The figure was calculated by dividing next year’s projected national tax revenue of 388.3 trillion won by the nation’s estimated population for 2020, which stands at 51.8 million.

Of the total tax revenue, national taxes will account for about 292 trillion won, while local taxes will amount to 96.3 trillion won.

The data also showed that the tax burden per capita will continue to increase annually through 2023. The figure is projected to stand at 8.5 million in 2023, an increase of more than 10 percent from this year, considering the projected national tax income of 442.5 trillion won for the year.

In terms of gross domestic product he nation’s tax burden will drop by 0.4 percentage point next year, from 19.6 percent of GDP to 19.2 percent, the data showed. It will then slowly rebound and eventually reach 19.4 percent in 2023.

Despite the concerns, Korea’s tax burden remains relatively low compared with the average for the Organization for Economic Cooperation and Development member states, which stood at 25 percent in 2015.

According to a government official, the data can be attributed to a slowdown in population growth amid low birth rates.

The government sees Korea’s GDP growth at 3.8 percent in 2020 and 4.1 percent in the following years through 2023.

In contrast, the nation will see 0.14 percent population growth next year, according to Statistics Korea, under the Finance Ministry. The figure will then decline below 0.1 percent in the following years.

Meanwhile, the government’s spending on welfare programs is projected see an annual increase of 8.9 percent through 2023 under the current system, the data also showed.

While the government allocated 106.7 trillion won for welfare spending this year, the figure will eventually reach 150.2 trillion won in 2023 after seeing years of sharp expansion, according to the data.

Of the total spending, money allocated for Korea’s four major state pensions -- for military personnel, civil servants, private school teachers and other residents -- will see an average annual increase of 10.3 percent, the biggest slice of the pie.

Spending on the four pension programs -- which amounted to 46.7 trillion won this year, accounting for nearly half of the total welfare budget -- is projected to reach nearly 69 trillion won in 2023.

By Jung Min-kyung (mkjung@heraldcorp.com)