| 3M SORA benchmark | CPF-OA benchmark | |
|---|---|---|
What is it? | The 3-month Singapore Overnight Rate Average, or 3M SORA, is a market-based benchmark based on actual overnight borrowing transactions between banks in Singapore. | The CPF-OA interest rate is reviewed quarterly and is subject to a legislated minimum of 2.50% p.a. |
How does the rate behave? | It may rise or fall with market interest rates and economic conditions. | It is reviewed quarterly but has remained at its legislated minimum of 2.50% p.a. since 1999. |
When and where is it published? | 3M SORA rates are published daily on the MAS website at 9 a.m. | The CPF-OA interest rate is published on the CPF website. |

Yes, if you ask Eric and Jean! The couple previously financed their 4-room HDB flat with the HDB Concessionary Loan but wanted to switch to a bank loan with a lower interest rate to reduce their monthly repayments.
They sought advice from a POSB Home Advice Specialist who introduced them to the POSB 3-Year CPF-OA HDB Loan. As its rates are pegged below the stable and transparent CPF-OA rate, they could save about S$3,100 a year in interest1 for the first three years, while continuing to enjoy rates below the HDB rate thereafter.
As Eric and Jean decided to switch to a POSB HDB Loan by 31 October 2026, they will receive S$2,300 in cash rewards, comprising S$2,000 in Refinancing Cash Rewards and a S$300 Bonus Cash Reward.

Yes, especially if you want to enjoy both savings and stability! Meet Denise and Isaac who are preparing to receive the keys to their first HDB flat. As they plan to start a family, they want to keep their monthly repayments manageable.
The couple consulted a POSB Home Advice Specialist to learn about the new POSB 3-Year CPF-OA HDB Loan. Based on a S$400,000 loan repaid over 20 years, they realised that they could save about S$18,500 in interest compared with the HDB Concessionary Loan.
| POSB 3-Year CPF-OA HDB Loan | HDB Concessionary Loan | |
|---|---|---|
Average monthly payments | S$2,062 | S$2,139 |
Total interest | S$94,891 | S$113,397 |
The couple will also receive S$300 in shopping vouchers when they apply for our HDB Loan by 31 Oct 2026.