Melso

Melso is built for autónomos in Spain who would rather not deal with a traditional gestoría. You send a voice note or message on WhatsApp, for example asking for a 1,200 euro invoice to a client, and the agent prepares a draft with VAT and IRPF worked out for you to approve in the app. Expenses come in from photos, email and connected Google Drive, and the app shows a monthly summary of income and spending. Quarterly returns such as Form 303 and the annual Renta are prepared by Melso's tax professionals, approved by you in the app and filed with the AEAT, with the receipt delivered back. Melso says it pays any surcharge caused by its own mistake. The Pro plan is 49 euros a month, with the first month at 24.50, and includes autónomo registration. You can also connect Claude through an MCP server. The app and WhatsApp agent work in English. Melso, Inc. runs the service.