The increase is modest compared to a projected 6.1 percent rise in GDP before inflation for 2015, and far less than a 10.3 percent rise in treasury bond issuance set for 2014.
The ministry said in a statement new treasury bond issuance, excluding issues to repay maturing paper, would amount to 43.0 trilion won in 2015, compared with a net 38.2 trillion won worth allocated this year.
South Korea sells new treasury bonds through weekly auctions for maturities of three, five, 10, 20 and 30 years. The ministry said it would try to distribute the issuance as evenly as possible each month.