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Keel Sync
Sales & invoicing

Invoicing software for small and growing businesses

Issue invoices that look professional and match what your customers and accountant expect, then see who has paid, who hasn't and what is overdue without opening a spreadsheet.

Price: Included in the free core. Sales & Purchase Orders is €19.99 a month.

The Keel Sync invoices screen: document numbers, customers, dates, totals, amounts remaining and payment status

What you can do with Sales & invoicing

Invoices and sales receipts

Pick the customer, add products or services, and the totals, VAT and numbering are done for you. Sales receipts cover sales that are paid on the spot.

Advance invoices, debit notes and delivery notes

Take a deposit with an advance invoice and settle it on the final invoice, charge an additional amount with a debit note, and send goods with a delivery note.

Documents that look like yours

Choose a Classic, Modern or Compact template, or design your own with the drag-and-drop editor. Add your logo, stamp and signature, and sign PDFs digitally with your company certificate.

Print in your customer's language

Work in one language and print a document in another. Each document prints in the language you choose.

Payments and open items

Record payments against one or several invoices, see what is overdue at a glance, and print an open-items statement for any customer.

From order to invoice

With Sales & Purchase Orders, a sales order becomes packages, a shipment and an invoice without re-typing a line.

Questions people ask

Can I issue advance invoices and delivery notes?

Yes. Advance invoices, debit notes and delivery notes are built in, alongside regular invoices, sales receipts and credit notes.

Can invoices print in another language?

Yes. Each document prints in the language you choose, whichever language you work in.

Is invoicing free?

Yes. Invoices, sales receipts, credit notes, customers, products and payments are all part of the free core.

More modules

Set up for your type of business

Create your company and issue your first invoice today

The core is free: invoices, receipts, bills, customers, products and your books. Add point of sale, inventory or payroll when you need them.

Add-ons are billed monthly and paid by bank transfer.