Best Free Invoicing Software for Small Business in 2026: 5 Tools Compared

Sending a professional invoice should not require a monthly subscription. In 2026 there are genuinely free invoicing tools that let you bill clients, get paid online and track what is owed - no trial that quietly converts, no credit card, no invoice cap on the best ones. The hard part is no longer paying; it is knowing which free plan is real and which one you will outgrow first.

This guide compares the five tools small businesses actually choose for free invoicing: Wave, Zoho Invoice, Invoice Ninja, Hiveage and FreshBooks. We checked each vendor's 2026 pricing page and free-tier limits so you can pick in about five minutes - and know exactly when it is time to pay. Prices below were verified in September 2026; always confirm on the official pricing page before you sign up.

What changed in free invoicing in 2026

Three things are worth knowing before you choose:

• "Free" now usually means "free with limits, forever". The classic tricks - a 14-day trial that becomes a subscription, or a free plan capped at 3 invoices - have mostly disappeared. The remaining free plans are honest but bounded: Zoho Invoice caps you at 500 invoices and 2 users a year; Invoice Ninja and Hiveage cap clients at 5. Read the limits, not just the "$0".
• The money moved to payments. Wave's free plan is the most generous in the category because its business model is payment processing: you pay nothing to invoice, and 2.9% + $0.60 only when a client pays you by card inside Wave. If your clients pay by bank transfer or check, Wave can genuinely cost you zero.
• Compliance e-invoicing is a separate category. Governments from Vietnam to the EU now mandate tax e-invoicing through certified providers. A free global invoicing app will never satisfy that - it is for commercial billing, not tax compliance. We cover the difference in the Vietnam section below.

The 5 best free invoicing tools at a glance

Prices verified September 2026 from vendor pricing pages; month-to-month billing costs more than annual. Always confirm on the official page before you sign up.

Wave - the most generous free plan, US and Canada only

Wave is the tool every "best free invoicing" list starts with, and for good reason: the Starter plan includes unlimited invoices, estimates and bills plus double-entry bookkeeping at $0 - no invoice cap, no per-invoice fee, no branding forced on your PDFs and no credit card required. Invoices flow straight into your books, so you are not reconciling two systems. You pay only when a client pays by card: 2.9% + $0.60 per transaction (3.4% + $0.60 for Amex), and bank transfers carry their own fee.

Pro costs $19/month billed monthly (about $190/year, roughly $16/month equivalent billed annually) and adds the features growing businesses miss on free: automatic bank transaction import, unlimited receipt capture, automated late-payment reminders, custom branding and extra users. Wave Payroll (from about $40/month plus per-employee fees, US states only) and Wave Advisors assisted bookkeeping ($149-199/month) are separate paid services.

The trade-offs: since November 2020 Wave has only accepted new sign-ups in the US and Canada - if you are anywhere else, including Vietnam, you cannot use it. And there is no inventory, project accounting or deep reporting; Wave suits sole traders and micro-businesses, not shops with stock or agencies with complex billing.

Zoho Invoice - the best free option outside North America

Zoho Invoice is a standalone invoicing product that is completely free with no paid plan inside it: no trial, no time limit, no credit card. The free tier allows up to 2 users, 3 projects and 500 invoices per year, which comfortably covers a solo freelancer or consultant. You get professional multi-currency, multi-language invoices, quotes that convert to invoices in one click, recurring invoices, time tracking and billable expense logging, automated payment reminders, a client self-service portal and 10+ payment gateways including PayPal, Stripe and Square. Documents carry a small "Powered by Zoho Invoice" line on the free plan.

When you outgrow it, Zoho's answer is not a more expensive Invoice plan - it is Zoho Billing (for subscriptions and higher volume) or Zoho Books, whose own free tier covers businesses earning under $50,000 a year with 1 user plus an accountant and up to 1,000 invoices annually if you need full double-entry accounting.

