When a Christmas Google Ads campaign goes wrong, it’s rarely down to the keywords. More often it was put together in a rush in late November: offers written the night before, landing pages that aren’t ready, conversion tracking nobody has checked since the spring, and a bid strategy changed the week the busiest period starts.
The fix is to work backwards from your key dates. If you’re reading this in the autumn, there’s still time to do that properly. The later you start, the more you should focus on the essentials below and the less on brand new experiments.
Start with your dates, not your ads
Before touching the account, write down the dates that matter to your business this season. For 2026, those might include:
- Black Friday on 27 November and Cyber Monday on 30 November
- your last order dates for delivery before Christmas (check your couriers’ published cut-offs)
- any Christmas party, gift voucher or booking deadlines
- the days you’ll be closed over Christmas and New Year
- when your January sale or quieter period starts
Every other decision (when new ads go live, when budgets change, when an offer ends) hangs off these dates. It also makes it much easier to brief anyone helping you.
September and October: check the foundations
Conversion tracking
Smart Bidding strategies such as target CPA and target ROAS set bids using your conversion data. If tracking is double counting, missing phone calls or recording the wrong thing, your bidding will be optimising towards the wrong result at the busiest time of year. Check it now, while mistakes are cheap. Our post on conversion tracking mistakes that skew your data covers the common problems.
Last year’s numbers
If you ran Google Ads last Christmas, look at the same weeks: which campaigns and products sold, what happened to cost per click and conversion rate as December went on, and when enquiries tailed off. How much competition changes varies a lot by sector, so your own account history is a far better guide than any general figure.
Any big changes
If you’re planning a new campaign type, a new bid strategy or a restructure, do it early. Google says a Smart Bidding strategy can take up to around 50 conversions or 3 conversion cycles to calibrate after a change. Changing strategy the week before your peak means it’s still learning when it matters most.
This matters most for retailers. Our London home appliances retailer case study is a good example of how long proper improvement takes: the account was rebuilt from the ground up and then refined month after month, and twelve months on, online sales had doubled year on year. Work like that is much better started before the busy season than in the middle of it.
Late October to mid November: copy, offers and pages
Seasonal ad copy
Write your Christmas headlines and descriptions early. Most ads are reviewed within one working day, but some take longer, and you don’t want your Black Friday ads sitting under review on the day. Responsive search ads can use a countdown customiser to show how long is left on an offer or before a delivery cut-off, which then stops showing automatically when the date passes.
Promotions with proper dates
Promotion assets let you show a discount, a promo code or a minimum-spend offer under your ad, with a bold occasion label. Google sets a window for each occasion: Black Friday and Cyber Monday promotions can run from 15 October to 15 December, Christmas from 1 November to 15 January, and Boxing Day from 15 December to 15 January. Set your own start and end dates inside those windows so offers switch on and off by themselves. Our guide to Google Ads assets covers the other asset types worth updating for the season.
Landing pages
If an ad promises a Christmas offer or a gift guide, it needs to land on a page about exactly that, with delivery dates and stock information that’s correct. Build and check these pages before the ads go live, not after.
Late November to Christmas: budgets and monitoring
Budgets
Decide your seasonal budget in advance rather than reacting week to week. It helps to know how Google spends it: on a given day a campaign can spend up to twice its average daily budget, but over a month you won’t be charged more than 30.4 times the daily figure. If you raise budgets for a short push, plan when they come back down. Our post on how much to budget for Google Ads explains how to work out a sensible figure.
Seasonality adjustments: for short events only
Seasonality adjustments are often misunderstood. They let you tell Smart Bidding you expect a big, temporary change in conversion rate, so it can bid accordingly. Google’s guidance is clear that they work best for short events of 1 to 7 days and may not work as well for periods longer than 14 days. Google also says to use them only if you expect major changes, because Smart Bidding already manages seasonal events.
So a seasonality adjustment makes sense for, say, a three-day Black Friday sale where you expect conversion rates to jump well above normal. It doesn’t make sense to apply one to the whole of December. They’re available on Search, Shopping and Display campaigns using target CPA or target ROAS, and on Performance Max.
Delivery cut-offs and changing messages
As each cut-off date passes, your message needs to change: from “order by” to “gift vouchers available” or “collect in store”, for example. Put these changes in the diary alongside your key dates so nobody’s rewriting ads on Christmas Eve.
It isn’t only retailers
Search behaviour shifts in many sectors around Christmas, just not always in the same direction. Trades may get enquiries from people wanting work finished before family arrive. Restaurants, venues and events businesses take party bookings. B2B firms often go quiet once decision makers are away, and it can make more sense to lower budgets over that period than to push harder. The planning is the same: know your dates and what normally happens in your account, then plan around it.
Don’t forget the things outside Google Ads
Set special hours on your Google Business Profile for bank holidays and any days you’re closing. Google lets you set special hours for closures of up to six days in a row; for seven days or more, you mark the business as temporarily closed instead. Out-of-date holiday hours are an easy way to lose enquiries, and one of the quickest things to fix. Make sure your website shows the same delivery dates and opening hours as your ads.
Where to start if you’re short on time
If it’s already November, focus on three things: check your conversion tracking, get your seasonal copy and promotions in with proper dates, and don’t make big bid strategy changes right before your busiest days. Anything more ambitious can wait until the new year.
Want help planning your Christmas campaigns? Get in touch and we’ll work through your key dates, offers and budget with you, whether you need a one-off check or ongoing Google Ads management.
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