Social Security beneficiaries are already looking ahead to the 2027 cost-of-living adjustment (COLA), which will determine how much monthly benefits increase next year. The official COLA is expected to be announced by the Social Security Administration (SSA) in October 2026, after the government releases the inflation data needed to complete the calculation. While the final percentage is not yet known, several early projections are already being discussed. However, beneficiaries should remember that these estimates can change significantly before the official announcement. The COLA is tied to inflation, so the final adjustment depends on CPI-W data recorded during the third quarter of 2026. For retirees and other Social Security recipients, even a relatively small percentage change can make a noticeable difference to monthly household budgets.
WHEN WILL THE 2027 COLA BE ANNOUNCED?
The SSA typically announces the annual COLA in October, and the Senior Citizens League, a nonprofit that advocates for older Americans, expects the 2027 COLA announcement on October 14. The adjustment is based on inflation data from July, August and September, so the final figure cannot be determined until the September data is released. The timing of the official announcement depends on the Bureau of Labor Statistics’ release of September’s Consumer Price Index data, which is October 14 and will complete the final piece needed for the COLA calculation.
HOW IS THE SOCIAL SECURITY COLA CALCULATED?
The COLA is based on the Consumer Price Index for Urban Wage Earners and Clerical Workers, or CPI-W. The SSA calculates the average CPI-W for July, August and September and compares it with the average from the same three months of the previous year. If the new average is higher, Social Security benefits receive a corresponding increase. This means the COLA is not based on a simple annual inflation rate. The calculation specifically uses third-quarter CPI-W data.
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WHEN WILL THE 2027 INCREASE TAKE EFFECT?
Although the 2027 COLA will be announced in October, beneficiaries will have to wait a little longer before seeing the higher payments. The increase will apply to Social Security benefits in December 2026 but payable in January of the following year. For Supplemental Security Income (SSI) recipients, payments are generally scheduled for the first day of each month. Because January 1, 2027, falls on New Year’s Day, a federal holiday, the January SSI payment is expected to be issued early on December 31, 2026.WHAT COULD THE 2027 INCREASE BE?
Current inflation readings and early projections indicate that Social Security beneficiaries could receive a larger COLA in 2027 than the 2.8% increase approved for 2026. The Senior Citizens League currently projects a 3.6% COLA for next year. If that estimate ultimately becomes the official adjustment, it would represent a noticeable increase over this year’s boost. However, the 3.6% figure remains only a projection and is not yet official. Beneficiaries will need to wait for the SSA’s expected October 14 announcement, as per Senior Citizens League, to learn the final percentage. The eventual COLA will depend on the remaining inflation data used in the calculation, including the CPI-W figures for August and September. According to the latest data cited by The Motley Fool, the CPI-W rose 3.4% year over year in July. Subsequent readings could push the projected COLA higher or lower before the SSA determines the final 2027 adjustment.
The 2027 Social Security COLA will be one of the most important updates for millions of beneficiaries as they plan their finances for the coming year. The official adjustment is expected to be announced on October 14, 2026, after September inflation data allows the SSA to complete its calculation. The COLA is determined using the average CPI-W readings from July, August and September and comparing them with the previous year’s figures. Beneficiaries should keep their fingers crossed, as early projections can provide a glimpse of the possible increase. However, these estimates can still change before the SSA releases the official COLA figure.
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