241+ Best Discount Offer Email Subject Lines [2021]

241+ Best Discount Offer Email Subject Lines [2021]

If you're looking to boost your email open rates and increase sales, your email subject line is the first (and most important) step in achieving those goals.

Did you know that 33% of email recipients open emails because of an engaging subject line?

That's why it's critical to craft a catchy email subject line that will get you the traffic and conversions you deserve.

We've put together a list of 241+ best discount offer email subject lines [2021].

Some are proven examples from other successful campaigns, and some are creative ideas to inspire you.

Creative Email Subject Line Ideas

  • Breaking news! Up to 25 off for today only
  • 7 Spa Treatments to Put You on the “Nice List”
  • Earn double points for [insert product or action].
  • Sephora: Get insider tips on our Facebook page
  • Extended for a day! Get Free shipping through Friday
  • Extended. 48- hour sale – 20 percent off coupon
  • HP: Time is running out…Save up to $300
  • $0 Enrollment Fee — Membership Sale
  • You are invited. 10 percent off for beauty products
  • [New Product] has arrived. Order now before we run out.
  • Nissan: Bring a friend to our event and save
  • New must haves for your office
  • HP: Flash. Sale. Alert.
  • Exciting new changes at [your company]
  • $30 Massages! 1 Day Only!
  • Get 10 percent off on all your purchases.
  • Topshop: Meet your new jeans
  • Hurry up or else you will regret
  • Guess: Free shipping extended
  • Kate Spade: open to see our top picks of sale
  • Feed your family members without breaking your bank.
  • Sephora: You’re invited: 10% off for Beauty Insiders
  • 25-40% off – Email-Only Offer – Today Only
  • IKEA: Storage problems solved
  • Say Goodbye to your PMI
  • 4 days only. 10 percent off and free shipping.
  • EXTENDED! 48-Hour Sale – 10% Off Coupon
  • Refer your special one and get free service.
  • IKEA: Get more kitchen space with these easy fixes
  • You’re Invited! New Product Launch Party at [Your company]
  • Guess: Refer a friend and save big
  • United by Blue: This is Not a Sale. It’s a Celebration.
  • Last chance to get hot deals on designer clothes
  • Don’t wear last year old style
  • Guess: Tonight only: A denim lover’s dream
  • Sale Alert. Grab today only.
  • $5 Deal Day! Get ‘Em While You Can!
  • Coupon code for $ 30 off on $150 purchase
  • Snow Day SALE!
  • Last chance to earn $200 while doing your shopping
  • Her style awaits.
  • Cool off with a SALE
  • Weekend sale. Hot deals only for you
  • Converse: Hundreds of new markdowns added today
  • Converse: See the best deals on Facebook
  • Your saving code is expiring today
  • Start your New Year Off Right — 25% off Spa Packages
  • Enjoy [season] with rates from $65
  • Free Gift to the first 100 visitors
  • 🍁The [Brand Name] Start of Fall Sale!🍂
  • Last chance! Be sure to grab the best price!
  • Miss Selfridge: Stop EVERYTHING! Up to 50% off ALL Dresses 🚨👗
  • Time is running out. Grab your hot deal
  • Yours in 2 days (free shipping!) + 40% off
  • Get hot deals on age-defying beauty tricks
  • 11 Great Deals for the Next 2 Days
  • Topshop: Beyoncé’s Ivy Park is here
  • Loyalty Members: 40% off today!
  • Our Gift to You – $10 Promotional Gift Card
  • $ 10 promotional gift card
  • Tonight only. Save $ 4 on your order.
  • Start your new year with 30 percent off. Spa packages
  • Friday might hot deals and discounts that you don’t want to miss
  • Say hello to a new you — $49 women’s hair cuts
  • We are thankful to our customers. Free coupon
  • $ 5 off for every inch of snow.
  • Share the love – refer someone and get next service FREE!
  • 5 big discounts you won’t want to miss this month
  • Nissan: Your inside look at the all-new 2017 Nissan Armada
  • Share the love. Get 50% off when you refer someone this month!
  • Free shipping extended
  • Free Gift! Happy Valentine’s Day, Sweetheart!
  • Discover bride latest fashion and grab hot deals
  • Last day. Pick your 6 favs.
  • BOGO teeth whitening treatments this month!
  • Free deal for loyal members
  • Nissan: Sign up to be notified when Titan XD arrives
  • IKEA: Save with this week’s flyer
  • Last chance to save your hard earned money
  • We love you. Flash sale today
  • Exclusive deal: free samples of famous facial masks
  • De Beers: Her style awaits
  • THE ICONIC: The sale’s on SALE! 😱
  • Get it while It’s in the stock
  • Rapha: Last chance to get 25% off all base layers
  • Pizza Hut: Tonight only. Save $5 on your order.
  • Everything you need when the temperatures [rise, fall]
  • Up to 30 percent off on your favorite clothing.
  • Last chance to get 50% off!
  • Book now, save later: 25% off summer services!
  • We want your feedback! $50 for your thoughts
  • Guess: Don’t wait. You’ll miss out on the sale of the year.
  • Ending in 26 hours. 25 percent off on shopping
  • TODAY. Post [holiday] Flash Sale! 2 for $20
  • We’re thankful for our customers: Coupon Inside
  • Guess: Don’t wear last year’s styles.
  • #NationalDrinkWineDay – 15% Off Your Favorites!
  • One day left. Hotel sale
  • La Mer: Age-defying beauty tricks
  • Nissan: Go green in 2016 with a new eco-friendly car
  • The new collection of the season is here
  • $14 Days of Yoga for $14
  • Family and friends week. Up to 60 percent off
  • Our 5 Year Anniversary—$5 off every November class
  • $50 Massage today at 12:30 pm
  • First Cycling Class is FREE!
  • We’ll do your taxes for $50
  • Rip Curl: Two for two
  • Luxury sale is waiting for you.
  • 2 weeks Unlimited Classes for $50
  • Free Service Upgrade — get more for less!
  • Storage problem is solved
  • It’s time for your cleaning! Come in for a free electric toothbrush
