Melso

Melso

Melso, Inc.
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About

Melso is an online accounting and tax service for freelancers and self-employed people in Spain, combining an AI agent, web-based tax tools and human tax professionals. It helps users organize invoices and expenses, review income and costs, follow a tax calendar, and get answers about Spanish tax procedures through the app or WhatsApp. Users can connect email and Google Drive to find records, and authorize compatible AI clients through OAuth and Model Context Protocol (MCP) to access business records and prepare work. Melso’s professionals prepare and review returns included for each customer’s activity and tax profile. Customers approve the exact draft in the app before the professionals file it with Spain’s tax agency; covered forms and services depend on the agreed scope. The AI agent can draft invoices and issue them after customer authorization, subject to account permissions and service prerequisites.

About

UltimateTax is a professional tax preparation software platform used by tens of thousands of tax preparers annually that centralizes robust tools for preparing, reviewing, and electronically filing U.S. federal and state tax returns while helping practices manage client data, compliance, and office workflows with reliability and support for both cloud and desktop environments. It provides interview-style data entry that guides preparers through client interviews, smart diagnostics to catch potential errors before e-filing, automatic prior-year data carry-forward, form-linking for efficient navigation, and support for all 50 states and a wide range of return types, including individual 1040, corporate, fiduciary, partnership, and other miscellaneous forms. UltimateTax offers multiple product tiers, including Online 1040, Desktop 1040, Pay-Per-Return, and combined 1040 + Corporate packages, so firms of different sizes can choose the workflow that fits them.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Freelancers and self-employed people in Spain.

Audience

Professional tax preparers, accounting practices, and tax offices that need robust tax preparation software to handle individual and business tax returns, diagnostics, e-filing, and data management

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

€49/month
Pro is €49 per month or €490 billed annually (€40.83/month). It includes an AI agent, invoicing and expense management, and professional preparation and filing of returns within the agreed tax-service scope. Included filings depend on the customer's tax profile and are confirmed before subscription.
Free Version Not Supported
Free Trial Not Supported

Pricing

$388 per year
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Company Information

Melso, Inc.
United States
melso.ai/en

Company Information

UltimateTax
Founded: 2006
United States
ultimatetax.com

Alternatives

Alternatives

SIGMA 1040-TW

SIGMA 1040-TW

Sigma Tax Pro
ATX

ATX

Wolters Kluwer
UltraTax CS

UltraTax CS

Thomson Reuters

Categories

Tax Preparation Supported

Categories

Tax Preparation Supported

Integrations

ATX Not Supported
Claude Code Supported
Codex CLI Supported
CrossLink Not Supported
Cursor Supported
Drake Tax Not Supported
Gmail Supported
Google Drive Supported
Intuit ProSeries Tax Not Supported
Model Context Protocol (MCP) Supported
TaxAct Not Supported
TaxSlayer Not Supported
TaxWise Not Supported
WhatsApp Supported

Integrations

ATX Supported
Claude Code Not Supported
Codex CLI Not Supported
CrossLink Supported
Cursor Not Supported
Drake Tax Supported
Gmail Not Supported
Google Drive Not Supported
Intuit ProSeries Tax Supported
Model Context Protocol (MCP) Not Supported
TaxAct Supported
TaxSlayer Supported
TaxWise Supported
WhatsApp Not Supported
Claim Melso and update features and information
Claim Melso and update features and information
Claim UltimateTax and update features and information
Claim UltimateTax and update features and information