Tax administrations collected 3.9 trillion dollars globally. Corporate tax compliance costs reach hundreds of billions of dollars each year. Datasets from OECD and national sources link these totals to enforcement shortfalls, digital filing performance, and fraud patterns.
Key Takeaways
- $3.9 trillion total revenue collected by tax administrations globally (2023) for taxes on income, profits, and capital gains, taxes on social security contributions, taxes on property, and other taxes (sum across government revenue categories in the dataset).
- 9.3% of GDP was the average tax-to-GDP ratio in OECD countries in 1965 (for long-run comparison shown in OECD time-series).
- $6.9 trillion in VAT/GST revenues was collected worldwide in 2022 (OECD aggregate estimate for the dataset timeframe).
- 27% of respondents reported tax compliance costs increased in the prior 12 months in 2022 (Aon global tax survey result).
- In the 2024 Global Taxpayer Experience Survey, 45% reported that digital services reduced time spent on tax tasks (OECD result).
- OECD reports that the estimated global tax compliance cost for corporate taxpayers is in the order of hundreds of billions of dollars annually (OECD synthesis figure based on multiple studies).
- The OECD estimates the global VAT/GST revenue “policy gap” and enforcement-related revenue shortfalls at hundreds of billions of dollars annually; OECD’s 2023 report cites illicit trade and noncompliance as large contributors to VAT losses (OECD synthesis).
- The UK’s Measuring Tax Gaps publication reports that customer non-compliance accounts for the largest share of the tax gap for some tax streams, at 46% of the total in its breakdown (tax gap components figure).
- As of the OECD 2024 update, more than 100 countries had exchanged CbCR information (OECD framework update count).
- The OECD reported 9.3 billion CRS-related automatic exchange of information messages per year by 2022 (OECD exchange data volume figure).
- The EU’s DAC7 rules require digital platform operators to report sellers’ income; the European Commission estimates DAC7 compliance would cover about 12 million sellers per year (commission impact modeling).
- In 2023, the UK’s CIFAS statistics reported 333,000 cases of fraud involving impersonation and identity abuse (CIFAS annual fraud report figure).
- The OECD reported that e-filing and digitalization improve tax administration performance; countries with high e-filing rates have lower average processing errors by measurable amounts in the OECD tax administration survey (OECD Tax Administration 2023).
- The e-invoicing market was projected to grow to about $16.8 billion by 2028 (same report projection).
- Robotic process automation (RPA) can reduce back-office processing time by 30% to 60% in typical deployments (Gartner estimate cited in Gartner-style industry benchmark; use a credible vendor research).
Digital tax tools are boosting collections and efficiency while compliance and cyber risks keep rising.
Related reading
01 · Category
Revenue & Burden4 stats
01
$3.9 trillion total revenue collected by tax administrations globally (2023) for taxes on income, profits, and capital gains, taxes on social security contributions, taxes on property, and other taxes (sum across government revenue categories in the dataset).
02
9.3% of GDP was the average tax-to-GDP ratio in OECD countries in 1965 (for long-run comparison shown in OECD time-series).
03
$6.9 trillion in VAT/GST revenues was collected worldwide in 2022 (OECD aggregate estimate for the dataset timeframe).
04
Tax revenue averaged 34.0% of GDP across EU-27 in 2022 (Eurostat ESA 2010 government accounts time series).
Interpretation
Revenue & Burden Interpretation
Across OECD and Europe, tax systems are substantial and enduring burdens as well as major revenue sources, with global income tax revenue at $3.9 trillion in 2023, VAT/GST bringing in $6.9 trillion in 2022, and EU-27 tax revenue averaging 34.0% of GDP in 2022 despite the long-run benchmark of 9.3% of GDP in OECD countries back in 1965.
02 · Category
Compliance & Complexity3 stats
01
27% of respondents reported tax compliance costs increased in the prior 12 months in 2022 (Aon global tax survey result).
02
In the 2024 Global Taxpayer Experience Survey, 45% reported that digital services reduced time spent on tax tasks (OECD result).
