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.

Learn More
Sell on MainMarket

Why Sell on MainMarket

1

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.

2

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.

3

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

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.

Buy Now or Accept a Bid

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.

Secure Escrow for Your Protection

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

8.5%

For orders placed through the marketplace on your listings. This includes all credit card processing fees, platform services, and seller protection.

Collection Link Orders

4%

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.