A Costco membership costs around $65 per year, and most families who use it strategically save far more than that on the first shopping trip. But Costco is also easy to overspend at if you don’t go in with a plan, the warehouse format and bulk sizing can lead to buying more than you’ll actually use, or falling for deals on things you didn’t need. This guide covers how to get maximum value from a Costco membership: what to always buy there, what to skip, and how to use every benefit of the membership most people don’t know about. This guide covers everything you need to know about how to save money costco, with practical steps that work for real families.
Why It Pays to Save Money Costco: How to Get Started
Is a Costco Membership Worth It?
The math is straightforward: a Gold Star Costco membership costs $65 per year, and the Executive membership costs $130 per year but pays 2% cash back on purchases (capped at $1,000 per year). If your family spends $6,500 per year at Costco, the Executive membership effectively pays for itself. Families who spend less than that are better served by the Gold Star membership.
Understanding how to save money costco is something that pays dividends for the entire family over time. Families who commit to learning how to save money costco consistently report better outcomes than those who take a more casual approach. The process of how to save money costco becomes easier with practice; each small step builds on the last.
For most families who use Costco primarily for groceries, gas, and household goods, the membership pays for itself quickly. Costco’s gas prices are typically 10–25 cents per gallon below local competitors. A family that fills up weekly on 15 gallons saves roughly $78–$195 per year in gas alone, already close to or exceeding the Gold Star membership cost.
What to Always Buy at Costco
Gas
Costco gas is consistently among the cheapest in any market where they operate. The savings per fill-up are meaningful, and there’s no minimum purchase required. Many members say they recoup the entire membership cost in gas savings within the first few months.
Kirkland Signature Products
Costco’s Kirkland Signature brand is one of the great value propositions in retail. Kirkland products are often manufactured by the same companies that make name-brand products, the Kirkland Signature extra-virgin olive oil is widely believed to come from some of the same Italian producers as premium brands. Kirkland coffee is roasted by Starbucks. Kirkland nuts, butter, olive oil, cooking spray, coffee pods, laundry detergent, and hundreds of other items consistently win comparisons against name-brand alternatives at significantly lower prices.
Household Staples in Bulk
Items with long shelf lives that your family uses consistently are ideal for Costco bulk buying: paper towels, toilet paper, trash bags, laundry detergent, dish soap, hand soap, and similar consumables. These categories can be 30–50% cheaper per unit at Costco than at a regular grocery store. Buy the bulk sizes and don’t think about replenishing for months.
Meat and Protein
Costco’s meat department consistently offers high-quality product at competitive per-pound prices, often significantly below grocery store rates. Chicken breasts, ground beef, salmon, rotisserie chicken ($4.99 for a large bird, one of the most famous deals in retail), and organic meats are all good buys. The large packages can be portioned and frozen immediately, buy once, use for weeks.
Produce for Families That Go Through It Fast
Large families and families that eat significant amounts of fresh produce can save at Costco on items like organic berries, avocados, baby carrots, romaine hearts, and bagged salads. The key qualifier is “go through it fast”, Costco’s produce quantities are large, and anything that goes bad before you can use it is money wasted.
Vitamins and Supplements
Kirkland vitamins and supplements are among the best-priced quality supplements anywhere. The Kirkland fish oil, vitamin D, prenatal vitamins, melatonin, and multivitamins all represent exceptional value and are USP-verified for quality. Compare unit prices against CVS or Target and the savings are often 50–70%.
Tires
Costco’s tire center offers competitive prices on tires and includes free installation, lifetime rotation, balancing, and flat repair, services that typically add $150–$200 at other tire shops. For families due for new tires, the Costco total package is often the best value available, even factoring in the cost of membership.
Optometry and Eyeglasses
Costco’s optical department offers eye exams and eyeglasses at prices well below typical retail optometry. Brand-name frames with lenses at Costco routinely cost 50–60% less than at a dedicated eye care retailer. You don’t need a membership for an eye exam at Costco (in many states), but you do need one to purchase glasses.
