Shared Budget
01 Definition
Shared Budget meaning: A single Google Ads budget spread across several campaigns instead of one each.
A shared budget in Google Ads is one pool of daily spend that multiple campaigns draw from. The system moves spend to campaigns with more opportunity, so you do not have to set a separate budget for each. It suits advertisers who care about total spend more than per-campaign limits.
Why it matters
How Shared Budget fits the work
Shared budgets simplify management by letting several campaigns pull from one pool, so spend flows to wherever demand is strongest that day.
In context
Three seasonal campaigns pulled from one 300 dollar shared budget, and the best performer used the largest share that day.
Practical note
You give up per-campaign spending control, so one campaign may consume much of the pool. Avoid shared budgets when specific campaigns need guaranteed spend.