FreeAgent vs Invoice Ninja

Compared on	FreeAgent Free plan · from £8.33/mo VisitRemove	Invoice Ninja Free plan · from $11.67/mo VisitRemove
What it is	UK accounting for sole traders, companies and landlords, free with a NatWest Group business account	Source-available invoicing, payments, expenses and time tracking, hosted from free or self-hosted
Free plan	Free for as long as you hold a NatWest, Royal Bank of Scotland or Ulster Bank business current account, or a Mettle account with at least one transaction a month (Mettle is not listed for partnerships). Optional add-ons may be chargeable.	Up to 5 clients with unlimited invoicing, 11 invoice templates, online payments, recurring invoices and auto-billing, expenses, projects and time tracking, client portal; Invoice Ninja branding stays on
Cheapest paid plan	£8.33/mo billed annually (Landlord (unincorporated))FreeAgent pricing	$11.67/mo billed annually (Ninja Pro)Invoice Ninja pricing
What it covers	For UK unincorporated landlords; excludes 20% VAT; £100 billed yearly. The Sole trader plan is £19/month (£190/year). Promotion: 50% off for the first 6 months on monthly billing, or the first year on annual billing.	Unlimited clients and invoices, no Invoice Ninja branding; $140 billed yearly. 30-day money-back guarantee on paid plans.
Free trial	30-day free trial, no credit card required	None stated
Platforms	Web, iOS, Android, API	Web, iOS, Android, macOS, Windows, Linux, API
Integrations (vendor's figure)	Integration partnerships including Dext, Engager.app, Bright and Syft	Dozens of payment gateways, plus hundreds of apps via Zapier, Make and Pabbly
Open source	No	Yes, self-hostable
Good for	UK sole traders preparing for Making Tax Digital for Income Tax Limited company directors who file Corporation Tax and run payroll themselves NatWest, RBS, Ulster Bank or Mettle customers who want free accounting	Freelancers with a handful of clients who want free invoicing Businesses that want to host their invoicing data themselves European businesses that need PEPPOL e-invoicing
Watch out for	Built for UK businesses: plans cover HMRC filings and prices are in GBP excluding VAT Smart Capture covers 10 receipts and bills a month unless you pay £5 a month Accounts set up on the cash basis do not include stock or payroll features	The hosted Free plan is limited to 5 clients and keeps Invoice Ninja branding Bank sync, team users and permissions need Enterprise Its pages do not describe payroll, tax filing or AI features
Made by	FreeAgent Central Limited	Invoice Ninja LLC

Entry prices are the cheapest paid plan, as each vendor publishes it; “What it covers” says what that price is per (a user, a channel, a brand, a number of contacts). The sources are listed on each tool's page.

Every tool in accounting and invoicing software is on its category page, with the written head-to-heads on Compare.