Best AI Invoicing Software: 10 Tools to Get Paid Faster

The best AI invoicing software for most freelancers and small businesses in 2026 is FreshBooks. It sends clean invoices, chases late clients with automatic reminders and takes card payments online. Lite costs about $23 a month.

If you want full accounting, pick QuickBooks Online or Xero. If you want free, pick Zoho Invoice or Wave. Freelancers who also send proposals should look at Bonsai. Prices were checked in October 2026.

What Is AI Invoicing Software?

AI invoicing software creates and sends invoices for you, then helps you collect the money. It turns time, projects or products into a bill and tracks it until the client pays.

Older invoice tools were just templates. Newer ones add automation and AI on top. Common features include:

• Invoices built from tracked time, expenses or a saved item list
• Automatic payment reminders before and after the due date
• Online payment by card or bank transfer from the invoice itself
• Recurring invoices for retainers and subscriptions
• AI helpers that draft invoice text, suggest items or flag overdue clients

This article covers the money coming in. For bills you pay to vendors, see our sister guide to the best AI accounts payable software. For the wider set of tools, visit our hub of AI finance tools.

Quick Comparison: 10 Best AI Invoicing Software

FreshBooks is our top pick overall, followed by QuickBooks Online and Xero. Here is how all 10 compare on best use, starting price and integrations. Prices were checked in October 2026 and often scale with users or volume, so confirm before you sign up.

What Makes Great Invoicing Software?

Great invoicing software gets you paid faster with less admin. If you still copy hours into a template or email clients by hand about late bills, the tool is not doing its job.

We weighed six things:

• Speed to invoice. How fast you can turn time or items into a finished bill.
• Reminders. Whether late notices go out on their own.
• Payment options. Cards, bank transfers and wallets right on the invoice.
• Fees. The monthly price plus the cut taken from each payment.
• Accounting fit. Whether paid invoices land cleanly in your books.
• Free plan. Whether you can start without paying.

Payment fees matter more than most people expect. A few cents per invoice adds up when you bill every week. If you also need full books, our list of the best AI accounting software covers that side.

Best Invoicing Inside Accounting Software

These three tools pair invoicing with full accounting, so paid invoices update your books on their own.

1. FreshBooks: Best for freelancers and service businesses that bill clients

FreshBooks is cloud accounting software that started as an invoicing tool for freelancers.

What it does well. FreshBooks makes billing for your time simple. You track hours, add expenses and turn both into an invoice in a few clicks. Clients can pay online, and reminders go out when a bill is late.

Key features:

• Time tracking that flows into invoices
• Automatic late payment reminders
• Recurring invoices and retainers
• Online card and bank payments
• Expense tracking and reports

Pricing. Lite is about $23 a month for up to 5 billable clients. Plus is about $43 a month for 50 clients, and Premium is about $70 a month with no client cap. Extra team members cost about $11 each a month. Checked in October 2026.

Payment fees. FreshBooks Payments charges 2.9% plus $0.30 per card payment. Bank transfers carry a 1% fee, per the pricing page.

Best for: Freelancers, consultants and agencies that bill by the hour or project.

Limitations. The 5-client cap on Lite is tight. Many businesses outgrow it fast and move to Plus.

Visit FreshBooks →

2. QuickBooks Online: Best for small businesses that want invoicing inside full accounting

QuickBooks Online is Intuit's cloud accounting software and one of the most used ledgers in the US.

What it does well. Invoices in QuickBooks are tied to your books, sales tax and reports. When a client pays, the payment is matched and recorded. Intuit Assist, its AI helper, adds automation across the product.

Key features:

• Custom invoices and estimates
• Automatic reminders and recurring invoices
• Online payments through QuickBooks Payments
• Sales tax and full financial reports
• A large app marketplace

Pricing. Simple Start is about $38 a month at full price. Essentials is about $85, Plus is about $140 and Advanced is about $340 a month. Intuit often runs short discounts for new users. Checked in October 2026.

Best for: Small businesses whose accountant already works in QuickBooks.

