Melso

Melso

Melso, Inc.
Taxcalibur

Taxcalibur

ASL LLC
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+

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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

Taxcalibur is a Windows desktop tax-preparation and practice-management app for small tax practices. It organizes client records, returns, documents, checklists, reminders, contact notes, invoices and receipts, with encrypted client data stored on the user's device. For return preparation, it removes personal details before AI document reading, calculates federal Form 1040 and Colorado DR 0104 returns, fills official forms, and presents calculations for preparer review. Users can import PDFs, Word files and phone photos, track return stages, identify missing documents, send follow-up emails, and print forms and client summaries. Completed packages are handed off to Drake Tax for filing; Taxcalibur does not file returns. AI reading uses the preparer's own Claude account or connected assistant, and AI usage and Drake Tax are separate. The app supports 14 interface languages, while official IRS forms remain in English.

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 Not 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

Small tax preparation practices that file with Drake Tax

Support

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

Support

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

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

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

$99.99 one-time
Taxcalibur is a $99.99 one-time purchase; a free trial is available. AI-provider account or usage costs and Drake Tax are separate.
Free Version Not Supported
Free Trial 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 Not Supported
In Person Not Supported

Company Information

Melso, Inc.
United States
melso.ai/en

Company Information

ASL LLC
Founded: 2017
United States
autosecurelogin.com/products/taxcalibur.html

Alternatives

Alternatives

Drake Tax

Drake Tax

Drake Software
4.5 out of 5 stars
ATX

ATX

Wolters Kluwer
1.0 out of 5 stars
Altiria SMS

Altiria SMS

Altiria
SIGMA 1040-TW

SIGMA 1040-TW

Sigma Tax Pro

Categories

Tax Preparation Supported

Categories

Tax Preparation Supported

Integrations

Claude Code Supported
Codex CLI Supported
Cursor Supported
Drake Tax Not Supported
Gmail Supported
Google Drive Supported
Model Context Protocol (MCP) Supported
WhatsApp Supported

Integrations

Claude Code Not Supported
Codex CLI Not Supported
Cursor Not Supported
Drake Tax Supported
Gmail Not Supported
Google Drive Not Supported
Model Context Protocol (MCP) Not Supported
WhatsApp Not Supported
Claim Melso and update features and information
Claim Melso and update features and information
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