US$17.7K in unpaid revenue.1
Most invoicing platforms can generate a professional invoice and take a card payment, but few automate recurring billing, local tax calculation, and ledger sync in one place, which is where the gap between a basic tool and a full billing platform shows up.
Airwallex Invoicing stands out among the seven platforms below by settling international invoices like-for-like in over 20 currencies directly into a multi-currency wallet, avoiding the forced FX conversion that erodes margins on cross-border payments.
Modern invoicing has moved beyond static PDFs toward consolidated platforms that automate recurring subscriptions, manage cross-border compliance, and support multi-currency settlements more efficiently. Choosing the right software is essential to establishing an automated cash flow cycle and avoiding manual bookkeeping errors. This guide reviews the seven top invoicing and billing software solutions to help businesses identify the best fit for their operational needs.
Best invoicing and billing software at a glance
Software | Starting Price | Standout Feature |
|---|---|---|
Airwallex | Free (basic) | "Like-for-like" local currency settlements (zero FX friction) |
FreshBooks | US$23 / mo | Collaborative client portal with time tracking & retainers |
QuickBooks Online | ~US$38 / mo | Massive accountant network & turn-key tax readiness |
Zoho Invoice | 100% Free | Dedicated client portals & automated billing at no cost |
Square Invoices | Free (+ processing) | Instant text (SMS) & QR-code billing synced directly to POS |
Xero | US$27 / mo | Unlimited user seats on every plan (no per-user fees) |
Salesforce Billing | Custom | Native ASC 606 / IFRS 15 revenue recognition compliance |
Why modern finance teams need consolidated invoicing and billing software
Finance teams have relied on fragmented processes for years, generating invoices in one app, processing payments through a gateway, and manually reconciling data in a third system. This disjointed setup creates significant operational risks, including data entry errors, delayed collections, and poor cash flow visibility. Without a unified system, teams struggle to maintain accurate financial records while managing complex customer interactions.
Consolidated invoicing and billing software bridges these gaps by linking customer profiles directly to payment gateways and accounting ledgers. These modern invoice processing platforms automate repetitive tasks like sending payment reminders and updating journals, which keeps records accurate in real time and sharpens forecasting. Adopting an integrated billing ecosystem has become increasingly important for scaling operations without increasing administrative headcount.
The best invoicing and billing software solutions
Airwallex Invoicing
Ideal for
Growing, cross-border businesses that invoice international customers and want local collection plus like-for-like settlement.
Our take
Airwallex Invoicing is a strong option for businesses managing international invoicing and collections. Airwallex Invoicing works best as part of Airwallex’s broader financial platform. Businesses can set up local bank details in over 20 currencies, issue invoices to clients worldwide, and have them pay into local accounts. This can help businesses reduce unnecessary FX conversion costs in cross-border transactions.
Pros
True "like-for-like" multi-currency settlement in 20+ currencies.
FX at 0.5% to 1% above interbank rates.
Free basic one-off invoicing templates.
Cons
Syncs with the ledger a business already uses, such as QuickBooks or Xero.
Built for businesses that invoice across borders and currencies.
Standout feature
Like-for-like settlement: For example, a US business using a Euro Airwallex wallet can bill and keep payments in Euros, skipping forced USD conversions. This guide to multi-currency wallets explains how they help businesses hold and use funds across currencies more efficiently.
Pricing
Basic Invoicing: Free.
Subscription & Usage-Based Billing: 0.50% fee per successful transaction.
Domestic Cards: 2.80% + US$0.30 per transaction.
International Cards: 4.30% + US$0.30 per transaction.
App: iOS/Android
Mobile apps are available for iOS and Android, but no dedicated invoicing app; manage invoicing via the web app or API.
FreshBooks
Ideal for
Freelancers, service-based businesses, and agencies that require robust time-tracking alongside client billing.
Our take
Users know FreshBooks for an easy-to-use interface and strong client billing workflows. It focuses heavily on client management, making it incredibly easy to track hours, attach them to projects, convert them to customized invoices, and collect card payments through an integrated checkout.
Pros
User-friendly client portal.
Smooth project management, expense logging, and time tracking.
Highly customizable invoice templates.
Cons
Strict limits on billable clients on lower plans (Lite caps clients at five, Plus at 50).
Each additional team member carries an extra monthly cost, which can get expensive for growing teams.
Standout feature
Collaborative client portal: Clients can log in to view invoices, make payments, and collaborate through client-facing features, while businesses track time and convert billable hours into invoices.
Pricing
Lite: US$23/month (up to five clients).
Plus: US$43/month (up to 50 clients).
Premium: US$70/month (unlimited clients).
Select: Custom pricing.
App: iOS/Android
Yes, mobile apps are available on iOS and Android.
