The questions that deserve an honest answer before you give an accounting project your time.
TILL (Trusted Independent Ledger Library) is an open-source, MIT-licensed ERP for Swiss businesses. The books live in a SQLite file on your own machine, and the interface is an MCP server through which an AI agent can trigger the same operations a human triggers in the GUI.
The name stands for Trusted Independent Ledger Library and is also the English word for the cash drawer in a shop.
bexio prices as of 01.03.2026
The core of TILL is MIT licensed and free. It runs entirely on your own machine and needs no subscription to work. A Swiss-hosted cloud tier is planned later as the paid layer, for teams that do not want to run banking, backups and operations themselves.
What that tier will cost is not decided, so we name no price for it. For a sense of what the market charges today: bexio publishes prices from 35 francs a month for Basic to 119 francs for Ultimate.
The MIT licence on TILL permits use, modification, redistribution and commercial deployment, on the single condition that the licence text and copyright notice travel with it. Your own changes do not have to be published. The licence grants no warranty: responsibility for your own bookkeeping stays with you.
TILL is open source and local first: the data sits on your own machine rather than in a vendor cloud, and the code can be read and changed. Its interface is also an MCP server rather than an AI feature inside a GUI. TILL is an independent clean-room project and is not affiliated with bexio AG.
bexio is mature and in production use. TILL is pre-alpha. Anyone who has to keep books today is better served by a finished product.
The Model Context Protocol is an open standard through which an AI agent calls a program’s named tools and gets structured answers back. For accounting software that means an agent can post entries, write invoices and prepare the MWST return without remote-controlling a GUI.
The difference from a chat window inside accounting software is where the capability sits: a chat window is a feature in a product, whereas an MCP server is the product, callable by whichever agent you choose.
A TILL user’s books live in a single SQLite file on their own machine. It can be copied, backed up and read with standard tools without asking anyone for permission. TILL makes no outbound connection of its own.
Precisely: till serve opens a socket on localhost, because that is how the Studio and the MCP server talk. It is guarded so that it rejects requests from outside.
As of July 2026
As of July 2026 TILL is pre-alpha and cannot keep real books yet. Built so far are the ledger core, contacts, products and price lists, the QR-bill, the MWST return, the ISO 20022 import and the MCP server. What is missing is the maturity to use all of it together in production.
As of July 2026
The next milestone for TILL is the ledger itself: the point at which a set of books runs from opening to closing and you would actually file the result. After that the source code opens.
We are not naming a release date. A date we made up would be worse than none.
As of July 2026
No. TILL is pre-alpha and should not be used for real books today. There is no installer, there are no downloads, and there is no commitment to data migration between pre-release versions.
If you want to follow where it goes, the channels are at the foot of every page.
TILL is built by Nomadik GmbH, a Swiss company seated in Männedorf in the canton of Zurich. The full company identification is in the imprint.
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