Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Related Content How Income Taxes Work A quick look at how federal income taxes work. What If You Get Audited? The chances of an IRS audit aren't that high. And being audited does not necessarily imply that the IRS suspects wrongdoing. Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax.