comtax

COMTAX® SYSTEM

The COMTAX® System allows you to instantly calculate the transaction ways in order to repatriate dividends, interest, royalties or fees from a subsidiary to its parent, or to another subsidiary in a group. The 30 top results will be displayed in descending order.

Built for Tax Professionals

Corporate Tax Teams

Streamline international tax planning and compliance across your global operations

Tax Advisors

Deliver accurate cross-border guidance with comprehensive jurisdiction coverage

Multinational Enterprises

Optimize tax structures and ensure compliance across 125+ jurisdictions

The Challenge

International tax planning requires navigating complex treaty networks, withholding tax rules, and rapidly changing legislation across multiple jurisdictions—all while managing compliance risk and optimizing tax efficiency.

  • Manual Complexity?

    Hours spent researching treaty provisions and tax rates across jurisdictions

  • Cross-Border Uncertainty

    Difficulty comparing scenarios and determining optimal tax structures

  • Compliance Risk

    Exposure to penalties from outdated or incorrect tax information

  • Fragmented Tax Data

    Reliance on scattered spreadsheets and inconsistent data sources

Core Capabilities

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Calculate cross-border corporate tax liability

30 top results displayed in descending order!

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Seven kinds of cross-border payments

Calculate cross-border tax liability on payment of dividend, interest (inter-company and financial institutions), royalty (trademark, patent and copyright), and fees (management and technical services).

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COMTAX® Capital Gains Module

In the System, it is possible to make simulations covering the tax effects of cross-border sales of shares.

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Group structure

A group structure reflecting ownership can be built into the project as a condition for the calculation when it comes to dividend payments.

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COMTAX® Tax guide

Useful information under relevant topics for analyzing the simulations is to be found in the Commentary database.

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Print or export

Every major function in the System is associated with a Print and an Export function.

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Customize Country tab

In some situations you might wish to include one country more than once in the same project. This enables you to accommodate two or more companies operating in the same country that can be used with a transfer country in between in cross-border transactions.

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COMTAX® Ratefinder

As an overview, the Ratefinder contains the information on Dividends, Interest, Royalties, and Fees that we have seen in the Database in a more user-friendly environment.

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COMTAX® Database

The Database covers information on corporate tax rates, withholding tax rates, whether an outgoing payment is deductible or not, whether an incoming income is taxable or not, and the tax credit method applied.

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COMTAX® Transfer Pricing Tool

This tool serves a double function: first, it allows you to record the transactions between my group companies, so that you can have all the relevant information easy at hand for reporting purposes; second, it lets you see how the use of different transfer pricing methods affects the financial image of the companies involved.

How It Works

1

Select Jurisdictions

Choose source and destination countries

2

Define Transaction

Specify payment type and amount

3

Apply Tax Rules

COMTAX intelligent tool calculates tax liability

4

Compare Scenarios

Review alternative structures

5

Export Results

Generate reports and documentation

Key Benefits

Transform how your team approaches international tax planning with tools designed for accuracy, efficiency, and confidence.

  • Reduce research time by up to 75% with instant access to tax data
  • Minimize compliance risk with regularly updated legislative data
  • Increase accuracy with automated calculations and built-in validation
  • Scale globally with consistent methodology across all jurisdictions
  • Support strategic decisions with scenario modeling and comparisons
  • Improve audit readiness with comprehensive documentation trails

Output & Deliverables

Detailed Reports

Comprehensive analysis with effective tax rates

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Scenario Comparisons

Side-by-side structure analysis

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Exportable Files

Print or share with colleagues

Why COMTAX®

35+ Years Experience

Trusted by tax professionals worldwide since 1989, with a proven track record in international tax technology

Global Expertise

Built by tax experts with deep knowledge of treaty networks and cross-border taxation

Purpose-Built Platform

Designed specifically for corporate tax teams and advisors handling complex international matters

Ready to Transform Your Tax Planning?

Join leading multinational enterprises and tax advisors who rely on COMTAX® for accurate, efficient cross-border tax analysis.