Starting this month, publishers using Google AdSense will no longer see invalid click and impression activity included in their AdSense reporting. This also means earnings deducted from that invalid activity won’t be included in the reports.
This change does not impact how earnings are calculated, how publishers get paid, or how Google monitors and filters invalid activity. It just means reports will only include the activity for which publishers actually earn revenue. Google states,
In most cases, removing the invalid activity from your reports means you can expect to see a slight decrease in clicks and impressions, causing a slight increase in CPC (cost-per-click) and RPM (revenue per thousand impressions).
Essentially, you’ll see a clearer representation of valid activity performance, including click-through rates, without having to deduct the invalid impressions and clicks.