Money Data Thieves from Outer Space Related Content Annuity Comparison This calculator compares a hypothetical fixed annuity with an account where the interest is taxed each year. Do You Owe The AMT? If you want to avoid potential surprises at tax time, it may make sense to know where you stand when it comes to the AMT. Why do Renters Have to Save More? How much more would retirement cost if you owned your home rather than rented? It could actually be several times less.