Get up to 8% cashback every time you shop at Principles - instantly.

Buy a Principles cashback card through tuck. before your next shop. The cashback lands in your wallet the moment you pay - no codes, no waiting, no claiming.

Cashback rate: up to 8%

Instant - added the moment you purchase

How to save at Principles

1. Get the app set up: Download tuck. from the Apple App Store or Google Play Store. Sign up takes less than a minute, and you're ready to start earning on your Principles shop straight away.
2. Find Principles in the app: Open tuck. and search for Principles. You'll see the live cashback rate instantly, so you know exactly what you'll earn before you shop.
3. Enter your spend amount: Enter the exact amount you plan to spend. tuck. will create a digital cashback card matched to your total in seconds.
4. Pay securely: Use Apple Pay, Google Pay, or Instant Bank Payment to complete your purchase. Everything is fast, smooth, and fully secure.
5. Get your cashback instantly: As soon as the payment goes through, your cashback is added to your tuck. wallet instantly - no delays and no tracking needed.
6. Use your Principles card: Open your wallet in the app and use your Principles gift card at checkout. Scan it in-store or enter the details online to pay with ease.

The perks of Principles cashback with tuck.

• Assured cashback: Every Principles purchase through tuck. earns you cashback you can rely on. Your reward is tracked and updated after each transaction - no missing payments and no claim forms.
• No hidden costs: tuck. is free to use with no subscription or membership fees. A small fee applies when withdrawing your balance to your bank, and it's always shown clearly before you confirm.
• Flexible shopping options: Use your Principles digital cashback card seamlessly whether you're browsing the latest collections online or picking up a new outfit in-store. It's ready when you are.
• Financial protection: Your personal payment information is never at risk. tuck. uses advanced encryption and industry-standard security measures to protect every digital cashback card you create.
• Instant cashback: Your Principles cashback is added to your balance the moment your payment completes - no waiting periods, no points to redeem, no claim windows.
• Accurate live rates: Cashback rates on Principles are displayed in real time within the app. You'll always see the exact rate before you commit to your purchase.

About Principles

Principles has long been a go-to destination for British women seeking smart, tailored clothing that transitions effortlessly from the boardroom to special occasions. Known for its sophisticated designs and quality fabrics, the brand offers a curated collection of womenswear spanning dresses, suits, separates, and accessories. Principles cashback cards purchased through tuck. work exactly like regular payment cards. The only difference: tuck. gives you money back the moment you buy. With tuck., you get 8% cashback every time you shop at Principles. That's real money back - not points, not vouchers, not a rebate in 90 days.

Principles cashback cards purchased through tuck. work exactly like regular payment cards - use them in-store and online without any restrictions. The only difference: tuck. gives you money back the moment you buy.

With tuck., you get up to 8% cashback every time you shop at Principles. That's real money back - not points, not vouchers, not a rebate in 90 days.

• Save on new arrivals: Step into the new season with confidence and save on every fresh collection from Principles. Your 8% cashback ensures your wardrobe updates are always rewarding.
• Shop the sale smarter: Combine the amazing discounts in the Principles sale with instant cashback from tuck. to maximise your savings on those must-have pieces.
• Earn on every order: Whether it's a new work blouse or an elegant occasion dress, every Principles purchase earns you real money back with tuck. - online or in-store.
• Instant style savings: Get instant cashback on your Principles shop, making every smart purchase even more satisfying. No waiting, just real money back in your tuck. wallet.

How to maximise your Principles savings

• Shop the seasonal collections: Principles regularly updates its collections for spring, summer, autumn, and winter. Use tuck. to earn on those essential seasonal wardrobe refreshers.
• Combine with flash sales: Keep an eye out for Principles' limited-time sales and special offers. You can use your tuck. cashback card to pay and still collect your 8% cashback on the discounted price.
• Plan your occasionwear: Shopping for a specific event? Purchase your Principles items through tuck. to ensure you're getting instant savings back on those special occasion dresses and outfits.

