Updated: September 2026

Amazon Fresh vs Walmart+ vs Instacart: US Grocery Delivery 2026

Three services dominate US grocery delivery in 2026, and the pick between them is not really about which is cheapest overall (they are all within USD 40 per year of each other on membership). It is about which retailer catalog you actually want, whether you already pay for Prime, and how tolerant you are of Instacart's layered fee structure.

The verdict

For US grocery delivery in 2026:

• Walmart+ at USD 98 per year is the cheapest for weekly baskets over USD 35 because delivery is free above USD 35 and Walmart's own price index runs at or below most regional grocers. Per Weeknight Win's 2026 cost analysis, Walmart+ is the flat-out cheapest for households that shop Walmart weekly.
• Amazon Fresh is the strongest fit for existing Prime households at USD 139 per year (Prime), included in the membership already. No additional subscription. Free delivery on orders over USD 35, up to USD 10 fee on orders under USD 35.
• Instacart is the widest selection with over 1,500 US retailer partners including Costco, Publix, Kroger, Wegmans, Sprouts, and ALDI. Instacart+ at USD 99 per year unlocks free delivery over USD 35.

Compare cashback on grocery-adjacent retailers on ShopBack. Sign up for ShopBack and earn cashback on household purchases.

Side by side on the numbers

Feature	Walmart+	Amazon Fresh (Prime)	Instacart+
Annual membership	USD 98	USD 139 (Prime)	USD 99
Monthly membership	USD 12.95	USD 14.99 (Prime)	USD 9.99
Delivery fee under USD 35 basket	USD 6 to USD 10	Up to USD 10	USD 3.99 to USD 7.99
Delivery fee over USD 35 basket	Free	Free	Free
Service fee	None	None	6 to 10 percent of basket
Retailer selection	Walmart only	Amazon Fresh plus Whole Foods (overlap zones)	1,500-plus retailers
Delivery speed	Same-day standard	Same-day (2-hour windows)	Priority under 60 min, standard 2-hour
Price markup vs in-store	None	None	Sometimes 10 to 15 percent on marketplace retailers
Retailer credit card stacking	Capital One Walmart Rewards Card (5 percent)	Amazon Prime Visa (5 percent on Amazon)	Chase Freedom category quarters
ShopBack partner eligibility	Yes on eligible categories	Not a ShopBack US partner	Occasional
Additional membership perks	Free Walmart.com shipping, gas discount, Paramount+ Essential	Prime Video, Prime Music, free 2-day shipping	5 percent credit back on pickup orders

Walmart+ deep dive

Walmart+ is Walmart's response to Amazon Prime, and for weekly grocery shoppers on Walmart it is the cheapest all-in.

Membership cost. USD 12.95 per month or USD 98 per year. 30-day free trial available. Half-price membership at USD 49 per year for eligible EBT and Medicaid recipients through Walmart+ Assist.

Grocery delivery. Free unlimited grocery delivery on orders over USD 35 across Walmart's delivery zones. Delivery windows are typically same-day with 3-hour scheduling flexibility. Substitution handling defaults to Walmart's algorithm; customers can approve or reject substitutions during picking.

Non-grocery benefits. Free shipping on Walmart.com with no order minimum. Member gas discount at Exxon, Mobil, and Walmart-partner stations. Paramount+ Essential subscription (retail USD 7.99 per month) included. Mobile scan-and-go in-store checkout at participating Walmart stores.

Weakness. Selection is limited to what Walmart stocks. If you shop primarily at Publix, Kroger, ALDI, or a regional grocer, Walmart+ does not help you.

Strength. For US households where Walmart is a weekly stop, USD 98 per year clears the value threshold quickly. On a household ordering weekly USD 120 to USD 200 baskets, the annual delivery-fee savings alone (USD 6 to USD 10 per order times 50 orders = USD 300 to USD 500) more than clears the membership fee.

