How to Change Daily Budget on Facebook Ad

Need to adjust what you're spending on a Facebook campaign? It’s a common task, and thankfully, a simple one. But how you change your daily budget can have a big impact on your campaign's performance. This guide will walk you through the exact steps to change your budget and provide key strategies on when and why to make those adjustments for better results.

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Daily vs. Lifetime Budgets: A Quick Refresher

Before diving into the "how," it's important to understand the two main ways Facebook budgets your ad spend. The option you choose determines how you'll manage your spend later on.

• Daily Budget: This is the average amount you're willing to spend on an ad set or campaign each day. Facebook’s delivery system will aim to get you the most results for this amount and may sometimes spend slightly more or less than your exact daily budget on any given day, but it will average out over time. It’s the most common and flexible option, perfect for ongoing or "evergreen" campaigns.
• Lifetime Budget: With a lifetime budget, you tell Facebook the total amount you are willing to spend over the entire run of the campaign or ad set. Facebook's algorithm will then automatically pace your spending across that time, spending more on days when it predicts better opportunities for results. This is best for campaigns with a fixed end date and a strict total budget, like a short-term sale or event promotion.

This article will focus on changing Daily Budgets, as it's the most frequent adjustment marketers make.

When Should You Change Your Facebook Ad Budget?

Changing your budget isn’t something you should do randomly. Every adjustment has the potential to influence the algorithm. Successful advertisers change their budgets with clear goals in mind. Here are the most common reasons to increase or decrease your daily ad spend.

1. To Scale a Winning Campaign

This is the best reason to increase your budget. You’ve found an ad set that is performing exceptionally well - your cost per acquisition (CPA) is low, your return on ad spend (ROAS) is high, and your metrics are telling you that you have a winner.

Example: You are running an e-commerce campaign and your goal is to acquire customers for under $25 each. One of your ad sets has been consistently bringing in purchases for $15 all week. This is a clear signal to increase the budget on that specific ad set to get more of those profitable results before performance changes.

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2. To Cut Back on Underperforming Assets

The flip side of scaling winners is cutting your losses with underperformers. Not every ad, ad set, or campaign will be a home run. If an asset is consistently failing to meet your key performance indicators (KPIs) after running for a few days, it’s time to reduce its budget or pause it entirely. This keeps you from wasting money and frees up those funds to re-invest in your winning campaigns.

Example: You are running a lead generation campaign, and while one ad set is bringing in leads for $5, another is barely converting at $50 per lead. You should decrease the budget on the expensive one to stop inefficient spending.

3. To Adapt to Promotions or Seasonality

Your marketing efforts don't happen in a vacuum. External factors should influence your budget. If you're launching a major sale, like a Black Friday promotion, you'll want to significantly increase your budget to capture the surge in demand. Conversely, you might pull back spending during slower periods of the year when your target audience is less active.

4. After the Initial "Learning Phase" is Complete

When you first launch a campaign or ad set, Facebook’s algorithm enters a "learning phase." During this period, it's experimenting to figure out the best way to deliver your ads. It's generally a bad idea to make significant changes during this time. Once your ad set exits the learning phase (and you have stable, predictable performance), you have a real baseline you can use to decide whether to scale your budget up or pull it back.

How to Change Your Daily Budget: Step-by-Step Instructions

Editing your budget in Facebook Ads Manager takes just a few clicks. The method you use depends on whether your budget is set at the Ad Set level or at the Campaign level using Advantage Campaign Budget.

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Method 1: Change Your Budget at the Ad Set Level

This is the most direct way to control spend for individual audiences you’re targeting. If you set your budget manually for each ad set, follow these steps.