QuickBooks Online
Ideal for
Businesses requiring a unified invoicing tool and a robust, double-entry bookkeeping system.
Our take
QuickBooks Online is one of the most widely used accounting platforms. While its recurring price hikes have drawn frustration from users, it offers a broad feature set. QuickBooks handles everything from inventory tracking and project profitability to basic invoicing and automated VAT/sales tax calculations.
Pros
Complete, audit-ready double-entry accounting engine.
Wide range of third-party integrations across payroll, payments, and industry-specific apps.
Virtually every professional accountant knows QBO.
Cons
Frequent pricing increases make it one of the most expensive platforms on the market.
Customer support can be sluggish and heavily reliant on automated chat bots.
Standout feature
Automated sales tax engine: Automatically calculates exact municipal and state-level sales taxes on invoices based on the customer's shipping address, taking the guesswork out of compliance.
Pricing
Solopreneur: US$20/month.
Simple Start: US$38/month.
Essentials: US$85/month.
Plus: US$140/month.
Advanced: US$340/month.
App: iOS/Android
Yes, mobile apps are available on iOS and Android, though some features remain web-only.
Zoho Invoice
Ideal for
Freelancers and budget-conscious businesses that want a premium, professional invoicing tool without a recurring monthly subscription.
Our take
Zoho Invoice stands out as a free invoicing tool that still includes many core invoicing features. It provides professional invoice customization, automated payment reminders, a customer portal, and time-tracking features that competitors charge dozens of dollars a month for.
Pros
Free subscription with no hidden charges.
Generous client portals and automatic payment notifications.
Integrates directly with standard payment gateways.
Cons
It is not a complete double-entry accounting software (requires upgrading to Zoho Books or exporting data).
Annual usage limits apply on invoice volume.
Standout feature
Free client portal: Allows clients to view invoice history and make payments in a professional, branded space.
Pricing
Free: US$0/month (subject to an annual cap on invoice volume).
App: iOS/Android
Yes, native apps are available for iOS and Android.
Square Invoices
Ideal for
Omnichannel businesses, retail merchants, and contractors who already use Square hardware or need to request payments via text and QR codes.
Our take
Square Invoices is a practical option for businesses that operate both in-person and online. It sits straight inside the Square dashboard, allowing businesses to quickly send professional, digital invoices to clients. Recent payment processing rate hikes have made the Free plan significantly more expensive for online transactions.
Pros
Ultra-fast setup with direct integration to Square POS hardware.
Flexible delivery options, including SMS, WhatsApp, and QR codes.
Instant funds options to keep cash flowing quickly.
Cons
High online processing fees on the Free plan (3.3% + US$0.30 per card transaction).
Risk of automated compliance holds on large, sudden transactions.
Standout feature
Multi-channel invoice delivery: Send invoices via email, SMS, or a shareable payment link so customers can pay quickly on their phones.
Pricing
Square Free: US$0/month (3.3% + US$0.30 per online/invoice transaction).
Square Plus: US$49/month per location (lowers online card rate to 2.9% + US$0.30 and caps ACH fees at US$10).
Square Premium: US$149/month per location.
App: iOS/Android
Yes, a dedicated Square Invoices app is available on both iOS and Android.
Xero
Ideal for
Growing, collaborative teams that want a modern, cloud-based alternative to QuickBooks.
Our take
Xero has steadily gained ground as a sleek, reliable accounting engine. Unlike QuickBooks, which restricts user seats on lower plans, Xero lets businesses invite unlimited users on all plans. Its invoicing tool is crisp, fast, and integrates with hundreds of add-on apps, making it highly customizable.
Pros
Unlimited user seats included across all tiers.
Exceptional, clean bank reconciliation interface.
Strong multi-currency capabilities on the Established tier.
Cons
The entry-level "Early" tier heavily limits monthly invoice volume.
Lacks built-in payroll in many markets, requiring third-party integrations like Gusto.
Standout feature
Smart Document Capture: Xero includes Smart Document Capture on all plans, which scans and parses bills and matches them to bank transactions and invoice files.
Pricing
Early: US$27/month.
Growing: US$59/month.
Established: US$97/month.
App: iOS/Android
Yes, separate "Xero Accounting" and "Xero Projects" apps are available on iOS and Android.
Salesforce Billing
Ideal for
Businesses with complex B2B contracts and high-volume subscription billing that run on the Salesforce ecosystem.
Our take
Part of Salesforce Revenue Cloud, this is a platform designed for complex "quote-to-cash" cycles. It is not a tool for small businesses. Salesforce Billing connects sales quotes (CPQ) to contracts, ongoing subscriptions, consumption-based billing models, and automated revenue recognition, all in one system.
Pros
Strong automation for complex hybrid billing (e.g., subscription + usage).