The trade-offs: the 500-invoice and 2-user caps are real, the Zoho branding stays until you move to a paid product, and Zoho deletes data of accounts inactive for 120 days without much warning - export regularly if you only invoice seasonally. There is no job management or progress billing, which matters for larger contractors.

Invoice Ninja - open source, so "free" has no ceiling

Invoice Ninja is the open-source choice: invoices, quotes, payments, expenses, time tracking, recurring billing, a client portal and multi-currency in one clean app. Because the code is open source, the pricing ceiling does not exist - self-hosting is free forever with no client or invoice limits (you pay only about $40/year if you want to remove the Invoice Ninja branding on self-hosted documents, from January 2026). For most people the hosted cloud is simpler: the free plan includes 5 clients and unlimited invoices, and paid plans unlock more.

Invoice Ninja Pro costs $14/month for 1 user (or $140/year) and removes the client cap; Enterprise starts at $18/month for 2 users and scales by seats up to $300/month for 100 users. The company updated pricing on 1 January 2026 - older articles quoting the previous rates are out of date.

The trade-offs: the hosted free plan's 5-client cap arrives quickly if you take on a sixth customer, and the self-hosted route needs a bit of technical comfort (install, updates, backups). If you are not technical and have more than 5 clients, Zoho Invoice or a paid plan fit better.

Hiveage - unlimited invoices for up to 5 clients

Hiveage is a lesser-known but solid free option for service businesses: its free plan includes unlimited invoices and estimates plus time and expense tracking, with payment gateways enabled, for up to 5 clients - free forever. It handles recurring billing, credit notes and multi-currency, and every plan lets you try the full Pro experience for 14 days without a credit card.

Paid plans start at Basic, $19/month billed monthly ($16/month equivalent billed annually), which raises the client limit to 50 and adds financial reports; Pro at $29/month ($25 annual) adds 250 clients, 5 team members, your own domain and branded emails, and Plus at $49/month ($42 annual) adds 1,000 clients, 10 members and API access.

The trade-offs: the free plan's 5-client limit and the Hiveage branding on documents will push most growing shops to Basic sooner than they expect, and the interface, while clean, is less polished than FreshBooks or Zoho.

FreshBooks - the best paid tool, and honest that it is paid

FreshBooks has no free plan - only a 30-day free trial with no credit card - but it deserves a place in this comparison because it is the tool people name when they ask what to graduate to. The experience is the smoothest in the category: polished client invoices, an account portal where clients can view and pay, automatic late-payment reminders, and strong mobile apps. Lite costs $19-23/month (annual vs monthly billing) for 5 billable clients with unlimited invoices, expense and time tracking; Plus is $33-43/month for 50 clients and adds proposals, retainers and double-entry accounting; Premium is $60-70/month for unlimited clients. Add-ons stack on top: Advanced Payments $20/month, team members $11/person/month, FreshBooks Payroll $40/month plus $6 per person.

The trade-offs: the per-add-on pricing means a Lite subscriber adding payroll and a second team member roughly triples the bill, and FreshBooks regularly runs steep promotions (90% off for 3 months), so compare the list price, not the promo, when budgeting. Buy it when you want the premium client experience - not to save money.

Which one should you pick?

• US or Canada, want invoicing + bookkeeping at $0: Wave. Unlimited invoices, no per-invoice fee, and your books update automatically.
• Freelancer or consultant anywhere else, under 500 invoices a year: Zoho Invoice - the most complete free tool globally, with payments and time tracking included.
• Want unlimited invoices at $0, or care about privacy/open source: Invoice Ninja - 5 clients free on the hosted plan, or self-host with no limits at all.
• Service business with up to 5 clients that wants simple, clean billing: Hiveage free, then Basic ($19/month) when client number six arrives.
• You are ready to pay for the best experience: FreshBooks Lite ($19-23/month) - start the 30-day trial, and budget past the promo price.

