What Is Seller Fulfilled Prime? Requirements, the Trial, and SFP vs FBA

You want the Prime badge...but you don't want the Amazon warehouse.

You're not alone.

Plenty of third-party sellers are tired of FBA headaches: the storage fees, the shifting rules, the capacity limits, and the lack of control. Seller Fulfilled Prime (SFP) is Amazon's answer for them. So... is it worth it?

That's what we'll break down: what SFP is, what Amazon's current requirements say (we checked every number against Amazon's own pages in September 2026), how the trial works, how it compares with FBA, and how to run it with your own warehouse or a 3PL.

Let's get after it.

What Is Seller Fulfilled Prime?

Seller Fulfilled Prime is an Amazon program that lets you show the Prime badge on products you store, pack, and ship yourself, instead of sending them to Amazon's fulfillment centers. In Amazon's words, it "lets you put Prime branding on the listings for products you fulfill without Amazon," once you prove you can deliver at Prime speed (Amazon).

That's Amazon SFP in one line. You do the heavy lifting, and you still sell to Amazon's most loyal customers: Prime members.

You get the Prime badge without handing your inventory to FBA.

But here's the kicker: Amazon doesn't just hand over that badge. You have to earn it in a trial, and then you have to keep it, week after week.

Why Sellers Look at SFP

Let's be real. FBA works, but it is not cheap or simple. Amazon's own FBA page lists fulfillment fees, monthly storage fees, aged inventory surcharges for units stored more than 181 days, returns processing fees, and an inbound placement service fee (Amazon FBA costs). You might have noticed:

• You can't always send in as much inventory as you want
• Slow movers keep paying monthly storage and, past 181 days, aged inventory surcharges
• Every rule change lands on your margin

SFP gives you another option.

With SFP, you control the warehouse, the packaging, and the shipping carrier. Amazon lets you choose which products to enroll, where you store them, which Amazon-integrated carriers you use, and how you pack (Amazon).

And the badge matters. Amazon says Prime branding "helps increase your likelihood of becoming the Featured Offer," which is the Buy Box by its current name (Amazon).

But this isn't the Wild West. There are rules… and they're strict.

SFP Requirements

Amazon splits the requirements into three gates: what you need to start the trial, what you need to pass it, and what you need to stay enrolled. Here are the numbers as Amazon publishes them in its trial and enrollment page and its performance requirements page.

You also need a Professional selling account in good standing and a domestic US default shipping address. The Professional plan costs $39.99 a month plus selling fees (Amazon).

Delivery speed by size tier

Delivery speed is the share of Prime shoppers' product page views where your offer showed a delivery promise within the window. Amazon has three size tiers, and since November 5, 2025 each tier is evaluated on its own, so a miss on oversize items no longer costs you your standard-size Prime offers (Amazon).

Amazon refreshes these minimums quarterly, gives 45 days' notice of any increase, and may adjust them during the holidays. It is also excluding weekends from the speed metric from May 31 to October 17, 2026, while it launches delivery dates by zip code. You still have to operate on weekends.

The speed metric is where most sellers struggle. A two-day promise depends on where your inventory sits relative to your buyers, which is a shipping zones problem before it is a warehouse problem. Amazon also notes that Standard Shipping (one handling day plus 2 to 4 transit days) always counts in the denominator but never in the one-day or two-day numerator, so wide standard-only coverage drags your score down (Amazon).

Operating rules you sign up for

From Amazon's SFP program policy:

• Zero-day handling: orders promised same-day, one-day, or two-day delivery that arrive before your cut-off must ship the same day
• Cut-off times: 2:00 p.m. or later local time Monday to Friday, and 10:30 a.m. or later on Saturday and Sunday
• Weekends: you must receive, pack, and ship Prime orders on Saturday, Sunday, or both, and use carrier services that deliver on weekends
• Nationwide coverage: free Standard Shipping to the contiguous US for Prime and non-Prime buyers, and free one-day and two-day delivery to Prime buyers in the regions you set up for it
• Daily order limit: you set a Prime order limit per shipping day that reflects what you can reliably ship
• Returns: Prime returns inside the return window are approved automatically, you pay the return label for items under 50 lb, and you refund within two business days of the item reaching your warehouse
• One offer per ASIN: you cannot list the same item as both an SFP offer and a non-Prime seller-fulfilled offer

SFP isn't a shortcut. It's a performance badge. If you can't deliver like Amazon, you're out.

