The Bureau of the Treasury (BTr), in an auction held last September 15, 2009, set the following interest rates (subject to 20% final withholding tax except for Tax Exempt Institutions):
3-year RTBs - 5.25 % p.a.
5-year RTBs - 6.25 % p.a.
7-year RTBs - 7.00 % p.a.
Minimum purchase - P5K. multiples of P5K
Although the offering period is until September 24, 2009, the BTr has the option to cut this short if it has already met its target sales volume. Hence, early purchase of RTBs is advised.
I think DBP is currently selling but this might only be opened within the week. Per last year's experience the purchase period was only 4 days since it was oversubscribed.