OneBooks - Online Accounting SaaS for Freelancers and Small Businesses
OneBooks
What is it?
Bookkeeping that works for you
OneBooks is an online accounting platform for freelancers and small businesses. You handle your entire bookkeeping from one clear workspace — from sending sales invoices to automatically reading purchase invoices with AI.
No complicated software, no expensive accountant for the daily tasks. OneBooks keeps your books up to date so you can focus on running your business.
What's included?
Features
Everything you need
From invoicing to VAT returns — OneBooks has all the tools a small business owner needs every day.
Customer and supplier management
Manage all your customers and suppliers in one place. The right contact details and payment history are always right at hand.
Sales invoices
Create and send them as a PDF by email in your own branding. Professional and ready for your customer right away.
Purchase invoices via AI
Scan and recognize purchase invoices automatically, even in bulk. The AI reads the details and processes them right away — no more manual entry.
Quotes
Create and send professional quotes straight from the system. Turn them into an invoice with one click as soon as the job is yours.
VAT overviews
Always ready for your tax return. OneBooks automatically calculates your VAT position per period, ready to file.
Dashboard & overviews
Insight into your finances at a glance. Open invoices, expected income and expenses — everything neatly on one screen.
Process purchase invoices automatically
Upload your purchase invoices — one at a time or in bulk — and OneBooks automatically recognizes the supplier, the amount, the VAT, and the invoice date. The AI books the details straight into your records, without you having to type in a single number.
Automatic recognition
Supplier, amount, and VAT read instantly
Bulk upload
Process several invoices at once
Always correct
Check and confirm with one click
Supports PDFs, photos, and scans — even of hard-to-read invoices.
Getting started
Up and running in 3 steps
No lengthy implementation, no technical hurdles. You're up and running within minutes.
Set up your account
Online right away, active within 5 minutes. No installation, no technical knowledge required. Just sign up and get started.
Add customers & suppliers
Enter them once, and they're automatically available for every invoice or quote. Importing from an existing list is possible too.
Send & track invoices
Send invoices, follow up on payments, and keep everything on record. OneBooks automatically tracks what's been paid and what's still open.
For everyone
What fits you?
Simple bookkeeping without an accountant
As a freelancer you want to focus on your work, not your paperwork. OneBooks handles the day-to-day bookkeeping for you — no accountant needed for the daily tasks.
- Send invoices in your own branding
- Process purchase invoices automatically
- VAT return in a few clicks
- Overview of outstanding payments
- Cancel monthly
from €2.50/mo
Professional invoicing for small teams
For small businesses with several employees, OneBooks offers one central place for all bookkeeping. Everyone works from the same system, always up to date.
- Multiple users in one account
- Professional quotes and invoices
- Bulk processing of purchase invoices
- Insight per period and per customer
- Scales as you grow
from €4.50/mo
Pricing
Choose your plan
Every plan includes all OneBooks features. The difference is in the limits on customers, invoices, and quotes. Adjust monthly.
Starter
- Customers / suppliers: 50 active
- Sales invoices: 50 per month
- Purchase invoices: 50 per month
- Quotes: 50 per month
Small
- Customers / suppliers: 100 active
- Sales invoices: 100 per month
- Purchase invoices: 100 per month
- Quotes: 100 per month
Medium
- Customers / suppliers: 250 active
- Sales invoices: 250 per month
- Purchase invoices: 250 per month
- Quotes: 250 per month
Large
- Customers / suppliers: 500 active
- Sales invoices: 500 per month
- Purchase invoices: 500 per month
- Quotes: 500 per month
Unlimited
- Customers / suppliers: Unlimited
- Sales invoices: Unlimited
- Purchase invoices: Unlimited
- Quotes: Unlimited
All prices are excl. VAT. Cancel monthly. No one-time setup fees.
Combine with a business phone system
Alongside OneBooks, VoiceOne also offers hosted VoIP phone systems for freelancers and small businesses. One provider for both your bookkeeping and your business phone — clear and affordable.
See business phone systemsFrequently asked questions
All about OneBooks
Have a question that isn't answered here? Feel free to get in touch.
OneBooks is designed for freelancers, sole proprietors, and small businesses that want to keep their books simple and affordable. Whether you send 5 or 500 invoices a month — there's always a plan that fits.
Yes, you can import your existing customer and supplier list. Contact our support team if you need help migrating from your current accounting software.
You upload a PDF, photo, or scan of a purchase invoice. The AI automatically reads the supplier, the amount, the VAT, and the invoice date. You check the details and confirm with one click. This works in bulk too — upload and process several invoices at once.
You can upgrade to a bigger plan at any time. It takes effect immediately and is prorated. That way you only ever pay for what you actually need.
Yes, you can set your company logo, colors, and contact details. All sales invoices and quotes are automatically styled in your branding and sent as a PDF by email.
No. OneBooks can be canceled monthly with no notice period. There are no one-time setup fees either. You only pay for the months you use it.
All your data is stored encrypted on servers in the Netherlands. Backups are made daily and access is protected with two-factor authentication. Your data is never shared with third parties.
Ready to simplify your bookkeeping?
Start with OneBooks today and keep your books simple and organized.