How to Qualify for SFP

Here's the path, step by step, from Amazon's trial and enrollment page:

1. Hit the pre-qualification numbers above on your seller-fulfilled orders over the past 90 days
2. Register for the SFP trial in Seller Central and set up your Prime shipping template for the size tiers you want
3. Run the trial: it starts the Sunday after you register and lasts 4 weeks (28 days)
4. Ship 100+ Prime trial packages, ship them every week, and meet every performance requirement
5. Graduate: your eligible offers get the Prime badge for each size tier you passed

Miss any requirement in two of the four weeks and you fail the trial. You get three attempts per calendar year, and you can restart any time you still pre-qualify. (Amazon's marketing page still says "30-day trial"; the Seller Central help page says 4 weeks, and that is the one your account is measured against.)

Watch the calendar, too. Amazon restricts trial graduation before big sales events. For 2026, the last trial start date ahead of peak season was September 19, and graduation is restricted from October 18 to December 31, 2026. If you pass inside that window, the badge switches on after it ends.

[TEMPLATE]: 3PL Evaluation Questions →

How SFP Works Day to Day

You fulfill Prime orders from your own warehouse (or your 3PL's warehouse). Amazon still expects Prime-level service, and it measures you every week, Sunday through Saturday (Amazon).

Here's what the job looks like once you're enrolled:

• Orders come in with a promise attached. Your shipping template, cut-off time, weekend operations, and carrier schedules decide what delivery date the shopper sees. Ship before the cut-off, same day, every day you operate.
• Labels need tracking Amazon can read. A tracking ID only counts as valid if it gets a first scan from an Amazon-integrated carrier.
• Buy Shipping is not mandatory, but it protects you. Buy Shipping usage is a supporting metric with no minimum. Amazon gives SFP offers on-time delivery protection when Shipping Settings Automation is on and you buy labels marked "OTDR Protected" through Amazon Buy Shipping or Veeqo, then ship on time.
• Amazon owns the customer after the order. All post-order contacts about Prime items go to Amazon Customer Service, which decides returns, refunds, and concessions and can charge their cost to your account. You still answer pre-order questions.

Two operational questions come up with almost every SFP seller.

How do I pick a service that meets the promise without overpaying? Rate shopping has to be zone-aware: the cheapest service that still lands inside the promised date, per order. If you already ship out of ShipStation and your rules have outgrown its built-in automation, String builds and maintains custom rate selection and warehouse routing logic inside your existing ShipStation account. Whatever tool picks the service, confirm the labels still meet Amazon's valid tracking rule, and that you understand when you lose OTDR protection by buying outside Buy Shipping or Veeqo.

How do I run SFP alongside my other channels? If the same inventory also sells on Shopify, Walmart, or wholesale, a late sync means you sell units you no longer have, and every seller cancellation counts against a 0.5% ceiling. An order operations platform such as Pipe17 brings orders from your channels into one place, keeps inventory visible across them, and routes each order to the fulfillment location best placed to ship it. See our primer on multi-channel distribution for the wider picture.

And yes, Amazon checks every week. The first miss on a requirement gets an email. The second disables your Prime offers. The third revokes your enrollment, and you start over from the trial. Meet a requirement for four straight weeks after a miss and that strike resets, and you have two weeks from a notice to appeal (Amazon).

SFP vs FBA

Seller Fulfilled Prime (SFP) vs Fulfillment by Amazon (FBA) is the comparison every Prime seller runs. Both put the Prime badge on your listings. They differ in who holds the inventory, who pays for what, and who carries the risk.

Sources: SFP program policy, Amazon FBA. On prep: Amazon stopped offering FBA prep and item labeling services in the US on January 1, 2026 (Supply Chain Dive). We covered what that changes in our FBA prep shutdown guide.

