LEGO profit after fees is what actually lands in your pocket once marketplace commissions, payment processing, shipping, packaging, and returns get subtracted from your sale price, and for most resellers I talk to it's a lot lower than the number they had in their head when they listed the item. A set that "sold for $80" might really put $52 to $60 in your bank account once everything is accounted for, and if you're pricing off the sale price instead of the net number, you're flying blind.
I've made this mistake myself. Early on I'd see a sale notification and mentally bank the full amount, then get surprised months later when my actual margins looked thinner than my spreadsheet said they should. In my experience, the sellers who last in this business are the ones who price for profit after fees from the start, not the ones who chase the highest listing price and hope the math works out.
- Marketplace fees vary a lot: Facebook Marketplace charges nothing, BrickLink is generally cheaper, and eBay can climb toward 25% once you add promoted listings on top of standard fees.
- Shipping and packaging are real costs, not an afterthought, and they hit small, low-dollar items the hardest.
- Returns and refunds need to be built into your average margin, not treated as a rare surprise.
- The platform that gets you the highest sale price isn't always the one that leaves you with the highest profit.
- Tracking net profit per item, not just revenue, is the single biggest habit change that improves a LEGO reselling business.
Why Does Sale Price Feel So Different From Real Profit?
Sale price feels different from real profit because it's the number you see first, while fees, shipping, and packaging get deducted quietly over the following days as payouts land. In my experience, that gap is where a lot of sellers lose track of whether they're actually growing a profitable business or just moving inventory around at breakeven.
When I sell a set for $80, that $80 is a headline number, not a takeaway number. By the time BrickLink or eBay fees come out, I've paid for a shipping label, and I've boxed it up with padding, I might be looking at something closer to $58 to $65 in real profit. None of that means the sale was bad. It just means the sale price was never the right number to plan a business around in the first place.
How Much Do Marketplace Fees Actually Cost You?
Marketplace fees typically run anywhere from 0% on Facebook Marketplace to a range that can climb close to 25% of your total sale on eBay once promoted listings are involved, with BrickLink and Whatnot usually landing somewhere in between depending on the day and the promotion. Fee structures change over time, so I'd always recommend double checking current rates on each platform before you finalize your pricing model.
eBay has genuinely been the love of my life for sourcing and selling LEGO minifigures, and I've sold well over $100k worth of LEGO there over the years. But the catch is promoted listings. To get real visibility on a lot of listings, especially in a crowded category, sellers often end up paying for promotion, and once you stack that on top of standard selling fees and payment processing, your total take rate can get close to a quarter of the sale price. That's not a reason to avoid eBay. It's the broadest-demand marketplace in this hobby and it's rare to find another channel that puts your listing in front of that many buyers. It's just a reason to know your real number before you list.
BrickLink tends to be the cheaper option of the major platforms, which is part of why it's the go to spot for individual parts, small lots, and minifigures where the sale price might only be a few dollars. Facebook Marketplace charges no platform fee at all, which is a big part of why it works so well as a sourcing channel, letting you buy inventory cheap before flipping it somewhere with more reach. Whatnot has had no-seller-fee days from time to time, and Whatnot sellers I know will plan bigger sales around those windows specifically to protect margin.
What Should You Budget for Shipping and Packaging?
Shipping and packaging should be budgeted as a real per-item cost, not an afterthought, because a $2 box, a roll of bubble wrap, and a shipping label can quietly eat 15% to 30% of your profit on a lower-priced item even though it barely registers on a higher-priced one. This is exactly why bulk lots and minifigures behave so differently in your profit math than sealed sets do.
A rare minifigure that sells for $150 can absorb a $6 shipping cost without much pain. A common minifigure that sells for $8 cannot. That's part of why eBay sellers often can't justify shipping orders under $5, and it's also why BrickLink works so well for those low-dollar individual pieces, since its fee structure makes it realistic to sell $2 or $3 worth of product as long as the buyer covers shipping. If you're building out a parts or minifigure business, I'd recommend tracking your average shipping cost separately from your fee percentage, because the two behave very differently as your price point moves up and down.
How Do Returns and Refunds Change Your Real Margin?
Returns and refunds change your real margin by turning what looked like a profitable sale into a net loss once you factor in the original shipping cost, the return shipping, and the marketplace fee that doesn't always come back to you in full. In my experience, the sellers who get blindsided by this are the ones tracking profit at the moment of sale instead of averaging it across a full month or quarter, including the returns.
I personally build an assumed return rate into my average margin rather than pretending every sale is final and clean. It doesn't have to be dramatic. Even budgeting a small percentage of sales as returns will give you a far more honest profit number than ignoring the possibility entirely, and it means a bad week won't feel like a crisis, because you already planned for it.
Which Platform Actually Leaves You With the Most Profit?
The platform that leaves you with the most profit depends heavily on the item type, your audience, and how much time you're willing to put into presentation, and there's no single answer that holds true across sealed sets, bulk lots, and individual minifigures. This is why most serious resellers I know end up using two or three platforms instead of betting everything on one.
| Platform | Typical Fee Load | Best For | Profit Notes |
|---|---|---|---|
| Facebook Marketplace | None | Local sourcing and cash sales | Best margin when you can meet locally, but time and travel are real costs |
| BrickLink | Lower than eBay | Individual parts, minifigures, small lots | Good margin retention on low-dollar items where eBay shipping math falls apart |
| Whatnot | Varies, sometimes no fee | Live audience sales, character-driven themes | Can push sale price above market once you build a following, offsetting fees |
| eBay | Can approach 25% with promoted listings | Maximum buyer reach and fast sell-through | Highest visibility, but promoted listings compress margin fast |
I've seen sellers use Facebook Marketplace and estate sales to source bulk lots cheap, break them into individual minifigures and parts, sell the low-dollar pieces on BrickLink where the fees make sense, and push the standout figures and sets onto Whatnot or eBay where they can command a real audience. That kind of layered approach almost always beats picking one platform and hoping it's the right one for every item in your inventory.
