Features
Billy is the AI invoicing app for freelancers: beautiful where clients see it, effortless everywhere else. Tell the assistant what to bill — it handles the rest, and you approve.
This is the difference from classic invoicing software — and what no other invoicing tool in the German-speaking market offers like this: an assistant that actually does the work, not just reads receipts. Billy doesn’t wait for you to trigger every task; it works in the background on your rules.
You stay in control: actions that change or delete data require confirmation, and the agent never fabricates data — it works only with what is actually in your account.
Invoices, quotes, credit notes and cancellations — with sequential numbering and a live preview as you type.
Reminders and Mahnungen run on your schedule — included from the entry plan, not locked behind an expensive tier.
Templates with a live preview, your own logo, colors and layout. Beautiful where clients see it.
§14 UStG, §11 öUStG, §19 small-business and §13b reverse charge come preconfigured — plus US format.
Client management with saved addresses and VAT IDs, and a clear view of what is paid and what is open.
Germany, Austria and the US; German and English. Currency, formats and tax labels adapt automatically.
How does Billy stack up against the tools you may already know? The key difference is in the AI rows: everywhere else, "AI" means receipt recognition or a support chatbot — not an assistant that does the work.
| Billy | sevDesk | Lexware Office | easybill | FastBill | Odoo | |
|---|---|---|---|---|---|---|
| Best for | AI invoicing & automatic dunning (DE/AT/US) | Bookkeeping & invoicing in one tool | Full bookkeeping with ELSTER (Germany only) | E-commerce & marketplaces (Amazon, eBay, Shopify) | VAT filing from the tool & deep template design | Growing companies with ERP needs |
| Document limit | from 50/month; unlimited on Pro | Free: 3 invoices/month; paid unlimited | No limit stated (fair use per T&Cs) | Free: 50/month; Starter: 250/month | No invoice limit stated | No limit — even on "One App Free" |
| Price | from €9 / month | from €12.90 / month | from €12.90 / month (plan M) | Free; from €9 / month | from €9 / month (Solo) | "One App Free"; Standard €19.90 per user/month |
| Invoice from AI prompt | Yescore feature | No | No | No | No | No |
| All features via AI assistant | Yesassistant reaches every feature | Nosuggestions only (receipts, bookings) | Nosuggestions you must accept | NoAI drafts text, you decide | NoOCR; receipts checked manually | NoAI in places (documents) |
| Professional templates | Yesdesigned templates | Yes11 layouts, 6 of them Premium | Partially5 base layouts | Partially2 base layouts you clone | Partiallyeditor with own fonts; Solo: 1 template | Partiallyconfigurable layouts |
| Live preview | Yes | – | Nopreview is a separate step | Nopreview on click | Yes | – |
| Recurring invoices | Yesset up in one sentence | Yes | Yesseries invoices | PartiallyProfessional (€25) and up | PartiallyPro (€27) and up | Yes |
| Automatic email sending | Yesinvoices & reminders, from the entry plan | Partiallyseries invoices optionally automatic; dunning manual | Partiallyseries invoices optionally automatic; no automatic dunning | Partiallyseries from Professional, dunning Premium only | Partiallydunning as a paid add-on | Partiallyfollow-up reminders automatic once configured |
| Bookkeeping | Nodeliberately not | Yesin the accounting plan | Yesplan L and up | No | PartiallyVAT filing yes, EÜR no | Yesaccounting module |
| E-invoicing | NoPDF invoices | Yeseven in the free tier | Partiallysending from plan M | Yeseven in the free tier | Yesin every plan | Yes |
Net prices with annual billing per the vendors’ pricing pages, verified 31 July 2026; Odoo prices vary by country. E-invoicing note: German Kleinunternehmer (§19 UStG) are permanently exempt from the issuing obligation.
Billy’s AI can reach every feature the app has. The assistant creates invoices from plain text, emails them, finds and creates clients, marks invoices as paid, sets up recurring invoices, tells you who still owes you money, and configures automatic payment reminders (Mahnungen).
You stay in control. Routine jobs like recurring invoices and reminders run automatically on your rules; every data-changing action requires your confirmation. Billy never sends anything on its own.
Yes. Once you switch reminders on, Billy checks overdue invoices every day and sends payment reminders and Mahnungen automatically on the schedule you set.
No. Billy is deliberately a focused invoicing app with an AI assistant — no EÜR profit statement, no VAT filing via ELSTER, no DATEV export. If you need that, our invoicing-software comparison shows which tool fits better.
Billy is built for Germany, Austria and the US. Currency, date and number formats, tax labels and payment details adapt to your region automatically. EU mandatory fields are preconfigured.
Yes. Every plan (Founder, Growth, Pro) starts with a 7-day free trial. There is no permanently free plan.