Amazon Fresh deep dive

Amazon Fresh is bundled into Amazon Prime, so for the roughly 180-plus million US Prime households, Amazon Fresh access is already paid.

Membership cost. No additional subscription. Prime at USD 14.99 per month or USD 139 per year is the only requirement.

Delivery fees. Orders under USD 35 incur a delivery fee up to USD 10. Orders over USD 35 are free delivery for Prime members in most delivery zones. Priority delivery windows may add a small upcharge.

Selection. Amazon Fresh grocery selection plus Whole Foods Market where the delivery zone overlaps. Whole Foods Market delivery is available in most major US metro areas via Amazon Fresh. Alcohol, prescription, and some restricted categories may be limited by zone.

Delivery speed. Same-day delivery in Prime-Fresh zones with 2-hour delivery windows. Standard delivery available in 3-hour windows.

Weakness. Delivery-zone coverage is not universal in the US. Rural and small-town zones may not have Amazon Fresh available. Amazon Fresh is not a ShopBack US partner, so cashback via ShopBack does not apply.

Strength. For households already paying Prime, the incremental cost of adding grocery delivery is zero. The Prime Video, Prime Music, and free 2-day shipping benefits continue to be included.

Instacart deep dive

Instacart is the marketplace-model competitor, and for households that value retailer selection over per-order cost, it is the clear pick.

Membership cost. Instacart+ at USD 9.99 per month or USD 99 per year. 14-day free trial available.

Retailer selection. Over 1,500 US retailer partners including Costco, Publix, Kroger, Wegmans, Sprouts, ALDI, Fresh Market, and hundreds of regional grocers and specialty retailers (Total Wine, Petco, CVS, Sephora, and more).

Delivery fees. USD 3.99 to USD 7.99 per delivery order without Instacart+. Free on orders over USD 35 with Instacart+. Priority delivery may add USD 2 to USD 5 for under-60-minute service.

Service fee. Instacart charges a service fee separate from the tip, running approximately 6 to 10 percent of the basket per Weeknight Win's 2026 delivery-cost comparison. This is the fee most customers do not notice on the checkout summary.

In-store price markup. For marketplace retailers where Instacart shoppers physically pick from the store, Instacart may mark up prices 10 to 15 percent above in-store shelf price. For direct-integration retailers (Costco, Kroger via Kroger Delivery), pricing typically matches in-store.

Delivery speed. Priority delivery under 60 minutes in most metro markets. Standard delivery in 2-hour windows.

Weakness. Total order cost with service fee plus tip plus possible markup often runs 15 to 25 percent above in-store shelf price. Instacart+ mitigates delivery fee but not service fee or markup.

Strength. No other delivery service comes close on retailer selection breadth. If you want Costco delivery, ALDI delivery, or a regional grocer, Instacart is often the only path.

Which service fits which household

Household profile	Best fit	Why
Already pays Amazon Prime, shops occasionally	Amazon Fresh	Zero incremental cost, included with Prime
Weekly Walmart shopper, budget-focused	Walmart+	Cheapest all-in for weekly USD 35-plus baskets
Weekly Costco or Publix shopper	Instacart+	Only service delivering those retailers
Shops at multiple grocers weekly	Instacart+	Widest retailer selection
Small household (1-2 people) with sub-USD 35 baskets	Instacart pay-per-order	No membership commitment needed
Household with dietary restrictions requiring specialty stores	Instacart+	Access to Sprouts, Fresh Market, natural grocers
Rural or small-town household	Walmart+ (if Walmart delivers)	Widest US delivery coverage among the three
Household that wants delivery in under 60 minutes	Instacart Priority	Fastest option
Household wanting Amazon plus grocery in one order	Amazon Fresh	Only service that combines Amazon consumer goods and grocery
Household focused on lowest total-cost	Walmart+	No service fee, no markup, just membership and free delivery over USD 35

The BLS grocery-spend context

The US Bureau of Labor Statistics Consumer Expenditure Survey placed average annual household food-at-home spending near USD 6,050 in recent years, materially higher than pre-pandemic levels driven by grocery inflation. A four-person US household typically runs USD 7,500 to USD 12,000 per year on groceries.