1. Open Facebook Ads Manager: Navigate to your Ads Manager dashboard.
2. Go to the 'Ad Sets' Tab: Click on the 'Ad Sets' tab to see a list of all your ad sets.
3. Locate the Budget Column: Find the ad set you want to update and look for the "Budget" column.
4. Click to Edit: Hover your cursor over the budget amount for that ad set. A small pencil icon will appear. Click on it. Alternatively, you can select the checkbox next to the ad set and click the "Edit" button in the toolbar that appears.
5. Enter the New Budget: A text box will appear. Type in your new desired daily budget.
6. Publish Your Changes: After entering the new amount, click the blue "Publish" button that appears in the top right. Facebook will then review and apply your change, which is usually a quick process.

Method 2: Change Your Budget at the Campaign Level (Advantage Campaign Budget)

This allows you to set one central budget for an entire campaign. Facebook then automatically distributes that budget in real-time to the best-performing ad sets within that campaign. This simplifies management and maximizes results by giving more funds to your top audiences.

If you're using this feature, you change the budget at the campaign level, not for individual ad sets.

1. Open Facebook Ads Manager: Start from your main Ads Manager dashboard.
2. Go to the 'Campaigns' Tab: Click on the 'Campaigns' tab to view all of your campaigns.
3. Find Your Campaign: Locate the campaign where Advantage Campaign Budget is turned on. You can confirm by checking the "Budget" column - it will show the amount at the campaign level.
4. Click to Edit the Budget: Hover over the budget number in that column. The pencil icon will appear. Click it.
5. Set the New Total Campaign Budget: Enter the new daily budget you want Facebook to manage across all the ad sets within that campaign.
6. Publish the Campaign: Click the "Publish" button to save your changes. Facebook will start working with the new total budget, adjusting spend distribution on the fly.

Best Practices for Facebook Budget Management

Changing your budget is simple, but managing it wisely is what separates a novice from an expert. Keep these principles in mind to avoid common mistakes.

Avoid Making Drastic Changes

Large, sudden budget increases (like going from $10/day to $100/day overnight) can send the Facebook algorithm back into the learning phase. This resets its progress and can cause your performance to become volatile. As a general rule, try to scale your budget incrementally - an increase of 20-30% every few days is a much safer approach. This gives the algorithm time to adjust smoothly and find new conversions efficiently at the higher spending level.

Make Changes at the Start of the Day

Pacing is everything. Facebook tries to spend your daily budget evenly over a 24-hour period. If you double your budget at 10 PM, the algorithm might try to spend the entire new amount in just two hours, leading to inefficiency. To avoid this, it's best to make significant budget changes just after midnight in your ad account's time zone. This gives the system a full 24 hours to re-calibrate its spending pace.

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Be Patient and Let Data Accumulate

Ad performance fluctuates naturally from day to day. Don't panic and make another drastic change if your CPAs are a little high just one day after an increase. Give any budget change at least 2-3 days to settle in and gather enough data before you evaluate its impact and decide on your next move. Making daily knee-jerk reactions is a fast way to destabilize your entire account.

Use Automated Rules

If you find yourself manually adjusting budgets every single day, consider using Facebook's Automated Rules. You can create simple rules to manage spend for you, taking the emotion out of it. For example, you can set a rule like:

• "If ROAS for an ad set has been greater than 4 over the last 3 days, increase its daily budget by 20%."
• "If the cost per lead is more than $30 today, pause the ad set."

This can save you immense amounts of time and ensure you're always acting on data-driven signals.

Final Thoughts

Changing your daily Facebook ad budget is a simple process, but doing it with a clear strategy is what drives growth. By understanding when to scale up a winner, cut back on a loser, and making incremental adjustments, you can maintain stable campaign performance and maximize your return on investment.

Staying on top of your Facebook Ads performance is just one part of the puzzle. At a certain point, it becomes really hard to see how a change in ad performance affects your sales from Shopify or leads in Salesforce without logging into a dozen different platforms. We built Graphed to solve this by bringing all your marketing and sales data into one place. You can use simple, natural language to ask questions, build dashboards, and instantly understand your full business performance without wrestling with complicated reporting tools.