With the 2027 Social Security cost-of-living adjustment (COLA) expected to be announced on Oct. 14, 2026, financial advisors are using the run-up to push clients beyond the headline percentage. The real question, they say, is whether a client's entire retirement income stream—after taxes, Medicare premiums, and portfolio withdrawals—can sustain purchasing power in an environment where inflation pressures are broad-based.
The Social Security Administration will calculate the 2027 COLA using third-quarter 2026 inflation data from the Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W). Recent estimates from The Senior Citizens League, independent analyst Mary Johnson, and AARP project increases of 3.6%, 3.4%, and 3.5%, respectively. That would follow the 2.8% adjustment for 2026, which reached 75 million beneficiaries. A 3.6% COLA would add roughly $75 to the average monthly benefit of $2,086 as of July 2026.
For advisors, the announcement is less a finish line than a prompt for a comprehensive review. "Advisors can use this time to review expected spending needs, cash reserves, and the mix of income sources supporting retirement," said Jason Frain, head of retirement solutions at Transamerica. He emphasized that with 401(k)s and other retirement accounts serving as the second-largest source of retirement income for many retirees, evaluating withdrawal strategies and tax implications is critical. "Regular reviews can help clients understand how Social Security, 401(k) accounts, and other sources work together," he added.
The pressure on retirement income extends beyond Social Security. New York Fed research recently found that tariffs added 2.9 percentage points to goods inflation, affecting every income source. Jonathan Codispoti, president and founder of Legacy Wealth Strategies, plans to tell clients that the percentage matters less than what actually reaches their bank account. "Looking at COLA in isolation is not a good idea without looking at taxes, Medicare premiums, healthcare expenses, and lifestyle expenses," he said. "A retiree can have an increase in Social Security benefits but the expenses that matter most to them could be rising faster."
Medicare is a prime example. The standard monthly Part B premium rose from $185.00 to $202.90 for 2026, and that premium is usually deducted directly from Social Security checks. The 2027 premium, typically announced in mid-November, often rises by a higher percentage than the COLA. So clients may not know their true net raise for several weeks after Oct. 14.
Codispoti sorts retirement income into three groups: guaranteed, fairly predictable, and market-dependent. That framework helps identify which pieces are designed to grow over time. "If Social Security is one of the only income sources receiving an inflation adjustment, the client's purchasing power may gradually become more dependent on portfolio withdrawals," he warned. That dependence is limited—Morningstar's latest research indicates retirees can withdraw as much as 3.9% in 2026, though strategies can allow more.
Beyond Social Security, Codispoti recommends reexamining the full income structure, including cash reserves and fixed income. "Cash reserves are important in retirement. They allow flexibility. Fixed income deserves another look as well," he said, noting that advisors should review yields, duration, maturity schedules, and whether the bond allocation still meets its intended purpose. He also cautioned against treating income needs as static: "A client might say, 'I need $10,000 a month,' but the real planning question is: What does $10,000 a month need to become 10, 15, or 20 years from now?"
Taxes complete the picture. "Advisors should also revisit the client's tax strategy because it's ultimately after-tax income—not gross income—that funds retirement," Codispoti said. This aligns with broader industry trends, as advisors shift focus to spending strategies in a retirement landscape with $51.2 trillion in assets. The COLA announcement, while a single data point, serves as a catalyst for these deeper conversations.
