5 Smart Investing Principles The slideshow presentation that you would like to view is too large for your current screen resolution. Click here to view to view the slideshow at full resolution. Launch Presentation » Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content A Brief History of Estate Taxes Federal estate taxes have long since been a lucrative source of funding for the federal government. Your Changing Definition of Risk in Retirement A change in your mindset during retirement may drive changes to your portfolio. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.