Principles of Preserving Wealth 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 Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences. How Stocks Work Understanding how a stock works is key to understanding your investments.