Invoice software for consultants
Bill hours, projects, or retainers in clean, professional invoices. Multi-currency for international clients. Payment tracking that tells you who actually paid the deposit.
Gratis abonnement · Geen creditcard nodig · In enkele minuten klaar
De problemen die je echt hebt
Hourly tracking that scatters everywhere
Your hours live in a notes app, a timer, a calendar, and your head. Reconstructing them at month-end is painful.
Mixed billing models
One client is hourly, another is project-based, a third is on retainer. Your invoicing tool needs to handle all three cleanly.
International payments
You bill in USD for one client and EUR for another. Most simple tools force you to pick one.
Deposit & milestone billing
Tracking deposits, milestone payments, and final invoices for the same engagement is its own little project.
Bill the way your engagements actually work
Lemon Invoice keeps hourly, fixed-fee, and retainer engagements on the same clean invoice. Mix line items freely. Bill in any currency. Send a deposit invoice, then the balance, and track both until they're paid.
Hoe het werkt
Create your free account
Sign up with your email and your workspace is ready in under a minute: no credit card, nothing to install, nothing to configure with IT. Because it runs entirely in the browser, you can quote a prospective client from your laptop between meetings or send a final invoice from wherever the engagement happens to wrap up, on whatever device is in front of you.
Add your business and clients
Set up your consultancy's profile: logo, payment terms, invoice numbering. Then add your clients and the services or day rates you typically bill for each type of engagement. If you're moving from another system, import your client list from a spreadsheet instead of re-entering every contact and rate by hand, one row at a time.
Send your first invoice
Mix hourly time, a fixed project fee, and a retainer charge on the same invoice if the engagement calls for it, then send it as a branded PDF or link. Track it through paid, partial, or overdue on your dashboard, alongside every other client, currency, and engagement you happen to be billing at the same time.
Wat je krijgt
Flexible line items
Mix hours, fixed fees, expenses, and retainer charges on a single invoice.
Multi-currency billing
Bill USD, EUR, GBP, or anything else. Dashboard converts to your home currency.
Quote → invoice in one click
Send a proposal, get approval, convert to invoice. No re-typing.
Deposit + final invoice tracking
Issue a deposit invoice, then the balance, and track both to paid from the same client record.
Branded PDFs
Your consultancy's brand on every document. Clients take you seriously.
Activity log
Every invoice is timestamped when created, sent, and paid, keeping your records accurate.
Invoicing for consultants, in practice
The right invoice software for consultants has to handle whatever billing model a given engagement actually uses, sometimes on the same invoice. Mix hourly line items, a fixed project fee, and a retainer charge freely, and send the result 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, and the activity log timestamps exactly when it was created, sent, and paid, useful the day a client asks when an invoice actually went out, or insists they never received it.
Bigger engagements rarely bill in one shot. Send a deposit invoice to lock in the work, then a final invoice for the balance, and track both to paid under the same client record instead of juggling two separate systems or two separate spreadsheets. If your consultancy is VAT-registered, apply a rate per line item and every invoice, deposit or final, breaks out the net, VAT, and gross clearly, so a client's finance team never has to ask what a number actually means. Billing an international client is just as straightforward: issue the invoice in USD, EUR, GBP, or whatever they pay in, and your dashboard still consolidates everything back into your home currency for reporting.
Send a proposal as a quote first, and the moment it's approved, convert it into an invoice in one click: no re-typing the scope or the rate. If a client renegotiates after the fact or a line item needs correcting, issue a credit note against the original invoice instead of editing history, keeping your engagement records clean. And because retainer clients tend to repeat month to month, duplicate last month's invoice instead of rebuilding it from scratch, adjust the numbers, and send. Then export the whole year in one click when your accountant asks for it.
Consultancies work across borders as a matter of course, and the software should keep up. The interface is available in 9 languages, so a client reviewing your invoice doesn't have to decode unfamiliar labels before they can approve payment. If you're bringing over a roster of existing clients from a previous tool, import them from a spreadsheet in bulk rather than typing each contact and rate in individually, and every branded PDF you send afterward pulls straight from those saved records, right down to the currency and payment terms you agreed with each one.
Ready to bill your very next engagement properly?
Start freeVragen, beantwoord
Can I bill by the hour and by the project on the same invoice?+
Yes. Each invoice line is independent: mix hourly time, fixed fees, and expense reimbursements freely.
Do you support recurring retainer invoices?+
Retainers are billed as regular invoices: duplicate last month's invoice and send it again, or build a fresh one from your saved client and product records.
Which currencies are supported?+
All major currencies (USD, EUR, GBP, etc.). You can bill different clients in different currencies and your dashboard reports show consolidated revenue.
Can clients pay directly from the invoice?+
Every invoice includes your payment instructions, and clients pay via bank transfer using the details shown on the document.
Does Lemon Invoice handle VAT for consulting services?+
Yes. Set a VAT rate per invoice line, and every invoice (deposit, milestone, or final) shows a clear net, VAT, and gross breakdown. If you work with clients in different countries, this keeps every document accurate regardless of which VAT treatment applies to that particular engagement or client relationship.
Can I hand my invoices to an accountant at tax time?+
Yes. Export your invoices and payments in one click, in a format built for handing to an accountant or bookkeeper, instead of assembling a spreadsheet of every engagement from memory once a year and hoping nothing important got missed along the way.
What if a client disputes part of an invoice after I've sent it?+
Issue a credit note against the original invoice rather than editing or deleting it. Your engagement history and numbering stay intact, and the client has clear documentation of exactly what changed and why, which tends to settle the disagreement faster than a long email back-and-forth about the original scope.
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