FBA has its moments. No question. Especially if:

• You're scaling fast and don't have warehouse coverage yet
• You want hands-off logistics
• You want Amazon to handle customer service and returns end to end

But here's what Prime sellers like about SFP:

• Greater control: You decide how, where, and when products ship
• No FBA storage fees: You pay your own warehouse or 3PL instead of Amazon's storage and aged inventory fees
• Flexibility: Keep selling when FBA capacity limits hit
• One inventory pool: The same units can serve Amazon, your site, and other marketplaces

Some sellers run a hybrid model: FBA for some SKUs, SFP for others. One rule to plan around: Amazon does not allow an SFP offer and a non-Prime seller-fulfilled offer on the same ASIN.

Who Should Consider SFP?

The truth is not every seller is built for Seller Fulfilled Prime.

But you should seriously consider it if:

• You already ship well over 100 seller-fulfilled packages a month with clean cancellation and tracking numbers
• Your products are mostly standard-size and ship easily
• Your inventory sits close enough to your buyers to hit one-day and two-day promises, or you have a 3PL network that does
• You want to avoid Amazon's storage and FBA fees
• You're tired of playing inventory limit roulette

You should probably not bother if:

• You can't meet Amazon's shipping requirements, including weekend operations
• You sell oversized items with unpredictable demand
• You ship from one warehouse far from most of your buyers

But there's a middle ground: have a 3PL run SFP for you.

Outsourcing SFP

Amazon lets you choose your storage facilities, so a 3PL can run SFP for you. But Amazon is blunt about who carries the risk: qualification depends only on actual delivery performance during the trial, and Amazon "is not responsible for commitments a third-party logistics provider or other partner makes to its clients regarding SFP qualification" (Amazon).

Most 3PLs say they can handle SFP. The ones that can will answer these questions without hedging:

• Do you receive, pack, and ship on Saturday or Sunday?
• What is your order cut-off, and does it meet Amazon's 2:00 p.m. weekday and 10:30 a.m. weekend minimums?
• Which Amazon-integrated carriers do you ship with, and do you buy labels through Buy Shipping or Veeqo?
• From which warehouses can you reach my buyers in one or two days?
• Can you show SFP on-time delivery and valid tracking reports for current clients?
• What happens to my orders on a day you're over capacity?

We've seen what happens when those answers are wrong:

• Warehouses that miss cutoff times by 30 minutes and blow up your metrics
• Labels bought outside Amazon-integrated carriers that break valid tracking
• Providers that ghost during holiday rushes

That's where Fulfill.com comes in. We have matched 10,000+ brands with 3PLs, and our network lists 2,600+ 3PLs. You tell us your volume, SKUs, and channels, and we introduce you to Seller Fulfilled Prime 3PLs that fit. Think of us like your logistics matchmaker: you bring your fulfillment wishlist, we bring you matches to interview with the questions above. If you plan to keep FBA for part of the catalog, see 3PLs for Amazon fulfillment as well.

Before you sign, price it out. SFP moves shipping and returns cost onto your side of the ledger, so compare quotes on the same terms. Our 3PL pricing guide breaks down what goes into a quote.

So yes, 3PLs can handle SFP requirements. But you have to choose carefully, or you could find yourself missing delivery targets, losing Prime status, and scrambling to fix customer complaints very quickly.

[TOOL]: 3PL Cost Calculator →

Four Warehouses to Shortlist

Not all warehouses are built to meet Amazon's Seller Fulfilled Prime standards. These four 3PLs from our network are worth a call if you want the Prime badge without FBA. Put each one through the questions above. For the full list, see our Seller Fulfilled Prime directory.

Smart Warehousing

Smart Warehousing combines automation, real-time inventory visibility, and optimized fulfillment workflows, all of which matter for meeting Amazon's SFP speed and accuracy requirements.

Why it's a fit for SFP:

• Automation that supports zero-day handling and fast pick/pack/ship
• Real-time inventory tracking for accuracy and compliance
• Scales with seasonal demand and order volume growth

Smart Warehousing brings broad coverage, regional reliability, and tech-driven, scalable execution, which helps with earning and keeping your Seller Fulfilled Prime badge without relying on Amazon's warehouses.

