AAFES stands for the Army and Air Force Exchange Service, a Department of Defense retail operation that runs stores, restaurants, gas stations, and other businesses on military installations worldwide. It operates more than 4,900 facilities and serves as the military’s version of a department store chain, offering tax-free shopping at competitive prices to service members, retirees, and their families.
How the Exchange Works
The Exchange is what’s known as a non-appropriated fund instrumentality. That means it doesn’t run on taxpayer dollars the way most government agencies do. Instead, it funds itself through retail sales, much like a private business. The profits it generates serve a specific purpose: they’re returned as dividends to support morale, welfare, and recreation (MWR) programs across the Army and Air Force. Those programs fund things like fitness centers, youth activities, and recreation facilities on military bases.
On Army posts, the main retail store is called the PX (Post Exchange). On Air Force bases, it’s the BX (Base Exchange). Both are run by the same organization, and the shopping experience is similar to a mid-size department store carrying clothing, electronics, home goods, beauty products, and more.
What the Exchange Sells and Where
Beyond the main PX and BX stores, the Exchange operates convenience stores, Military Clothing stores (where service members buy uniforms), restaurants, mall-style shops and kiosks, movie theaters, gas stations, car care centers, and wellness services. In total, the network spans more than 4,900 facilities on military installations around the world, from large stateside bases to overseas and contingency locations.
The Exchange also runs an online store at shopmyexchange.com, which extends access to a broader group of eligible shoppers, including veterans who may not have access to a physical installation.
Tax-Free Shopping and Price Matching
One of the biggest financial perks of shopping at the Exchange is that purchases are tax-free. There’s no state or local sales tax applied at the register, which can mean meaningful savings on big-ticket items like electronics, appliances, or furniture. On a $1,000 laptop, for example, skipping an 8% sales tax saves you $80.
The Exchange also runs a price-match policy. If you find an identical item at a lower price from a local competitor (defined as a brick-and-mortar retailer within 25 miles, including warehouse clubs like Costco and Sam’s Club), the Exchange will match it. For price differences of $10 or less per item, you can simply mention it verbally at the register. For differences above $10, you’ll need to show a current ad from the competitor. The online store at shopmyexchange.com will match prices from select authorized online retailers as well.
Once you’ve bought something, you’re also covered by a 14-day price guarantee. If the Exchange, a local competitor, or an authorized online retailer drops the price within two weeks of your purchase, you can get the difference back. The main exceptions are Black Friday through Cyber Week deals and one-day promotional events like Veterans Day sales.
Who Can Shop at the Exchange
Not everyone can walk into a PX or BX. Shopping privileges are tied to your military affiliation, and they break down into two main categories.
Full (Unlimited) Privileges
Active duty members of the Army, Air Force, and other military branches have full access, as do their dependents. Military retirees can shop freely, though their family members must be accompanied by the retiree and purchases are limited to those made by the retiree. U.S. civilian DoD employees stationed overseas, military transition personnel, and commissioned officers of the Public Health Service and NOAA also qualify for unlimited privileges.
Limited Privileges
Honorably discharged veterans can shop online at shopmyexchange.com, but this benefit does not grant access to physical stores on military installations. Veterans certified as 100% disabled by the VA do get in-store access, though with some restrictions. Limited privileges generally exclude tobacco products, alcoholic beverages, and military uniforms.
Other groups with limited access include National Guard members not in federal service, foreign military members on duty with U.S. forces, and Red Cross personnel assigned overseas. Even visitors to military installations can purchase food and beverages at Exchange locations, as long as the items are consumed on post.
The MILITARY STAR Card
The Exchange manages a store credit card called the MILITARY STAR card, which is accepted at Exchange stores, commissaries, and other military retail locations. One notable feature is a dedicated uniform line of credit that offers zero-percent financing for 12 months on qualifying military uniform purchases, up to a $1,000 limit. This can be a significant benefit for service members who need to buy dress uniforms or specialty items that can run several hundred dollars.
The card frequently offers zero-percent interest promotions on other purchases as well, making it a practical option for service members furnishing a new home after a PCS (permanent change of station) move or replacing essential items.
How AAFES Differs From the Commissary
People sometimes confuse the Exchange with the commissary, but they serve different roles. The commissary is the military’s grocery store, operated by the Defense Commissary Agency (DeCA), and it sells food and household consumables at cost plus a small surcharge. The Exchange sells general merchandise, clothing, electronics, and services, and it operates as a self-sustaining retail business. The Exchange will not price match commissary prices, since the two systems operate under different financial models.
Both exist to make military life more affordable, but you’ll visit the commissary for groceries and the Exchange for nearly everything else.