It is always best to negotiate these matters as part of a transfer package, before accepting the new job, to avoid surprises to either the employee or the company after the move has taken place. Cost of a familiarization and house-hunting trip for the employee, spouse, and family. Moving expenses, including packing and insurance. Company will pay commissions and other costs of sale. Buy down the interest rate.
Company provides low or no interest loans.
A salary level commensurate with any increase in cost of living between the new location and your old location. You will want to minimize the tax impact of any benefits you receive. For information on the tax ramifications of your relocation expenses and any reimbursements by your employer, see the IRS Publication 521, Moving Expenses. Try to analyze your bargaining position relative to the prospective employer. Courtesy of Jill Hill's Real Estate Guide for Marin County, California.