EXTRA funds worth more than 2 per cent of Singapore's gross domestic product (GDP) will soon be available for government spending each year.

The change, arising from a proposed amendment to the Constitution on spending of investment returns on reserves, will enable government income to keep pace with expenditure.

The latter is set to rise from the current 15 per cent of GDP to 18 per cent in five years' time, and by even more after that.

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