Keep an extra £550 every single year

Unlock smarter spending and become part of a community that effortlessly saves hundreds of pounds annually. tuck. integrates seamlessly into your shopping routine, making every purchase a little more rewarding.

Discover new ways to save on your fashion favourites

Explore the latest trends, discover timeless classics, and refresh your wardrobe with Principles' sophisticated fashion. With tuck., you'll find it easy to save on stylish dresses, tailored separates, and elegant occasionwear.

Save on your terms, every single time

tuck. empowers you to take control of your spending and saving. Earn cashback on your terms, whether you're shopping online for convenience or browsing in-store for inspiration.

Why tuck.?

Designed for your everyday shopping

• Get paid right away: No waiting for your money. Your 8% cashback from Principles lands in your tuck. wallet the moment you complete your purchase – no pending periods, no tracking receipts needed.
• Hundreds of partnered brands: tuck. works with a huge and growing network of your favourite UK retailers. Earn real money back on everything from groceries and fashion to dining out and travel.
• Easy phone wallet access: Your Principles digital cashback card is ready to use instantly. Simply add it to Apple Pay or Google Pay for seamless in-store payments, or copy details for online checkouts.
• Treat friends and earn: Share the savings by sending digital cashback cards to friends and family. They get to spend, and you still earn the cashback – it’s a win-win for everyone.
• No subscription fees: tuck. is completely free to download and use, with no hidden monthly charges or membership fees. We only apply a small, transparent fee when you withdraw your savings to your bank account.
• Versatile payment options: Pay how you prefer. Your tuck. digital cashback card can be used by scanning at the till, entering details online, or adding it to your mobile wallet for ultimate convenience.

How tuck. makes money

When you create a Principles digital cashback card, Principles pays tuck. a small fee for bringing them a customer. We pass that directly to you as cashback. You pay the normal retail price, the shop gets a guaranteed sale, and you get real money back. Download the app to get started.

What our users say

"I bought a gorgeous new dress for a wedding at Principles and got 8% cashback instantly with tuck. It felt like a proper bonus, really chuffed with it!"

"My wife loves Principles for her workwear. Using tuck. means I can get her a digital card and know she's getting real money back on her smart tailoring."

"Never thought saving on fashion could be so easy. I grabbed a new Principles skirt using tuck. and the cashback was in my wallet before I even left the shop. Brilliant!"

Frequently Asked Questions

Is this the official Principles application?

tuck. is an independent platform, not affiliated with Principles directly. We provide guaranteed cashback rewards through our own system.

How does this work in the physical store?

Simply open the tuck. app, select Principles, and create a digital cashback card for your exact spend. The app provides a scannable barcode or gift card number that the cashier can use at the till, just like any other payment card.

Can I use my Principles cashback card with other discounts or sales?

Yes! Your tuck. cashback card acts like a payment method. You can typically combine it with any valid Principles sale prices or promotional codes you might have, maximising your savings.

Is there a minimum spend to earn cashback at Principles?

No, there's no minimum spend required to earn cashback. Whether you're buying a single accessory or a full new outfit, every pound spent at Principles through tuck. earns you 8% cashback.

How quickly does the cashback appear in my tuck. wallet?

Your cashback for Principles purchases is added to your tuck. wallet the very instant your payment is completed. No waiting days or weeks for it to clear.

Can I give a Principles cashback card to someone else?

Absolutely. Once you've created a Principles digital cashback card through tuck., you can easily share the details with a friend or family member for them to use for their own Principles shopping.

What happens if I need to return an item bought with a Principles cashback card?

Returns at Principles are handled according to their normal store policy. The refund will typically be credited back to your digital cashback card, and any associated cashback adjusted in your tuck. wallet.

Are all Principles products eligible for cashback?

Generally, all purchases made directly from Principles, whether online or in-store, are eligible for 8% cashback through tuck. This includes full-price items and sale items.

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Start saving at Principles today

Download tuck. free and earn 8% cashback at Principles - instantly.