Invoice software for accountants
Built by accountants, for accountants. Multi-client workspaces, multi-business support, VAT handled correctly, and exports your bookkeeping software can actually read.
The problems you actually have
Client data scattered across tools
Every client uses a different invoicing tool. Pulling year-end data is a re-keying job.
VAT done wrong, by clients
You spend half your billable time fixing VAT on client-issued invoices that never should have gone out.
Reverse-charge confusion
EU reverse-charge, OSS reporting, intra-community supplies — most invoicing tools handle none of it.
Exports that don't import
Your bookkeeping tool wants CSV in a specific shape. Generic invoice exports never match.
Invoicing your clients can actually do right
Lemon Invoice was built by a working accountant. It enforces correct numbering, defaults to compliant VAT handling, and exports cleanly. Give it to your clients and watch your year-end workload shrink.
What you get
Multi-business support
One client account, multiple legal entities. Manage them all from one login.
VAT done correctly
Per-line VAT, reverse-charge, and intra-community supply flagging out of the box.
Enforced numbering
Sequential, locked invoice numbering. No duplicates, no gaps, no excuses.
Clean exports
CSV exports formatted to drop into Xero, QuickBooks, and most local bookkeeping tools.
Audit trail
Every invoice change is logged. Defensible records if HMRC, IRS, or auditors come knocking.
Client onboarding flow
Walk new clients through setup in under 15 minutes. They self-serve from there.
Questions, answered
Can I manage multiple clients from one account?+
Yes. The Premium plan supports multiple businesses under one login, so you can manage your own practice and your clients' entities from one place.
Does it export to my bookkeeping software?+
Lemon Invoice exports invoice and payment data as CSV that imports cleanly into Xero, QuickBooks, and most local bookkeeping tools. Direct integrations are on the roadmap.
Does it handle reverse-charge VAT?+
Yes. EU reverse-charge for intra-community B2B supplies is supported on the invoice. The right legend appears automatically.
Can clients see their data without bothering me?+
Yes — that's the whole point. Each client has their own login and only sees their entities. You see all of them.
