OECD, Tax Revenues Rebounded as Economies Recovered From the COVID-19 Pandemic:

Revenue Statistics 2022, which presents tax revenue data for the second year of the COVID-19 pandemic, shows that the OECD average tax-to-GDP ratio rose by 0.6 percentage points (p.p.) in 2021, to 34.1%, the second-strongest year-on-year increase since 1990. The report also shows that tax-to-GDP ratios increased in 24 of the 36 OECD countries for which 2021 data on tax revenues was available, declined in 11 and remained unchanged in one.

Tax revenues increased by 12.8% in nominal terms on average across the OECD between 2020 and 2021 as economies rebounded from the pandemic, exceeding nominal post-pandemic GDP growth (10.5%).