Go Direct Global

Go Direct Global stands out for moving high volumes of lightweight, fast-moving products efficiently while keeping to the shipping timelines Seller Fulfilled Prime requires.

Why it's a fit for SFP:

• High-throughput order processing for fast fulfillment
• Carrier optimization to maintain Prime delivery speeds
• Cost-efficient shipping for high-volume Amazon sellers

Go Direct Global's speed-focused operations and shipping discipline help sellers hold their on-time delivery and valid tracking rates, two of the metrics Amazon uses to decide SFP eligibility.

DaVinci Micro Fulfillment

DaVinci Micro Fulfillment earns its spot with automation-driven micro-fulfillment designed for speed, density, and accuracy in order processing.

Why it's a fit for SFP:

• Automated systems that reduce handling time
• High-density storage optimized for fast SKU access
• Consistent pick accuracy to protect Prime metrics

DaVinci's automation-first model cuts human error and processing delays, helping sellers meet Amazon's zero-day handling and delivery performance requirements.

ShipCalm

ShipCalm rounds out the list with a customer-focused approach to fulfillment and experience supporting both Amazon and multi-channel sellers.

Why it's a fit for SFP:

• Reliable order processing and shipping execution
• Tracking accuracy and carrier compliance
• Support for hybrid DTC and Amazon fulfillment models

ShipCalm's attention to detail and operational transparency help sellers hold Amazon's required tracking rates, protecting Prime status over the long term.

Seller Fulfilled Prime FAQ

What is Amazon SFP?

Amazon SFP is short for Seller Fulfilled Prime: the program that puts the Prime badge on offers you fulfill from your own warehouse or a 3PL instead of FBA. You earn it by passing a 4-week trial and keep it by meeting weekly performance metrics.

What are the Seller Fulfilled Prime requirements?

To stay enrolled: on-time delivery of 93.5% or higher, valid tracking of 99% or higher, cancellations at 0.5% or less, and the delivery speed minimums for each size tier (Amazon). The program policy adds zero-day handling for orders received before a cut-off of 2:00 p.m. or later on weekdays, weekend operations, and free Standard Shipping across the contiguous US (Amazon). Ship fewer than 100 Prime packages in a month and Amazon limits how many Prime orders you can take each day.

How much does Seller Fulfilled Prime cost?

You need a Professional selling plan at $39.99 a month plus selling fees (Amazon). The bigger cost is operational: free shipping to Prime buyers at one-day and two-day speeds, return labels for items under 50 lb, and weekend staffing, whether in your own building or through a 3PL.

How long is the SFP trial?

Four weeks (28 days), starting the Sunday after you register. You need 100+ Prime trial packages, shipped every week, with all performance requirements met. Two missed weeks on any requirement ends the trial.

Is Seller Fulfilled Prime better than FBA?

Neither wins everywhere. SFP suits sellers with fast-moving, standard-size products, strong multi-channel inventory, and a warehouse footprint that reaches buyers in one or two days. FBA suits sellers who want Amazon to run fulfillment, customer service, and returns and can live with its fees and capacity limits.

Can a 3PL do Seller Fulfilled Prime for me?

Yes. Amazon lets you choose the storage facility, and many sellers use a 3PL. You remain responsible for the results, so pick one that can show its SFP metrics. Our SFP 3PL directory is a place to start.

Next Steps

You don't need to overhaul your entire logistics setup overnight. You don't even need to fully commit to SFP right away.

Start by checking your last 90 days of seller-fulfilled orders against the pre-qualification numbers. If you clear them, look at where your buyers are and whether your warehouse, or a 3PL's network, can hit the one-day and two-day speed minimums. That tells you whether SFP is a trial away or a network change away.

If you're serious about reducing FBA fees, controlling your own fulfillment, and building a more resilient supply chain, SFP is worth a long, hard look. It can work. But only if your backend is rock solid.

Tell us what you need, and we'll send you a shortlist of 3PLs that fit.

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