Gestión WIN is AI Soft Ventures' multi-company business management and accounting software: it issues invoices, tracks stock and keeps the books, and complies with Spain's Verifactu e-invoicing regulation (RD 1007/2023) from day one. Your data lives on your own computer, so you never pay a fee just to keep accessing it and your customers' information never leaves your business. Multi-currency, multi-warehouse and completely free: you only pay if you want annual technical support (€240) or an optional plugin. It installs from the Microsoft Store in a minute and, on a single computer, needs no separate database.
Verifactu (RD 1007/2023) requires Spanish businesses to overhaul their invoicing systems. Traditional business software relies on years of customisations, cloud dependencies and recurring licences charged simply for using it.
Gestión WIN was born compliant with the new regulation, it is free and it only charges for technical support or optional plugins. It was designed from scratch with the regulation in mind, with cryptographic integrity of records and with real-world business operations: multi-company, multi-currency, multi-warehouse.
Gestión WIN runs all its modules on a single database per company, with no intermediate syncing.
Invoices, sales and purchase delivery notes, recurring contracts, line-level or footer discounts and charges, corrective and replacement invoices, and factoring assignment. Series, counters and numbering continuity configurable from day one.
Multi-warehouse with stock adjustments, transfers between warehouses, batches and serial numbers, multiple price lists by customer or product family, and stock movements generated automatically from delivery notes.
Journal entries, postings, accounts and sub-accounts, output and input VAT, received-invoice ledgers, fixed assets and depreciation. Configurable entry templates and direct accounting link from invoicing.
Automatic submission of records to the AEAT (Spanish Tax Agency), dual hash chain (RegistroAlta and Evento), generation of the official QR code and persistence of the submission status.
An independent database per company and currency management with a historical exchange rate per invoice, for accurate bookkeeping.
Bank reconciliation, payment methods, due dates, imported bank statements and links to collections and payments. Partial and amount-based reconciliation.
Users, roles and per-module permissions, logging of access and user changes, environment hardening, database integrity and automatic checks on every start-up.
Products, product families, third parties (customers and suppliers), price lists, payment methods, warehouses, series, counters and issuing banks. The whole shared operational catalogue, in one place.
Set up recurring billing contracts with their schedule (monthly, quarterly, yearly…), lines, due dates and payment method. Gestión WIN generates and sends the invoices automatically and registers each one in Verifactu with no manual intervention.
On a single computer, data is stored in SQLite with nothing else to install. On several office computers, in PostgreSQL (free) or SQL Server, with the Multi-user plugin. Backups in a single zip file with each company's supporting documents, ready to keep on an external drive or USB stick.
Full details, FAQs and sign-up are available (in Spanish) at gestionwin.com →
Gestión WIN models the entire sales and accounting cycle as a single flow, where each document feeds the next without re-entering information or losing traceability.
The quote is prepared for the customer and, once accepted, becomes an order without re-entering any data.
Sales delivery notes are issued, with stock movements generated automatically.
Delivery notes are grouped into an invoice, with discounts, surcharges, multi-currency and VAT rules.
The invoice generates its signed registration record, chained to the previous one, and it is sent to the AEAT.
Due dates are reconciled against bank statements, partially or in full, according to the configured payment method.
The accounting link posts the invoice to the books using entry templates configurable by series.
VAT ledgers, balance sheets and income statements are ready with no extra manual steps.
In accounting, every journal entry keeps its digital fingerprint and its creation or modification event, with a timestamp and user identity.
With the Claude Desktop app installed on your computer and connected to Gestión WIN, you can ask in plain language instead of searching through screens: “Which invoices are still unpaid?”, “How much have I sold this quarter?”, “How much stock of this product do I have left?”.
MCP (Model Context Protocol) is an open standard that lets an AI assistant such as Claude connect to other programs in a controlled way. Gestión WIN includes its own MCP connector: Claude does not access your database on its own, it asks Gestión WIN for what it needs, and Gestión WIN decides what it can see and what it can do. The connector comes with the program and is installed just once on each computer.
Sales by month, customer or product; issued invoices, quotes, orders and delivery notes.
What you are owed and what you owe, due date by due date, and the cash-flow forecast by week or month.
Stock levels by warehouse and the movements of each product.
Sub-account statements, journal entries, trial balance, balance sheet, profit and loss, VAT ledgers and fixed assets.
Leads, opportunities, tickets, tasks and the complete record of each customer.
Received invoices, purchase orders and supplier delivery notes.
By default Claude can only read. Under Configuración → Claude (asistente de IA) (Settings → Claude) you can see its current setting, who changed it and how many changes Claude has made. If you wish, you can allow it to also create and modify data for that company:
The same button switches it back to read-only.
Install Gestión WIN from the Microsoft Store and start using it with no recurring licences. If you want guaranteed support and updates, sign up for technical support. If you need more features, add the plugins you are interested in.
All the invoicing, inventory, accounting and Verifactu features, with no expiry and no artificial limits. Download it and start using it.
Recommended for businesses that want peace of mind: prioritised updates, regulatory adaptations and support whenever you need it.
Each plugin is subscribed to separately at €7.50 a month. Enable only the ones you need and cancel them whenever you like.
Leads, staged opportunities, contacts, tasks and tickets. Sales traceability linked to the invoicing cycle: from first contact to paid invoice.
Book your invoices automatically: the AI reads each invoice, proposes the corresponding journal entry and records it, reducing manual bookkeeping work.
Several office computers working on the same data at the same time, with per-document locking and per-user traceability. Works with PostgreSQL, which is free, or with SQL Server: no database licence costs.
Bills of materials, manufacturing orders, work reports and actual cost calculation. Designed for businesses with their own workshop or assembly.
Technical support plus two plugins of your choice, with a 50% discount that we keep for three years. No lock-in: cancel whenever you like with an email and keep all your data.
Questions about a specific plugin? Write to us and we'll explain it.