What is an authorized user tradeline?
When someone adds you as an authorized user on their credit card, the entire history of that account — its age, limit, and payment record — can appear on your credit report. A well-aged card with a low balance and perfect payments can add points quickly, especially on a thin or damaged file.
When it works
- The card is at least 2+ years old (older is better).
- The balance stays under 10% of the limit.
- The account has zero late payments.
- The issuer reports authorized users to all three bureaus (most major banks do; many store cards do not).
When it backfires
If the primary cardholder runs up the balance or misses a payment, that negative activity lands on your report too. You inherit the account's behavior for as long as you remain on it.
The honest take
An authorized user boost is a supplement, not a solution. It cannot erase collections, late payments, or charge-offs — and mortgage lenders increasingly discount AU accounts during manual underwriting. The foundation is still your own primary accounts: a secured card or credit-builder loan in your name, paid perfectly, plus removal of inaccurate negatives through disputes.
Use AU tradelines to thicken your file while The Credit Rush works on removing the items that are actually dragging your score down.