Denmark leads the list of the world’s most taxed countries, with tax revenue accounting for 45.3% of its Gross Domestic Product (GDP) as of September 2026.

Close behind are Bulgaria and Sweden, registering tax revenues at 38.8% and 38.7% of GDP, respectively. African nations also feature prominently near the top, with Namibia recording 35.3% and Eswatini standing at 30.7%. Iceland ranks fifth overall with 33.4%, followed by New Zealand at 32.6% and Norway at 31.3%.

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European nations occupy the majority of the remaining positions. Luxembourg accounts for 30.6% of GDP, Finland reaches 30.4%, while Italy and Belgium share an identical rate of 29.6%.

Non-European countries on the list include Canada at 29.5% and Australia at 29.4%. Montenegro rounds out the ranking with a tax-to-GDP ratio of 29.0%.

GDP represents the total monetary value of all goods and services produced within a country over a specific time period.

In this context, tax revenue figures incorporate income, corporate, property, sales, and other tax levies, while social contributions remain excluded from the totals.