Book and fix in Bexio — at Excel speed.
Two tools in one: Speed-Journal for bulk bookings pasted from Excel, and Scan & Fix to find and bulk-correct existing Bexio bookings. Securely connected via Bexio's OAuth.
| # | Datum | Beleg | Beschreibung | Soll | Haben | MWST | Betrag CHF | ||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 01.01.2026 | 2026-001 | Büromaterial | 4900 Büromaterial | 1029 Bank ZKB | 8.1% | 150.00 | ||
| 2 | 05.01.2026 | 2026-002 | Telefonrechnung Januar | 6500 Kommunikation | 1029 Bank ZKB | 8.1% | 89.90 | ||
| 3 | 10.01.2026 | 2026-003 | Miete Büro Januar | 6000 Raumaufwand | 1029 Bank ZKB | — | 2'500.00 | ||
| 4 | 25.01.2026 | 2026-004 | Lohnzahlung | 5000 Lohnaufwand | 1029 Bank ZKB | — | 4'800.00 | ||
| 5 | Neue Zeile | ||||||||
- Copy-paste straight from Excel, CSV or Google Sheets
- Keyboard navigation like Excel
- Free for one company
How it works
What Arithma does
Bulk bookings by copy-paste
Copy booking rows from Excel, CSV or Google Sheets and paste them straight into the grid — Bexio turns them into manual entries.
Scan & Fix
Search existing Bexio bookings and bulk-correct them, instead of opening each one by hand.
Secure Bexio connection
Signs in via Bexio's official OAuth. Your credentials are never stored in plain text.
Multiple mandates
Built for fiduciaries managing several Bexio accounts — switch between clients without re-authenticating.
CHF only, bookkeeping only
No bloat: one row is one booking. Built for speed, not feature sprawl.
Completely free
No subscription, no trial period, no credit card. Arithma offers this as a contribution to the Swiss bookkeeping community.
Pricing
Free for your company. Paid only for multiple clients.
For a single company, Arithma is completely free. Managing several Bexio accounts in one login is available on request.
Free
For one company with one Bexio account.
- Speed-Journal & Scan & Fix
- Unlimited bookings
- No credit card required
For fiduciaries
Manage multiple Bexio accounts in one login.
- Multiple mandates / Bexio accounts
- Invite clients
- Personal support
Fiduciary services
What you can hand over to us
From an ongoing mandate to a one-off setup — you choose what we take on.