How to Decide Where Your Extra Holiday Budget Should Go
Having extra budget might sound like a good problem to have, but deciding where to spend it isn’t always straightforward, especially when there are business goals to hit and only so many shopping days left.
Whether that money comes from existing reserves, additional funding, or another part of the Q4 budget, here’s how we’d decide where to invest it.
1. Decide Whether the Money Is Better Spent Now or Later
Before deciding where to put more money, there’s another question worth asking: is now even the best time to spend it?
During Q4, the biggest shopping periods are concentrated into just a few days. Putting more budget behind an early November promotion might generate additional sales, but it could also mean having less available for Black Friday, Cyber Monday, or December. Once those shopping days pass, there’s no getting them back until next year. That makes timing just as important as how much you spend.
How to Do It
To determine the best time to increase spend, look at last year’s performance by promotional day (not calendar date!). When did demand peak? Which days delivered the strongest returns? Then compare those patterns with this year’s promotional calendar. Are discounts deeper? Are different products featured? Are promotions starting earlier? This can help predict where this year’s peaks are likely to land.
2. Compare What Each Investment Actually Costs
Once timing is decided, the next decision is where to invest. (Spoiler alert: the answer isn’t always the channel with the highest reported ROAS.)
How to Do It
Start by comparing what each opportunity actually costs, not just the initial investment. Paid media may include additional agency or platform fees. Influencer marketing can involve creator fees, usage rights, and paid amplification. Marketplaces like TikTok Shop and Amazon often add marketplace fees, creator commissions, and agency fees on top of ad spend. Factoring in all of these costs lets you compare channels fairly. Leave them out, and a channel might appear to deliver better returns simply because all of its expenses haven’t been included.
WITHINsight: One of our retail clients had additional holiday budget available, and we were weighing two options: invest more in existing performance media campaigns or shift that money into TikTok Shop. Before making a recommendation, we accounted for TikTok Shop’s marketplace fees, creator commissions, and agency fees to understand what each option would actually cost.
3. Evaluate Potential Returns
Knowing what each investment costs is only half the equation. The other half is how much additional revenue it could drive, and whether that revenue supports the business’s broader goals.
Projecting that revenue gets much harder during Q4 and Cyber Week. Deeper discounts may increase conversion rates but reduce how much profit the brand makes on each sale. Higher competition can drive up advertising costs, meaning the same budget may reach fewer shoppers. And demand can shift significantly between Black Friday and Cyber Monday. That’s why projections need to account for more than recent campaign performance.
How to Do It
Build your projections around two questions:
- What will the additional spend actually generate? Look at incremental revenue from previous holiday periods or similar promotions, then factor in what’s expected from this year’s offers and shopping demand,
- Does that revenue support the business’s priorities? Consider the company’s larger goals: whether that’s growing DTC sales, acquiring new customers, or improving profitability. Moving money into one channel might help hit one target while putting another at risk.
WITHINsight: When we ran the numbers for our retail client, TikTok Shop was projected to generate a stronger return on the additional investment, even after accounting for its fees and commissions. But, those sales would count toward the brand’s TikTok Shop target, not its larger DTC website revenue goal.
4. Make Sure There’s Actually Room to Scale
Even when a channel has strong projected returns, increasing its budget doesn’t guarantee more sales. There needs to be enough demand, inventory, and capacity to support the additional investment. During Cyber Week, discovering those limits too late could mean missing one of the year’s biggest sales opportunities.
How to Do It
Here’s what we check before increasing spend:
- For paid search: Check whether campaigns are missing eligible searches because they’ve reached their budget limits. If ads are already appearing for most eligible searches, a bigger budget alone may not generate many more sales.
- For paid social: Review reach, ad frequency, and how previous budget increases affected sales and acquisition costs. If frequency is climbing without much growth in reach, campaigns may be showing ads to the same people more often rather than reaching new customers. In that case, broader audiences or new creative may be needed before increasing spend.
- For marketplaces like TikTok Shop or Amazon: Check whether there’s enough inventory to support more orders, especially for top-selling products. For TikTok Shop, also consider whether there’s enough active creator content to put additional budget behind.
WITHINsight: Scalability was the deciding factor for our retail client. TikTok Shop had the stronger projected return, but we couldn’t confidently determine how much more the channel could grow. And funding that increase would mean reducing investment elsewhere. Ultimately, we decided to keep the clients original allocation rather than risk moving budget into an opportunity that might not be able to support it.
5. Be Strategic About How Much Additional Budget You Release
Once an opportunity has been evaluated for cost, potential returns, and room to grow, the final decision is how much additional budget to commit.
During Cyber Week, there’s a balance to strike. Waiting days for complete performance data could mean missing a short-lived surge in demand. But spending too aggressively could leave less flexibility for Cyber Monday or December if results don’t meet expectations.
How to Do It
Rather than releasing all the extra budget at once, consider doing it in stages. Base each increase on expected demand and how much more spending the channel can realistically support. As the promotion unfolds, monitor sales, conversion rates, and advertising costs. If sales are growing enough to justify the additional investment, keep scaling. If not, hold off and consider putting the remaining budget elsewhere.
Just keep in mind that the full incremental impact may take time to show up in reporting, so early results won’t always tell the whole story.
WITHINsight: We’ve seen how differently these decisions can play out during Cyber Week. For one major footwear retailer, strong incremental returns gave us room to increase spending, ultimately going 42% above forecast on Meta and 26% above forecast on search while staying above our agreed efficiency floor. For another retail client, deep holiday discounts were cutting into margins, so we made the call to spend 15–20% less than planned rather than chase sales that wouldn’t be profitable.
Make Every Additional Dollar Count
Having more budget available doesn’t mean it all needs to be spent. Sometimes the right move is to scale what’s working. Sometimes it’s shifting money elsewhere. And sometimes it’s deciding that the opportunity isn’t worth the investment. What matters is knowing where that next dollar can do the most for the business.
Not sure where your next media dollar should go? WITHIN brings media strategy and incrementality measurement together to help brands identify where additional investment can make the biggest difference. Let’s Talk