How Do You Calculate True Profit Per Item?
You calculate true profit per item by starting with your sale price, subtracting the platform fee, subtracting payment processing if it's charged separately, subtracting shipping and packaging, subtracting your original cost of goods, and then subtracting an averaged slice of your expected return rate. Skip any one of those steps and your number stops being real.
Here's the basic formula I use when I sort through a batch of sales at the end of the month:
- Sale price, minus
- Marketplace and payment processing fees, minus
- Shipping label and packaging cost, minus
- What you originally paid for the item (or its share of a bulk lot), minus
- Your average return rate applied as a percentage, equals
- True net profit
Doing this by hand for a handful of sales is manageable. Doing it across a real inventory of hundreds of minifigures and parts is where most sellers give up and just eyeball it, which is exactly the gap brick'em's haul calculator and inventory tools were built to close, so you can see real profit per item without rebuilding a spreadsheet every week.
Heads up: This is not financial or legal advice. We're sharing what we've learned from the LEGO reselling community.
What's a Realistic Profit Margin Target for LEGO Resale?
A realistic profit margin target for LEGO resale after all fees, shipping, and an assumed return rate usually lands somewhere in the 30% to 50% range for most sellers, though it swings widely by category, with minifigures and bulk lots often outperforming used sets once labor and fees are accounted for. I wouldn't treat any single number as gospel since it depends so much on your sourcing cost and platform mix.
From what I've learned buying and selling across categories, minifigures tend to be the strongest margin category because they're compact, story-driven, and cheap to ship relative to their value. A minifigure worth $2k to $3k is still about the size of an index finger, which means your shipping cost stays tiny while the sale price stays huge. Used, opened sets on the other hand generally don't hold or gain value the way sealed sets and minifigures do, so I wouldn't lean on them as your primary profit driver if you have a choice in what you're sourcing.
How Can You Track Profit Without It Becoming a Second Job?
You can track profit without it becoming a second job by logging cost, fees, and sale price at the moment of each sale instead of trying to reconstruct it later from memory or scattered marketplace payout emails. I started doing this the hard way, in a messy spreadsheet, before I realized how much time it was costing me every single month.
These days I use brick'em to keep bulk minifigure scanning, identification, and inventory in one place, so pricing and cost data are attached to the item from the moment it comes into my inventory instead of getting reconstructed after the fact. If you're still tracking profit in your head or in a notebook, I'd genuinely recommend trying a tool built for this before your inventory gets too big to fix retroactively. You can check current values against brick'em's collection value calculator and cross-reference specific pieces in the minifigure database before you commit to a price.
What Mistakes Quietly Kill LEGO Reseller Margins?
The mistakes that quietly kill LEGO reseller margins are almost always invisible ones: pricing off sale price instead of net profit, ignoring return rates until they show up as a bad month, underpricing shipping on small items, and paying for promoted listings on inventory that wasn't going to move fast enough to justify the spend. None of these show up as one dramatic loss. They show up as a business that feels busy but never quite grows its bank balance.
- Pricing based on what a set "sold for" on BrickEconomy or a marketplace comp, without subtracting fees and shipping first
- Not budgeting for returns until a refund actually happens
- Shipping low-dollar minifigures the same way you'd ship a $150 set
- Promoting listings on items you were always going to be underwater on
- Not separating cost of goods by item when a bulk lot gets split into dozens of individual pieces
A seller I know spent months wondering why their Whatnot shows felt profitable but their bank account didn't reflect it, and the answer turned out to be boosted promotion spend that wasn't being tracked against the sales it generated. Once that got logged properly, the real margin picture looked completely different, and the fix wasn't to stop promoting, it was just to track it honestly.
Frequently Asked Questions
What percentage of a LEGO sale actually goes to fees?
It depends heavily on the platform and whether you use paid promotion. Facebook Marketplace charges nothing, BrickLink tends to run lower than eBay, and eBay can approach a quarter of your sale price once promoted listings are added on top of standard fees. Always verify current rates before pricing.
Should I include shipping cost in my LEGO listing price?
In my experience, building shipping into your listed price or clearly accounting for it separately both work, as long as you're consistent and tracking the real cost per item. What matters most is that shipping never gets left out of your profit math entirely, especially on lower-priced minifigures and parts.
How do I estimate a fair return rate to plan for?
There's no universal number, and it varies by platform and item condition. I recommend tracking your own actual returns over a few months and using that real percentage going forward, rather than guessing or assuming returns won't happen to your business.
Is BrickLink or eBay better for LEGO profit margins?
It depends on the item. BrickLink generally retains more margin on low-dollar individual parts and minifigures because of its lower fee structure, while eBay's broader reach can produce a higher sale price on higher-value sets and figures even after its fees are factored in.
What's the easiest way to track true profit across a large inventory?
Manually tracking dozens or hundreds of items in a spreadsheet gets unmanageable fast. Tools like brick'em let you attach cost, fees, and sale price to each item as it moves through your inventory, so your real profit number is available anytime instead of reconstructed at tax time.
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