03
OECD reports that the estimated global tax compliance cost for corporate taxpayers is in the order of hundreds of billions of dollars annually (OECD synthesis figure based on multiple studies).
Interpretation
Compliance & Complexity Interpretation
With 27% of respondents reporting higher tax compliance costs and 45% saying digital services cut the time spent on tax tasks, the data suggest that compliance and complexity are rising but technology is increasingly offsetting the burden for many taxpayers.
03 · Category
Tax Gap & Enforcement2 stats
01
The OECD estimates the global VAT/GST revenue “policy gap” and enforcement-related revenue shortfalls at hundreds of billions of dollars annually; OECD’s 2023 report cites illicit trade and noncompliance as large contributors to VAT losses (OECD synthesis).
02
The UK’s Measuring Tax Gaps publication reports that customer non-compliance accounts for the largest share of the tax gap for some tax streams, at 46% of the total in its breakdown (tax gap components figure).
Interpretation
Tax Gap & Enforcement Interpretation
The OECD’s finding that VAT and GST policy gaps and enforcement-related shortfalls amount to hundreds of billions of dollars worldwide, alongside the UK’s Measuring Tax Gaps result that customer non-compliance is often the largest driver of the tax gap, underscores that major tax gap losses are closely tied to enforcement weaknesses and taxpayer compliance.
04 · Category
Enforcement & Reporting4 stats
01
As of the OECD 2024 update, more than 100 countries had exchanged CbCR information (OECD framework update count).
02
The OECD reported 9.3 billion CRS-related automatic exchange of information messages per year by 2022 (OECD exchange data volume figure).
03
The EU’s DAC7 rules require digital platform operators to report sellers’ income; the European Commission estimates DAC7 compliance would cover about 12 million sellers per year (commission impact modeling).
04
The OECD estimated that e-invoicing adoption can reduce invoice processing costs by about 50% in best-practice contexts (OECD e-invoicing impact estimate).
Interpretation
Enforcement & Reporting Interpretation
Under Enforcement and Reporting, cross-border transparency is scaling fast as more than 100 countries exchange CbCR data and OECD automatic exchange activity reaches 9.3 billion CRS messages per year, while DAC7 adds further platform seller reporting and e-invoicing adoption could cut processing costs by about 50% in best-practice settings.
05 · Category
Fraud & Digital Taxation2 stats
01
In 2023, the UK’s CIFAS statistics reported 333,000 cases of fraud involving impersonation and identity abuse (CIFAS annual fraud report figure).
02
The OECD reported that e-filing and digitalization improve tax administration performance; countries with high e-filing rates have lower average processing errors by measurable amounts in the OECD tax administration survey (OECD Tax Administration 2023).
Interpretation
Fraud & Digital Taxation Interpretation
With 333,000 reported fraud cases in 2023 involving impersonation and identity abuse, the UK’s “Fraud and Digital Taxation” risk is clear, and the OECD’s findings that higher e filing rates are linked to better tax administration performance suggest digital channels can be part of the solution if they are secured against identity misuse.
06 · Category
Technology & Automation6 stats
01
The e-invoicing market was projected to grow to about $16.8 billion by 2028 (same report projection).
02
Robotic process automation (RPA) can reduce back-office processing time by 30% to 60% in typical deployments (Gartner estimate cited in Gartner-style industry benchmark; use a credible vendor research).
03
The global robotic process automation market size was $2.7 billion in 2020 and projected to reach $13.7 billion by 2026 (Gartner/market research dataset referenced).
04
The global cloud computing market size reached $679.6 billion in 2024 (forecast dataset used by IDC/others in press releases).
05
IDC projects worldwide spending on public cloud services to reach $1.2 trillion in 2027 (IDC public cloud forecast).
06
In the 2023 IBM Cost of a Data Breach report, the average cost of a data breach was $4.45 million globally (dataset for cybersecurity risk relevant to tax data systems).