At those spend levels, the USD 98 to USD 139 delivery-membership fee is 1 to 2 percent of annual grocery budget. Picking on total-cost fit rather than membership fee alone is the right call. A membership that saves you 3 hours per week of grocery-run time is worth more than the marginal dollar difference between USD 98 and USD 139.

Stacking cashback and rewards

For US households, three additional cashback and rewards layers stack independently.

Retailer credit cards. Capital One Walmart Rewards Card gives 5 percent back on Walmart.com purchases including grocery delivery. Amazon Prime Visa gives 5 percent back on Amazon including Amazon Fresh. Chase Freedom Flex and Discover It offer 5 percent rotating category quarters that occasionally include grocery.

ShopBack. Walmart is a ShopBack US merchant for eligible categories via the Walmart merchant page. Activate ShopBack via the browser extension before checkout at Walmart.com to stack cashback on top of any Walmart+ delivery. Amazon Fresh is not a ShopBack partner. Instacart occasionally appears; check the ShopBack merchant list.

Retailer loyalty programs. Walmart Rewards, Kroger Plus, Publix Club, and other retailer programs continue to accrue on delivery orders where applicable.

Use ShopBack to compare cashback rates at Walmart, Target Circle 360, Chewy, and other grocery-adjacent retailers before checkout on household purchases.

Ready to stack cashback? Shop Walmart via ShopBack on grocery-eligible orders and earn cashback.

When grocery delivery does NOT make sense

• You live within 5 minutes of your grocery store. The convenience delta is small; the delivery premium is not worth it.
• You buy primarily fresh produce and meat you need to inspect. Delivery substitution and picking quality on produce and meat varies by service.
• Your typical weekly basket is under USD 35. All three services charge delivery fees under USD 35, so the membership economics do not clear.
• You shop at farmers markets or CSA subscriptions. These channels are not on any of the three services.
• You want the cheapest possible per-unit grocery cost. ALDI in-store, Costco in-store, and Walmart in-store typically beat delivered per-unit cost.

Frequently asked questions

Which is cheapest: Amazon Fresh, Walmart+, or Instacart in 2026?

Walmart+ at USD 98 per year is the cheapest all-in for weekly grocery baskets above USD 35, per Weeknight Win's 2026 delivery-cost comparison. Walmart+ delivery is free on baskets over USD 35, while Instacart charges USD 3.99 to USD 7.99 per order without Instacart+ (USD 99 per year) and Amazon Fresh charges up to USD 10 on orders under USD 35.

Is Amazon Fresh included with a Prime membership?

Yes. Prime members at USD 14.99 per month or USD 139 per year get access to Amazon Fresh with no additional subscription fee. Amazon Fresh orders over USD 35 have no delivery charge for Prime members in most delivery zones. Orders under USD 35 incur a delivery fee up to USD 10.

How much is Walmart+ in 2026?

Walmart+ costs USD 12.95 per month or USD 98 per year. Benefits include free unlimited grocery delivery on orders over USD 35, free shipping on Walmart.com with no order minimum, member gas discounts at Exxon and Mobil stations, Paramount+ Essential subscription, and mobile app scan-and-go in-store checkout.

How does Instacart+ compare on membership fee?

Instacart+ costs USD 9.99 per month or USD 99 per year. Benefits include free delivery on orders over USD 35 across the Instacart marketplace, reduced service fees, and 5 percent credit back on eligible pickup orders. Instacart+ pays for itself at roughly 12 to 15 delivery orders per year at the USD 3.99 to 7.99 per-order fee.

Which service has the widest retailer selection?

Instacart wins on selection. Instacart delivers from over 1,500 US retailer partners including Costco, Publix, Kroger, Wegmans, Sprouts, ALDI, and hundreds of regional grocers and specialty stores. Walmart+ delivers Walmart inventory only. Amazon Fresh delivers Amazon Fresh inventory plus Whole Foods Market where zones overlap.

