To increase a Google Ads budget, open Campaigns, select the pencil icon in the Budget column of the campaign, enter a new average daily budget and save. The harder questions are how much to add, how long to wait before judging it, and when to raise it, and the answer to the last one is as demand for your product starts to rise.
How do Google Ads daily budgets work?
A Google Ads average daily budget is the amount you want a campaign to spend per day, averaged over the month. It works as an average, so single days can land above or below it.
Google says that on a given day a campaign may spend up to twice its average daily budget to take advantage of higher traffic. Across a month, you will not be charged more than 30.4 times the average daily budget.
Say your average daily budget is $50. Some days may reach $100 and others may come in well below $50, and the month's charges will not go above $1,520. If served costs go over those limits, Google says you will never pay more than the spending limits.
What happens when you change a Google Ads budget mid-month?
When you change a Google Ads budget mid-month, the rest of the month's spend will not exceed the new average daily budget multiplied by the days left in the month. What you already spent stays as it is.
On the day you make the change, the daily limit uses the highest budget you set that day. If you move a campaign from $50 to $100 and then back to $60 on the same afternoon, that day's limit is twice $100, or $200.
That is worth knowing if you test a big raise and change your mind. The higher number still sets the ceiling for the rest of that day.
What does limited by budget mean in Google Ads?
Limited by budget means a campaign keeps reaching its average daily budget and could earn more clicks and impressions with more money. Google Ads shows a recommended budget for campaigns that repeatedly hit their budget.
Treat that status as a sign that more clicks are available at your current bids. It does not tell you whether those extra clicks are worth the cost, so check the campaign's ROAS against your break-even ROAS first.
Does raising the budget restart Smart Bidding's learning period?
Raising a Google Ads budget does not appear on Google's list of causes for the Learning status, but Google still asks you to give Smart Bidding time to settle after one. Smart Bidding is Google's group of bid strategies that aim for conversions or conversion value in every auction: Target CPA, Target ROAS, Maximize conversions and Maximize conversion value.
Google shows the Learning status for these reasons:
- A new strategy, meaning one recently created or turned back on
- A setting change on the bid strategy
- A composition change, meaning campaigns, ad groups, keywords or products added or removed
- An ad group target change, mainly in Shopping campaigns
Separately, Google advises allowing 1 to 2 conversion cycles after major changes to bidding or budget before you adjust anything else. A conversion cycle is the time between a click and the conversion.
How long should I wait after a Google Ads budget increase before I judge whether it worked?
Wait at least 1 to 2 conversion cycles. If people usually buy the same day they click, a couple of days is enough. If they take two weeks to request a demo, you need two to four weeks before the numbers mean much.
Google also warns about conversion delay: some conversions reach Google Ads days or even weeks after the click. Recent days can look weaker than they are, so compare periods that have had time to fill in.
How much should you increase a Google Ads budget at a time?
Increase a Google Ads budget in steps you can judge one at a time, and wait 1 to 2 conversion cycles between them. Google's guidance gives a waiting period rather than a percentage.
A step size that works for most accounts is one where you would still recognize the campaign afterward. Doubling a budget overnight makes it hard to tell what the extra money bought. A series of smaller steps shows you where cost per conversion starts to climb.
Also remember the daily ceiling. A campaign at $100 a day can already spend $200 on a strong day, so the room to spend more on busy days exists before you touch the budget.
Which approach to a Google Ads budget increase fits your situation?
The right approach depends on whether you know when demand will rise and how long it will last. Each option below answers a different question.
| Approach | What it answers | What it misses |
|---|---|---|
| Raising the average daily budget | How to buy more of what already sells | When to start and when to stop |
| A campaign total budget with start and end dates | How to spend a fixed amount over a set stretch | Changes mid-flight can make spend uneven |
| A seasonality adjustment | How to warn Smart Bidding about a short spike in conversion rates | Anything longer than a couple of weeks |
| Timing increases to rising demand | When buyers have a reason to act, and who they are | Bid and keyword problems inside the campaign |
What is a campaign total budget in Google Ads?
A campaign total budget is a fixed amount Google Ads aims to spend over a campaign's start and end dates, in place of a daily average. It needs both dates, and it suits a window you can see coming.
Google sets it up this way:
- The minimum length is 3 days and the maximum is 90 days for most campaign types.
- There is no daily spending limit, so Google can spend more on busy days and less on quiet ones.
- You cannot change the budget type after the campaign is created.
- Google warns that changing the end date or raising the budget mid-flight can lead to uneven spend.
When should you use a seasonality adjustment?
A seasonality adjustment tells Smart Bidding to expect a large change in conversion rates for a set period, such as a sale. Google says they work best for events of 1 to 7 days and may work less well beyond 14 days.
Google also says to use them only when you expect a major change in conversion rates, since Smart Bidding already adjusts to ordinary ups and downs. For a build-up that lasts several weeks, a stepped budget increase fits better.
When should you increase your Google Ads budget?
You should increase your Google Ads budget as searches for your product start to climb, so the steps are in place by the time the most buyers are searching. Raising it after results improve puts the extra money in late.
Search demand rises when something builds up in buyers' lives or businesses:
- Hiring rising month over month, so companies search for onboarding and payroll software.
- New business filings climbing for several months, so founders search for accounting software and business bank accounts.
- Mortgage rates easing week after week, so homeowners search for refinancing.
Each of these builds for weeks before searches peak. That gap gives you time to take budget steps and still wait a conversion cycle between them. Verdius spots build-ups like these for you and ranks the windows they open against each other.
How do I know if searches for my product are about to rise before I raise my Google Ads budget?
Watch the build-up behind your buyers' searches, then confirm it in your own accounts. In Search Console, impressions for your category terms climb before clicks and sales catch up. How to tell if demand is rising lists the signals in more detail.
Verdius finds each product's windows with a start and a stop and reads Google Ads, Google Analytics and Search Console without changing anything. See how the windows are found.
How do you bring a Google Ads budget back down?
You bring a Google Ads budget back down in steps once searches for your product level off, the same way you raised it. Keep campaigns on brand terms running at a base level, since people searching your name are ready buyers in any week.
A campaign total budget ends on its own date, which makes the stop automatic. With an average daily budget, set the date you plan to step down when you raise it, and check each step against break-even as you go. Verdius sends an alert when a window closes, which gives you the date to start stepping down.
What software tells you when to increase your Google Ads budget?
Verdius is software that predicts when demand for a product will rise and who to target then. It answers the timing question that the Budget column leaves open.
For each product it gives you:
- Optimal windows to run ads, each with a start and a stop, ranked against each other
- The events behind each window
- The audience to reach, by age, income, location and interests
- Alerts when a window opens and when it closes
Verdius reads Google Ads, Google Analytics and Search Console, along with Meta, TikTok, Reddit, Snapchat, LinkedIn, Microsoft Advertising and ChatGPT Ads. It never edits budgets or bids, so each step stays yours to take. The pricing page shows how far ahead each plan sees.
So how do you increase a Google Ads budget?
Increase a Google Ads budget in the Budget column of the campaign, in steps, with 1 to 2 conversion cycles between each. Expect some days to spend up to twice the daily budget. Start the steps as searches for your product begin to climb, and step back down when they level off.