When Your Birthday Isn’t Your Birthday (According to Social Security)
Social Security benefits and birthdays go hand in hand, but for those born on certain specific days of the year, bureaucracy can add an interesting twist to such a simple concept.


There are a couple of circumstances where the Social Security Administration changes your birthdate for you. Chances are if this applies to you, you already know this, but I thought I’d explain it anyhow just so you’ll know what it’s all about.
First of the Month
If your date of birth falls on the first day of the month, then for Social Security purposes, your Birth Month is actually the month prior to your actual date of birth. So, if you were born on July 1, according to the Social Security Administration, your Birth Month — and therefore the month that your benefit is based upon (for example, Full Retirement Age) — is June. In this example, your Birth Year remains the same, but that’s not always the case … as you’ll see below.
First of January
In the case of a date of birth being Jan. 1, your Birth Month is December, and your Birth Year is the year prior to your actual birth.
From just $107.88 $24.99 for Kiplinger Personal Finance
Be a smarter, better informed investor.

Sign up for Kiplinger’s Free Newsletters
Profit and prosper with the best of expert advice on investing, taxes, retirement, personal finance and more - straight to your e-mail.
Profit and prosper with the best of expert advice - straight to your e-mail.
Twenty-ninth of February
If you are one of the lucky ones who happens to have been born on Leap Day, meaning Feb. 29, don’t worry! Even though your birthday only comes once every four years, your benefits won’t be affected. The Social Security Administration doesn’t really care what day of the month you were born on, only the month and year. So even though your actual date of birth anniversary doesn’t come every year, the month does, and the Social Security Administration counts February as your Birth Month in your case.
The Bottom Line
When it comes to Social Security, nothing is simple — even your birthday. Make sure you understand all the rules before making your benefit decisions.
Profit and prosper with the best of Kiplinger's advice on investing, taxes, retirement, personal finance and much more. Delivered daily. Enter your email in the box and click Sign Me Up.

Jim Blankenship of www.BlankenshipFinancial.com is a practicing fee-only financial planner, author and speaker, in New Berlin, Illinois. He has written three books, including the popular "Social Security Owner's Manual." Jim focuses extensively on Social Security, retirement plans and income taxes in writings on the blog www.FinancialDucksInARow.com.
-
Planning a Major Home Renovation? 3 Smart Ways to Finance It
From HELOCs to personal loans, here’s how to pay for a major home renovation without draining your savings.
-
Six Warren Buffett Quotes Every Retiree Should Live By
The 'Oracle of Omaha' knows a thing or two about life, investing and retirement.
-
Budget Hacks Won't Cut It: These Five Strategies From a Financial Planner Can Help Build Significant Wealth
Cutting out your daily latte might make you feel virtuous, but tracking pennies won't pay off. Here are some strategies that can actually build wealth.
-
To Unwrap a Budget-Friendly Holiday, Consider These Smart Moves From a Financial Professional
You can avoid a 'holiday hangover' of debt by setting a realistic budget, making a detailed list, considering alternative gifts, starting to save now and more.
-
Treat Home Equity Like Other Investments in Your Retirement Plan: Look at Its Track Record
Homeowners who are considering using home equity in their retirement plan can analyze it like they do their other investments. Here's how.
-
Why Does It Take Insurers So Darn Long to Pay Claims? An Insurance Expert Explains
The process of verification, investigation and cost assessment after a loss is complex and goes beyond simply cutting a check.
-
Two Reasons to Consider Deferred Compensation in the Wake of the OBBB, From a Financial Planner
Deferred compensation plans let you potentially lower your current taxes and help to keep you out of a higher tax bracket. It's important to consider the risks.
-
Financial Fact vs Fiction: The Truth About Social Security Entitlement (and Reverse Mortgages' Bad Rap)
Despite the 'entitlement' moniker, Social Security and Medicare are both benefits that workers earn. And reverse mortgages can be a strategic tool for certain people. Plus, we're setting the record straight on three other myths.
-
The End of 2%? An Investment Adviser's Case for Why the Fed Should Raise Its Inflation Target
Yes, inflation can be tough on those living on fixed incomes, but protecting us from it too strictly could do our overall economy more harm than good.
-
Medicare Open Enrollment: Why You Need to Pay Extra Attention to Part D, From a Financial Adviser
The lowest premium for prescription drug coverage might not actually save you the most money. Make sure you take copays into consideration and do the math.