Limitations. It costs more than the invoice-first tools here. If you only need to send invoices, it is more software than you need.

Visit QuickBooks Online →

3. Xero: Best for small businesses that want a ledger with online invoice payments

Xero is cloud accounting software popular with small businesses and their accountants.

What it does well. Xero links invoices to bank feeds, so paid bills are easy to match. You can add online payment options to every invoice and send reminders on a schedule.

Key features:

• Online invoices and quotes
• Scheduled payment reminders
• Bank feeds and reconciliation
• Payment services through partners like Stripe
• A large app marketplace

Pricing. Early is about $27 a month, Growing is about $59 and Established is about $97. Early caps you at 20 invoices. Xero lists a discount for new US customers through November 2, 2026. Checked in October 2026.

Best for: Small businesses that want strong bank reconciliation with their invoicing.

Limitations. The 20-invoice cap on Early is low. Most active businesses will need Growing.

Visit Xero →

Best Free and Low-Cost Invoicing Software

These three tools let you send invoices for free, with paid upgrades when you grow.

4. Zoho Invoice: Best free invoicing for small teams

Zoho Invoice is the invoicing app from Zoho, the company behind Zoho Books.

What it does well. Yes, Zoho Invoice is still free. It covers branded invoices, quotes, reminders, time tracking and a client portal. You connect a gateway such as Stripe or PayPal to take card payments.

Key features:

• Custom invoice templates and quotes
• Automatic payment reminders
• Recurring invoices
• Time tracking for projects
• Client portal for viewing and paying invoices

Pricing. Zoho calls it forever free. The free plan allows up to 500 invoices a year, two users and three projects. Checked in October 2026.

Best for: Small businesses that want polished invoices at no cost.

Limitations. There is no full ledger, and the payment gateway charges its own fees. Heavy billers can hit the yearly invoice cap.

Visit Zoho Invoice →

5. Wave: Best free invoicing and bookkeeping for solo owners

Wave is free accounting and invoicing software for very small businesses.

What it does well. Wave gives you invoices and basic bookkeeping for $0. Clients can pay by card or bank on the invoice. Pro adds automatic reminders, bank imports and lower fees on your first card payments each month.

Key features:

• Unlimited invoices and estimates
• Online card and bank payments
• Recurring invoices
• Basic bookkeeping and reports
• Payroll and receipts add-ons

Pricing. Starter is $0. Pro is about $19 a month or about $190 a year. Checked in October 2026.

Payment fees. On Starter, Visa, Mastercard and Discover cost 2.9% plus $0.60, and Amex costs 3.4% plus $0.60. On Pro, the first 10 card payments each month skip the $0.60 fixed fee.

Best for: Solo owners who want free invoicing and simple books in one place.

Limitations. The $0.60 fixed fee is high on small invoices. Wave is built for the US and Canada.

Visit Wave →

6. Invoice Ninja: Best for open-source invoicing with many payment gateways

Invoice Ninja is open-source invoicing software you can use in the cloud or host yourself.

What it does well. Invoice Ninja connects to many payment gateways, so you choose who processes your payments. It handles quotes, recurring invoices, time tracking and a client portal.

Key features:

• Invoices, quotes and recurring billing
• Many payment gateway options
• Client portal
• Time and expense tracking
• Self-hosted option

Pricing. The Free plan covers up to 5 clients. Ninja Pro is about $14 a month or about $140 a year. Enterprise starts at about $18 a month for 1 to 2 users. Checked in October 2026.

Best for: Tech-savvy owners who want control over gateways or hosting.

Limitations. The setup has more options than simpler tools, which can slow new users down. Gateway fees are separate.

Visit Invoice Ninja →

Best Invoicing Apps for Freelancers and Payment Platforms

These four tools suit freelancers and businesses that want invoicing tied to a payment platform.

7. Bonsai: Best for freelancers who want proposals, contracts and invoices together

Bonsai is a business tool for freelancers and small agencies that covers the full client workflow.

