search
AI
Credit-Cards
Explore helpful credit card guides, including card activation, online account setup, mobile app access, replacement card instructions, security verification, payment management, and troubleshooting tips. Find quick answers to common credit card questions and account-related issues.
👉Activate Your Capital One Card
Article
Learn How to Activate Your New or Replacement Capital One Credit Card
When you receive a new or replacement credit card, you’ll need to activate it by confirming the 3-digit security code on the back. Here’s how.
Make sure to download the Capital One app and enroll in o
Popular articles
Learn How to Activate Your New or Replacement Capital One Credit Card
When you receive a new or replacement credit card, you’ll need to activate it by confirming the 3-digit security code on the back. Here’s how.
Make sure to download the Capital One app and enroll in o
Previous
Help Center
Next
Learn How to Activate Your New or Replacement Capital One Credit Card
Last modified: 2026-06-15Powered by;}.cls-2{fill:%230868f7;}.cls-3{fill:url(%23未命名的渐变_44);}.cls-4{fill:%23333;}%3c/style%3e%3clinearGradient%20id='未命名的渐变_8'%20x1='33.73'%20y1='100.61'%20x2='-0.03'%20y2='-1.06'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20offset='0'%20stop-color='%237ae9fb'/%3e%3cstop%20offset='0.67'%20stop-color='%232b90f8'/%3e%3cstop%20offset='1'%20stop-color='%230868f7'/%3e%3c/linearGradient%3e%3clinearGradient%20id='未命名的渐变_44'%20x1='27.86'%20y1='18.67'%20x2='68.36'%20y2='22.22'%20gradientUnits='userSpaceOnUse'%3e%3cstop%20offset='0'%20stop-color='%235ac7f2'/%3e%3cstop%20offset='1'%20stop-color='%230868f7'/%3e%3c/linearGradient%3e%3c/defs%3e%3cpath%20class='cls-1'%20d='M29,28.74V81.91l-9.51-3.68v0L8.52,74A7.17,7.17,0,0,1,4,67.32V24.54A3.76,3.76,0,0,1,9.08,21Z'/%3e%3cpath%20class='cls-2'%20d='M68.09,78.07a13.15,13.15,0,0,1-17.9,12.06L29,81.91h0V28.74L50.19,37A13.17,13.17,0,0,0,68.08,25.3h0Z'/%3e%3cpath%20class='cls-3'%20d='M68.08,25.3a13.19,13.19,0,0,1-6.73,10.87A13.09,13.09,0,0,1,50.19,37L29,28.74V6A3.76,3.76,0,0,1,34.1,2.52l25.59,9.91A13.22,13.22,0,0,1,68.08,25.3Z'/%3e%3cpath%20class='cls-4'%20d='M129.06,81.76a4.33,4.33,0,0,1-3.19-1.31,4.4,4.4,0,0,1-1.31-3.24V56.86H97.65V77.21a4.36,4.36,0,0,1-1.35,3.2A4.68,4.68,0,0,1,93,81.76a4.32,4.32,0,0,1-3.19-1.31,4.37,4.37,0,0,1-1.32-3.24V27.27A4.58,4.58,0,0,1,89.83,24a4.59,4.59,0,0,1,7.82,3.27V48.15h26.91V27.27A4.58,4.58,0,0,1,125.91,24a4.59,4.59,0,0,1,7.82,3.27V77.21a4.37,4.37,0,0,1-1.36,3.2A4.65,4.65,0,0,1,129.06,81.76Z'