- Your cutoff date is the carrier's date minus however long your warehouse takes to get a box out the door. Get the real number from your 3PL, not your own website copy.
- A shipping deadline is news, and in my subject line data across 7 brands, news beats brand voice.
- Send cutoff emails to engaged people first, and leave out anyone who already finished their gift shopping with you.
- After the cutoff, stop selling shipping. Sell gift cards and anything else that still gets there in time.
What are the 2026 holiday shipping deadlines?
Here's what USPS recommends for delivery by December 25 inside the contiguous US:
- USPS Ground Advantage: Thursday, Dec 17
- First-Class Mail: Thursday, Dec 17
- Priority Mail: Friday, Dec 18
- Priority Mail Express: Saturday, Dec 19
USPS calls these recommended dates, not guarantees. For Alaska, Hawaii, Puerto Rico and US territories, USPS lists the same dates for First-Class, Priority and Priority Express, but Ground Advantage to those places has a 10-day or more service expectation, so those boxes need to go out much earlier.
Treat these dates as a baseline to plan around early, not as your deadline. Your own cutoff should land ahead of them, and it's worth setting now, before December gets busy.
FedEx's 2026 holiday sheet is built around delivery by December 24, not the 25th, and it says the dates are subject to change. UPS publishes its own schedule too. Open the page for the carrier you actually use and build from that, not from a blog post (including this one).
One more date worth knowing. USPS notes that Hanukkah runs December 4 to 12 this year. If your list gifts for Hanukkah, your first deadline comes a lot earlier than Christmas.
How do you pick your own cutoff date?
Start by talking to your 3PL, or whoever handles your shipping and handling. You want the actual cutoff, not the one on your website: when is the very last order that gets picked, packed and out the door in time? December answers are different from July answers, so ask about December specifically.
Then do the math. Start with the carrier date for the service most of your orders ship on and back out your handling time. If your 3PL really ships same day, one day of buffer is fine. If orders tend to sit for 48 hours in December, take two or three.
Say you ship Ground Advantage and your warehouse needs two business days. USPS says Thursday, Dec 17, so your order cutoff is Tuesday, Dec 15. That date goes in the email, the site banner and the cart. Same date everywhere.
If you offer upgraded shipping, you get a second deadline. Priority Mail Express runs to Dec 19 at USPS, minus your handling time. "Last day for standard" and "last day for express" are two real deadlines, which means two honest reasons to email.
When should you send a holiday shipping cutoff email?
Here's the sequence I'd start with:
- Heads-up, 5 to 7 days before your cutoff. "Order by Dec 15 for Christmas delivery." Put the date in the subject line. Link to your gift sets or bestsellers.
- Cutoff day. "Last day to order for Christmas delivery." Short email, one CTA destination. If you offer express, mention it as the backup.
- Express cutoff (only if you offer it). Same idea, later date, higher shipping cost. Be upfront about the price.
- After the cutoff. The gift card email. More on that below.
That's three or four sends over about a week, and it sits inside a bigger December rhythm. I run November and December pretty similarly, with about 25% more email in November because December carries its own urgency. Early in each month is softer, gifting and heads-up messaging, often a pre-Black Friday or pre-Christmas campaign with a special offer. Then the event itself: Thanksgiving through Cyber Monday in November, and Christmas, Christmas Eve, Boxing Day and New Year's in December. The cutoff sequence is the hinge between the two halves of December.
A normal cadence for most brands is about every other day, and back-to-back sends are fine around a real deadline. If you're worried about unsubscribes: across 4 consumable brands, 3 of the 4 saw no rise in unsubscribes when they sent more.
It's also worth adding temporary cutoff lines to your abandoned cart and abandoned checkout emails in December: "order by Dec 15 and it arrives in time." I'd love to do this for every brand, and the honest caveat is that most brands aren't far enough ahead to pull it off. If you're prepared, do it. If December is already on fire, skip it and nail the campaigns.
For subject lines, keep them under 50 characters and lead with the date. I'd pick "Order by Dec 15 for Christmas" over "Ready for the holidays?" without thinking twice, and the data points the same way: across 7 brands and 2,821 campaigns, news beat brand voice and vague questions were the worst-performing pattern. Judge the winner by clicks, not opens.
Plan these on your email campaign calendar now, before BFCM eats your December. If you haven't mapped the rest of the season, the ecommerce holiday email calendar shows where the cutoff fits.
