One more day until unlinked Pan Card becomes "inoperative". You've got until December 31, 2025, to link your PAN and Aadhaar. After that, your PAN won't work if they're not connected. You can do it online, via SMS, or at service centers. There's a ₹1,000 penalty for linking late. This guide covers who needs to link, how to pay, and how to check your status.