MIE Per Diem Explained — What You Keep and What Gets Deducted

If you’ve searched “MIE per diem explained military” and landed here, you’re probably staring at your TDY orders trying to figure out why your daily rate doesn’t match what you thought you’d get. I’ve been there. My first TDY out of Fort Campbell, I showed up to a three-day conference in San Antonio assuming I’d pocket the full per diem every single day. I didn’t. The finance office later walked me through what I’d missed, and honestly it was a little embarrassing — not because the rules are complicated, but because nobody had ever spelled them out plainly before I left. This article is what I wish someone had handed me before that trip.

MIE stands for Meals and Incidental Expenses. It’s the portion of your per diem that covers food and certain small costs that come with being away from home on official travel. The other chunk of per diem — lodging — is separate. MIE is governed by the Joint Travel Regulations (JTR), and the rates themselves come from GSA for CONUS travel. What GSA doesn’t explain is what actually happens to that money when the government feeds you, when you’re in transit, or when the dining facility on post is considered “available” to you. That’s where things get military-specific, and that’s what we’re going to break down.

What MIE Actually Covers

MIE is two things bundled into one daily rate: meals and incidentals. People tend to forget the incidentals piece, which causes confusion when they try to claim tips later.

The meals portion covers breakfast, lunch, and dinner — not necessarily what you actually eat, but three standard daily meals as a baseline for calculating what you’re owed. The incidentals portion covers tips given to hotel staff — think the housekeeper, the bellhop who hauls your bags, the valet. That’s it. Incidentals under MIE are narrow.

The standard CONUS MIE rate in FY2026 is $68 per day. That’s the baseline. Some locations with higher cost of living get a higher rate — cities like New York, San Francisco, and Washington D.C. operate at elevated tiers. But $68 is the number you’ll see for most domestic TDY destinations, and it’s the number I’ll use throughout this article to keep the math clean.

Here’s the thing that surprises most first-timers: MIE is not a flat “do whatever you want with it” allowance. It’s a structured rate. Each meal has a specific dollar value assigned to it, and when a meal is provided to you by someone else — a conference organizer, a government dining facility, a unit function — that meal’s value gets deducted from your daily MIE. You don’t get to double-dip. The government isn’t going to pay for a lunch you didn’t buy.

The Meal Breakdown by Tier

Probably should have opened with this section, honestly. Understanding the breakdown is the foundation for everything else.

GSA divides MIE into four line items. For the standard $68 CONUS tier, the breakdown looks like this:

• Breakfast — $13
• Lunch — $15
• Dinner — $31
• Incidentals — $9

Add those up: $13 + $15 + $31 + $9 = $68. That tracks.

Notice that dinner is almost double everything else. That’s intentional — GSA’s methodology assumes dinner is your most expensive meal on the road, and the allocation reflects that. Breakfast gets the smallest slice. If you’re the kind of traveler who skips breakfast and eats a big lunch, the math doesn’t care. The deduction is based on the assigned value, not what you actually spent.

For higher-cost locations, all the line items scale up proportionally. A city like New York at a higher MIE tier will have larger values for each meal slot, but the structure — breakfast, lunch, dinner, incidentals — stays the same. The percentages remain roughly consistent across tiers.

Why does this matter? Because the moment someone else provides one of those meals, that specific dollar amount comes off your daily MIE. Knowing these numbers lets you calculate your actual take-home before you swipe your card at a restaurant.

What Happens When Meals Are Provided

This is the section that catches people off guard. Especially at conferences.

The Conference Scenario

You’re attending a four-day professional military education conference. The conference registration covers a catered lunch each day. That lunch is considered “furnished” — meaning the government, or a government-sponsored event, has provided that meal. Your lunch deduction of $15 per day gets pulled from your MIE automatically. You don’t get $15 back on top of a free lunch. You get the lunch, and you lose the $15 from your daily rate.

On a standard $68 day, losing lunch means you’re working with $53 for the rest of the day. Across four conference days, that’s $60 less than you might have expected. Not devastating, but real money.

Same logic applies if breakfast is provided at your hotel as part of the room package, or if your unit runs a farewell dinner during TDY. Meals furnished are meals deducted.

Government Meal Rate — GMR

Here’s where it gets specifically military. If a government dining facility — a DFAC, a galley, a chow hall — is available to you at your TDY location, different rules kick in. You may be subject to the Government Meal Rate (GMR) rather than the standard MIE allocation.

The GMR is a fixed, low daily rate — typically around $14.85 for all three meals combined, though this gets updated periodically and your orders or local finance office will have the current number. It exists because the government is essentially saying: we have subsidized food available to you, so we’re only going to reimburse at the rate it costs to eat there.