Who should get each shipping deadline email?
Start with engaged people: anyone who clicked or bought in the last 60 to 90 days. That's the default campaign audience I'd use for most sends, and it matters more in December when inboxes are packed. One fitness tech brand sent to an engaged segment of 7,145 people and earned $0.19 per person. A full-list blast to 49,475 people earned $0.04.
That window does double duty in December. For replenishable products, I also like emailing customers who haven't ordered in the past 60 days, to pull lapsed buyers back into an educational cycle while they have a real reason to come back.
Then widen for the cutoff day itself. It's one of the few moments in December where a bigger audience has a real reason to act. The BFCM email strategy post lays out the tiers I'd reuse here.
Who to leave out:
- People who already bought gifts from you this season. If their recent order shipped to a different address or had a gift note, they're probably done. Don't nag them about a deadline they already beat.
- Anyone who ordered in the last few days. Their box is on the way. A "last chance" email reads like you weren't paying attention.
- Far-away addresses, if you ship there. If a real share of your orders go to Alaska or Hawaii by Ground Advantage, give those people their own, earlier cutoff email using Klaviyo's location data.
If your segments are still "everyone" and "everyone minus unsubscribes," fix that first. Email segmentation for ecommerce covers the five segments I'd build before anything else.
What do you send after the shipping cutoff?
The cutoff isn't the end of December sales. It's the end of shipping as the pitch. Here's what I'd offer instead:
- Gift cards. They arrive by email, instantly. Lead with that. "Still need a gift? This one shows up in their inbox."
- A printable gift note. Let late shoppers order now and print a "your gift is on the way" card to hand over on the day. Be clear the product arrives after Christmas.
- Local pickup, if you have it. If you have a shop or pickup point, this is its moment. Say exactly when and where.
Keep it honest. "It won't make it by Christmas, but here's what will" works better than pretending a box will arrive when it won't. A missed delivery turns into a support ticket and a lost second order.
Also update everything that still says "order in time." Site banner, cart messages, and any temporary cutoff lines you added to abandoned cart and checkout emails. Click every link in the after-cutoff email before you send it, especially the gift card link.
How do you keep the urgency honest?
The deadline is real, so you don't need fake countdowns. A few rules I'd hold to:
- Don't send "last chance" after the last chance.
- Don't announce an "extended" deadline unless your carrier and warehouse actually allow it.
- If a carrier changes its dates (FedEx says its dates can change), update your emails and banner the same day.
- Don't stack a discount on the cutoff just because. The offer is a conversion layer, not always the main idea. Here, the date is the main idea.
The benchmarks behind how I judge December sends are in the CPG email marketing benchmarks post.
Where these numbers come from
The unsubscribe finding comes from pooled data across 4 consumable brands (2,897 campaigns, $17.7M in email revenue). The subject line finding comes from 7 brands and 2,821 campaigns. Both are small samples, so treat them as directional. The engaged-versus-full-list numbers are from one fitness tech brand. Carrier dates are from USPS and FedEx's own 2026 holiday pages.
FAQ
When should I send the last day to order for Christmas email?
Send it on your cutoff day, in the morning, with a heads-up 5 to 7 days earlier. Your cutoff is the carrier's recommended date minus your handling time. For USPS Ground Advantage in 2026, that's a day or two before December 17.
Should I put a discount in my Christmas shipping deadline email?
You don't have to. The deadline does the work. If you're already running an offer, mention it, but keep the date as the headline.
What if I use UPS or FedEx instead of USPS?
Use their published holiday dates, not USPS's. FedEx's 2026 sheet targets delivery by December 24 and notes its dates can change, so check it again in early December.
Should I send the cutoff email by SMS too?
Yes. Schedule at least one text on the cutoff day or the day before, to your engaged SMS subscribers. If you have credits to spare, send one a week or two ahead so people see it coming, then tighten the cadence as the date gets close. I run SMS inside Klaviyo so it sits next to email in the same reports.
What about orders that come in after the cutoff?
Take them, but be clear about the delivery date at checkout and in the confirmation. Point late shoppers to gift cards first.
Founder of Bardown Digital, a Chicago-based Klaviyo email and retention agency for Shopify brands. He's worked with brands doing $500K to $100M a year, with $100M+ in email-attributed revenue across them.