25 Boxing Day Subject Lines To Use This Year [2025]

If you think that the holiday sales season stops at Christmas, you are missing out on the extra boost Boxing Day can offer you. This holiday, celebrated after Christmas Day, is perfect for giving your customers extra offers and incentives to intrigue and convert them.

But without the right subject line, your promotional emails might get lost in inboxes full of holiday emails. Below, you’ll find Boxing Day subject lines and best practices to make a great impression on your target audience and increase your open rates.

Boxing Day Subject Line Ideas

Let’s look at great subject line examples from notable brands:

How To Ace Your Boxing Day Email Subject Lines

If you want to ensure that your email subject lines are a hit, here are some simple practices to introduce your email and grab your subscribers’ attention:

• Copy: Create festive copy and add the words “Boxing Day” to show your audience that this is a different campaign from your Xmas ones.
• Length: Keep your creations short to amplify readability. Usually, 20-40 characters are the ideal length.
• Emojis: Use the gift or other emojis to make your subject line more special and boost visibility.
• Spam words: Don’t use spam-triggering words to ensure that your campaign lands in the inbox.
• Benefit: Stress the value the subscriber will get by adding your discount or savings in your subject line.
• Personalization: Include the recipient’s name in the subject line to make them feel special.

These simple yet effective tips will help you ace your Boxing Day email marketing efforts. Get inspired to craft your own or use an AI writer to optimize them based on your goals and audience’s needs.

Try Moosend

Analyzing Effective Boxing Day Subject Lines

Now, let’s look at some examples and what makes them work.

1. Satya Organic

Subject line: Satya Sale: Buy One Get One 50% OFF!

Why it works: This subject line example by Satya Organic is perfect for promoting your eCommerce business. The brand shares the immediate benefit the subscriber will receive if get the incentive, boosting its open rate.

Also, the 50% OFF intrigues the recipient and encourages them to click on it faster. Overall, the brand structures its Boxing Day campaign and subject line around the value proposition to engage email subscribers with the holiday email marketing campaign.

Extra reading: Need more subject lines to get inspired? Check out our 370+ eCommerce subject line examples for more inspiration.

2. Endy

Subject lines: 🚨Save $100 when you shop this Boxing Day

Why it works: Instead of adding the discount percentage like Satya, Endy highlights the amount of money the potential buyer will save if they shop on Boxing Day. This is a clever way to get consumers to open your email campaign and click on your offer.

Moreover, using an emoji will help your message stand out in the cluttered inbox, so make sure to use them like Endy did to catch your subscriber’s attention.

3. Jeffree Star Cosmetics

Subject lines: Exclusive Boxing Day Special

Why it works: Using words like VIP and exclusive is a great way to show your subscribers that your offers are just for them. Here, Jeffree Star Cosmetics uses the words “Exclusive” and “Special” to entice potential holiday shoppers and make them interact with the campaign.

You can use the above example with a beautiful email design and copy to increase engagement and loyalty. Make your offer extra special for your customers to drive sales.

4. Terre Bleu Lavender Farm

Subject line: Store-Wide Boxing Day Sale – Last Chance for Super Savings

Why it works: Terre Bleu Lavender Farm splits its Boxing Day subject line into two parts. In the first one, they inform subscribers about the store-wide Boxing Day sale to get potential shoppers to visit the store and find out more about them. The second part uses FOMO to get the recipient to act fast, as this is their last chance to save money and enjoy their favorite products.

Combining different elements is a must for creating converting subject lines. These two tactics are perfect for boosting urgency and engagement simply and effectively.

5. Nutriseed

Subject lines: 🎁 Boxing Day Sale Begins Now – 15% OFF!

Why it works: Nutriseed also leverages the power of emojis to increase visibility in the inbox. Compared to the above examples, the brand uses its email subject lines copy to inform its customers that the sale begins now. This way, they can start planning their shopping and enjoy 15% off their favorite products.

Moreover, using words like “Now” amplifies the sense of urgency so you can use it to boost your open rates effortlessly.

More Boxing Day Email Marketing Resources

• 7 Boxing Day Email Examples You Can Easily Copy
• 5 Sales-Oriented Boxing Day Email Templates For 2025

Boxing Day Subject Lines For Better Open Rates

A great subject line will help you make an excellent first impression and stand out from the competitors during the busy holiday shopping season. Using the above examples as inspiration is a great way to save time rather than crafting new ones from scratch without help.

And of course, you can use Moosend’s tools to refine your Boxing Day email subject line creations for this holiday and the upcoming ones, like New Year. All you need to do is sign up for an account or request a free trial and see what it offers.

Try it out today!