Wondering What to Expect for Next Year's Social Security COLA? Here's What History Says Could Be Coming in 2027

By Matt Frankel, CFP – Mar 16, 2026 at 8:17AM ESTKey PointsRecent estimates call for a 2.8% Social Security COLA in 2027.The Iran conflict has sent energy prices soaring, and this could result in a higher-than-expected COLA. We won't know for sure until the third quarter inflation data is released. Let's be clear. History doesn't really have much of an influence on what next year's Social Security cost-of-living adjustment, or COLA, will be. The current method of calculating the Social Security COLA was established in 1975. Since that time, COLAs have been implemented automatically by comparing consumer prices in the third quarter of one year with prices in the same period the prior year. So, the 2027 Social Security COLA will depend on inflation data from the third quarter of 2026. Since the modern COLA calculation method has been in place, the median annual increase has been 3%, with annual adjustments ranging from 0% to 14.3%. Image source: Getty Images. Recent projections for the 2027 COLA -- and why they'll probably be wrong The Senior Citizens League, which provides one of the most closely watched and highly regarded Social Security COLA estimates, recently predicted a 2.8% increase in 2027. That would be exactly in line with the increase that was implemented for 2026. However, it's impossible to know for sure. And there are two big caveats to keep in mind. The 2.8% estimate is based on what we know at this time. It includes current and projected inflation data, but it's important to realize that we don't have any of the inflation data that will actually be used in the COLA calculation. In fact, initial estimates for the 2026 COLA were far lower than the 2.8% we ended up getting. Second, the 2.8% estimate was made before the Iran conflict escalated and energy prices soared. As of this writing (March 12), oil had risen by 65% in 2026 and by more than 35% so far in March alone. This is significant because energy prices are not only a major component of the Consumer Price Index, which is used to calculate inflation, but also because they can exert inflationary pressures elsewhere in the economy. For example, rising fuel prices mean it will cost grocery stores more to transport their products, and this would likely be passed on to consumers in the form of higher prices. With all of that in mind, we do have some historical context. In the early 1970s, OPEC imposed an oil embargo on the United States, which sent oil prices soaring and triggered an inflation spike. This is actually the situation that led to the automatic Social Security COLA process that remains in place. However, every situation is different, and we have no idea how long the current conflict might last.Read NextMar 16, 2026 •By Stefon WaltersShould You Take Your First RMD in 2026 or Wait Until April 2027?

The Tax Trade-Off ExplainedMar 16, 2026 •By Maurie BackmanThinking of Switching to Medicare Advantage?

Read This First.Mar 16, 2026 •By Johnny RiceHere Are the Top 5 Safest Cities to Retire in 2026Mar 16, 2026 •By Maurie BackmanThe Spousal Social Security Benefit Rule Couples Get Wrong Most OftenMar 16, 2026 •By Christy BieberCan Retirees Claim the New Senior Tax Deduction Even if They Aren't on Social Security?Mar 15, 2026 •By Maurie BackmanMaxed Out Your IRA? Here's What to Do Next.About the AuthorMatt Frankel, CFP, is a contributing Motley Fool stock market analyst specializing in the real estate and financial sectors. Prior to The Motley Fool, Matt taught high school and college mathematics. He holds a bachelor’s degree in physics from the University of South Carolina, a master’s degree in mathematics from Nova Southeastern University, and a graduate certificate in financial planning from Florida State University. He won a SABEW award for coverage of the 2017 Tax Cuts and Jobs Act. He is also regularly interviewed by Cheddar, Globe St, The National Desk, and other TV networks and publications for his real estate, financial, stock market, and investing expertise.TMFMattFrankelX@MattFrankelCFP