Yes, you can swear on YouTube without losing monetization. Even strong profanity may qualify for full ads. Moderate profanity is unrestricted. You only lose revenue when strong profanity is used at very high frequency (limited ads), appears in titles or thumbnails (limited/no ads), or involves slurs (full demonetization). Bleeped profanity never counts against you. Keep titles and thumbnails clean, bleep heavy-swearing formats like gaming or comedy, and self-certify accurately on upload to protect your ad revenue.