A Black Friday email signature line puts your sale under every email your team sends, including replies to people who never open your newsletter. In 2026, Black Friday is Friday, November 27 and Cyber Monday is Monday, November 30. Write one short line with the offer and the day it ends, put it under everyone's signature a few days before, and take it off on Tuesday, December 1. Below are 20 sale lines to copy and the steps to run it for a whole team.
Black Friday and Cyber Monday dates for 2026
| Day | Date |
|---|---|
| Thanksgiving (US federal holiday) | Thursday, November 26, 2026 |
| Black Friday | Friday, November 27, 2026 |
| Cyber Monday | Monday, November 30, 2026 |
| First day without the sale line | Tuesday, December 1, 2026 |
Black Friday is the day after Thanksgiving, which the US Office of Personnel Management lists for Thursday, November 26, 2026. Cyber Monday is the Monday after.
What a good sale line says
- The offer, in numbers: "30% off", "2 months free".
- The day it ends, as a weekday and a date: "ends Monday, November 30".
- Where to get it: a short web address or a code.
- One line. A signature sits under every reply, and a second paragraph of offer pushes your name and phone number out of sight.
Black Friday signature lines
Black Friday: 30% off everything, Friday, November 27 only. [yourstore.com]
Our Black Friday sale is on: [offer] until midnight, Friday, November 27. Code [CODE].
Black Friday at [company]: [offer] on [product], November 27. [yourstore.com/sale]
Black Friday early access for customers: [offer] from November 24. [link]
Cyber Monday signature lines
Cyber Monday: [offer] online, Monday, November 30 only. [yourstore.com]
For anyone who missed Black Friday: [offer] with code [CODE] this Cyber Monday, November 30.
Cyber Monday at [company]: [offer] on annual plans until 11:59 PM ET, November 30.
One day, online only: [offer] this Cyber Monday, November 30. [link]
Black Friday to Cyber Monday (one line for the weekend)
One line that runs Friday to Monday, so nobody changes it in between.
Black Friday to Cyber Monday: [offer], November 27 to 30. [yourstore.com]
Our biggest sale of the year: [offer] through Monday, November 30. Code [CODE].
Sale weekend: [offer] from Friday, November 27 to Monday, November 30.
[Offer] all weekend, ends Cyber Monday, November 30. [link]
Lines for services and B2B
For companies that sell to companies, where a sale reads better as an offer to the person you are already writing to.
Black Friday offer for clients: [offer] on projects booked by November 30. Reply to this email to book.
Until Cyber Monday: [offer] on annual plans for new and current customers. [link]
Our office is closed November 26 and 27 for Thanksgiving. The Black Friday offer runs to November 30: [link]
Book a call by November 30 for [offer] on [service]: [booking link]
Last-day lines
For the final day, if the team can change the line once more on Monday morning.
Last day: [offer] ends tonight, Monday, November 30. [link]
Cyber Monday is the last day of our sale. [Offer] with code [CODE] until midnight.
Final hours: [offer] ends at 11:59 PM ET today. [yourstore.com]
Today only, Cyber Monday: [offer]. Tomorrow prices go back to normal.
A text line reads everywhere; a banner needs images on
An image banner is the larger, brighter option, and the one more likely to go missing. Many mail apps hold back pictures in an email until the reader allows them, so a banner can arrive as an empty box. A line of text reads in every mail app, with images on or off.
If you do use an image, give it a fixed width, host it at a public web address, and put the offer in its alt text so a reader with images off still sees it.
How to add the sale line for the whole team
In each person's mail app
Without a signature tool, someone writes the line, sends it round, and asks everyone to paste it under their signature in their mail app. The install guides walk through each one, such as Gmail and Outlook. On Tuesday, the same person asks everyone to delete it again.
With Signatoro
Signatoro is the agentic email signature platform: save your signature once, and your people and every AI agent you connect use the same one. On a Company plan that includes the company footnote (see pricing), the owner writes one footnote that goes under every member's signature and every company AI agent's signature:
- On the Company brand page, turn on the compliance footnote and write the sale line in Footnote text. If the footnote already holds a confidentiality notice or a registered-office line, add the sale line above it on its own line and keep the rest.
- Save. Everyone gets their updated signature by email to paste, and members who connected Zoho Mail get it there without pasting (except Zoho China accounts, which paste).
- A company AI agent that fetches the signature through the MCP server or the API uses the new line on its next email.
The footnote is a plain-text line in small type at the bottom of the signature, so write the web address or the code into the line itself. It is the same for everyone at the company; a line for one person only goes into that person's own mail app.
Take it off on time
A sale line still under your signature in mid-December offers readers a price that has expired. Signatoro does not take the line off by itself on a date, so plan the end before you start:
- Put the end date in the line. "Ends Monday, November 30" stays accurate after the sale, even on the email of someone who has not pasted the new signature yet.
- Add a reminder for the morning of Tuesday, December 1, for the person who set the line.
- Remove the line on Tuesday. The owner deletes it from the footnote (or turns the footnote off, if the sale line was all it held), and everyone gets their signature without it by email, the same way the sale line arrived. Company AI agents that fetch the signature drop it on their next email.
- Check one sent email from a teammate on Tuesday afternoon, to see that the line is gone.
If the company also closes for Christmas, the same footnote can carry a holiday line from December: the holiday email signature templates have examples. For the Thanksgiving days off, see the Thanksgiving out of office messages.
One sale line under everyone's signature
Write the Black Friday line once on Signatoro, send everyone the updated signature, and take it off again on Tuesday.
Frequently asked questions
When is Black Friday 2026?
Friday, November 27, 2026, the day after Thanksgiving (Thursday, November 26).
When is Cyber Monday 2026?
Monday, November 30, 2026.
Should a Black Friday signature be a banner or a line of text?
A line of text reaches every reader, because mail apps that hold back images still show it. A banner is more visible when images load. If you pick a banner, put the offer in its alt text.
When should I take the sale line off my signature?
On the first morning after the sale ends: Tuesday, December 1, 2026, for a sale that runs to Cyber Monday.
Can I add the sale line to only some people's signatures?
On Signatoro the company footnote goes under every member's and every company AI agent's signature. For a line on one person's email only, that person pastes it under their own signature in their mail app.
Sources
Read on November 2, 2026: