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From my personal experience running personal loan campaigns, starting with a daily budget of around $20–$50 is a reasonable range for testing. It gives you enough room to collect meaningful data without overspending while you're still figuring out what works. I tested on a few networks, including 7Search PPC, and found that the lower CPC rates there allowed me to stretch a smaller budget further compared to some of the bigger platforms.
The key during the testing phase is to observe how different ad creatives and keywords perform. On 7Search PPC, for example, I experimented with both generic terms like “best personal loans” and more targeted ones like “emergency loan with bad credit,” and saw very different engagement levels. So instead of just increasing the budget blindly, I tweaked targeting first.
Once I had a clear winner in terms of CTR and conversions, I started scaling gradually. But honestly, even at $25/day, I got solid traffic and a decent ROI because I wasn’t competing with big-budget advertisers.
So yeah, you don’t need to go big right away. Start small, optimize constantly, and scale when you see clear results. Hope that helps!