When you go for a job interview, you should be worrying about whether you’ll be able to demonstrate that you’re a good fit for the company, and that the interviewers will think that your skills and experience are up to scratch.
But, unfortunately, that’s often the least of your worries. Many Singapore companies do not look for the best candidate for the job—they look for the cheapest. And they’re willing to hire anyone who’s able to do a vaguely decent job so long as they’re able to pay them less than the competition.
Of course, unless you’re absolutely desperate for the cash and there are no other jobs in sight, you definitely don’t want such an employer to hire you in the first place. And the easiest way to weed them out is to refuse to disclose your salary history.