Automates ASC 606 and IFRS 15 compliance.
Unifies sales, finance, and operations teams on a single data source.
Cons
Expensive and implementation-heavy, requiring a lengthy, professional rollout.
Likely too complex for many small and mid-sized businesses.
Standout feature
ASC 606 automated compliance: Automatically recognizes and deferred-tracks revenue as the business renders services across complex, multi-year, multi-element B2B contracts.
Pricing
Revenue Cloud costs US$150 per user per month on the Growth edition and US$200 on Advanced, with an annual contract.
App: iOS/Android
Accessible on mobile via the core Salesforce Mobile App on iOS and Android.
Methodology for choosing the best invoicing and billing software
To evaluate the best invoicing software, this guide assessed platforms across five major criteria:
How easy is it for a business to set up the software, customize templates, and scale up as their client base grows?
Does the software support multiple currencies, provide localized payment gateways, and avoid punishing businesses with steep FX markup rates?
Can the system automate recurring payments, handle automated retry (dunning) attempts, and send customized invoice alerts?
Does it sync in real time with major general ledgers or act as a double-entry ledger itself?
Does the platform offer transparent billing, or are there hidden fees (like team member add-on costs or excessive processing markups)?
Key features of invoicing and billing software to look for
Real-time payment tracking and cash flow visibility
Finance teams shouldn't have to wait until the weekly bank reconciliation to know who has paid. A strong invoicing platform provides a dashboard displaying when a customer received, opened, and paid an invoice. This level of tracking gives finance teams precise cash flow forecasting and takes the guesswork out of collections.
Integrated multi-currency payment gateways
Businesses that operate internationally need checkout links that show local payment options (e.g., SEPA in Europe, ACH in the US, Pix in Brazil) alongside standard credit card options. Platforms with integrated payment gateways let clients pay via their preferred local methods, which speeds up settlement times.
Automated invoicing and recurring billing workflows
Manually drafting and sending invoices every month drains operational efficiency. The right software can run scheduled billing, process saved credit cards automatically, manage mid-cycle upgrades or downgrades, and trigger automated emails if a card payment fails.
Multi-currency support and cross-border settlements
Receiving international payments through wire transfers or basic processors adds conversion and intermediary costs to each invoice. Platforms differ sharply on this point: Airwallex's BILL invoicing vs Airwallex invoicing comparison shows what happens to a euro invoice on a platform that converts on arrival versus one that holds the currency. The right software supports multi-currency accounts, lets businesses receive money on local rails, and keeps funds in their original currencies so they can pay international suppliers directly.
Frequently asked questions about invoicing and billing software solutions
What is the difference between simple invoice generation and full billing and subscription management?
Simple invoice generation is a transaction-by-transaction process: the business writes a one-off invoice, sends a PDF, and records the payment once. Full billing and subscription management handles complex recurring triggers. It automatically schedules charges, manages tiered or usage-based invoicing pricing, handles mid-billing-cycle upgrades, and uses automated payment retries to prevent customer churn.
How do automated workflows proactively prevent late payments before an invoice is overdue?
Automated workflows don't just email customers when they are late; they engage beforehand. The strongest billing platforms send a reminder a few days before the invoice is due, prompt the client to update expiring credit cards, and include a custom, click-to-pay checkout link in the notification.
Can businesses settle international invoices instantly and in local currencies without forced conversions?
Yes, but only if the business uses a financial platform with local collection infrastructure. Solutions like Airwallex Invoicing provide local bank details worldwide, letting European customers pay via local SEPA transfers into a Euro wallet. The funds sit in Euros in the account, entirely bypassing forced conversions and expensive international wire fees.
How does integrated invoicing software simplify international tax compliance and VAT invoicing?
Modern platforms automatically check the customer's tax status and geographical location when generating an invoice. They calculate the correct local VAT, GST, or US sales tax in real time, apply it to the subtotal, and produce a fully tax-compliant PDF receipt that meets strict local regulatory standards.
Do these platforms sync directly with accounting software like QuickBooks, Xero, and NetSuite?
Yes, most leading invoicing platforms feature native integrations that sync payments, invoices, and refunds directly to the core general ledger.
Sources
https://quickbooks.intuit.com/r/small-business-data/small-business-late-payments-report-2026/
The material presented here is for informational purposes only and does not constitute legal, regulatory, taxation, or investment advice. Readers should engage their own advisors or counsel for advice unique to their circumstances.
Fatima Puri
Fintech & Payments Writer - AMER
Fatima is a business finance writer at Airwallex, where she covers the products and processes that help US businesses move and manage money across borders. She writes about payments, financial operations, and the practical realities of scaling internationally, drawing on over a decade of experience covering B2B technology. Fatima's goal is to write about complex financial infrastructure in a way that the people responsible for it can actually use.