  • Converse: Ending in 24 hours: 25% off sitewide
  • Winter is coming – we’ve got a sale!
  • Hundreds of new sales discounts and deals added today
  • Because We Love You – Flash Sale Today!
  • Topshop: Get a head start on summer
  • Guess: Wanted: Cute and affordable fashions
  • Warm up to savings.
  • Cyber Monday Madness — Everything on Sale!
  • National drink wine day: up to 30 percent off on your favorite brand
  • Get more kitchen space with these DIY tricks
  • La Mer: Get it while it’s in stock
  • Rapha: Gift inspiration for the discerning cyclist
  • Seafolly: Hot new summer arrivals just for you
  • 9-minute miracles. Try out these products.
  • Friends & Family Week – 25% off all services
  • Pre-Summer Sale on 4th of July travel
  • See the fashion best deals on Instagram
  • Jersey Mike’s Subs: Enjoy a birthday gift on us
  • Two for two, three for three
  • Birchbox: Tell a friend. Get a month free.
  • Get out of debt! FREE credit counseling session
  • An Exclusive Offer for You
  • Deals for fresh look
  • Breaking News! $25 off Today Only!
  • La Mer: Exclusive offer: Free samples of award-winning facial masks
  • Sephora: Bring a friend to our VIP party
  • Don’t wait or else you will miss out the biggest sale
  • Tell us more & get $50 off your next trip
  • One Day Left: Hotel Sale
  • Last chance to get this hot deal
  • “[Brand Name]’s back for fall”
  • Nissan: Weekend sale. Inventory you need to see.
  • Rapha: Complimentary gift wrap on all purchases
  • Pizza Hut: Feed your guests without breaking the bank
  • Introducing our latest…[product/feature here]
  • Guess: Stay in the know. Follow us on Twitter.
  • Email subscriber exclusive: [Product name] sale is here
  • IKEA: Where do all these toys go?
  • Your beauty issues resolved
  • Sephora: Last day: Pick your 5 faves
  • Refer a friend: Get a $50 Amazon gift card
  • Can’t take the heat? How about this sale?
  • De Beers: Uncover your bridal style
  • Tonight only: A denim lover dream
  • Plumbing problem? Let us fix it — deal inside!
  • west elm: 💡 THIS SALE IS LIT 💡 20% off all lighting
  • Say goodbye to your bad debts.
  • Pizza Hut: Friday night discounts you don’t want to miss
  • Don’t Let These Get Away
  • Everything on sale
  • Sephora: Ends today: Get 10% off all purchases
  • Want 20% off your next order?
  • Free gift on Christmas carnival
  • Coupon Code for $25 off $100 purchase
  • L’Occitane: Beauty You’ve Had Your 👀 on, Now with $20 OFF!
  • Rip Curl: Pass on the savings
  • Guess: You won’t believe who’s partnered with us
  • Ends Today! 20% Off Friends & Family
  • Get out of debt. Free credit counselling session
  • Hot savings for 5 days only
  • Snow day sale
  • Follow us on Twitter and grab your hot deals.
  • Limited Supply: Limit 2 [product name] per customer
  • Warm up to savings!
  • Complimentary gift wrap free on all your purchases.
  • BLACK FRIDAY SALE / Kendrick Lamar x Reebok Classic CL Luxe Olive / Bedwin x The Heartbreakers x Adidas Originals collection
  • Your choice of amazing items $50 + under
  • [Product name] Promotion week. Save 25%
  • Free product with purchase of [product name]
  • HP: Save big on ink
  • Save big on your marriage anniversary shopping
  • HP: Stop wasting money on ink
  • Rapha: The new Brevet Windblock Jersey
  • Enjoy your birthday gift. Your gift is on us.
  • Winter is coming. We got a sale for you.
  • $2 off for every inch of snow!
  • Cute and adorable fashions for your baby
  • A new product that you would not pass on
  • Last minute deals, special offers, and new [product name]
  • Ends today. Hot deal of the day
  • Sephora: Your beauty issues, solved
  • Sign up to know your hot deals
  • Jersey Mike’s Subs: Lisa, Earn double points today only
  • Pizza Hut: New toppings. New dinner plans.
  • Topshop: New Beyoncé line is just two days away
  • Sephora: Psst! You’ll want to pass this one on…
  • Great gifts for [Dad, Mom, etc]
  • Grand Opening Sale: 25% off all services
  • Guess: 25% off your favorites
  • Sephora: Products the celebs are wearing
  • Jaybird: Last chance to save big this holiday
  • 1-DAY ONLY Doorbusters!
  • HP: New must-haves for your office
  • Top 10 under $10
  • Rapha: Your savings code expires today
  • HP: Solve all your printing problems
  • [Hot, Cold?] Stay indoors and save.
  • Get insider tips on our Facebook Page
  • Hot Savings for 3 Days ONLY!
  • The [your company] holiday catalog is here!
  • Le Mer: 8-minute miracles. Try these products.
  • Hollister: Your favorite jeans are 20% off 🙌
  • IKEA: Deals for a fresh new look
  • Topshop: Minimal and cool, the new collection is here
  • Enjoy this Special Offer at Our New Location
  • Converse: Converse custom prints for spring
  • Don’t miss this! Extra 50% off sale ends tonight!
  • Save with this week’s flyer
  • Online only: 25% off friends and family
  • Seafolly: A new product you won’t pass on
  • Birchbox: Last chance to get in on this hot deal
  • Review your vacation and get 30% off your next booking!
  • Ends Today: Take 20% off your entire order
  • Rapha: As worn in the World Tour
  • Seafolly: Swimsuits of celebrities
  • Here’s a reason to smile: FREE teeth whitening
  • Topshop: Shop now. Save big.
  • Mercedes-Benz: Luxury awaits
  • Pizza Hut: Bob, try our new treat
  • Guess: Last chance to earn $100 to shop
  • Moo: This sale’s too BIG for subject li–
  • Sephora: 3 Days only – 10% off and free shipping
  • Aerie: 50% off a bra that feels good. It’s REAL.
  • La Mer: A little luxury at a great price
  • Dollar Shave Club: Save money. Don’t leave the couch.
  • Black Friday Weekend Banger
  • Guess: Lindsey, check out these hand-picked looks
  • Best Sellers Every [girl, boy, man, woman, dog, etc.] Needs

