Edit your budget for Smart campaigns

  • Set a monthly budget for your ads with the flexibility to change it at any time.
  • Choose a budget based on your advertising goals and the amount you're comfortable spending.

How to edit your budget

At some point, you may want to increase or decrease your budget for Smart campaigns. You can change your average budget or monthly budget at any time and as many times as you like.

  1. Open the Google Ads app for Android.
  2. Tap the  menu at the top, and then tap Account overview.
  3. Find the campaign that you want to edit, and then tap Details.
  4. Scroll down until you see your budget card. Tap Edit
  5. Tap your current daily budget, and then enter the daily budget that you want. 
  6. Tap Save.

How budgets work in Smart campaigns

It's important to choose a budget that you're comfortable with. Google Ads will use that budget to help you get the most high-quality clicks possible for your Smart campaigns.

How your budget is calculated and allocated per month

With Smart campaigns, you set a maximum monthly budget. If you set an average daily budget, we'll multiply it by 30.4, the average number of days in the month to come up with your maximum monthly budget:

Average daily budget × 30.4 = Maximum monthly budget

Your average daily budget is the average amount you could spend each day. The actual amount that your ad spends can vary depending on how popular the ad is each day. But, don't worry – the total amount that you spend in a month won't exceed your maximum monthly budget.

If you receive fewer clicks than you've budgeted for, then you'll only be charged for the clicks you received. For example, if you set a maximum monthly budget of $50, but you receive only $13 of clicks, you'll be charged only $13.

What happens if you change your budget

If you increase your budget in the middle of a billing period, the maximum amount that you'll be charged for that month will be:
Your new average daily budget X the number of days remaining in the month

If you set your new average daily budget to $10 on 11 January, you'll spend a maximum of $210 for the remaining 21 days of January.

Bear in mind

Your maximum monthly budget for February and the rest of the calendar year will be different from your January budget.

Recommended budgets

When you create your Smart campaign, we'll recommend budgets based on the average click volume for your business type and your location. However, you can always specify your own budget.


When you enter your budget for a Smart campaign, the budget slider will show your monthly budget to the nearest round number.
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