Budget

How to plan ad budgets around seasonal demand

Shift 60-70% of a seasonal budget into the 4-6 weeks before peak demand, when cost-per-click is lower and customers are still deciding, not just buying.

3 August 2026
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Short answer

How should I plan my ad budget around seasonal demand?

Front-load spend: put roughly 60-70% of a seasonal budget into the 4-6 weeks before your peak period, when competition and cost-per-click are lower and you can capture demand before it becomes a bidding war. Reduce spend by 30-50% during the actual peak week if your category (like retail around major holidays) sees CPCs spike 2-3x, and use the two weeks after peak for a smaller retargeting push to recover abandoned carts and browsers.

Last updated 3 August 2026

Sample seasonal budget allocation over a 10-week period
Phase	Weeks before/after peak	% of total seasonal budget
Early awareness	6-8 weeks before	20%
Consideration ramp-up	3-5 weeks before	35%
Peak period	Peak week ± 1	25%
Post-peak retargeting	1-2 weeks after	15%
Reserve/flex	Held back for adjustment	5%

Do this

The steps, in order.

Step 1
Map your specific peak dates from last year's data, not the calendar
Look at your own website traffic, sales or booking data from the last 1-2 years to find your actual demand curve — it often starts rising 4-6 weeks before the obvious peak date, earlier than most plan for.
Step 2
Shift budget earlier than feels natural
Most competitors wait until the peak week to spend heavily, which drives cost-per-click up 2-3x during that exact week. Spending more in the 4-6 weeks before means paying less to reach people while they're still deciding.
Step 3
Hold back 5-10% as a flexible reserve
Don't allocate 100% of the budget to a fixed schedule in advance. Keep a small reserve to double down on whatever's performing once real data comes in during the season.
Step 4
Prepare creative and landing pages before the season starts
Seasonal creative and offers should be built and tested at least 2-3 weeks before the ramp-up begins — building them during the ramp-up wastes the early, cheaper weeks.
Step 5
Plan the post-peak retargeting spend separately
People who browsed but didn't buy during peak are often still convertible for 1-2 weeks after with a smaller, cheaper retargeting budget — don't let the whole budget end exactly on the peak date.
Step 6
Review actual cost-per-click by week against last year
If your category has predictable seasonality, cost-per-click data from last year's campaigns is a useful guide for exactly when to pull budget back versus push it forward.

Worth knowing

The bits people get wrong.

The instinct to save most of the budget for the peak period itself is usually backwards, because everyone else has the same instinct — competition and cost-per-click both spike sharply during the actual peak week or days, sometimes 2-3x baseline, meaning the same dollar buys far less reach exactly when everyone's fighting for the same customers.

Front-loading spend into the weeks before peak lets you reach people while they're still researching and deciding, at a lower cost, and often builds retargeting audiences you can then re-engage cheaply during the actual peak with a smaller budget rather than fighting for expensive new clicks.

Seasonal patterns are specific to each business, not just the general calendar — a B2B software product's 'season' might be January budget resets or the end of a fiscal quarter, not retail holidays. The planning principle (shift spend earlier, hold a reserve, plan post-peak retargeting) applies regardless of what's driving the seasonality.

It's worth building the plan around your own historical data rather than generic seasonal calendars, since 'last year's website traffic started rising in week X' is a far more reliable signal for your specific customers than an industry-wide assumption about when a season starts.

Questions

Follow-up questions.

How much earlier should I start spending before a seasonal peak?

4-6 weeks before the peak is a reasonable starting point for most categories, but check your own historical traffic or sales data — some categories see demand rise as early as 8 weeks out.

Should I keep the same daily budget through the whole peak week?

Not necessarily — if cost-per-click spikes sharply during the exact peak day or two, some businesses reduce spend slightly then rather than paying inflated prices, and shift more into the days just before and after.

What if I don't have last year's data to plan from?

Use industry benchmarks as a rough starting point (retail: 4-6 weeks before major holidays; B2B: end of quarter/fiscal year) and start collecting your own data this cycle to plan more precisely next time.

Is it worth building special seasonal creative or can I reuse standard ads?

Seasonal, timely creative (mentioning the specific event or deadline) usually outperforms generic ads during a peak period, since it signals relevance and urgency that generic ads don't.

How much should I hold back as a reserve for adjustments?

5-10% of the total seasonal budget is a reasonable reserve to double down on whatever's performing once real season data starts coming in, rather than locking 100% into a plan made in advance.