TIPS are issued by the U.S. government and, like other Treasury securities you may add to a portfolio, are backed by the full faith and credit of the federal government. However, there’s a major difference: Unlike regular Treasuries, TIPS are adjusted for inflation based on the consumer price index (CPI).
Yes, inflation does affect bonds and can be the “enemy” of bondholders. Consider a traditional bond that pays 3 percent while inflation is only 1 percent. Your purchasing power is positive since your return is greater than inflation. However, if inflation is 4 percent during the life of the bond, despite having a positive return, your bond has not kept up with inflation and your purchasing power falls.
TIPS can help lessen how inflation affects bonds by providing a potential for a total rate of return that adjusts with inflation.
The principal amount of TIPS is linked to CPI, published by the Bureau of Labor Statistics, adjusted for three months prior. The inflation-adjusted principal value will not be realized until the issue matures or is sold.
For example, say you own TIPS valued at $10,000 with a coupon of 5 percent. Normally, that would result in income of $500 for the year (TIPS issue interest payments twice a year).
TIPS may seem like an obvious choice to help protect against inflation, but they have pros and cons.
Generally, TIPS outperform traditional government bonds when inflation is higher than the market expects. And they underperform traditional U.S. government bonds when inflation is lower than market expectations.
Interest payments from TIPS are subject to federal tax but exempt from state and local taxes. In addition, the amount of increase in principal value is considered taxable income at the federal level, though exempt from state and local taxes. That can create the “phantom income” effect: Increases in principal are taxed when they occur, not when they are actually realized.
Read more about the effects of inflation on investments.