Social Security Cost-of-Living Adjustment: Two Conflicting Forecasts Leave Millions Guessing About 2027 Raise

Millions of Americans relying on Social Security benefits face an anxious wait as two major advocacy groups offer competing forecasts for their 2027 pay rise. The estimates suggest retirees could receive an additional $68 (£51) or $75 (£57) a month. With the official cost-of-living adjustment (COLA) announcement expected on Wednesday, 14 October, beneficiaries are just days away from learning how much their monthly payments could increase next year.

The Senior Citizens League predicts a 3.5% increase, while AARP expects a slightly higher adjustment of 3.6%. Although the difference appears small, the competing estimates highlight the uncertainty surrounding next year's benefits as Americans continue to grapple with rising living costs.

Why Two Major Groups Disagree

The Senior Citizens League revised its September forecast downwards to 3.5%, reversing its earlier prediction of 3.6% in August. According to the organisation, that increase would add approximately $67.90 (£51.37) to the average monthly benefit, raising payments from $1,940.08 (£1,467.65) to $2,007.98 (£1,519.02).

AARP, meanwhile, moved in the opposite direction, raising its projection from 3.5% to 3.6% following the latest inflation figures. Its forecast suggests the average retired worker could receive approximately $75 more each month, although neither estimate has been confirmed by the Social Security Administration.

Both organisations based their projections on available inflation data, with September's figures expected to determine the final adjustment.

What a $68 or $75 Increase Means for Retirees

Under The Senior Citizens League's forecast, beneficiaries receiving the group's estimated average payment could gain approximately $815 (£617) annually. AARP's projection suggests an additional $900 (£680) a year for the average retired worker, based on its separate benefit calculations.

However, these estimates use different starting benefit amounts and should not be interpreted as two guaranteed payment options. For someone currently receiving $2,000 (around £1,512) a month, a 3.5% adjustment would increase their benefit to $2,070 (£1,565), while a 3.6% rise would bring it to $2,072 (£1,567).

Both forecasts exceed the 2.8% COLA implemented in 2026, potentially delivering the largest percentage adjustment since 2023. The actual amount beneficiaries receive will depend on their existing payments and applicable deductions, including Medicare premiums.

How Adjustment Is Calculated

The Social Security Administration is expected to reveal the official 2027 COLA on Wednesday, 14 October, following the release of September inflation data. The adjustment is calculated using the Consumer Price Index for Urban Wage Earners and Clerical Workers, known as CPI-W.

Officials compare average inflation figures from July through September with those from the corresponding period of the previous year. The resulting percentage determines how much eligible Social Security benefits increase, with higher payments due to begin in January 2027.

The adjustment also affects Supplemental Security Income recipients, alongside retired workers, eligible survivors and people receiving disability benefits.

October 2026 Social Security Payment Schedule

The announcement coincides with the first regular October payment date for beneficiaries whose birthdays fall between the 1st and 10th of the month. Recipients born between the 11th and 20th are scheduled to receive payments on 21 October, while those born between the 21st and 31st will receive theirs on 28 October.

Different schedules apply to certain long-standing beneficiaries and Supplemental Security Income recipients. October payments will not include the anticipated 2027 increase, which is due to take effect next year.