A tradeline is a revolving credit account (credit card) that can be extended from the account owner to an authorized user in order to boost their credit history, credit availability, and credit score.
You will not receive the actual card but the positive payment history and credit limit will show up on your credit report for at least four (4) reporting cycles.
After four (4) reporting cycles, you will be removed as an authorized user. The tradeline history will usually remain on your permanent credit history for 5 – 7 years. The positives affects to the credit score will start to diminish after being removed. Extensions available.
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