NetMoneyLab ยท Oct 20, 2026
Bottom line: a daily budget is not a hard daily cap. On Google Ads one day can cost up to 2 times your budget and the month is capped at 30.4 times; on Meta one day can run up to 25% over.
According to Google Ads Help, the average daily budget is the amount you are comfortable spending per day, on average, for each campaign, and you can edit it at any time.
Meta's developer documentation defines the daily budget as the average amount you are willing to spend on an ad set or campaign each day.
Google lets a single day swing a lot (up to double) but closes the month at a clear ceiling. Meta limits daily swings to 25%, and with a lifetime budget you fix the total from the start.
Google Ads supports a shared budget across campaigns.
If you use more than one Google channel, also read how channel prioritization and budget caps work.
Read the full article