GMR applies when a DFAC is available and your commanding officer hasn’t authorized a higher rate. It does not apply just because a DFAC exists somewhere on post — “available” has a specific meaning under the JTR, and distance and operational factors play into it. If you’re TDY to a large installation and there’s a DFAC within reasonable access, assume GMR is in play until you confirm otherwise with your orders or finance.

Proportional Meal Rate — PMR

The Proportional Meal Rate (PMR) is a middle-ground calculation used when some meals are provided but not all. Instead of losing a flat dollar deduction per meal, PMR applies a formula that accounts for which meals were furnished and adjusts your daily MIE accordingly.

The PMR formula: you take the total MIE rate, subtract the incidentals portion ($9 in our $68 example), then apply a percentage based on which meals were provided. It sounds complicated, and the first time you see it on a travel voucher it looks like someone did your taxes wrong. It’s not wrong. Your finance office will run the numbers, but knowing PMR exists — and that it’s distinct from a straight per-meal deduction — helps you not dispute a voucher that’s actually correct.

Bottom line on this section: know what meals are being provided before your TDY starts. Check your conference agenda. Ask your sponsor at the gaining unit whether a DFAC will be available. Surprises here cost you money.

First and Last Day Rule

On travel days — meaning the day you depart your home station and the day you return — you receive 75% of the applicable MIE rate, not 100%.

On a $68 MIE day, 75% is $51. That’s the most you’ll see on day one and the final day of any TDY, regardless of what time you leave or arrive. There is no sliding scale based on departure time. Early flight at 0500? Still 75%. Late flight at 2200? Still 75%. The rule is fixed.

Surprised by this? Most people are. I missed it entirely my first trip and built my budget around full-rate days. The math didn’t work out the way I expected when I filed my voucher.

Here’s the practical impact: on a five-day TDY, you have two travel days at 75% ($51 each) and three full days at 100% ($68 each). Total MIE: $102 + $204 = $306. Not $340. A $34 difference. Plan accordingly, especially if you’re on a tight per diem budget or TDYing to an expensive city where you’ll need most of that MIE to cover actual food.

The 75% rule applies to lodging differently — that’s a whole separate topic — but for MIE, it’s straightforward: first day, last day, 75%. Every day in between, 100%.

Incidentals — What Counts and What Does Not

The $9 incidentals piece of your MIE is the most misunderstood line item in the whole per diem structure. People assume it’s a general “misc expenses” bucket. It is not.

Under the JTR, incidentals specifically cover tips to hotel staff who provide services. That means:

• Tip to the bellhop who carries your bags — covered
• Tip to housekeeping left on the nightstand — covered
• Tip to the hotel doorman who hailed your cab — covered

That’s the list. Short, right?

Here’s what incidentals do not cover:

• Laundry or dry cleaning
• Personal phone calls
• Internet access fees (these may be separately reimbursable depending on your orders)
• Tips at restaurants (that comes out of your meal allowance)
• Minibar charges, room service upgrades, or anything recreational

Laundry is probably the one that trips people up most. On longer TDYs — two weeks or more — laundry becomes a real expense. The good news is that extended TDY authorizes laundry reimbursement as a separate line item, not out of your incidentals. Check your orders and confirm with finance if your TDY runs long enough to qualify. But don’t assume the $9/day incidentals allowance is going to cover your dry cleaning bill. It won’t, and submitting it that way on your voucher is a problem you don’t want.

Stumped by this years ago on a two-week TDY to Fort Huachuca, I submitted laundry under incidentals on my first voucher. Finance kicked it back. When I resubmitted with laundry as a separate authorized expense — which my orders did cover for TDYs over 14 days — it went through fine. Read the orders. Ask finance before you travel if anything’s unclear.

Putting It Together Before Your Next TDY

MIE per diem for military travel isn’t complicated once you understand the structure. The $68 standard CONUS rate breaks into four buckets. Travel days pay at 75%. Meals furnished by someone else — a conference, a DFAC, a unit event — come off the top. Government Meal Rate applies when government dining is available. Proportional Meal Rate handles partial-meal situations. Incidentals cover hotel staff tips and nothing else.

Before you leave on orders, do three things. First, check the MIE tier for your TDY location on the GSA website — don’t assume $68. Second, read your conference or training schedule for any provided meals and subtract those from your daily estimate. Third, confirm with your unit’s budget office or S4 whether GMR applies at your gaining installation.

The traveler who does those three things doesn’t get surprised by their voucher. That’s the goal. Know the rules before you go, budget accordingly, and file clean. Your finance office will appreciate it, and so will your checking account.