If you’ve got an excellent credit rating, you can boost a loved one’s credit score almost immediately through a practice known as piggybacking.
If you have great credit, you can improve a loved one’s poor credit score almost overnight by “piggybacking” them on your credit card.
A few years back, something called “credit piggybacking” was widely advertised as the savior for those with bad credit but plenty of money. According to the credit rebuilders, all you had to do was pay a stiff fee, and they’d make you an authorized user on the credit card of someone with spotless credit.
All it took was a few weeks and a thousand bucks, and voila! Your credit score was instantly boosted. It worked, too. All that the rating services saw was your association with that excellent font of credit, and just like the child’s game of piggyback, your score was lifted proportionately.