Free invoicing for Vietnam and Southeast Asia

Most global tools on this list work normally from Vietnam: Zoho Invoice, Hiveage and Invoice Ninja all support multi-currency billing, which makes them natural choices for Vietnamese freelancers and agencies invoicing overseas clients in USD. Wave is the notable exception - it stopped accepting new sign-ups outside the US and Canada in November 2020, so Vietnamese users should not build a workflow around it.

One distinction matters more in Vietnam than anywhere else: a free international invoicing app is not a Vietnamese e-invoice. Since 1 July 2022, every Vietnamese business must issue tax e-invoices (hoa don dien tu) through a certified provider such as MISA, Viettel or VNPT — first under Decree 123/2020/NĐ-CP, and since 1 July 2026 under Decree 254/2026/NĐ-CP — and those services are paid. The practical setup most freelancers and small agencies use: a free global tool (Zoho Invoice or Invoice Ninja) for professional commercial invoices to foreign clients, plus a compliant Vietnamese e-invoice service for domestic tax invoices. For provider-by-provider pricing and a full walkthrough, see our E-Invoice Software Vietnam guide. And if you run a service business that also sends marketing emails, our free email marketing tools guide covers the other half of your client communication stack.

If you need help choosing invoicing software, connecting payment gateways or setting up compliant billing workflows for a Vietnamese business, Tân IT365 offers small-business IT and automation services across Vietnam.

FAQ

What is the best free invoicing software for small business in 2026?

For businesses in the US and Canada, Wave is the best free option because it has no invoice limit and no per-invoice fee. Globally, Zoho Invoice is the strongest free tool for freelancers and consultants who send fewer than 500 invoices a year, and Invoice Ninja's free cloud plan gives you unlimited invoices for up to 5 clients - or you can self-host it for free with no client limit at all.

Is Wave invoicing really free?

Yes. Wave's Starter plan is genuinely free forever: unlimited invoices, estimates and bills plus basic bookkeeping, with no time limit, no invoice cap and no per-invoice fee. Wave earns money from payment processing (2.9% + $0.60 per card transaction) and from its $19/month Pro plan, which adds bank auto-import, late-payment reminders and custom branding. One catch: since November 2020 Wave only accepts new sign-ups in the US and Canada.

Is Zoho Invoice free forever?

Yes - Zoho Invoice has no trial and no time limit on its free plan. You get up to 2 users, 3 projects and 500 invoices per year, with multi-currency support, quotes, recurring invoices, time tracking and payment gateways such as PayPal and Stripe. Documents carry a "Powered by Zoho Invoice" line, and there is no paid plan inside the app: when you outgrow it, Zoho steers you to Zoho Billing. Note that accounts inactive for 120 days can be deleted, so export your data before a long break.

Which free invoicing app allows unlimited invoices?

Wave (US/Canada only) allows unlimited invoices at $0 with no per-invoice fee. Invoice Ninja's hosted free plan allows unlimited invoices for up to 5 clients, and because it is open-source you can self-host it for free with no client or invoice limits at all. Hiveage's free plan also has unlimited invoices for up to 5 clients. Zoho Invoice is the main exception - its free plan caps you at 500 invoices per year.

Can I use free invoicing software in Vietnam, and do I still need e-invoicing?

Yes - global tools such as Zoho Invoice, Hiveage and Invoice Ninja work normally from Vietnam and are great for freelancers and agencies that bill overseas clients in USD or other currencies. But they do not replace Vietnam's tax e-invoicing (hoa don dien tu): since 1 July 2022 every Vietnamese business must issue tax e-invoices through a certified provider such as MISA, Viettel or VNPT — under Decree 123/2020/NĐ-CP until 30 June 2026, and Decree 254/2026/NĐ-CP since 1 July 2026. Use a free international tool for commercial billing abroad and a compliant e-invoice service for your Vietnamese tax invoices - see our E-Invoice Software Vietnam guide for providers and pricing.