Earn More From
Your Collection
Keep more of your sales with the lowest fees in collectables. List in minutes, sell to millions of passionate collectors, and get paid quickly—all while staying in complete control of your pricing and inventory.

Why Sell on MainMarket
Keep More Money
At just 8.5% for marketplace orders and 4% for Collection Link orders (including credit card fees), we have the lowest seller fees in collectables.
Stay In Control
Set your own prices, negotiate with buyers, and decide if you want to offer free shipping. You're always in the driver's seat.
Flexible Selling Options
List individual items, create Collection Links for bulk uploads, or let buyers make offers. Sell your way, on your terms.

How Selling Works
1. List Your Items — Add photos, descriptions, and set your price in minutes. Our platform guides you through every step to create compelling listings that sell.
2. Connect With Buyers — Your listings are instantly visible to millions of collectors. Accept offers, negotiate directly, or sell at your asking price.
3. Ship & Get Paid — Once sold, ship your item with our prepaid labels. We handle payment processing and release funds quickly after delivery confirmation.
Buy Now or Accept a Bid
When you post a listing, it's instantly shared with our community through email notifications and featured on our platform. Set your asking price and watch the offers roll in.
Our order book works for you: When someone places a bid on a product matching your listing—whether higher or lower than your asking price—you'll receive an email notification instantly. Each bid is a commitment to purchase that exact product, in that condition, at that price right now.
You decide which bids to accept. No pressure, complete control. It's the fastest way to turn your collection into cash while staying in the driver's seat.


Collection Links:
Sell More, Pay Less
Got a large collection to sell? Create a Collection Link and upload multiple items at once. Share your unique link anywhere—social media, forums, your website—and drive buyers directly to your listings.
The best part? Sales from Collection Links come with greatly reduced platform fees since you're bringing the traffic. Keep even more of your earnings while reaching buyers on your own terms.
Secure Escrow for Your Protection
How payments work: When a buyer purchases your item, their payment is processed immediately but held in secure escrow by MainMarket. This protects both you and the buyer throughout the transaction.
When you get paid: Once you ship the item, we track the order through delivery. The moment tracking confirms the package has been delivered to the buyer, funds are automatically released to your account.
This escrow system ensures buyers receive their items before payment is released, building trust and protecting you from fraudulent chargebacks. It's a win-win for everyone.

MainMarket Seller Fees
Transparent pricing with the lowest fees in collectables. Keep more of your earnings with our competitive fee structure. All fees include credit card processing—no hidden charges, no surprise fees at checkout. What you see is what you pay.
Marketplace Orders
For orders placed through the marketplace on your listings. This includes all credit card processing fees, platform services, and seller protection.
Collection Link Orders
For orders placed through your Collection Links. This includes all credit card processing fees, platform services, and seller protection. Reduced fees when you bring your own traffic.
Ready to Start Selling?
Join thousands of sellers earning more from their collections. Get started in minutes.