How do discount rates affect pensions?
Andrew Mclaughlin
Published Feb 16, 2026
Thus, if a pension plan has a duration of 15, a one percentage point decrease in the discount rate (from 6% to 5 %, for example) would be expected to increase the value of the benefit obligation by approximately 15%.
What is a pension discount rate?
The discount rate is the long-term interest rate used to fund future pension benefits. The discount rate is also known as the assumed rate of return because it’s what CalPERS expects its investments to earn during the fiscal year.
What is the current discount rate for pension plans?
The discount rate is used to allocate the cost of future benefits over time, to answer the basic question “how much should we contribute today so we hit our funding target in the future?” Most public pension plans use a discount rate between 7 percent and 8 percent (the average is 7.6 percent).
Are low interest rates good for pension funds?
Protracted low interest rates will impact pension funds and insurance companies by affecting re-investment returns on their fixed-income portfolio. If low interest rates are expected to be permanent, lower interest income in particular will impact insurers with long- term liabilities and shorter-term assets.
Why do discount rates matter?
The discount rate allows investors and other to consider risk in an investment and set a benchmark for future investments. The discount rate is what corporate executives call a “hurdle rate,” which can help determine if a business investment will yield profits.
How is pension duration calculated?
To apply the formula for duration to pension liabilities, for every 100 basis point (bp) change in interest rates, the liability changes by duration divided by 100 in the opposite direction. The typical pension plan has a duration of about 15.
Why does decreasing the discount rate immediately increase the PBO?
There is an inverse relationship between the discount rate and the present value of a future sum. Thus, the increase in the discount rate resulted in an actuarial gain (lower PBO).
What do low interest rates mean for pensions?
Although many pension plans adopt a lower-risk strategy for those approaching retirement, investing in assets such as bonds, if interest rates drop, or turn negative, the value of bonds would decrease. Therefore this could mean a drop in pension value for those closer to retirement.
What is duration in pensions?
It is the sum of all expected payments, measured at current day value, that defines an actuarial liability. The duration of benefit payments expected in a retirement plan provides a framework, as interest rates change, for approximating changes to actuarial liability.
What is duration time?
1 : continuance in time gradually increase the duration of your workout. 2 : the time during which something exists or lasts were there for the duration of the concert.
What is the difference between discount rate and interest rate?
An interest rate is the rate you can expect to pay for borrowing money, or the rate of return you expect from an investment. Discount rate refers to the rate used to determine the present value of cash.