These default to Kickstarter's published rates. Edit any field if your project uses a different processor or region.
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Kickstarter charges a flat 5% platform fee on the total amount a successfully funded project raises. On top of that, payment processing (handled through Stripe) adds 3% plus $0.20 per pledge of $10 or more, or 5% plus $0.05 per pledge for smaller pledges under $10. Combined, most US campaigns lose roughly 8% to 10% of funds raised to fees, and none of this is charged if a project fails to reach its goal.
The processing fee schedule depends on the size of each individual pledge, not the campaign total. A campaign built on many small pledges under $10 pays the higher percentage-based micro-pledge rate on each one, while a campaign with fewer, larger pledges benefits from the lower 3% plus $0.20 rate. This calculator uses your average pledge (total raised divided by backer count) to pick a schedule, so a campaign with a wide mix of reward tiers will see a real result that differs slightly from this estimate.
This tool estimates platform and processing fees only. It does not account for currency conversion if you collect pledges in a currency other than USD, refunds or failed payment collections, or the cost of manufacturing and shipping rewards, which for most physical products is a far larger expense than Kickstarter's own fees.
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