| name | marketplace-fee-structure |
| description | Designs marketplace fee structures with commission models, premium tiers, and competitive analysis. Use when setting or restructuring pricing for a platform business. |
| allowed-tools | Read Write Glob |
| metadata | {"author":"matthewhitcham","version":"1.0"} |
Marketplace Fee Structure
When to Use This Skill
Use this skill when you need to:
- Design a fee structure for a two-sided marketplace
- Evaluate commission models, listing fees, and subscription tiers
- Analyze competitor pricing to find the right market position
- Create premium seller tiers with clear value propositions
DO NOT use this skill for SaaS pricing, e-commerce product pricing, or financial modeling. This is for marketplace platform fee design.
Core Principle
MARKETPLACE FEES MUST BE LOW ENOUGH THAT SELLERS STAY ON THE PLATFORM AND HIGH ENOUGH TO BUILD A SUSTAINABLE BUSINESS — THE FEE SHOULD NEVER EXCEED THE VALUE THE PLATFORM CREATES.
Phase 1: Brief
Required Inputs
| Input | What to Ask | Default |
|---|
| Marketplace type | "What does your marketplace connect?" | No default — must be provided |
| Average transaction value | "What is the typical transaction amount?" | No default — must be provided |
| Transaction volume | "How many transactions per month (current or projected)?" | 100/month projected |
| Competitors | "Who are your top 3 competitors and what do they charge?" | No default — research needed |
| Current fees | "What do you charge now, if anything?" | Nothing (pre-revenue) |
| Value provided | "What does the platform do for sellers beyond connecting them to buyers?" | Payments, discovery, trust |
GATE: Confirm the brief before designing the fee model.
Phase 2: Fee Model Options
Common Marketplace Fee Models
| Model | How It Works | Best For |
|---|
| Commission | % of each transaction | High-volume, variable-price marketplaces |
| Listing fee | Fixed fee per listing | Product marketplaces with many listings |
| Subscription | Monthly fee for seller access | Professional service marketplaces |
| Freemium | Free basic + paid premium features | Marketplaces building supply quickly |
| Lead fee | Fee per qualified lead or inquiry | Service marketplaces with high-value transactions |
| Hybrid | Combination of above | Mature marketplaces with diverse revenue needs |
Commission Rate Guidelines
| Transaction Value | Typical Commission | Rationale |
|---|
| Under $50 | 15-25% | Higher rate needed for unit economics |
| $50-500 | 10-20% | Standard range for most marketplaces |
| $500-5,000 | 5-15% | Lower rate to keep high-value sellers |
| Over $5,000 | 3-10% | Volume-based, sellers are price-sensitive |
Who Pays the Fee
| Option | Pros | Cons |
|---|
| Seller pays | Simple, common, hidden from buyer | Sellers build fee into price |
| Buyer pays (service fee) | Seller gets full price, transparent | Buyer sticker shock |
| Split | Fair perception | Complex to communicate |
GATE: Confirm the fee model and rate range before building the structure.
Phase 3: Build the Fee Structure
Base Fee Design
Document the core fee structure:
- Who is charged: Buyer, seller, or both
- When charged: At booking, at completion, or monthly
- Rate: Fixed amount, percentage, or tiered
- Minimum fee: Floor amount per transaction (if applicable)
- Payment processing: Who absorbs the 2.9% + $0.30 processing cost
Premium Seller Tiers
Design 2-3 tiers for sellers:
## Seller Tiers
### Basic (Free)
- Standard listing placement
- [X]% commission per transaction
- Basic analytics
- Standard support
### Professional ($29/month or reduced commission)
- Priority listing placement
- [X-3]% commission per transaction
- Advanced analytics and conversion tracking
- Featured in buyer emails
- Priority support
### Enterprise (Custom)
- Custom commission rates
- Dedicated account manager
- API access
- Custom branding options
- Volume discounts
Competitive Analysis Template
| Competitor | Commission | Listing Fee | Subscription | Other Fees |
|---|
| [Competitor 1] | | | | |
| [Competitor 2] | | | | |
| [Competitor 3] | | | | |
| Your Platform | | | | |
Positioning strategy: Price below the market leader but above the cheapest option. Compete on value, not price.
Phase 4: Polish
1. Fee Communication
Write clear fee explanations for:
Seller-facing:
"You keep [X]% of every transaction. We charge a [Y]% platform fee that covers payment processing, buyer acquisition, dispute resolution, and platform maintenance. No hidden fees, no surprises."
Buyer-facing (if applicable):
"A small service fee of [X]% is added to your order. This covers secure payments, buyer protection, and customer support."
FAQ entries:
- When are fees charged?
- How are fees calculated on discounted or refunded transactions?
- Are there any additional fees beyond the commission?
- How do I upgrade to a premium tier?
2. Fee Revenue Projections
Provide a simple projection template:
Monthly Transactions: [X]
Average Transaction Value: $[Y]
Commission Rate: [Z]%
Gross Revenue: X * Y * Z
Minus: Payment processing (~2.9% + $0.30 per transaction)
Minus: Refunds and disputes (~2-5% of gross)
Net Platform Revenue: [Result]
3. Quality Checklist
## Fee Structure Checklist
- [ ] Fee model selected with rationale
- [ ] Commission rate benchmarked against 3+ competitors
- [ ] Who pays (buyer, seller, or split) is decided and justified
- [ ] Premium seller tiers defined with clear value at each level
- [ ] Minimum transaction fee set (if applicable)
- [ ] Payment processing costs accounted for
- [ ] Fee communication copy written for both sellers and buyers
- [ ] FAQ covers fee calculation, timing, refunds, and upgrades
- [ ] Revenue projection model created
- [ ] Fee is sustainable (covers costs + margin) at projected volume
Example
Marketplace: Freelance design services
Average transaction: $750
Fee structure:
- 12% commission on seller (seller receives $660)
- 5% service fee on buyer (buyer pays $787.50)
- Total platform revenue per transaction: $127.50
- Payment processing absorbed by platform
Premium tier pitch:
"Go Pro for $49/month: Drop your commission from 12% to 8%. On your average $750 project, that saves you $30 per transaction. If you complete 2+ projects per month, Pro pays for itself."
Anti-Patterns
- Hidden fees — surprising sellers with fees they did not expect kills trust and generates chargebacks. Be transparent.
- Charging before value is delivered — listing fees before any sales discourages supply. Commission-based models align incentives.
- Race to zero — competing solely on lower fees attracts price-sensitive sellers who leave when a cheaper option appears.
- Overcomplicating tiers — more than 3 tiers creates confusion. Keep it simple.
- Ignoring payment processing costs — 2.9% + $0.30 per transaction adds up. Account for it in your revenue model.
Recovery
- Sellers resist the fee: Demonstrate the value — what does the platform provide that justifies the cost? If you cannot articulate it, the fee is too high.
- Buyers resist service fees: Test absorbing the fee into the seller's commission. Hidden fees feel worse than slightly higher prices.
- Revenue is not covering costs: Either increase volume (more transactions) or increase take rate (higher fee). Raising fees on existing sellers requires advance notice and justification.
- Competitor undercuts on price: Compete on value, not price. Better sellers, more buyers, superior trust features justify a premium.
