What is the Number of months introductory APR is active? The Number of months introductory APR is active is the term of the introductory rate. This is the amount of time that the intro APR will stay in effect. You will always be able to find this on the application or in the terms and conditions of the credit card offer. Be sure that you read the terms and conditions of any offer before applying so that this teaser rate won't go way up after the introductory term. >> Back to the Custom Balance Transfer Savings Calculator >> Back to the Main Index