Best Invoice Software in 2026

QuickBooks Online is the benchmark when invoicing is part of a larger accounting job. Invoices connect directly to accounts receivable, the general ledger, expense tracking, and tax reporting, so you do not reconcile a separate invoicing tool at month end. Most US accountants already know it, which makes handover easier.

The price reflects that breadth. Simple Start starts at $38 per month in published 2026 pricing, and the entry plan covers one user, so teams pay more. If you only send a few invoices a month and do not need full accounting, a free tool below will do. If your books are growing, QuickBooks is the safer long-term choice.

FreshBooks is built around getting paid. Its invoices look polished, payment reminders run automatically, and time tracking feeds directly into invoices for service businesses. That focus makes it a favourite with freelancers, consultants, and agencies that bill by the hour or by project.

It is not a full accounting replacement on lower plans, and the Lite plan caps the number of billable clients. FreshBooks suits service businesses that invoice constantly and want the chasing to happen without manual follow-up. If you need full accounting and inventory, QuickBooks or Xero will fit better.

Xero is the clean, modern option for growing businesses. Its invoicing is strong, its interface is easy to learn, and its accountant and bookkeeper ecosystem is large outside the US as well as inside it. Unlimited users on plans is a genuine advantage for teams, since rivals often charge per seat.

The entry plan is the catch. Early, at $25 per month in published pricing, caps invoices at 20 per month and bills at five per month, so busy businesses need a higher plan. Xero suits teams that are growing and want room to add users without paying per seat, provided their invoice volume fits the plan they choose.

Zoho Invoice is the best free invoice app for many small businesses. Its free plan covers invoicing, recurring billing, and professional templates, with a cap of two users and 500 invoices per year in published comparison terms, while Zoho Books free covers up to 1,000 invoices per year for businesses under $50,000 in revenue. That is generous enough for most freelancers and small firms.

The limits matter if you grow fast or add staff, and payment processing fees apply on top of the free software, as they do everywhere. Zoho Invoice also upgrades cleanly into Zoho Books and the wider Zoho suite. If you want free invoicing without a revenue cap, Wave below is the alternative to check.

Wave is the genuinely free option for core invoicing and bookkeeping. Its Starter plan is free, with unlimited invoices and bookkeeping records, and no revenue cap of the kind Zoho Books applies. That makes it a strong choice for new businesses, side hustles, and freelancers who want to keep costs at zero.

Wave earns money on payment processing and on its paid Pro plan, at $19 per month in some published listings, which adds features like automatic bank import. If your books are simple and you mainly need invoices, receipts, and payment collection, Wave covers the job for free. If you need payroll or advanced reporting, a paid accounting tool will fit better.

Square Invoices suits businesses that take card payments in person and online. Its free plan covers invoicing with payment collection, and paid Plus adds features like deposits, milestones, and custom templates. If you already use Square for point of sale, invoices sit naturally alongside your sales data.

It is not a full accounting tool. Businesses that need detailed bookkeeping, inventory, or payroll will still need a separate system. Square Invoices earns its place when payment speed matters most: send an invoice, get paid by card, and see the money in your Square account without a separate payment setup.

Stripe Invoicing takes a different pricing approach: no monthly fee, with a fee starting at 0.4 percent per paid invoice in published comparisons, plus standard card processing fees. That makes it cheap for low-volume businesses and flexible for online-first companies that sell internationally, with support for many currencies and payment methods.

The trade-off is setup. Stripe is built for developers and online businesses, so its interface assumes more technical comfort than FreshBooks or Wave. If you sell online, bill subscriptions, or take international payments, Stripe Invoicing is a strong choice. If you want a simple app for a handful of local clients, a free tool above will feel easier.

Invoice Ninja is the open source option on this list. You can self-host it for free, which appeals to technical users who want control over their data, or use its hosted plans for a managed service. It covers quotes, invoices, recurring billing, expenses, and client portals, which is a lot for a free tool.

Self-hosting is not for everyone. It needs server setup, updates, and backups, and some features sit behind paid hosted plans. Invoice Ninja suits developers, agencies with technical staff, and businesses that want open source software. For most small businesses, Wave or Zoho Invoice will be simpler.