What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate. Ways to Manage Your Money and Taxes in Retirement Careful planning and tax-efficient drawdown strategies can help you enjoy the lifestyle you've dreamed of in retirement. The Junk Drawer Approach to Investing It's easy to let investments accumulate like old receipts in a junk drawer.