If you want to access the 1040-ES forms to determine the amount TurboTax calculates you should be aware that the forms will not show up in the forms view under 2 circumstances. The are not available if you have not entered Social Security income or if you have checked the box confirming that you will be using the IRS provided 1040-ES Estimated Tax forms. I thought I should post this because TurboTax support was unable to resolve the problem after 4 calls.