What are Instacart's hidden fees?

Instacart's service fee is separate from the tip and often overlooked, running approximately 6 to 10 percent of the basket per Weeknight Win's cost analysis. Add a delivery fee (USD 3.99 to 7.99 without Instacart+), possible priority-delivery upcharge, in-store markup on some retailer inventory, and a tip. A USD 100 basket on Instacart without Instacart+ often lands at USD 118 to 125 all-in including tip.

Does Amazon Fresh mark up prices vs in-store Whole Foods or Amazon Fresh in-store?

Amazon Fresh prices online typically match Whole Foods and Amazon Fresh in-store prices in the same delivery zone, with no delivery markup above the listed shelf price. Instacart typically adds a 10 to 15 percent markup on retailer prices where it acts as the marketplace vs when a partner is a direct-integration retailer. Walmart+ delivers Walmart's online-listed prices with no markup.

Can I use ShopBack when ordering groceries?

Yes on some, no on others. Walmart is a ShopBack US merchant for eligible categories via the Walmart merchant page. Instacart occasionally appears as a ShopBack merchant. Amazon and Amazon Fresh are not ShopBack US partners. For household and grocery-adjacent purchases, use ShopBack to compare cashback rates at Walmart, Target Circle 360, and Chewy before checkout.

Which service has the fastest delivery?

Instacart's Priority Delivery routes in under 60 minutes in most metro markets. Amazon Fresh delivers same-day in Prime-Fresh zones with 2-hour delivery windows. Walmart+ delivers same-day in most zones with next-day as the standard fallback. For emergency last-minute grocery needs, Instacart Priority is the fastest option, with the trade-off of higher fees.

Which service is best for a household of one or two people?

For small households where the weekly basket often sits below the USD 35 free-delivery threshold, none of the three membership programs may pay off. Instacart's per-order model without Instacart+ is the most flexible for occasional small orders. Amazon Fresh via existing Prime is the most efficient for Prime households. Walmart+ requires enough weekly baskets over USD 35 to clear the USD 98 annual fee.

Will ShopBack cashback stack with Walmart+ Rewards or Instacart+ credits?

Yes, when the merchant is a ShopBack partner and the category is eligible. ShopBack cashback is a separate layer from the retailer's own rewards program. Walmart Rewards points continue to accrue on ShopBack-tracked orders where eligible. Instacart+ credits back on pickup orders continue to accrue. Check current merchant terms on the ShopBack merchant page.

When is the best time to sign up for grocery delivery in 2026?

Walmart+ and Instacart+ both run promotional trials year-round. Walmart+ Week (typically late July or early August) is the annual peak promotional window with Walmart+ member-exclusive deals. Amazon Prime Day (typically July) is the peak Prime signup window with discounted first-year membership. Black Friday and Cyber Monday extend membership discounts across all three.

How much does the US household spend on groceries in 2026?

The US Bureau of Labor Statistics Consumer Expenditure Survey placed average annual household food-at-home spending near USD 6,050 in recent years, up meaningfully from pre-pandemic levels. A four-person household typically runs USD 7,500 to 12,000 per year on groceries. At those spend levels, the USD 98 to USD 139 delivery-membership fee is small relative to grocery budget, so pick on service fit rather than membership cost alone.

Primary sources referenced

• Walmart+ Benefits
• Amazon Fresh
• Instacart+ Membership
• US BLS Consumer Price Index Food at Home
• Healthline Best Grocery Delivery Services 2026

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About this section

Membership pricing, delivery fees, and retailer partnerships for Walmart+, Amazon Fresh, and Instacart are subject to change and vary by delivery zone. Verify current terms directly with each service before subscribing.

Written by Trang Do, Cashback Expert at ShopBack.

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Brands, work with us: trang@shopback.com.