Also, I could be wrong but I don't think a new employer will contact a previous employer to specifically learn how much a particular individual was earning.
This isn't the question that I answered. It was asked how stating a specific, untrue salary might be fraud.
Refusing to answer and giving an untrue number are different.
> Also, I could be wrong but I don't think a new employer will contact a previous employer to specifically learn how much a particular individual was earning.
Lying doesn't mean you'll get caught.
Also, be careful. For example, during a background check for one my jobs (a rather "ordinary" one), they said they couldn't verify one of my previous employers, and asked if I could send them proof. I sent W2s for both years I was employed and my offer letter, which satisfied them. Maybe some would feel that's too remote a risk to worry about, but it's not out of the question.
But don't lie to them, especially if they're going to pay you more because of that lie.
The salary negotiation is a completely separate event.
It's somewhat like lying about a credential.