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

For five months the 2027 COLA forecast did nothing but climb. In January one independent analyst pegged it at 1.2%. By mid-June she was at 4.7%. Then June CPI-W fell half a percent in a single month and she cut to 3.7%, one of the largest one-month drops in five years. 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 July is the first of the three months that legally set the number. It came in flat, and it sits 3.1% above the baseline it is measured against. Holding there through September gives a 3.1% COLA. Repeating last summer's rise gives 3.4%. The published 3.7% and 3.8% estimates now need August and September to run more than twice as hot as they did a year ago.

The official number won't land until October 2026, but the data released so far tells a clear story. If you're a military retiree, a surviving spouse receiving SBP annuity payments, or a veteran drawing VA disability, the 2027 COLA will affect every check you receive starting in January 2027.

Here's where the forecast stands right now, what's driving it, and how much it could add to your monthly pay.

The 2027 COLA Forecast: 3.1% to 3.4% After July

The guessing is half over. July 2026 CPI-W was released on August 12 at 327.104, and it is the first of the three months that legally set the 2027 COLA. Two more to go.

That last line is the news. The two widely followed forecasts were both published before this release and both now look high.

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, and settled at 3.8% in June. That was the conservative end of the range at the time. After July it is the optimistic one.

Mary Johnson, an independent Social Security and Medicare policy analyst, revised her forecast upward five months running: 1.2% in February, 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). The data since then has 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%. She described it as one of the largest month-over-month declines in June CPI data in five years.

The gap between the two forecasts is a tenth of a point. Both were set before July's print, and both assume prices resume climbing through the summer. July gave no sign of that: the index was unchanged for the month before seasonal adjustment, and it finished 0.03 points above June.

The forecast that now looks best placed is the one nobody was quoting. The Congressional Budget Office projected 3.1% for 2027 back in April, before the spring energy spike, and July landed exactly there.

The Hard Numbers: CPI-W Through July

The Bureau of Labor Statistics has released five CPI-W readings since the spring energy spike began. Three came in hotter than the last, then June broke the streak, and July went flat. Only the last row counts 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 itself is one third of the final answer, and it landed 3.1% above the baseline.

That gives the remaining two months a specific job. For the COLA to reach TSCL's 3.8%, August and September have to average 330.429. From July's 327.104 that is a climb of about 0.68% per month. Last summer those same two months rose 0.30% and 0.26%. Repeating last summer's pattern produces 3.4%, not 3.8%.

What drove the spring run-up, per the 12-month CPI-W detail through May: fuel oil up 64.1%, gasoline up 40.7%, and airfare up 25%. May marked the fastest 12-month CPI-W pace since April 2023. That energy spike has now stopped compounding. June fell half a point and July did not move at all, which is two months of evidence rather than one.

None of this is settled. A hurricane, an oil shock, or a hot back-to-school season could still lift August and September. But the burden has shifted: a 3.7% or 3.8% COLA now requires something to happen, while 3.1% requires nothing at all.

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 their January payment

For 2027, the baseline is the Q3 2025 average CPI-W of 317.265. The Q3 2026 average (not yet known) will be compared against it.

The Iran Oil Shock: Why Gas Prices Are Spiking

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

The Strait of Hormuz normally carries more than 20% of the world's daily oil supply. Since early March 2026, it has been effectively closed. On April 21, 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 have pulled back.

A fragile two-week ceasefire between the U.S. and Iran is set to expire around April 22-23. If fighting resumes and the strait stays closed, analysts warn oil could test $150 or even $200 per barrel in futures markets. That would push gas well above $5/gallon and send the CPI-W surging.

If a lasting deal reopens the strait, analysts say it could still take months for oil shipments to normalize. Either way, the March CPI-W spike of 10.9% in energy prices is 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 early 2026 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, the administration moved quickly to impose them under alternative legal authority. The net effect on consumer prices has been real: goods-sector inflation remains "sticky," meaning prices went up and haven'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 in January 2027, but it also means you're paying more for goods right now.

What a 3.1% to 3.4% COLA Means in Dollars

Here's what each scenario would add to monthly retirement checks, starting with the January 2027 payment. The 3.1% column is what happens if August and September go nowhere. The 3.4% column is a repeat of last summer.

The difference between the two columns is smaller than the difference between either one and what was being forecast a month ago. An E-7 loses about $240 a year moving from a 3.8% COLA to 3.1%, and that money never comes back: COLA compounds, so every future year is calculated from the lower base.

VA disability compensation gets the same COLA. A veteran at 100% with no dependents currently receiving $3,938.58/month would see an increase of about $122 to $134 per month.

SBP annuities also get the full COLA. REDUX retirees would receive 2.1% to 2.4% (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: Six Years of Above-Average Raises

If the 2027 COLA comes in at 2.8% or higher, it would mark the sixth straight year that military retirees received at least a 2.5% increase. That hasn't happened since the 1988-1997 stretch.

The cumulative effect is significant. A retiree who started drawing pay in January 2022 has seen their check grow by roughly 25% in nominal terms over five years. That's the COLA doing its job: protecting purchasing power during a period 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 3.2% COLA sounds good until you look at what's driving it. Gas at $4.09 a gallon. Grocery prices creeping up as transportation costs get passed through. Medicare Part B premiums that jumped 9.7% for 2026 (from $185 to $202.90), far outpacing the 2.8% COLA that was supposed to cover it.

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. The G Fund currently earns 4.375%, which barely beats a 3.2% COLA.
• 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 to Watch

I'll update this post as new CPI-W data comes in each month. Bookmark it or check back after each BLS release.

FAQ

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. The only exception is REDUX retirees, who get COLA minus 1%.

Could the COLA be lower than 3.1%?

Yes, but it would take actual price declines. July is locked at 327.104, which is 3.1% above the baseline on its own. Because July is one third of the average, August and September would both have to fall below July's level to drag the result under 3.1%. Flat prices produce 3.1%, so that figure now functions as a soft floor rather than a forecast.

Could it go back above 4%?

It is now unlikely. With July fixed at 327.104, a 4% COLA needs August and September to average about 331.86, a climb of roughly 1.45% per month. Nothing in the last two readings points that way: June fell 0.5% and July did not move. It would take an energy shock sharper than the spring one, compressed into the two months that are left. Fuel oil was up 64.1% and gasoline 40.7% over the 12 months through May, so the base is high enough that a re-spike would register fast, but it would have to start immediately.

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

Not directly. Active duty pay raises are set by Congress through the NDAA, not by COLA. The 2026 active duty raise was 3.8%. The 2027 raise will be determined separately. However, if you're planning to retire in 2027, the COLA will affect your retirement pay starting from your retirement date, and the quarter you retire in matters. See our COLA trap guide.

When will the next update be?

The July 2026 CPI-W lands August 12, 2026 at 8:30 a.m. Eastern. It is the first of the three readings that actually set the COLA, so it matters more than anything released so far. After that: August data on September 11, September data in mid-October, and the official announcement once September's number is in.

Related Articles

• The Military COLA Trap 2026: How Your Retirement Date Can Cost You Thousands
• 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. COLA forecasts are estimates and will change as new CPI-W data is released. The official 2027 COLA will be announced by the Social Security Administration in October 2026.