The average Social Security check to a retiree currently sits at $1,267.55. That works out to $15,210.60 per year, or around $7.61 per hour for a full-time, 2,000-hour-per-year job. For comparison, the minimum wage in the retiree haven of Florida currently sits at $7.79 per hour.
In other words, if your vision of retirement involves living in the Sunshine State, your Social Security check may very well get you in the neighborhood of the lifestyle enjoyed by minimum-wage employees.
Or does it?
As if that weren't enough, as you age, you're likely to spend more on health-care costs. While Medicare picks up much of the bill for retirees, only Medicare Part A is covered for free, assuming you're covered by a sufficient work history. To cover some of the costs that Medicare Part A doesn't, Medicare Part B premiums start at $104.90 per month.
For more comprehensive coverage above and beyond that, Medicare Advantage (sometimes called "Medicare Part C") premiums vary widely. That said, the typical Medicare Advantage plan that also includes decent prescription drug coverage cost around $65.78 per month in 2012, the most recent period with available information.
Put it all together, and the typical Social Security receiving retiree with decent Medicare coverage is really looking at a check closer to this:
Social Security Benefit
Medicare Part A
Medicare Part B
Medicare Part C w/Prescription Care
Data from Social Security, Medicare, and eHealthInsurance.com
That check is closer to the pre-tax earnings of someone working full time for $6.58 per hour, which is below the current Federal Minimum Wage of $7.25 per hour. And even maintaining that level of payments, of course, assumes that Social Security remains healthy -- when it's not exactly on track to remain that way for much longer.
Can you live on that?
Of course, retirees do have some advantages over their employed counterparts. For one thing, they get a tax break. They don't pay Social Security or (for the most part) Medicare taxes, and if their other income is low enough, their Social Security check is free from Federal income taxes. Plus, commuting is more optional, the dress code tends to be more relaxed, and senior discounts may well apply to several of their costs.
Also if your house is paid off, your kids grown and independent, and your idea of a happy retirement involves sitting on the porch, watching the world go by, that may well be a livable monthly check. It wouldn't earn you a spot on Lifestyles of the Rich and Famous, but with simple enough needs in a low enough cost part of the country, it might be enough to let you get by. To get a handle on about how much you'll need in addition to your Medicare-adjusted Social Security check, follow these steps:
1. Estimate your total monthly expenses at the type of lifestyle you'd like to lead when retired.
2. From that amount, subtract your estimated Social Security check after Medicare premiums.
3. Multiply the remaining amount by 12, to get a full year's picture of the costs you need to cover.
4. Multiply that full year's number by 25, to estimate the total nest egg you'll need to have.
So, in other words, if you think you'll be spending $1,000 a month above your net Social Security check, you'll need a nest egg of around $300,000 ($1,000 * 12 * 25) to get there.
Why that much?
That 25 times your annual spending number lets you invest based on what's known as the 4% rule. By investing based on that rule, you have a reasonable chance of maintaining your purchasing power (after inflation) throughout a 30 year retirement.
The authors of the study that inspired that rule presumed a balanced portfolio between stocks and bonds. So if you're looking to follow its teachings, one of the simplest ways to do so is with a couple of exchange-traded funds. Two ETFs that could get you that balanced portfolio are the stock market-tracking ETF Vanguard Total Stock Market and its bond counterpart, the Vanguard Total Bond Market .
If that savings target seems too high, your options include either working longer (to keep the length of your retirement shorter) or investing more aggressively. For instance, the PowerShares High Yield Dividend Achievers invests in higher-yielding companies with decent histories of raising their payouts. That ETF currently yields more than the Vanguard bond fund, and the companies in the PowerShares ETF have the potential to raise their payouts as they grow.
Substituting that dividend fund in place of some of the bond fund could let you get away with a smaller portfolio, if the market worked in your favor and the companies in that fund continued their dividend growth trends. But there remain no guarantees in investing, and shifts like that could also backfire if the market fails to cooperate in the future.
Start covering what Social Security won't
Still, even with no guarantees in the market, the reality is that even lousy investing beats not investing at all. All else being equal, the more you invest and the longer you continue to invest, the better your chances of building the nest egg you'll need to supplement Social Security and get you to the type of retirement you want.
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The article What Will Your Social Security Check Buy You? originally appeared on Fool.com.
Chuck Saletta and The Motley Fool have no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.
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