New Year Email Marketing: The Window Most Brands Leave Empty

TL;DR. Between 26 December and the first week of January sits the most poorly exploited period in the ecommerce calendar. Traffic is high, inboxes are empty because every brand has stopped, and the audience is spending gift-card balances. January then has two jobs: positioning products that answer an intent to change, and repairing what Q4 cost, list hygiene and a sunset flow across everything November recruited that never reopened.

Most editorial plans stop on 24 December and resume in mid-January. It is rarely a reasoned decision: it comes from the team being on holiday, not from performance analysis.

The numbers point the other way.

The week of 26 to 31 December

Why it works

Three factors combine, and it is their conjunction that makes the period interesting.

The competition has vanished. Your competitors stopped sending on the 23rd. A brand alone in an empty inbox gets attention that fifteen brands in a full one would never have granted it. It is the exact inverse of 27 November.

The audience has money to spend. Gift cards, vouchers, cash gifts. This money has a particular quality: it is perceived as sitting outside the normal budget, which lowers price sensitivity.

Available time is high. Holidays, travel, idleness. Open rates that week often run above the annual average.

What to send

Using the gift card. If you sold cards in December's phase three, you know exactly who holds one. That is a segment with near-certain purchase intent, which only needs reminding what its balance can buy.

End-of-year clearance. Whatever did not move over the holidays, now free of the deliver-before-the-25th constraint. The logistics argument disappears and the price argument becomes acceptable again.

New Year preparation. Depending on your sector: party wear, food and drink, last-minute gifts for people seen after the holidays.

Two to three sends across the week, to 90-day engaged, excluding anyone who bought in the last seven days.

Gift cards received

A gift card sold in December is not banked revenue: it is a commercial debt someone will come to redeem, or will not. The non-redemption rate is far from negligible, and every unspent balance is a missed chance to create a customer.

Two distinct populations, calling for two treatments.

The buyer is in your list. They know the brand and they have paid. Nothing more is needed from them, unless you sell non-personalised cards they might have kept for themselves.

The recipient is the most interesting contact of your entire Q4. They are probably not in your list. They discover the brand through an implicit recommendation : someone who knows them thought of you for them. And they hold a budget they perceive as outside their own finances.

If your platform captures the recipient's email when the card is delivered, that is a recruitment source of far higher quality than a pop-up. Their sequence should not be the standard welcome flow: they did not subscribe to your newsletter, they received a gift. The first message states the balance and its expiry; everything else comes after.

January: position, without forcing

The change angle, used with judgement

New Year resolutions work in a limited set of sectors: health, fitness, organisation, learning, home. Elsewhere the angle has become a cliché that no longer lands.

The test before committing: does your product genuinely answer an intent to change, or are you leaning on the fact that January is when people talk about it? If it is the second, the email reads as opportunistic.

For the sectors concerned, January is one of the best months of the year, with purchase intent that does not depend on price. It is also when subscriptions and long-term commitments sell best.

January sales

Sales periods vary by market, and in some countries they are set by regulation rather than by retailers. Confirm your dates against the official source before locking a plan.

Two observations about the period, wherever you sell.

Sales arrive six weeks after Black Friday, on a list that has already absorbed a lot. The temptation to reproduce November's setup is strong, and it is a mistake: send volume should sit at the low end of the healthy zone, two to three campaigns a week, with the per-campaign unsubscribe rate watched closely, above 0.5% on average, pressure or targeting need revisiting.

The priority segment is not the general list but contacts who clicked in November without buying. They demonstrated intent and resisted the discount; six weeks later, with different stock, the objection may have changed.

The repair work

This is January's most important function, and the least visible in a revenue report.

Measuring what Q4 cost

Three things to record while the data is fresh, detailed in the Q4 2026 promotional calendar:

• revenue per send, campaign by campaign, which tells you which campaigns actually earned;
• the unsubscribe curve, day by day across November and December;
• the 60-day behaviour of contacts recruited during the event.

That last point is worth dwelling on. A contact acquired on 40% off is not worth the same as one acquired in September: their later average order value is lower, and so is their repeat rate. Measuring the gap in your own data determines what you can reasonably spend to recruit the following Q4. The calculation method is in customer lifetime value in email marketing.

The sunset flow

Everything Q4 recruited that never reopened should leave the list in the second half of January.

This is the decision brands postpone most, because removing contacts feels like destroying an asset. It is the reverse: a list inflated with inert contacts drags down the average engagement rate, therefore inbox placement, therefore the revenue of those who still read.

The full mechanic is in the Klaviyo sunset flow, and the preliminary clean-up in email list hygiene.

Back to normal cadence

Two to three campaigns a week to 90-day engaged, from the first week of January. That is the low end of what we consider healthy, 2 to 5 a week to the engaged base, not a stop: January reduces pressure, it does not switch the channel off. Brands that extend December's pressure through to the sales arrive in February with an exhausted list and deliverability metrics degraded for the whole first quarter.

Tracking this reset relies on lifecycle email marketing KPIs.

What not to do in January

Launching a commercial push on 2 January. The list is coming out of six weeks of solicitation. A week of silence at the start of the year costs little and lets the sales campaigns be read.

Reproducing the Black Friday setup for the sales. Six campaigns a week in January on a tired list produces the unsubscribe spike November had not yet triggered.

Postponing the sunset flow. The easiest task to defer, because it earns nothing short term and feels like losing contacts. Pushed to March, it leaves the entire first quarter running on a degraded list.

Cleaning before measuring. The record of what Q4 cost must come before the deletion, or you lose the data that would have told you what to spend on recruitment next year.

What January sets up for the year

Two pieces of work the quiet period makes possible, with no other window before summer.

Rebuilding the flows. Welcome, abandonment, post-purchase, win-back. You have twelve months of fresh data, including a peak that stressed the setup and exposed its weaknesses. See the Klaviyo welcome flow and the win-back flow.

Reviewing segmentation. Segments built for Q4 were designed for a peak. The ones you need the rest of the year are different, resting more on customer value than on recent engagement : see RFM customer segmentation.

FAQ

Should we send emails between Christmas and New Year?

Yes. High traffic, collapsed inbox competition, an audience spending gift-card balances.

What should we do with contacts acquired during Q4?

Treat them separately, and sunset those who never reopened, from the second half of January.

Does the New Year resolutions angle still work?

In some sectors only: health, fitness, organisation, learning, home.

What sending frequency in January?

Two to three campaigns a week to 90-day engaged. January repairs, it does not switch off.

When do January sales start?

It varies by market and sometimes by regulation. Confirm against the official source before locking a plan.

In short

The week of 26 to 31 December is nearly free revenue, and January decides the quality of your list for the eleven months that follow. Both get prepared in November, while the team is still there.

If you want a review of how you exit Q4, we run Q4 readiness audits.

Review your email and CRM stack with Deliver