Don't Forget Email Subject Lines
Last updated: January 4, 2026
These subject lines help remind recipients of important dates or tasks they shouldn't overlook.
Urgent reminder subject lines
Use these for last-minute reminders.
- Best for events happening today
- Use when deadlines are approaching soon
- Ideal for urgent tasks or actions needed
Last chance to join us today! ⏰
Don't forget your appointment later! 🔥
Reminder: Event starts in 1 hour! ⚡
Final reminder for your task today!
Today is the day - don’t miss out!
Friendly reminder subject lines
Suitable for casual or non-urgent reminders.
- Good for weekly tasks or updates
- Use for upcoming events next week
- Best for routine reminders
Just a friendly reminder! 🎉
Hey, don’t forget about your meeting! ✨
A gentle nudge about your task 😊
Reminder: Your event is next week!
Don’t forget the plan we made!
Task-oriented reminder subject lines
Focus on specific tasks or action items to complete.
- Best for project-related notifications
- Use for deadline-driven tasks
- Ideal for team action items
Don’t forget to submit your report! 🔥
Reminder: Complete your survey! ⏰
Last call: Finish your project tasks! ⚡
Please remember to update your status!
Action needed: Don’t forget your assignment!
Calendar-based reminder subject lines
These lines revolve around scheduled dates.
- Best for monthly or yearly events
- Use for recurring appointments
- Ideal for significant date reminders
Save the date for our upcoming event! 🎊
Mark your calendar: Important date ahead!
Don't forget our monthly meeting! 🎉
Remember: Special event is in 2 days!
It's time for your quarterly check-in!
Promotional reminder subject lines
Use these for reminding about limited-time offers.
- Best for sales that close soon
- Use for expiring discounts
- Ideal for promotional events
Last chance! Sale ends soon! 💸
Don’t miss out on this flash sale! ⚡
Ending soon: Your special offer! 🔥
Final call: Grab the exclusive deal!
Hurry! Your discount expires today!
Important notice reminder subject lines
These are for crucial information or updates.
- Good for policy changes
- Use for important announcements
- Ideal for sensitive information
Important update: Don’t forget to review! ⚠️
Notice: Please read this important info.
Remember to check our new policy! 🚨
Critical announcement: Action required!
Don’t forget this key information!
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