GUIDE: How To Write A Great Subject Line

As we mentioned above, crafting a catchy subject line is critical to the performance of your email campaign.

While just a few words may seem like a small piece of your overall message, this is the first impression your audience will have before they decide whether to open your email.

If your subject line isn't engaging or appealing enough, there's a chance it could get buried in your reader's inbox.

Let's go over the proven tips on how to craft a subject line that boosts engagement:

What makes a great subject line?

First, let's discuss the fundamentals of creating a great subject line:

  • Spark interest and curiosity
  • A clear and urgent call to action
  • An offer/intriguing discount
  • Personalization (this can be done by sending out different versions of emails to subscribers based on their preferences)
  • Relevance - make sure your subject line covers the current trends and topics within your industry

5 Tips To Crafting a Great Subject Line

Now, let's dive into the specifics of how to create a great subject line for your next campaign:

1. Use a familiar sender name

Although this may seem obvious, it's a piece many marketers miss the ball on.

Your readers want to feel like your email is coming from a human and not a corporation or automated system.

One of the easiest and most effective ways to do this is by changing the sender's name to YOUR name or someone in the company that is well known.

Here's a great example of this from Marketing Examples


Pro Tip

Avoid the "no-reply" sender name at all costs. This makes your email feel unfamiliar, unapproachable, and less personable.

2. Keep your subject short and to the point

If your subject line is too long, it will get cut off, which could impact your reader's chances of opening your email.

The rule of thumb (for both mobile and desktop) is to keep your subject line under 50 characters.

3. Add personal touches to your subject line

If you have access to information about your subscriber (ie. name, location, etc), you can use this to benefit your subject line and catch your readers attention.

It's important not to go overboard here, but adding even the simplest touch such as their name can build trust and rapport.

Here's a great example of a personalized email + offer I received from BarkBox with my dog's name in the subject line:


4. Avoid making any false promises

Your subject line makes a commitment to your reader, so it's important you don't stretch the truth just to simply get more opens and clicks.

In the grand scheme of things, making false promises will end up hurting your open rate as your readers will lose trust in you.

5. Give them a sneak peek of what's inside

Telling your subscriber what is inside helps with open and clicks.

For example, if you're providing your reader with a free guide or e-book, consider making your subject line something along the lines of:

"Your FREE marketing e-book awaits!"


If you want your email campaign to perform well, it all starts with your subject line.

Think about the emails you receive in your inbox and what makes you click vs what gets buried - odds are, the same habits go for your customer.

We hope you enjoyed our guide + list of 241+ best discount offer email subject lines [2021].

Pat Walls,  Founder of Starter Story

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