Credit cards, while useful for building credit scores and simplifying payments, can pose risks when shared with friends and family. According to Section 285BA of the Income Tax Act in India, the Income Tax department monitors transactions through the Statement of Financial Transactions (SFT). Sharing a credit card may lead to discrepancies if the expenditures exceed the cardholder's reported income, potentially triggering a notice from tax authorities. Taxpayers should ensure they keep thorough records of credit card transactions and the sources of funds used for bill payments. This is particularly important if the funds come from gifts or other non-salary sources. Additionally, business expenses must be accurately reported to avoid mismatches that could raise red flags. To mitigate risks, individuals are advised to regularly check their Annual Information Statement (AIS) and ensure all financial information is consistent. Failure to justify credit card payments can result in the excess amount being classified as unreported income, leading to taxation and penalties.