Black Friday is one of the biggest trading opportunities of the year, but increasing advertising budgets does not automatically mean capturing more demand.
For retailers, the challenge is knowing when to invest, how much budget to reserve for the busiest days and whether that spending is reaching the right products.
Our analysis of November 2025 Google Shopping performance found that the typical advertiser had already spent 46% of their monthly advertising budget by 14 November, even though only 39% of November's sales had taken place.
That doesn't mean earlier spending was wasted. Shoppers often research and compare products before buying, so earlier activity can still contribute to later sales.
But it raises an important question for Black Friday 2026: are retailers leaving enough budget available for the periods when demand is strongest?
Allocating advertising budgets evenly across November may seem like the right approach, but customer demand rarely spreads evenly throughout the month.
Some shoppers start researching and comparing deals early. Others wait for Black Friday itself, while promotional activity can influence purchasing decisions throughout November.
For 2026, Black Friday falls on Friday 27 November, with Cyber Monday following on Monday 30 November.
The timing is particularly interesting for retailers because it aligns closely with the end-of-month payday period. According to the CIPP's 2025 Payroll Insights Report, the most common monthly pay dates include the last working day of the month, the 28th and the 25th. This overlap could create an additional opportunity for retailers, with shoppers having more spending flexibility during one of the busiest trading periods of the year. Having sufficient advertising budget available to respond to that demand will be particularly important.
Based on our analysis, our suggested November 2026 budget allocation is:
Share of the month's total budget, by period. Bars are scaled against the largest share.
1–15 November
41%
16–22 November
23%
23–26 November
16%
27–30 November Black Friday to Cyber Monday
20%
The final eight days carry 36% of the month's budget, including 20% across Black Friday to Cyber Monday. Source: Shoptimised November 2026 budget planning analysis. Proposed allocations, not actual spending results.
This approach reserves 36% of November's total budget for the final eight days, including 20% specifically for Black Friday through Cyber Monday.
It maintains investment throughout the month while keeping budget available for the busiest trading period.
Any potential budget increases should also be agreed in advance, so teams can respond when demand strengthens rather than trying to secure additional investment during Black Friday weekend.
Not every retail sector experiences the same level of demand around Black Friday and Cyber Monday, so budget planning needs to reflect those differences.
Our proposed November 2026 allocations show how spending strategies could vary across sectors.
Share of the total November advertising budget earmarked for 27–30 November
| Retail sector | Budget allocated to 27–30 Nov | Approach |
|---|---|---|
| Sporting Goods | 23.2% | Strong BFCM emphasis |
| Clothing | 22.5% | Strong BFCM emphasis |
| General Retail | 20.4% | Balanced peak-period increase |
| Home | 17.7% | More evenly distributed |
| Hardware / Industrial | 12.0% | Less concentrated around BFCM |
Source: Shoptimised November 2026 budget planning analysis. Percentages represent proposed allocations from the total November advertising budget, not actual 2026 spending results.
The proposed allocations place greater emphasis on Black Friday weekend for Sporting Goods and Clothing, while Home and Hardware / Industrial follow a more evenly distributed approach.
Applying the same spending plan across every category could mean allocating too much budget to quieter periods or not leaving enough available when demand peaks.
The priority is understanding how demand behaves within your own product catalogue, rather than relying on a single Black Friday budget recommendation.
A campaign might appear to be delivering weaker ROAS when reviewed the morning after Black Friday. Our historical analysis found that only around 62% of eventual conversion revenue was visible the following morning during the Black Friday and Cyber Monday period, meaning a significant proportion of revenue may not yet have been reported.
Reducing budgets based on those early figures could mean pulling back before the full picture is available.
That doesn't mean ignoring poor performance, but retailers should account for conversion reporting delays alongside product performance, margins and wider trading conditions before making significant budget changes.
Black Friday budget planning is not just about deciding how much more to spend on products that already generate sales.
For many retailers, a significant proportion of Google Shopping revenue comes from a relatively small group of products. Others receive limited visibility, attract few clicks or fail to convert through the existing campaign setup.
Increasing budgets without understanding those differences can mean directing more spend towards the same products, while other opportunities remain overlooked.
This is where Feed Optimisation and product-level reporting become particularly important. Strong product titles, relevant attributes, accurate pricing and availability information all help Google understand what is being sold, something that becomes increasingly important as AI-led product discovery and advertising continue to develop.
Retailers also need to consider how much budget they have available to experiment.
Black Friday budgets are often focused on established campaigns and bestselling products, particularly when performance targets are tight. While protecting what already works is important, allocating everything to existing activity leaves little flexibility to test feed improvements, different product groups or new advertising capabilities.
This doesn't mean diverting large amounts of budget away from profitable campaigns. It means recognising that the Google Shopping environment is changing and making space to test where additional value might exist.
Shoptimised's Incremental Sales service is built around creating additional revenue opportunities for products that are not contributing properly through a retailer's existing Google Shopping setup. Rather than disrupting campaigns that already perform well, the focus is on giving overlooked products more opportunity to be seen and generate sales.
During Black Friday, the aim should not simply be to spend more, but to understand where additional investment could help more products contribute to revenue.
Black Friday budget planning is about more than deciding how much to spend. Retailers need to consider when demand is strongest, where additional investment makes commercial sense and whether enough budget is available to respond.
That includes protecting campaigns that already perform well, leaving room to test opportunities across the wider catalogue and accounting for conversion reporting delays before making significant changes.
Ultimately, it's not simply about having a bigger advertising budget. It's about making sure that budget is available for the right products at the right time.
If you'd like to understand where your Google Shopping budget and product catalogue could be missing opportunities, book a demo with the Shoptimised team.
