You enable ads on YouTube videos after joining the YouTube Partner Program by turning on monetization in YouTube Studio. Go to Content, select a video, open the Monetization tab and switch it on, choosing ad formats like pre-roll, mid-roll and post-roll.
For videos longer than eight minutes, you can add mid-roll ads manually or let YouTube place them automatically at natural breaks. Complete the advertiser-friendly self-certification questionnaire honestly; accurate ratings help protect your monetization. You can enable ads on all eligible past videos at once with bulk editing. Keep content advertiser-friendly to avoid limited or no ads, shown as a yellow icon.
Step-by-step plan
Join YPP and accept the ad revenue module.
Open Studio → Content and choose a video.
Turn on monetization and select ad formats.
Place mid-rolls on videos over eight minutes.
Complete the self-certification questionnaire accurately.
Why this works
YouTube monetization runs through the YouTube Partner Program. The full ad-revenue tier has required 1,000 subscribers plus either 4,000 public watch hours in the last 12 months or 10 million public Shorts views in the last 90 days, with a lower fan-funding tier at 500 subscribers. Thresholds and eligible countries change, so confirm the live numbers in YouTube Studio's Earn tab. Reviewers also check that the channel is original, advertiser-friendly and policy-compliant.
Common mistake to avoid
Overloading mid-roll ads at awkward moments. Poor ad placement can increase drop-offs and reduce overall earnings.
Pro tip
Watch the audience retention graph around your existing mid-roll markers. If you see a sharp drop at an ad break, move it to a natural pause, such as a chapter transition, to protect watch time.
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