Every account on your credit report is a tradeline. Your credit card, your car loan, your mortgage — they’re all tradelines. That’s the technical definition, and for most people’s purposes, that’s all it means. But there’s a second, more specific use of the term that’s worth understanding: personal credit tradelines in the context of authorized user accounts, which is a completely different animal and the reason people actually search this phrase. For a full breakdown of the concept, I also wrote a post specifically on what is a tradeline.


