You don’t need to spend any money to use Google AdSense. It’s a free service that allows you to monetize your website or blog by displaying ads. You can sign up for AdSense and start displaying ads on your site without paying any fees.

The costs associated with Google AdSense are typically related to:

1. Website hosting: You may need to pay for website hosting to keep your site online.
2. Content creation: You might invest time or money in creating high-quality content to attract visitors.

However, these costs are not directly related to Google AdSense. You can use AdSense without spending any money on the platform itself.

To start earning money with AdSense, focus on:

1. Creating high-quality content: Attract and engage your target audience.
2. Optimizing ad placement: Experiment with ad positions to improve click-through rates.
3. Increasing traffic: Drive more visitors to your website through SEO, social media, and other marketing strategies.

Once you’ve set up AdSense and started earning money, you can explore other ways to optimize your ad performance and increase revenue.