2027 COLA Forecast for Military Retirees: Iran, Tariffs, and Your Pay

For five months the 2027 COLA forecast did nothing but climb. Early in the year one independent analyst pegged it at 1.2%. By mid-June she was at 4.7%. Then June CPI-W fell half a percent, one of the largest one-month drops in five years, and she cut to 3.7%. The other widely followed forecast held at 3.8%.

Then the guessing stopped mattering quite so much. July CPI-W was released on August 12 at 327.104 and August on September 11 at 328.481, which are two of the three months that legally set the number. July came in flat and August rose 0.4%. Together they averaged 327.7925, which was 3.3% above the baseline. A flat September would have given a 3.4% COLA, and one that climbed the way August did would have given 3.5%. Reaching 3.6% needed September alone to jump 0.46%. It jumped 0.66%. September CPI-W came in at 330.654 on October 14 and the COLA landed at 3.6%.

The official number didn't land until October 14, 2026, and it came in a notch above where the summer data pointed. If you're a military retiree, a surviving spouse receiving SBP annuity payments, or a veteran drawing VA disability, the 2027 COLA affects every check you receive starting with the December 31, 2026 payment.

Here's how the forecast stood before the announcement, what drove it, and what the official COLA adds to your monthly pay.

The 2027 COLA Forecast: 3.4% to 3.5% After August

By mid-September the guessing was two thirds over. July 2026 CPI-W was released on August 12 at 327.104, and August followed on September 11 at 328.481. Those are two of the three months that legally set the 2027 COLA. The third, September, came out October 14 at 330.654 and settled it at 3.6%. Here's where things stood before that last reading.

That last line was the news, and it cut both ways. The floor had moved up a long way, since 3.1% would have taken a 0.70% single-month fall, larger than anything in this run. But 3.4% wasn't locked either. A 0.12% September dip would have been enough to lose it, and June 2026 fell 0.5% in a single month.

The Senior Citizens League uses a statistical model that factors in CPI, the Federal Reserve interest rate, and unemployment. Their model sat at 2.8% through April, jumped to 3.9% in May, settled at 3.8% in June, then came down to 3.5% as the actual prints arrived. That was the conservative end of the range in July and the middle of it after August.

Mary Johnson, an independent Social Security and Medicare policy analyst, revised her forecast upward five months running, from 1.2% in February to 1.7% in March, 3.2% in April and 4.7% by mid-June. The original driver was the March energy spike (energy prices jumped 10.9% in a single month, the largest since September 2005, with gas up 21.2% between February and March). For a while the data kept proving her right.

In June she went further, saying there was "a considerable likelihood that it's going to climb even higher than 4.7% as data continues to come in, especially on the gasoline prices." That call did not survive the next release. June CPI-W came in at 327.075, down 0.5% for the month, and she cut her estimate a full point to 3.7%, then to 3.4% after July, before nudging it back up to 3.5% once August came in. She described it as one of the largest month-over-month declines in June CPI data in five years.

After August the spread across the four ran from 3.2% to 3.6%, and the middle of it matched the arithmetic. AARP's 3.6% is the one that landed. July was flat, unchanged for the month before seasonal adjustment and 0.03 points above June. August then rose 0.4%, the first real summer move of the run and what lifted the whole range.

The forecast that looked best placed in August fell away. The Congressional Budget Office projected 3.1% for 2027 back in April, and July landed exactly there, but August moved past it. Getting back to 3.1% would have needed September to fall 0.70% in one month.

The Hard Numbers, March Through September

The Bureau of Labor Statistics released seven CPI-W readings from March through September. Three came in hotter than the last, then June broke the streak and July went flat. August and September climbed again. Only July, August and September count toward the COLA.

The 2027 COLA is set by the average CPI-W from July, August, and September 2026, compared against the Q3 2025 baseline of 317.265. Everything above July is context. July and August were two thirds of the final answer, and together they averaged 3.3% above the baseline. A flat September would have lifted the three-month result to 3.4%.

