The government will be borrowing $4 billion from the public on May 28 to help finance this year's budget.
The funds will be raised through a benchmark investment note that matures in nearly 10 years.
Investors will receive an annual interest rate of 7.5 per cent, with a minimum purchase of $1,000.
The interest earned will be taxed at a rate of 25 per cent.
On the same day, the government will also seek to raise an additional $1 billion through another benchmark investment note.
That offering will pay a higher interest rate of 8.25 per cent per year and carries the same minimum investment and tax rate.
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