We have all heard the expression, “back in my day…” followed by the amount a particular item used to cost. While it’s somewhat of a cliché, it does carry a lot of weight. The impact of inflation on your cost of living has real consequences, and factoring it into your retirement plan is of paramount importance.

Consider someone who is planning to retire at 66 years old. Current actuarial figures give them a retirement window of about 25 years. Using 3% for average annual inflation, the future value of a dollar 25 years out is $.48. Put another way, you can afford to buy less than half as many goods 25 years into retirement as you could when you started. Fortunately, that is not the end of the story.

There are several ways to insulate your retirement income from the effects of inflation.

One solution has to do with retirement pensions. Once the pension spigot is turned on, one thing that can increase the flow is a Cost of Living Adjustment, or COLA. A COLA increases annual pension amounts based upon the previous year’s rate of inflation. The important thing to know is whether your pension has a COLA. Without one, you will become increasingly dependent upon other assets as time goes on. Remember, 25 years from now a dollar will be worth less than half of what it is worth today. With a COLA, you will still need to understand how your increasing income stream fits in with your other assets and your specific retirement plan.

Another pension source most people have in retirement is Social Security Income, or SSI. The COLA for SSI is tied to the Consumer Price Index. As such, it varies from year to year.

The final piece to consider is your retirement accounts, such as IRAs, Roth IRAs and taxable brokerage accounts. These accounts do not provide a fixed income stream in the sense that a pension does. Typically, they are invested in an allocation of stocks and bonds controlled by you or your investment advisor. Distributions are on an as-needed basis.

Stocks have historically been the best long-term hedge against inflation. In a sense, they act as a super charged COLA for your retirement accounts. How much stock you allocate to these accounts and how the accounts will supplement your pensions requires careful consideration.

No two retirement plans are alike. Understanding how the unique pieces of your retirement puzzle fit together to meet your retirement goals is what’s important. If you have not already done so, take the time to sit down with a professional who can help you figure out where you are, where you want to go and most importantly, how to get there.