Invoices that get you paid —
and post themselves.
Professional, IVA 23%-correct invoices in seconds. Quotes that become invoices in one click. Every payment — full, partial or split — tracked to the last decimal, with real double-entry posted behind the scenes.
Quote → invoice → paid
one connected flow, no re-typing
4-decimal unit prices
totals that match your price list exactly
Posted automatically
every invoice writes its own journal entry
Look professional. Bill in seconds.
The document your customer sees is the document that runs your books — branded, correct and instant.
- ✓ Branded invoices — your logo and layout via the print designer, shared as PDF, email or link.
- ✓ Quotes that convert — send an estimate, and one click turns the accepted quote into an invoice.
- ✓ Catalog-powered lines — items fill descriptions, prices and IVA 23% rates for you, precise to 4 decimals.
- ✓ Discounts done right — line-level or invoice-level, amount or percent, reflected correctly in IVA 23% and in the ledger.
- ✓ IVA 23% per line — inclusive or exclusive to match how you price, with reverse charge where it applies.
Every payment, tracked honestly.
Getting paid is rarely one tidy transfer. OneBooks models the messy reality without losing a cent.
- ✓ Partial payments — record what actually arrived; the balance due stays exact.
- ✓ Split settlements — one payment can settle several invoices at once, allocated automatically.
- ✓ Receivables aging — who owes what and for how long, always current, straight from the ledger.
- ✓ Credit notes — returns post the correct revenue and IVA 23% reversals for you, with refunds as an explicit step.
- ✓ Write-offs done properly — bad debt books as an expense in the period it went bad, not a silent deletion.
Accounting-grade under the hood.
Every invoice is also a journal entry. That's what makes the reports true and the auditors calm.
- ✓ Automatic double-entry — sending an invoice posts balanced ledger lines instantly; nothing to book by hand.
- ✓ Corrections by reversal — voiding keeps history intact instead of erasing it.
- ✓ Compliance built in — IVA 23% on every line, and in Saudi Arabia invoices clear through ZATCA Phase 2 automatically.
- ✓ AI drafting, human posting — describe an invoice in one sentence and the assistant drafts it; nothing posts until you confirm.
- ✓ Customer records with history — every invoice, payment and balance in one place.
Invoicing — common questions
Can I turn a quote into an invoice?
Yes — one click converts an accepted quote into an invoice, keeping its lines and discount, so agreement becomes billing without re-typing.
Does OneBooks support partial payments?
Fully. Record any amount against an invoice and the balance due stays exact; a single payment can also be split across several open invoices, allocated automatically.
Can I customize how invoices look?
Yes — the print designer lets invoices and documents carry your logo and layout, and you can share them as PDF, by email or as a link.
Can the AI assistant create invoices?
It drafts them: describe the invoice in plain language (or in chat with a customer name and items) and review the draft. Nothing is posted until you explicitly confirm — and AI has no delete capability at all.
Send your first invoice in minutes.
Start free, add your logo, and send an invoice that posts its own accounting.