CPIA efficiency of revenue mobilization rating in Tonga
Tonga: CPIA efficiency of revenue mobilization rating was 4 1=low to 6=high in 2025. ▲ Rising
CPIA efficiency of revenue mobilization rating in Tonga, 2005–2025
Source: CPIA database, World Bank Group (WBG). Measured in 1=low to 6=high.
Analysis
The most recent figure for cpia efficiency of revenue mobilization rating in Tonga is 4 1=low to 6=high, measured in 2025.
Compared with earlier readings it is unchanged over ten years.
Over the whole period, cpia efficiency of revenue mobilization rating in Tonga peaked at 4.5 1=low to 6=high in 2010 and was at its lowest, 3 1=low to 6=high, in 2005.
That places Tonga 6th out of 84 countries with data for 2025, putting it in the top 10%.
The long-run direction has been consistently rising across the 21 years of available data.
CPIA efficiency of revenue mobilization rating in Tonga, year by year
| Year | 1=low to 6=high | Change |
|---|---|---|
| 2005 | 3 1=low to 6=high | — |
| 2006 | 3 1=low to 6=high | +0.0% |
| 2007 | 3 1=low to 6=high | +0.0% |
| 2008 | 3 1=low to 6=high | +0.0% |
| 2009 | 4 1=low to 6=high | +33.3% |
| 2010 | 4.5 1=low to 6=high | +12.5% |
| 2011 | 4 1=low to 6=high | -11.1% |
| 2012 | 4 1=low to 6=high | +0.0% |
| 2013 | 4 1=low to 6=high | +0.0% |
| 2014 | 4 1=low to 6=high | +0.0% |
| 2015 | 4 1=low to 6=high | +0.0% |
| 2016 | 4 1=low to 6=high | +0.0% |
| 2017 | 4 1=low to 6=high | +0.0% |
| 2018 | 4 1=low to 6=high | +0.0% |
| 2019 | 4 1=low to 6=high | +0.0% |
| 2020 | 4 1=low to 6=high | +0.0% |
| 2021 | 4 1=low to 6=high | +0.0% |
| 2022 | 3.5 1=low to 6=high | -12.5% |
| 2023 | 3.5 1=low to 6=high | +0.0% |
| 2024 | 4 1=low to 6=high | +14.3% |
| 2025 | 4 1=low to 6=high | +0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 3.2 1=low to 6=high | 3 1=low to 6=high | 4 1=low to 6=high | 5 |
| 2010s | 4.05 1=low to 6=high | 4 1=low to 6=high | 4.5 1=low to 6=high | 10 |
| 2020s | 3.83 1=low to 6=high | 3.5 1=low to 6=high | 4 1=low to 6=high | 6 |
Countries ranked near Tonga
- 6 Benin 4 1=low to 6=high compare
- 6 Bolivia, Plurinational State of 4 1=low to 6=high compare
- 6 Bosnia and Herzegovina 4 1=low to 6=high compare
- 6 Cape Verde 4 1=low to 6=high compare
- 6 Cote d'Ivoire 4 1=low to 6=high compare
- 6 India 4 1=low to 6=high compare
- 6 Kosovo 4 1=low to 6=high compare
- 6 Mauritania 4 1=low to 6=high compare
- 6 Mozambique 4 1=low to 6=high compare
- 6 Senegal 4 1=low to 6=high compare
- 6 Tajikistan 4 1=low to 6=high compare
- 6 Togo 4 1=low to 6=high compare
- 6 Viet Nam 4 1=low to 6=high compare
- 6 Zimbabwe 4 1=low to 6=high compare
More public sector data for Tonga
- Arms imports 7.00 million SIPRI trend indicator values (2020)
- Arms imports (SIPRI trend indicator values), per capita 66.22 SIPRI trend indicator values per person (2020)
- Arms imports (SIPRI trend indicator values), per unit of GDP 0.0138 SIPRI trend indicator values per US$ of GDP (2020)
- Arms imports (SIPRI trend indicator values), gaps filled 7.00 million SIPRI trend indicator values (2020)
- Arms imports (SIPRI trend indicator values), per square kilometre 9,722 SIPRI trend indicator values per square kilometre (2020)
- Tax revenue 20.5% (2023)
- Taxes on income, profits and capital gains 8.9% (2023)
- Taxes on goods and services 30.0% (2023)
- Net investment in nonfinancial assets 6.8% (2023)
- Net lending (+) / net borrowing (-) 5.3% (2023)
Frequently asked questions
- What is cpia efficiency of revenue mobilization rating in Tonga?
- Cpia efficiency of revenue mobilization rating in Tonga was 4 1=low to 6=high in 2025, according to CPIA database, World Bank Group (WBG).
- What is the highest cpia efficiency of revenue mobilization rating recorded in Tonga?
- The highest recorded value was 4.5 1=low to 6=high in 2010.
- What is the lowest cpia efficiency of revenue mobilization rating recorded in Tonga?
- The lowest recorded value was 3 1=low to 6=high in 2005.
- How does Tonga rank for cpia efficiency of revenue mobilization rating?
- Tonga ranks 6th out of 84 countries with data for 2025.
- Is cpia efficiency of revenue mobilization rating rising or falling in Tonga?
- Over the last ten years it is unchanged. The long-run trend across the full record is rising.
- Where does this Tonga data come from?
- The figures come from CPIA database, World Bank Group (WBG), published as part of CPIA efficiency of revenue mobilization rating (1=low to 6=high). Statizoid updates them automatically from the source API.
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About this data
The Country Policy and Institutional Assessment (CPIA) measures the extent to which a country’s policy and institutional framework supports sustainable growth and poverty reduction, and consequently the effective use of development assistance. The outcome of the exercise yields both an overall score and scores for sixteen criteria that compose the CPIA. These criteria include: A. Economic Management (1. Monetary and Exchange Rate Policies; 2. Fiscal Policy; 3. Debt Policy and Management), B. Structural Policies (4. Trade; 5. Financial Sector; 6. Business Regulatory Environment), C. Policies for Social Inclusion/Equity (7. Gender equality; 8. Equity of public resource use; 9. Building human resources; 10. Social protection and labor; 11. Policies and institutions for environmental sustainability), D. Public Sector Management and Institutions (12. Property rights and rule-based governance; 13. Quality of budgetary and financial management; 14. Efficiency of revenue mobilization; 15. Quality of public administration; 16. Transparency, accountability, and corruption in the public sector). This Efficiency of Revenue Mobilization criterion assesses the overall pattern of revenue mobilization, not only the tax structure as it exists on paper, but revenue from all sources as they are collected. Separate sub-ratings are provided for (a) tax policy and (b) tax administration.