That left the remaining two months a specific job, and August did its half. It printed 328.481, a rise of 0.42%, faster than the 0.30% it managed the summer before, and that lifted the whole range. September was the last input. Repeating its own 0.26% move from 2025 would have meant 3.5%, and a flat month would have meant 3.4%. It rose 0.66% and the answer was 3.6%.

The 12-month CPI-W detail through May shows what drove the spring run-up. Fuel oil was up 64.1%, gasoline 40.7% and airfare 25%. May marked the fastest 12-month CPI-W pace since April 2023. By summer that energy spike had stopped compounding. June fell half a point and July did not move at all.

Going into September none of this was settled. A 3.6% COLA needed September to jump 0.46%, only a shade more than August managed, while 3.4% needed nothing at all. Getting back to 3.1% would have taken a 0.70% fall in a single month. September jumped 0.66%, which cleared the 3.6% line with room to spare.

How the Military COLA Is Calculated

Military retirement COLA follows the exact same formula as Social Security COLA. There's no separate military calculation. If Social Security gets 2.8%, military retirees get 2.8%. (The one exception: REDUX retirees get COLA minus 1 percentage point.)

The formula:

1. The BLS calculates the average CPI-W for Q3 (July, August, September) of the current year
2. That average is compared to the Q3 average from the prior year (the "baseline")
3. The percentage increase, rounded to the nearest tenth, becomes the COLA
4. COLA is announced in mid-October
5. The increase takes effect December 1
6. Military retirees see it in the December 31 payment, which is the January 1 check paid a day early for the holiday

For 2027, the baseline is the Q3 2025 average CPI-W of 317.265. The Q3 2026 average came in at 328.746, 3.619% above it, which rounds to 3.6%.

Why the result rarely matches the inflation number on the news, and every COLA since 2022 recomputed from SSA's own index values, is in our guide to how the COLA is calculated.

The Iran Oil Shock and Why Gas Prices Spiked

The single biggest factor pushing the 2027 COLA forecast higher was energy prices, and the single biggest factor pushing energy prices higher was the Iran conflict.

The Strait of Hormuz normally carries more than 20% of the world's daily oil supply. When this post first went up on April 21, it had been effectively closed since early March 2026. That day only three ships were recorded crossing the waterway, down from hundreds per day before the conflict began.

The Numbers

The International Energy Agency called this "the largest disruption in history." Physical crude prices briefly spiked near $150/barrel in spot markets, though futures had pulled back by late April.

At the time a fragile two-week ceasefire between the U.S. and Iran was set to expire around April 22 or 23. Analysts warned that if fighting resumed and the strait stayed closed, oil could test $150 or even $200 per barrel in futures markets, which would have pushed gas well above $5/gallon.

Even a lasting deal, analysts said, could take months to get oil shipments back to normal. Either way, the March spike of 10.9% in energy prices was already baked into the data.

Tariff Inflation: The Other Price Driver

Even before the Iran conflict, tariffs were creating upward pressure on consumer prices. The tariffs imposed in 2025 under the International Emergency Economic Powers Act (IEEPA) raised costs on imported goods across multiple categories.

Although the Supreme Court struck down the IEEPA-based tariffs on February 20, 2026, the administration moved quickly to impose them under alternative legal authority. The net effect on consumer prices was real. Through the spring, goods-sector inflation stayed "sticky," meaning prices went up and didn't come back down.

For military retirees, tariff inflation works the same way as any other inflation. It pushes up the CPI-W, which pushes up the COLA. A higher COLA means a bigger raise on the December 31 check, but it also means you're paying more for goods right now.

What the 3.6% COLA Means in Dollars

Here's what the official 3.6% adds to monthly retirement checks, starting with the December 31, 2026 payment, next to the 3.4% to 3.5% the forecast showed after August. Both are per month and rounded down to the whole dollar, the way retired pay is. The pensions are examples of each size, the High-3 amounts on my 2026 retirement pay chart. The full 3.6% goes to retired pay that started before 2026, whatever its amount, and to pay that started January to March 2026. Pay that started later in 2026 gets a smaller first COLA, set by the quarter it started.

September's jump was worth real money. For an E-7 the official 3.6% pays $36 a year more than the 3.5% case and $72 more than a flat September would have. That money keeps compounding, because every future COLA is calculated from the higher base.

