The company is going to get this information, period. They can ask your last employer for title, compensation and tenure. The Recruiter needs to ensure you are “in range” for the position. If you are $100,000 and the job is $300,000, you are probably not senior enough. If you are $200,000 and the job pays $100,000 the Recruiter won’t be able to meet your compensation requirements. Do not lie! Give your base salary and total compensation. Do not spin. Do not embellish. I guarantee you this...you will get caught.