Assuming you made $500K last year and just went out on LTD, you would get $183K (305x0.6) for the first 2 years and then 152.5K (305x0.5) till you turn 65. This is considered taxable income and would be adjusted up as the Federal limit on the $305K increases with time. If you have the supplemental LTD insurance (with 12 or 24month wait option), you would get an additional non taxable $85K (500x0.17) till you turn 65.

Does that sound about right?