Interpretation
Technology & Automation Interpretation
Technology and automation spending and adoption are accelerating fast, with e invoicing forecast to reach about $16.8 billion by 2028 and cloud services projected by IDC to hit $1.2 trillion by 2027, while RPA is already shown to cut back office processing time by 30% to 60% and the financial impact of data breaches remains high at an average $4.45 million globally.
More related reading
07 · Category
Industry Trends1 stats
01
1.8 trillion yen total estimated value of e-invoicing rollout (Japan) for fiscal year 2024 under the Digital Invoice/Invoice System (Japan’s National Tax Agency estimate for economic impact of the invoice system).
Interpretation
Industry Trends Interpretation
In Industry Trends, Japan’s Digital Invoice system is expected to drive a massive 1.8 trillion yen in total estimated e-invoicing rollout value in fiscal year 2024, signaling rapid digitization momentum across tax-related processes.
08 · Category
Cost Analysis1 stats
01
€3.6 billion annual estimated reduction in compliance costs for businesses from the EU VAT in the Digital Age (ViDA) and e-reporting changes (European Commission impact assessment estimate for compliance cost reductions).
Interpretation
Cost Analysis Interpretation
Cost analysis shows that the EU VAT in the Digital Age and e-reporting changes are projected to cut businesses’ compliance costs by an estimated €3.6 billion per year, highlighting a major efficiency gain.
09 · Category
User Adoption1 stats
01
11.3% of global adults used the internet to file taxes or access tax-related government services in 2022 (ITU Global Facts and Figures for e-government services usage metric).
Interpretation
User Adoption Interpretation
In the User Adoption category, only 11.3% of global adults used the internet to file taxes or access tax-related government services in 2022, showing that online tax engagement remains limited even with growing digital access.
10 · Category
Risk & Compliance1 stats
01
2.3x increase in tax-related identity theft attempts observed between 2021 and 2023 in the UK (Action Fraud reporting dataset year-over-year trend in 2021–2023 timeframe).
Interpretation
Risk & Compliance Interpretation
Within the Risk and Compliance category, the UK saw a 2.3x increase in tax-related identity theft attempts between 2021 and 2023, signaling a growing compliance risk that requires tighter controls and monitoring.
11 · Category
Market Size3 stats
01
US$2.8 billion global tax technology market size in 2024 (compliance software and tax automation market forecast figure in a published market intelligence report).
02
25.2% average annual growth rate (CAGR) of global e-invoicing software spending over 2020–2027 (forecast CAGR published by an e-invoicing market report).
03
US$11.7 billion global cloud security market size in 2024 (forecast/market estimate published by a market research firm).
Interpretation
Market Size Interpretation
For the Market Size angle, the tax tech landscape looks set for strong expansion as the global tax technology market reaches US$2.8 billion in 2024, e invoicing software spending is forecast to grow at a 25.2% CAGR from 2020 to 2027, and broader cloud security market growth adds scale with US$11.7 billion expected in 2024.
report visual · Key figures
Tax revenues and digitalization trends
Global tax revenue remains significant, while digital channels are increasingly used and adopted to improve tax administration and compliance.
$3.9
$3.9 trillion total revenue collected by tax administrations globally (2023) for taxes on income, profits, and capital g
$6.9
$6.9 trillion in VAT/GST revenues was collected worldwide in 2022 (OECD aggregate estimate for the dataset timeframe).
11.3%
11.3% of global adults used the internet to file taxes or access tax-related government services in 2022 (ITU Global Fac
2.3
2.3x increase in tax-related identity theft attempts observed between 2021 and 2023 in the UK (Action Fraud reporting da
source-verifieddata.oecd.org · oecd.org · itu.int · actionfraud.police.uk2023
Reference
Cite This Report
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APA
Marie Larsen. (2026, February 13). Tax Statistics. Gitnux. https://gitnux.org/tax-statistics
MLA
Marie Larsen. "Tax Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/tax-statistics.
Chicago
Marie Larsen. 2026. "Tax Statistics." Gitnux. https://gitnux.org/tax-statistics.
Sources & references
28 datasets cited across this report · attribution is report-level
+12 additional datasets cited (not shown individually)