It could help their score, but it could possibly hurt their score, too. If the card is maxed out or has high utility, that could drop their score.
FICOs: TU08 842 EQ08 850 EX08 850
My Wallet: Amex Gold NPSL; Amex Optima Platinum $25K; Amex BCE $12K; Apple Card $20K; BofA Travel Rewards Visa Sig $67.6K; Cap1 Quicksilver Visa Sig $10K; CSP $28.2K; Chase Freedom $13K; Chase Freedom Unlimited $21.4K; Citi Costco Visa $19.3K; Citi Double Cash $13.5K; Citi Simplicity Visa $23.3K; Discover IT $50K; Fidelity Visa $25K; NFCU Flagship Visa Sig $40K; NFCU More Rewards Amex $30K; PenFed Plat Rewards Visa Sig $50K; Sears MC $10.1K; US Bank Altitude Go Visa Sig $20K; US Bank Cash+ Visa Sig $26K; Wells Fargo Rewards Visa Sig $14K
