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The Platform for Collaboration on Tax

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www.tax-platform.orgUpdated

A joint international platform coordinating IMF, OECD, UN, and World Bank expertise to strengthen tax systems and domestic resource mobilization.

Overview

The Platform for Collaboration on Tax (PCT) is a joint initiative of the International Monetary Fund, the Organisation for Economic Co-operation and Development, the United Nations, and the World Bank Group that seeks to strengthen domestic resource mobilization by coordinating guidance, tools, and capacity-building for tax policy and administration in developing and emerging countries. It brings together the four partners to share knowledge and support reform across areas such as tax policy, revenue administration, and broader tax system reform through analytical work, knowledge products, workshops and training, and a global tax projects database.

Mission statement

To support countries’ efforts to improve revenue mobilization by leveraging the expertise of the four Partner Organizations, and to develop guidance and tools to assist countries with tax system reforms, focusing on environmental taxation, international taxation, and Medium-Term Revenue Strategies.

What we offer

Tax Projects Database

Gain insights and access current tax-related projects for global collaboration.

Pricing not published

www.tax-platform.org/countries-map

Tax Incentives Principles

Enhances tax incentive effectiveness while mitigating risks for improved governance and revenue stability.

Pricing not published

www.tax-platform.org/publications/tax-incentives

Toolkit on Tax Treaty Negotiations

Empowers developing countries with essential tools and resources to enhance tax treaty negotiation capabilities.

Pricing not published

www.tax-platform.org/publications/PCT_Toolkit_Tax_Treaty_Negotiations_Online_Version

Mapping Tools (Tax Tools and Frameworks)

Facilitates effective tax system reforms through comprehensive mapping of tools and frameworks.

Pricing not published

www.tax-platform.org/tax-tools-and-frameworks/mapping-tools

Market segments

Market size by segment

Growth potential (CAGR)

Revenue administration diagnostics and reform

2 Billion USD7.5% CAGR

Capabilities that provide diagnostic assessments, stage‑aligned tool mapping, and implementation guidance to assess gaps and drive tax administration and system reforms in developing countries.

Products: Mapping Tools (Tax Tools and Frameworks), Tax Projects Database

Tax incentives design and evaluation

1.2 Billion USD6.5% CAGR

Frameworks and guidance to justify, design, implement, and evaluate tax incentives to maximize development impact while mitigating fiscal, distributional, and governance risks.

Products: Tax Incentives Principles

Tax treaty negotiation capacity building

Practical guidance, training content, and operational checklists to prepare for, conduct, and follow up bilateral tax treaty negotiations consistent with UN and BEPS guidance.

Products: Toolkit on Tax Treaty Negotiations

Insights Management and Research Repository

1.2 Billion USD9% CAGR

Centralized analytics and knowledge management that consolidates research across projects, supports cross‑project analysis and smart tagging, and provides shareable dashboards with compliance controls.

Products: Tax Projects Database

Tax capacity building and learning

0.8 Billion USD6% CAGR

Open learning and training resources, including courses and event calendars, designed to strengthen skills of policymakers and tax officials across policy design, administration, and evaluation.

Products: Tax Incentives Principles, Toolkit on Tax Treaty Negotiations, Mapping Tools (Tax Tools and Frameworks)

More information about our offering

Tax Projects Database

An extensive database that brings together domestic resource mobilization activities and projects by PCT partner organizations. It enables search by country, region, or organization and provides insights into opportunities for global collaborations. The database lists projects that are ongoing as of May 2025.

Pricing not published

  • Access Comprehensive Data
    Leverage comprehensive project data sourced from major international partners for informed decision-making.
  • Identify Collaboration Opportunities
    Utilize the database to discover potential partnerships and enhance collaboration among stakeholders globally.
  • View Ongoing Projects
    Stay updated with projects actively working on domestic resource mobilization efforts and their current statuses.
  • Search Tax Projects Easily
    Effortlessly locate relevant projects based on geographic or organizational parameters.

Tax Incentives Principles

The Tax Incentives Principles (TIPS) provide aspirational guidelines for governments to develop the rationale for tax incentives, ensuring better design, implementation, and evaluation. They address common risks like revenue loss, economic distortions, and governance challenges throughout the entirety of a tax incentive's lifecycle, enhancing domestic resource mobilization and supporting development goals.

Pricing not published

  • Maximize Benefits, Minimize Risks
    Provides strategic guidance to help governments gain social gains from tax incentives without jeopardizing revenues.
  • Structured Framework For Design
    Guides countries on critical stages from justification to evaluation of tax incentives.
  • Support for Developing Countries
    Addresses specific challenges in the context of low- and middle-income countries, ensuring relevant guidance.
  • Accessible Online Learning
    Allows users to engage with material anytime, increasing accessibility and reach.
  • Comprehensive Lifecycle Approach
    Ensures that governments comprehensively address all aspects of tax incentives, enhancing efficacy.

