Sales email subject lines
"Sales email" means two different things. In B2B, it's a rep emailing a prospect. In ecommerce, it's a promotion or sale announcement to customers. The subject lines that work are very different, so they're split into two lists below.
Subject line generator
Subject lines
- Idea for [Company]
- Quick question, [Name]
- [Name], is [problem] a priority?
- [Result] for [Company]?
- How [peer company] [result]
- [Mutual connection] suggested we talk
- Recap + next steps
- Your quote from [Company]
- Is this still a priority?
- Thought you'd find this useful
- 15 minutes next week?
- Before your [tool] renewal
- Should I close your file?
- Pricing for [Company]
- Proposal: [project]
- Can we help with [goal]?
- [Company] + [Your company]
- Your free trial ends [date]
- One idea for your [team]
- A better way to [task]
- 24 hours only: [discount]% off
- Our biggest sale of the year starts now
- [Discount]% off everything – ends [day]
- Last chance: sale ends tonight
- Early access for you, [Name]
- Your cart misses you
- Still thinking it over?
- Back in stock: [product]
- Just for you: [discount]% off
- Free shipping ends at midnight
- New arrivals you'll love
- Flash sale: [time] left
- Members-only: [offer]
- You left something behind
- A gift for you inside
- Weekend deal: [offer]
- Black Friday starts now
- Cyber Monday: [discount]% off
- Treat yourself to [product]
- Our bestsellers are back
- Thanks for being a customer: [offer]
- The [season] sale is here
- Ending soon: [offer]
- Your exclusive code
- Price drop on [product]
- Final hours to save
- Buy one, get one free
- Holiday gifts under $[price]
- [Product] is almost gone
- Don't miss out, [Name]
B2B vs promo subject lines
B2B prospecting subjects should look personal and quiet: short, specific, no exclamation marks. Promo subjects can be louder because the customer already knows your brand, but urgency only works when it's real. Don't say "last chance" if the sale runs for another week.
For full emails
Frequently asked questions
What is a good subject line for a sales email?
For B2B, short and personal: "Idea for [Company]" or "Quick question, [Name]". For a promotion, lead with the offer and the deadline: "25% off ends tonight".
Do numbers help sales subject lines?
Often, yes. Specific numbers ("Cut reporting time by 40%") are more believable than vague claims.