Google Ads holiday bidding and budgeting: what demand led budgeting means
Google's Ads Decoded episode explores holiday bidding and budgeting, rather than announcing an October feature launch. Demand led budgeting leaves budget and target decisions with advertisers. Campaign total budgets cap overall charges, but not daily spend.
- Google's Ads Decoded episode covers demand led budgeting, promotion mode and bidding myths, rather than announcing a single new launch.
- The associated bidding update rolled out globally from 17 to 27 August 2026 for eligible budget limited campaigns.
- Google does not automatically change advertisers' budgets or targets under demand led budgeting.
- Campaign total budgets cap charges across the campaign period but have no daily spending limit.
- Promotion mode is documented in Performance Max with travel goals setup; Google warns that rapidly increasing spend during a promotion can affect ROAS.
Personal Take, John IliopoulosA higher holiday budget can expose a bidding target that only looked sensible while spend was constrained. That is the part of Google's demand led budgeting discussion worth taking seriously. Giving a campaign more room can help capture valuable demand, but if the existing ROAS target leaves too little margin after the discount, more orders could make the problem bigger.
Google is not automatically raising budgets or changing targets here, and a higher daily budget does not guarantee it will all be spent. I like the idea of giving bidding more room when the business can afford the return it is asking for. But is that target still sensible once the promotion has taken a chunk out of the margin? I'd work back from what is left after the offer rather than carry over a target from a full price trading period. If that means changing a portfolio target or shared budget, the decision needs to cover all the campaigns it affects, not just the one driving the discussion.
Campaign total budgets deserve particular attention when cash is tight. Capping charges across the promotion period is useful, but there is no daily spending limit. Being comfortable spending £10,000 over a promotion is not necessarily the same as being comfortable with that spend arriving much earlier than expected. These budgets are only available when creating a new campaign, so this is a planning decision rather than a budget type you can switch an existing campaign into. Google's warning that Promotion mode can rapidly increase spend and affect ROAS is worth taking seriously too. Faster spending needs to earn its place through extra sales, not just a quicker run through the budget.
This is a podcast announcement, not a reason to rebuild the account around supposedly new controls. For me, it is a useful prompt to revisit the holiday spending plan and check whether the targets still make commercial sense. Then follow any extra spend through analytics tools, allowing for conversion lag and checking the margin left after the offer and media cost. A strong average ROAS on the earlier spend is encouraging. It does not tell me whether the next £1,000 is worth spending.
Questions people ask
How does Google Ads demand led budgeting work?
Google describes demand led budgeting as allowing higher daily budgets while setting bidding targets that reflect business goals. The associated update applies to eligible budget limited campaigns using Target CPA or Target ROAS, and Target CPC for Demand Gen. Covered campaign types include Search, Shopping, Performance Max, Demand Gen and Travel. Google does not automatically change budgets or targets, and spending the full daily budget is not guaranteed.
Does a Google Ads campaign total budget limit daily spend?
No. A campaign total budget caps charges across the campaign period but does not impose a daily spending limit. It is available only when creating a new campaign, and the budget type cannot subsequently be switched. The campaign end date can be extended.
Where can I enable Google Ads promotion mode?
When creating a Performance Max campaign with travel goals, Google documents selecting the budget type in the Budget step, optionally activating Promotion mode, then choosing promotion start and end dates before reviewing and publishing the campaign. This is a campaign creation control, not an account wide switch. Google Ads Editor 2.12 documentation also confirms that campaign total budgets for Search, Shopping and Performance Max can be paired with Promotion Mode. That does not establish a universal web interface setup path. Google warns that rapidly increasing spend during a promotion can affect ROAS.
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I’m John Iliopoulos, a PPC and growth marketer with over 10 years in the industry. PPC Supreme is where I share my take on what’s changing, experiments I’m running, things that genuinely work and the lessons behind the results.