The invoice app for the self-employed
You didn't go independent to do paperwork. Create an invoice in a minute, know exactly who still owes you, and hand your accountant clean records at tax time.
Gratis plan · Intet betalingskort · Klar på få minutter
De problemer, du faktisk har
Admin eats your evenings
Every hour spent formatting invoices and chasing payments is an hour you're not billing, or living.
Cash flow is a guess
When you don't know what's outstanding, a slow-paying client becomes a personal emergency.
Accounting tools are overkill
Full bookkeeping suites bury the one thing you actually need: getting invoices out and payments in.
Just the billing, done right
Lemon Invoice focuses on the part of admin that pays you: professional invoices, sent fast, tracked until paid. Your clients, documents, and payment history live in one simple workspace that takes minutes to learn, and exports cleanly when your accountant asks.
Sådan fungerer det
Create your free account
Signing up takes your email and about a minute: there's no credit card to enter, no accounting background required, and nothing to download or install. Because Lemon Invoice runs entirely in your browser, your first invoice can go out from a laptop, a tablet, or your phone the moment a job wraps up.
Add your business and clients
Add your business details (logo, payment info, invoice numbering) once, then add your clients as you take them on. If you're coming from paper invoices or a spreadsheet, import your client list in bulk instead of typing every name in by hand, one at a time, on a Sunday evening you'd rather spend elsewhere. Every invoice afterward pulls straight from these saved records, so nothing gets retyped.
Send your first invoice
Pick a client, add your line items, and send the invoice as a branded PDF or a link. Numbering happens automatically, in sequence, every single time, so you never have to remember where you left off. From your dashboard you'll see at a glance which invoices are paid, partially paid, or still overdue, so you're never guessing who owes you money or how much.
Det får du
One-minute invoices
Pick the client, add the lines, send. Numbering and formatting are automatic.
Know who owes you
Outstanding and overdue amounts visible the moment you log in.
Professional look
Branded templates that make a one-person business look established.
Quotes included
Send a quote first, convert it to an invoice when they say yes.
Tax-time export
A year of invoices in one clean export for your accountant or tax return.
Invoicing for the self-employed, in practice
A genuinely useful invoice app for self-employed professionals does one thing well: it gets a professional invoice out the door fast, then tells you exactly who's paid and who hasn't. Pick a client, add your line items (an hourly rate, a flat fee, or whatever the job called for), set payment terms, and send it as a branded PDF or a shareable link the client can open without creating an account of their own. Every invoice is numbered automatically and in sequence, so there's never a gap in your records you have to explain later, to yourself, a client, or an accountant.
Not every job is a sure thing before you start. Send a quote first, and the moment the client agrees, turn it into an invoice with one click. Nothing gets retyped, and the numbering stays clean and sequential from quote to invoice. If you're VAT-registered, set a rate per invoice line and every document shows the net, VAT, and gross totals clearly; if you're not registered, just leave VAT off and the invoice format adapts without forcing numbers that don't apply. Working with a client abroad follows the same pattern: bill them in their own currency, and your dashboard still totals everything in your home currency, so you always know exactly where you stand financially.
If a client needs a partial refund, or you spot a mistake after sending an invoice, issue a credit note against the original rather than deleting it outright. Your numbering and history stay intact, which matters the day an accountant looks at the year as a whole and asks why a number doesn't add up. At tax time, export a full year of invoices and payments in one click instead of digging back through old emails and folders trying to reconstruct what actually happened. All of this is covered on the free plan, so being self-employed doesn't mean paying for accounting software built for a business ten times your size just to send a handful of invoices a month.
Repeat work is common once you're established, so when a new job looks just like the last one, duplicate the previous invoice or quote instead of building it from a blank page. Adjust the date and amount, and it's ready to send in seconds rather than starting over from nothing every single time. And if any of your clients are based abroad, the interface itself is available in 9 languages, so a language barrier is never the reason an invoice sits around unpaid for weeks on end.
Ready to send your very first invoice as your own boss?
Start freeSpørgsmål og svar
I have no accounting background. Is this for me?+
Yes. Lemon Invoice is deliberately simpler than accounting software: clients, quotes, invoices, payments. If you can write an email and send an attachment, you can use it comfortably from day one.
What does it cost?+
There's a free plan that covers the essentials, and a flat monthly subscription when you need more. No per-invoice fees, ever.
Can I use it on my phone?+
Yes. Lemon Invoice runs in the browser and works on mobile, so you can send an invoice the moment the job is done, right from the doorstep if you want to.
Does the app handle VAT if I'm self-employed?+
Yes. If you're VAT-registered, set a rate per invoice line and Lemon Invoice works out the net, VAT, and gross totals for you automatically, on every single invoice you send. If you're not registered, leave VAT off entirely. The invoice format adjusts either way, so you're never forcing numbers onto a document that doesn't need them.
Can I invoice clients in a different currency?+
Yes. Issue the invoice in whatever currency your client pays in, and your dashboard still shows your totals converted back to your home currency, so you always have a clear picture of what you've actually earned this month or this year, no matter who paid you in what currency.
What if I need to correct an invoice after I've sent it?+
Issue a credit note against the original invoice rather than editing or deleting it after the fact. It keeps your numbering sequence intact and gives you (and your accountant, if you have one) a clean, honest record of exactly what changed and why it changed, without any guesswork later.
Can I hand my records to an accountant at year-end?+
Yes. Export a year of invoices and payments in one click, in a format built for handing to an accountant or bookkeeper, instead of forwarding a folder of emails and hoping they can make sense of it. Plenty of self-employed users only open that export once a year, at tax time.
Flere løsninger
Invoice software for freelancers
Simple invoice software built for freelancers. Send professional invoices in seconds, track payments, and get paid faster, without spreadsheets or accountants.
Free invoice generator
Create and send professional invoices for free. No credit card required. Branded PDF invoices, payment tracking, and quotes. Start in seconds.
Simple online invoicing
Online invoicing software made simple. Send branded invoices from anywhere, track payments in real time, and keep your billing tidy across all your devices.