Travel and Services
Costco Travel is a frequently overlooked benefit. Costco negotiates package pricing on vacations, rental cars, hotels, and cruises that can represent meaningful savings over booking separately. Costco rental car rates are consistently competitive. Members also have access to Costco Auto Program for vehicle purchases, which offers pre-negotiated pricing that eliminates the stress and cost of dealer negotiations.
What NOT to Buy at Costco
Produce Your Family Won’t Use Fast Enough
A 5-pound bag of spinach is a great deal if your family eats salad every day. It’s an expensive waste if half of it wilts before you can use it. Buy fresh produce at Costco only for items your family genuinely goes through in volume.
Brand-New Electronics
Costco has excellent return policies and Costco-exclusive warranty extensions on electronics, which are real benefits. But Costco’s electronics prices aren’t always the lowest, major sales at Best Buy, Amazon, and other retailers during holiday events can beat Costco pricing. Check competing prices before buying electronics at Costco.
Condiments and Spices You Use Slowly
Buying a gallon of mayonnaise or a 2-pound jar of a spice you use twice a year creates waste and doesn’t actually save money if the product expires or goes stale. Bulk sizing only saves money if the bulk quantity gets fully used before expiration.
Specialty Foods You’ve Never Tried
Costco’s bulk packaging means commitment. Buying a large quantity of something you’ve never tasted is a gamble. Sample the product (Costco is famous for free samples on weekends) or buy a small quantity elsewhere before committing to the Costco size.
Costco Benefits Most Members Don’t Use
The Costco Visa (Citi Costco Anywhere card) earns 4% on gas (up to $7,000 per year), 3% on restaurants and travel, 2% on all Costco purchases, and 1% everywhere else, with no annual fee (beyond the membership). This makes it one of the best gas rewards cards available to anyone who has a Costco membership.
Costco’s pharmacy frequently offers significantly lower prices on generic medications than traditional pharmacies, and you don’t need a prescription plan to use it. The Costco pharmacy price on many generics beats GoodRx prices at other pharmacies, worth checking before filling a prescription elsewhere.
Related Guides
- How to Save Money at Walmart: The Complete Savings Guide
- The Complete Amazon Shopping Guide for Families: Prime, Subscribe & Save, and Deals
- How to Save Money on Groceries: The Complete Guide for Families For more budgeting resources, the Consumer Financial Protection Bureau budgeting tools is an excellent free resource families can rely on. >
Frequently Asked Questions About Saving at Costco
Can you shop at Costco without a membership?
In most locations, no. However, members can bring guests, and Costco gift cards can be used by non-members for purchases. Costco.com requires a membership for most purchases. If you’re unsure whether a membership is worth it, consider going as a guest with a member first to evaluate the products and pricing.
What’s the difference between Gold Star and Executive membership?
Gold Star ($65/year) gives full membership access. Executive ($130/year) adds a 2% annual reward on qualifying purchases, capped at $1,000. If you spend $3,250+ per year at Costco, the $65 extra for Executive pays for itself in rewards cash. The Executive reward is issued as a Costco cash certificate usable on your next visit.
Is Costco cheaper than Walmart or Amazon for bulk goods?
It depends on the item. For most household staples and consumables, Costco’s Kirkland line beats Walmart and Amazon on price per unit. For brand-name items, it varies, Amazon Subscribe & Save with coupons sometimes beats Costco. The most effective approach is to price-check on the items you buy most frequently rather than assuming any one retailer wins across the board.
When are the best times to shop at Costco?
Weekday mornings are the least crowded. Weekends during sample hours are the most crowded (and most fun if you’re feeding the family while you shop). Costco doesn’t have traditional sales, their prices are already the everyday low price, but they do release monthly coupon books with significant discounts on specific items. Check the coupon book before each major shopping trip.