/%3e%3cpath%20class='cls-4'%20d='M163.77,81.66c-6.57,0-11.76-1.92-15.44-5.7s-5.54-9.07-5.54-15.74a26.76,26.76,0,0,1,2.09-10.43,17.72,17.72,0,0,1,6.67-8.06,19.15,19.15,0,0,1,10.68-2.95,19,19,0,0,1,10.46,2.8,18.7,18.7,0,0,1,6.55,7.36,22.53,22.53,0,0,1,2.36,10.28A4.51,4.51,0,0,1,177,63.77H152.23a10.8,10.8,0,0,0,3.49,6.65c2,1.68,4.88,2.52,8.66,2.52a22.25,22.25,0,0,0,7.54-1.21c.74-.3,1.55-.67,2.37-1.07a3.75,3.75,0,0,1,1.84-.4,4.09,4.09,0,0,1,3,1.15,4,4,0,0,1,1.12,3,4.38,4.38,0,0,1-2.58,3.82,32.34,32.34,0,0,1-6.36,2.61A28.67,28.67,0,0,1,163.77,81.66ZM172.4,55.9a9.72,9.72,0,0,0-1.63-4.56A9.9,9.9,0,0,0,167,48a10.38,10.38,0,0,0-4.64-1.14,12,12,0,0,0-4.77,1.06,9.54,9.54,0,0,0-4.89,5.66,11.78,11.78,0,0,0-.51,2.3Z'/%3e%3cpath%20class='cls-4'%20d='M193,81.64a4.49,4.49,0,0,1-4.51-4.55V27.28A4.58,4.58,0,0,1,189.84,24a4.48,4.48,0,0,1,3.28-1.36A4.36,4.36,0,0,1,196.35,24a4.46,4.46,0,0,1,1.31,3.31V77.09a4.34,4.34,0,0,1-1.35,3.2A4.67,4.67,0,0,1,193,81.64Z'/%3e%3cpath%20class='cls-4'%20d='M263.79,81.71a5.7,5.7,0,0,1-4.2-1.74,5.76,5.76,0,0,1-1.73-4.19V27.37a4.58,4.58,0,0,1,1.35-3.27A4.59,4.59,0,0,1,267,27.37V72.53h24a4.58,4.58,0,0,1,3.27,7.82A4.66,4.66,0,0,1,291,81.71Z'/%3e%3cpath%20class='cls-4'%20d='M424.48,81.74a4.71,4.71,0,0,1-2.71-.88,5.43,5.43,0,0,1-1-1l-.07-.09-12.41-17-5.41,5v9.44a4.31,4.31,0,0,1-1.36,3.19,4.66,4.66,0,0,1-3.3,1.36A4.29,4.29,0,0,1,395,80.42a4.36,4.36,0,0,1-1.32-3.23V27.37A4.58,4.58,0,0,1,395,24.1a4.52,4.52,0,0,1,6.58.12,4.54,4.54,0,0,1,1.24,3.15V56.31l17.72-16.38.05,0a4.8,4.8,0,0,1,2.94-1.11,4.4,4.4,0,0,1,3.27,1.2,4.57,4.57,0,0,1,1.2,3.27,4.44,4.44,0,0,1-.77,2.33,7.45,7.45,0,0,1-1.43,1.65l-11,9.64,13.34,17.68a5,5,0,0,1,1,2.71,4.12,4.12,0,0,1-1.36,3.24A4.64,4.64,0,0,1,424.48,81.74Z'/%3e%3cpath%20class='cls-4'%20d='M317.93,81.76a21.5,21.5,0,1,1,21.17-21.5A21.37,21.37,0,0,1,317.93,81.76Zm0-34.1a12.61,12.61,0,1,0,12.42,12.6A12.52,12.52,0,0,0,317.93,47.66Z'/%3e%3cpath%20class='cls-4'%20d='M212.18,101.22a4.12,4.12,0,0,1-3.05-1.26,4.17,4.17,0,0,1-1.26-3.1V43.34a4.37,4.37,0,0,1,1.3-3.14,4.26,4.26,0,0,1,3.13-1.3,4.19,4.19,0,0,1,3.1,1.26,4.32,4.32,0,0,1,1.26,3.16,20.77,20.77,0,0,1,13-4.54,21.51,21.51,0,0,1,0,43,20.51,20.51,0,0,1-13-4.57V96.86a4.15,4.15,0,0,1-1.3,3.06A4.5,4.5,0,0,1,212.18,101.22Zm17.43-53.63c-6.23,0-12.93,4.11-12.93,12.72a12.73,12.73,0,0,0,25.46,0A12.71,12.71,0,0,0,229.61,47.59Z'/%3e%3cpath%20class='cls-4'%20d='M365.76,81.76a21.5,21.5,0,1,1,21.18-21.5A21.37,21.37,0,0,1,365.76,81.76Zm0-34.1a12.61,12.61,0,1,0,12.42,12.6A12.52,12.52,0,0,0,365.76,47.66Z'/%3e%3c/svg%3e)