The process is deceptively simple on the surface…just plug a few numbers into your favorite retirement calculator and within seconds you have a mathematically precise answer showing how much money you need to retire. Millions of people (including highly qualified financial planners) follow this exact process and bet their retirement security on the result every year. But, is it accurate? Can you actually rely on what it tells you? Unfortunately, like so many things today, it’s not as simple as it appears… Hiding behind this facade of simplicity is a complicated maze of assumptions that can invalidate the results produced. Every retirement calculator, whether state-of-the-art Monte Carlo or old-school rules of thumb, must make certain assumptions in order to complete the calculation. There are no exceptions, and the accuracy of these assumptions can make or break your retirement security. Let’s look a little closer at five of these assumptions, so you can decide if you should rethink how much money you need to retire: Life Expectancy Assumption: How Long Must My Money Last In Retirement? Most financial planners and retirement calculators assume a “normal” life expectancy unless health concerns merit a different conclusion. Normal life expectancy is determined by consulting actuarial tables like those used by the IRS or insurance companies to determine average life span. This sounds reasonable on the surface but is fatally flawed from an individual retirement planning standpoint. Actuarial tables are only valid when applied to large numbers but have zero validity for any one person’s retirement. The truth is your date with destiny is no more likely to occur at the statistical average than any year before or after that date. Planning on an average lifespan is completely misleading and can cause you to dangerously underestimate savings needs. In fact, roughly half the people will live less than the average and half the people will live longer than the average (and your goal is to end up in the second half). Today there is a 60 percent chance that one member of a couple at age 60 will make it to 90 or beyond, and this number is growing. Obviously, that is much older than the averages would indicate requiring much greater retirement savings. In addition, the averages are rising every year. Longevity has been increasing by roughly 100 days per year for the last 100 years adding 30 years to life expectancy in the last century. With breakthroughs in biotechnology and nanotechnology, it is completely reasonable to expect the averages to grow at an accelerating rate adding many years to your life beyond what the actuarial tables would indicate based on today’s data. In short, planning your retirement based on today’s average life expectancy is a dangerously misleading practice that could cause you to run out of money when you need it most. Inflation Assumption: What Is A Reasonable Estimate For Inflation During Retirement? Inflation is a required component of every estimate for how much money you need to retire and potentially the biggest risk to your retirement security. The reason is simple – it is a number that affects the compound growth of your money causing small changes in inflation to have surprisingly huge impacts on the savings required. Most advisers and online retirement calculators assume 3% for inflation because that is the average during the recent past – roughly 20-30 years. But the history of inflation has not always been so sanguine. In the 1970’s prices doubled in one short decade cutting the purchasing power of your savings in half! Additionally, economic fundamentals have changed in recent years making the last 30 years a potentially poor indicator for the future. The credit crunch that began in 2008 caused ballooning government debts and deficits with all the stimulus programs and bank bailouts. Combine these facts with mushrooming entitlement programs like Social Security and Medicare that face financial problems, and it may be prudent to budget for higher inflation rates than recent history would indicate. Remember, small changes in inflation that seem benign can cause dramatic changes in how much money you need to retire because the difference compounds making it multiplicative. If you’re not clear how this works, it is best to prove it to yourself using your choice of free retirement calculators that allows you to conveniently vary individual assumptions while keeping the others constant. For example, try varying inflation between 3% to 7% while also varying longevity assumptions to provide for at least one spouse reaching age 95. It is a worthwhile exercise that might just surprise you by how much it changes the amount of money you need to retire. Budget Assumption: Is 80% Of Current Spending Really Enough Money To Retire? The conventional wisdom in retirement planning is to assume 80% of current spending as a reasonable approximation for your retirement budget. Unfortunately, research contradicts this all-too-common assumption. Sure, some expenses will drop during retirement like commuting costs, business clothes, not to mention your retirement savings contributions, but other expenses are just as likely to increase. For example, it is not uncommon for the first decade of retirement to cost more than your working years because of active lifestyles, costs associated with new interests and hobbies, increased travel expenses, and more. The good news is that evidence does support retirement spending decreasing with aging; however, the bad news is other research indicates this benefit is largely offset by rising medical expenses, prescription drug costs, and inflation. In short, you would be wise to formulate your own retirement budget based on your personal plan for retirement. Some people will spend less and others will spend more than they did during their working years, but blindly assuming 80% of pre-retirement income because it is conventional wisdom can be very dangerous and potentially misleading. Annual Income Assumption From Sources Other Than Retirement

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5 Reasons To Rethink How Much Money You Need To Retire

