Custom Fees

Seamlessly add custom fees at checkout

5.0

Free to install

Custom Fees overview

Powerful Rules Engine
No-code Setup
Success-Based Pricing
Fee Revenue Analytics

Custom Fees lets you add any type of additional charge to your store's checkout without writing a single line of code. From payment processing costs and handling fees to international surcharges and weight-based charges, you can automatically apply the right fee to the right order every time. Set up your rules using fixed amounts, percentages, or weight-based calculations, and fine-tune exactly when they apply with flexible conditions. There's no limit to how many rules you can create, so your fee structure can be as simple or detailed as your business needs. Pricing is straightforward: the free tier resets every month, you only pay a percentage of the fees you collect, and your rate goes down as your volume grows. Your customers see transparent, clearly labeled fees right at checkout. Stop absorbing hidden costs and start recovering your margins on every order.

5.0 Average Rating

3 reviews

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Jemimascreativequi/ Aug 21, 2026

Works Perfectly and was easy to set upI set custom fees for each country and was pretty easy. the software is very straight forward and simple to understand. I had an issue with the testing part of it but support jumped...

team Particle Spectrum Labs

Thank you! Great to see all your country fees automated and working. Anything you need down the road, just say the word. Wishing you and your store every success.

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Babbajon/ Jul 21, 2026

Essential App!Now with tariffs being imposed in the EU and USA, this has become essential. Allows me to charge a EU/US customer a fixed fee OR a percentage based on value or number...

team Particle Spectrum Labs

Thank you, this genuinely made my day. Reviews like this really do mean a lot. Anything you ever need, just reach out.

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Ashmysticart/ May 24, 2026

Functions well!The plugin functions well for adding fees to Wix Bookings, which I struggled to get working any other way. On the checkout form page it shows the fee as an extra line-item, along...

team Particle Spectrum Labs

Thank you for the kind words! I’m happy to hear Custom Fees solved the Wix Bookings fee setup for you. Please reach out anytime if you need help or have any feature requests.

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Pricing & plans

Base plan

Free to install

Free tier each month, then a small percentage of fees collected

Monthly free allowance included

Rates decrease as you grow

Full access to all features

Zero risk to get started

* The price does not include applicable taxes, which may apply according to your billing address. Additional charges may apply.

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