Toolkit on Tax Treaty Negotiations

A comprehensive toolkit and course to provide capacity-building support to developing countries on tax treaty negotiation. Built on the UN Manual for the Negotiation of Bilateral Tax Treaties and BEPS context, it aims to reduce duplication and inconsistencies, offering tools for preparation, conduct, and follow-up; web-based and regularly updated with a shared calendar of training events.

Pricing not published

  • Enhance Negotiation Skills
    Offers essential frameworks and tools tailored for capacity-building in tax treaty negotiations.
  • Align with Global Standards
    Ensures that the toolkit is relevant and in sync with established international tax standards.
  • Streamline Negotiation Processes
    Covers all essential phases of tax treaty negotiations to facilitate effective outcomes.
  • Ensure Accessibility and Relevance
    Enables users to access the latest tools and updates conveniently and efficiently.
  • Centralize Training Opportunities
    Provides a consolidated resource for upcoming training events to enhance negotiation skills.

Mapping Tools (Tax Tools and Frameworks)

Mapping of Tools and Frameworks to Support Tax System Reform (TSR), including TSR stages and a catalog of diagnostic, data gathering, and implementation tools used to guide tax reform efforts.

Pricing not published

  • Align Tools with Tax Reform Stages
    Ensures that available tools are appropriately matched to each phase of tax system reform, enhancing efficiency and effectiveness in implementation.
  • Access Comprehensive Data Collection Tools
    Utilizes a wide variety of data tools that help evaluate tax administrations and generate necessary data for informed decision-making in tax reform.
  • Assess Tax Administration Effectively
    Provides a comprehensive suite of diagnostic tools designed to evaluate the effectiveness of current tax systems and identify areas needing improvement.
  • Guide Tax System Implementation
    Offers resources aimed at improving tax administration through targeted implementation strategies, facilitating practical reform efforts.

Sources

Methodology and sourcing behind the figures and links shown above.

Revenue administration diagnostics and reform

Estimate based on observed multilateral project budgets for tax administration reform (single projects commonly range from a few million to ~20M USD), multiplied by the typical number of active donor-funded and government modernization programs globally, plus expected uplift from digitalization and COVID-driven acceleration of e-tax transformation. Sample World Bank project financing and disbursement figures inform the lower/mid-range per-project scale; aggregating across bilateral, multilateral, and domestic reform projects yields an annual market on the order of $1–3B (midpoint $2.0B). Growth CAGR ~7.5% reflects sustained donor attention, rising digital/IT spend in tax administrations, and expanding demand for diagnostics, tool-mapping and implementation support.

Tax incentives design and evaluation

Estimates draw on observed expansion in the use and spending on R&D tax incentives across OECD countries (rising uptake, some countries’ incentive expenditures increasing by ~25%) and the increasing number of jurisdictions adopting such instruments (34 of 38 OECD countries by 2024). Given the niche nature of 'tax incentives design and evaluation' (policy design, monitoring, evaluation, and advisory services) it is a small subset of broader tax-consulting and public‑policy evaluation spend: aggregated global annual demand for these specialized services plausibly sits around $1.2B (order‑of‑magnitude), supported by advisor/consultant fees, program evaluation contracts, and in‑house government implementation costs. Continued uptake, greater emphasis on evaluation and evidence (OECD/World Bank attention), and more complex incentive design imply moderate growth potential; a mid‑single-digit CAGR (~6.5%) is consistent with rising program adoption and expanding evaluation budgets.

Insights Management and Research Repository

Estimated by aligning the niche “insights management and research repository” with broader repository and cloud-repository software markets and adjacent clinical/research tool markets in the search results. Repository management and cloud-based repository services reports show mid-single to high-single digit CAGRs (5.9%–9.1%); enterprise/healthcare research tooling and archiving markets range from low-single to double-digit billions. As a specialized enterprise/market-research software niche (analytics, tagging, dashboards, compliance) it likely represents a small share of the overall repository/software category; I estimate ~$1.2B current market size with growth potential near the repository-software CAGR (~9%).

Tax capacity building and learning

Search results show active multilateral initiatives (PCT) launching e‑learning and many bilateral/multilateral agencies providing tax capacity support (GSDRC), and reporting that capacity building yields large revenue benefits (Bloomberg). The segment is a niche within international technical assistance, combining donor-funded programs, consultancy/training providers, and growing e‑learning offerings. Based on the number of providers, typical donor TA envelopes, and expansion of online learning, a conservative annual market estimate is ~USD 0.8 billion with moderate digital-driven growth (≈6% CAGR).

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