Adam Webb.

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Kickstarter calculator (2026)

A £30,000 raise does not land £30,000 in your bank. Plug your numbers in below and see what actually arrives after Kickstarter's 5% platform fee and roughly 3% + £0.20 per pledge in payment processing.

1. Add your agency fees

If you're hiring an agency, drop in what they'll charge. Some take a flat retainer, some take a percentage of your raise, some take both. Leave at 0 if you're going without an agency.

2. Add your marketing spend (if you have any)

Anything you'll spend directly on ads, PR, influencers, giveaways or landing-page tools. This is on top of any agency fee above.

3. Run the numbers

One calculator, two directions. Pick which number you already know and the tool solves for the other.

Which number do you already know?

Enter what you plan to raise on Kickstarter. I'll show you what lands in your bank and how many backers you need.

Working out a realistic funding goal is one of the first things I do with founders.

The calculator gives you the fee side. It doesn't tell you whether the goal itself is right. That takes cost of goods, target margin, shipping estimates and honest projections on the size of your list. A 60-minute strategy call gets all four on paper.

Book a £60 strategy call

What the calculator assumes

Common questions

How much does Kickstarter take from your raise?

Kickstarter takes 5% of successfully-collected funds as a platform fee. On top of that, payment processing is roughly 3% plus a small per-pledge fee. Combined, expect to lose about 8–10% of your gross raise. On a £30,000 raise with 500 backers, that's around £2,500–£2,900 gone before you see a penny.

Does Indiegogo charge less than Kickstarter?

No. Indiegogo's platform fee is also 5%, and payment processing is comparable. Fees are not a good reason to pick one platform over the other. Audience size and category fit are the real questions. I wrote about that here.

Are Kickstarter fees taken before or after tax?

Fees are deducted from the gross pledge amount before VAT or income tax comes into it. VAT and corporation tax are separate calculations, handled by you after Kickstarter pays out.

When does Kickstarter deduct the fees?

Automatically, before the payout hits your bank account. Payout typically arrives around 14 days after the campaign ends. You never see the gross number, only the net.

Do backers get refunded the fees if the campaign fails?

If a campaign doesn't reach its goal, nobody's card is charged. No fees, no pledges, no payout. That's the whole point of Kickstarter's all-or-nothing model.

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