Determining Your Ad Spend: How Much Should You Invest in Testing a New Ad?

Danil Chernukha
Lampshade of ILLUMINATION
3 min readMay 5, 2024
Determining Your Ad Spend: How Much Should You Invest in Testing a New Ad? | Image by the author (https://vend.agency/)

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Understanding Ad Testing Budgets:

Testing is an essential part of any digital advertising strategy. It allows you to understand which ad creatives, audiences, and placements deliver the best results. However, determining the right amount to spend on these tests can be tricky, particularly for businesses new to digital advertising.

Set Clear Objectives:

Before you set a budget, clearly define what you want to achieve with your testing. Are you testing the effectiveness of different creatives, headlines, or perhaps the response of various demographic segments? Your objectives will guide how you structure your tests and how much you need to invest.

Calculate Based on Your Overall Ad Budget:

A practical rule of thumb is to allocate between 5% to 10% of your monthly advertising budget to testing. This range provides enough flexibility to gain meaningful insights while safeguarding the majority of your budget for proven strategies.

Use Industry Benchmarks and Historical Data:

Look at the average costs in your industry. For example, if the average cost-per-click (CPC) in your industry is $2, and you know your website’s conversion rate is 5%, you can calculate how many clicks you need to get a reliable sample of data. If you aim for at least 100 conversions to determine the efficacy of an ad, you would need around 2,000 clicks, totaling a test budget of $4,000.

Factor in Expected Conversion Rates:

Understanding your average conversion rate is crucial. If your site converts at 3%, and you want to test a new ad’s effectiveness in driving sales, you’ll need enough traffic to see a statistically significant number of conversions. Use this rate to back-calculate the necessary number of impressions or clicks needed for your test.

Be Prepared for Variability:

Market conditions, competition, and consumer behavior can all influence the cost and effectiveness of your ads. What works one month might not work the next. Therefore, it’s wise to approach testing with a flexible budget that can adapt to these changes.

Evaluate and Scale:

Start with a conservative test budget to gauge the ad’s initial performance. If the ad meets your KPIs or shows promise, gradually increase the budget while continuously optimizing based on the data collected. This method ensures that you are scaling your spending based on evidence rather than assumptions.

Document and Learn:

Every test provides valuable data, whether successful or not. Document these results and use them to refine your approach. Over time, these insights will help you optimize your testing strategy and improve ROI.

Conclusion:

Determining the right ad spend for testing new ads doesn’t have a one-size-fits-all answer. It requires understanding your market, setting clear goals, and preparing for variability. By strategically planning your test budgets and learning from each campaign, you can make more informed decisions that enhance the effectiveness of your advertising efforts and lead to better allocation of your marketing budget.

Incorporating these strategies will ensure that every dollar spent on testing contributes to a deeper understanding of your audience and what drives their decisions, setting the stage for more successful and cost-effective campaigns.

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Danil Chernukha
Lampshade of ILLUMINATION

CEO Vend Agency. Generating revenue for Ecommerce Shops, Online Schools, SaaS via Facebook Ads and TikTok.