What it does well. Bonsai links the steps before the invoice. You send a proposal, get a contract signed and then bill from the same project. That makes it a strong invoicing app for freelancers.

Key features:

• Proposals and e-signed contracts
• Invoices with automatic reminders
• Time tracking and projects
• Client portal
• Online payments

Pricing. Basic is about $15 per user a month, or about $9 billed yearly. Essentials is about $25, Premium about $39 and Elite about $59 per user a month. Elite needs at least 3 users. Checked in October 2026.

Best for: Freelancers and small studios that sign contracts before they bill.

Limitations. Prices are per user, so costs rise with team size. Payment processing fees are extra.

Visit Bonsai →

8. Square Invoices: Best for local businesses that already take Square payments

Square Invoices is the invoicing tool inside Square, the payments and point-of-sale company.

What it does well. If you already use Square to take payments in person, invoices fit in easily. The free tier includes invoices, recurring invoices, estimates and contracts. Payments land in the same Square account.

Key features:

• Invoices and recurring invoices
• Estimates and contracts
• Card and bank payments
• Card on file for repeat clients
• Links with Square POS

Pricing. Invoicing is included in the free Square plan. Square's help center lists online invoice payments at 3.3% plus 30 cents on Free and 2.9% plus 30 cents on Plus. Plus caps bank transfer fees at $10. Checked in October 2026.

Best for: Shops, contractors and local services already on Square.

Limitations. The free plan's online rate is higher than most tools here. We could not confirm the Plus monthly price on Square's pages.

Visit Square Invoices →

9. Stripe Invoicing: Best for online businesses and recurring B2B billing

Stripe Invoicing is the invoicing product from Stripe, the online payments company.

What it does well. Stripe Invoicing is built for businesses that bill online at scale. Invoices can be sent from the dashboard or the API. Stripe handles payment collection, reminders and retries for failed payments.

Key features:

• Hosted invoice pages with many payment methods
• Automatic reminders and retries
• API for automated billing
• Quotes on the Plus tier
• Links with Stripe Billing for subscriptions

Pricing. Starter is 0.4% per paid invoice and Plus is 0.5% per paid invoice. Stripe lists no fixed or setup fees for Invoicing. Standard Stripe Payments fees apply on top. Checked in October 2026.

Best for: Online and SaaS businesses that bill other businesses.

Limitations. You pay the invoicing fee plus card fees. It suits teams with some technical help better than solo freelancers.

Visit Stripe Invoicing →

10. PayPal Invoicing: Best for quick invoices to clients who already use PayPal

PayPal Invoicing lets you send a bill from your PayPal business account.

What it does well. Many clients already have PayPal or Venmo, so paying is easy for them. You can send an invoice in a few minutes without new software.

Key features:

• Simple invoices from a PayPal business account
• Payment by PayPal, Venmo, card or bank
• Pay Later options for clients
• Reminders for unpaid invoices
• Mobile app for sending on the go

Pricing. PayPal lists invoice payment fees, not a monthly fee for basic invoices. Cards cost 2.99% plus $0.49. PayPal and Venmo cost 3.49% plus $0.49. Pay by Bank costs 1%, capped at $10. Checked in October 2026.

Best for: Freelancers who send a few invoices to clients that prefer PayPal.

Limitations. The fees are among the highest here. International payments add an extra 1.5%.

Visit PayPal Invoicing →

What Does It Cost to Collect $5,000 a Month?

Collecting $5,000 a month by card across 10 invoices costs roughly $150 to $175 on the tools that publish full fees. The table uses only published software prices and card fees.

It assumes US cards, standard rates and no add-ons. Tools whose card rate we could not confirm are marked.

