Income information on your credit report is self-reported. You will notice that your credit card company asks periodically if your income has changed. That’s where it comes from. It is also non specific, an estimate of total income from all sources not just wages on one job. Perhaps you are independently wealthy with multiple income streams. No one will no the difference.
The work number (by equifax, a credit reporting agency) may report it though assuming your employer participate and gives them your pay and employment info.