VA disability compensation gets the same COLA. A veteran at 100% with no dependents goes from $3,938.58 to $4,080.37 a month starting December 1, 2026, a raise of $141.79.

SBP annuities also get the full COLA. REDUX retirees get 2.6%, the COLA minus 1 percentage point.

Want to see your specific numbers? Run your retirement scenario through our calculator to model the impact of different COLA rates on your lifetime pay.

COLA History and Six Straight Years at 2.5% or More

The 2027 COLA came in at 3.6%, so military retirees have now had at least a 2.5% increase six years running. That hadn't happened since the 1988 to 1997 stretch.

The cumulative effect is big. A retiree who started drawing pay in January 2022 gets about 22% more a month in January 2027, after five COLAs. That's the COLA doing its job, protecting purchasing power through a stretch of above-average inflation.

But "protecting" is the key word. COLA doesn't make you richer. It tries to keep you even. And there's growing evidence it falls short for older retirees, because the CPI-W doesn't weight healthcare costs the way retirees actually experience them.

A Higher COLA Isn't Free Money

A 3.6% COLA sounds good until you look at what it's catching up to. Gas hit $4.09 a gallon in April. Grocery prices crept up as transportation costs got passed through. And Medicare Part B premiums jumped 9.7% for 2026 (from $185 to $202.90), far outpacing the 2.8% COLA that was supposed to cover them.

COLA is a lagging indicator. You pay higher prices for months before the adjustment catches up. And the CPI-W measures spending patterns of urban wage earners, not retirees. Retirees spend a larger share of income on healthcare and housing, both of which have outpaced the CPI-W in recent years.

What You Can Control

• Review your state tax situation. If you're in a state that taxes military retirement, a higher COLA means a higher tax bill. 38 states now exempt military retirement pay from state income tax.
• Check your CRDP/CRSC elections. Your concurrent receipt payments also adjust with COLA. Make sure you're enrolled in the right program. See our CRDP vs. CRSC guide.
• Don't panic-sell TSP. A volatile market is uncomfortable, but moving to the G Fund after a drop locks in losses.
• Factor COLA into your retirement timing. If you're still on active duty, the COLA trap affects your first-year COLA based on which quarter you retire. A higher COLA makes the trap more costly.

Key Dates

That was the last update. The official 3.6% and what it does to your pay are in the 2027 COLA pay increase chart.

FAQ

What is the official 2027 COLA?

3.6%. September CPI-W came in at 330.654 on October 14, 2026, which put the July to September average 3.619% above last year's 317.265. Social Security announced 3.6% the same morning, and the same figure applies to military retired pay, SBP, VA compensation and DIC.

When does the 2027 COLA show up in my check?

It takes effect December 1, 2026. January 1 is a holiday, so DFAS and the VA pay the first retired pay and VA check at the new rate on December 31, 2026. SBP annuities get it January 4, 2027. Here's every 2027 pay date.

Does the 2027 COLA apply to VA disability too?

Yes. VA disability compensation, DIC (Dependency and Indemnity Compensation), and SBP annuities all receive the same COLA percentage as military retirement pay. REDUX is the one exception, and it touches only REDUX retired pay and the SBP annuities paid from it, which get the COLA minus 1%. VA pay and DIC get the full COLA either way.

I'm still active duty. Does this affect me?

Not directly. Active duty raises are set separately through the defense budget, not by the COLA. If you retire in 2027, the COLA applies from your retirement date, and the quarter you retire in matters. See our COLA trap guide.

Where can I see what it does to my pay?

The 2027 COLA pay increase chart has the raise for every rank, the new VA rates and the first-year COLA if you retired in 2026. This post stays up as the record of how the forecast tracked the number.

Related Articles

• The Military COLA Trap and What Your Retirement Month Really Costs
• Tariffs and Your TSP in 2026: A Military Member's Guide
• 2026 Military Retirement and VA Disability Rates
• How to Calculate Military Retirement Pay in 2026

This article is for informational purposes. The forecasts on this page were estimates. The official 2027 COLA is 3.6%, announced by the Social Security Administration on October 14, 2026.