Tool and plan	Software	Card fees on $5,000	Total a month
FreshBooks Lite	about $23	about $148	about $171
Wave Starter	$0	about $151	about $151
Wave Pro	about $19	about $145	about $164
Square Free	$0	about $168	about $168
PayPal Invoicing (cards)	$0	about $155	about $155
Stripe Invoicing Starter	about $20 (0.4%)	Stripe card fees	$20 plus card fees
Zoho Invoice	$0	Gateway fees	Gateway fees only
Invoice Ninja Pro	about $14	Gateway fees	$14 plus gateway fees

Card fees are the biggest cost at almost any volume. If your clients will pay by bank transfer, fees drop sharply. PayPal's bank option, for example, caps at $10.

How Should You Choose Invoicing Software?

Start with what else you need besides invoices, then match the tool to it:

• You also need full books: QuickBooks Online or Xero.
• You bill by the hour: FreshBooks, or Bonsai if you also send contracts.
• You want free: Zoho Invoice, Wave or Invoice Ninja for up to 5 clients.
• You already use Square: Square Invoices.
• You bill online at scale: Stripe Invoicing.
• Your clients prefer PayPal: PayPal Invoicing.

Also check how payments reach your books. If you are still choosing a ledger, see the best AI bookkeeping software. Online sellers should also read our guide to the best AI tools for ecommerce.

How We Evaluated This Invoicing Software

We built this list from each tool's official website and pricing page, all checked in October 2026. The list is not based on live account testing.

Tools were ranked on speed to invoice, reminders, payment options, fees, accounting fit and free plans. Start a free plan or trial, and confirm prices and fees with each vendor before you commit.

What Is an AI Invoice Generator?

An AI invoice generator builds an invoice from a short prompt or from data you already have. You might type a client name and the work done, and the tool fills in items, rates and due dates.

Most tools on this list use automation more than AI. They pull time, expenses and saved items into invoices. AI features are growing, so check what is on your plan before you pay for it.

How Do Automatic Payment Reminders Work?

Automatic payment reminders are emails the software sends for you when an invoice is due or late. You set the schedule once, and the tool follows it.

A typical setup looks like this:

• Before the due date: a friendly heads-up a few days early.
• On the due date: a reminder with the pay button.
• After the due date: follow-ups every week until the client pays.

Reminders stop as soon as the invoice is paid online. That saves you awkward emails and keeps cash moving.

The Bottom Line

FreshBooks is the best AI invoicing software for most freelancers and service businesses. QuickBooks Online and Xero are best if you want full accounting too.

Zoho Invoice and Wave are the best free picks, and Bonsai is the strongest freelancer workflow. Square, Stripe and PayPal fit businesses already on those payment platforms.

Next steps: Count how many invoices you send each month and how clients like to pay. Then try two tools on a free plan or trial. For more ideas, see our hub of AI finance tools.

Frequently Asked Questions

What is the best AI invoicing software?

For most freelancers and small businesses, FreshBooks is the best pick. QuickBooks Online and Xero are best if you also want full accounting.

Is Zoho Invoice still free?

Yes. Zoho calls Zoho Invoice forever free, with up to 500 invoices a year and two users. Checked in October 2026.

What is the best invoicing software for small business?

QuickBooks Online suits small businesses that want invoices and books together. FreshBooks suits service businesses, and Wave suits owners on a tight budget.

What is the best invoicing app for freelancers?

Bonsai is strong for freelancers who send proposals and contracts. FreshBooks is strong for freelancers who bill by the hour.

Which invoicing software has the lowest payment fees?

Among published card rates, FreshBooks and Wave Pro charge 2.9% plus a fixed fee. Bank transfers are usually far cheaper than cards on any tool.

Does PayPal charge to send an invoice?

PayPal lists fees on invoice payments, not a fee per basic invoice sent. Card payments cost 2.99% plus $0.49 in the US. Checked in October 2026.

More in AI for Finance

• Best AI Accounts Payable Software: 9 AP Tools Compared
• Best AI Accounting Software: 8 Options Compared for Small Business
• Best AI Bookkeeping Software: 9 Tools Compared
• Best AI Tools for Accountants: 8 Tools for Firms Compared
• Best AI Expense Management Software: 9 Tools Compared
• Best AI Payroll Software: 9 Payroll Tools Compared

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