What your money says, and what it buys
Watching balances and payments rise on paper while the money seems to go less far, and wanting to know which of the two numbers is real
Every sum of money has two numbers. The one printed on the statement, and what that figure buys. They agree only when prices hold still.
Almost everything quoted to a household is the first number. The interest rate on a savings account, the salary in an offer letter, the monthly figure on a pension, the price a house sold for. Almost nothing is quoted as the second, and no rule requires it. A saver earning 0.4% while prices rise 3% receives an accurate statement every month and gets poorer at a steady, knowable rate that appears in none of them.
The arithmetic that separates the two numbers is one line long. It changes the answer on a raise, a cost-of-living adjustment, a fixed pension, a mortgage, a savings balance and a house.
Inflation is also the one force in household finance that runs both ways. It erodes a payment you receive and it erodes a payment you owe. Which side a household is on depends on the account, and most households are on both at once.
Nominal is the figure as printed. Real is the figure after inflation. Real is roughly nominal minus inflation, and exactly (1 + nominal) ÷ (1 + inflation) − 1.
Read →A savings account paying 0.4% while prices rise 3% loses about 2.6% a year in purchasing power, and every statement it sends shows a larger number than the last.
Read →A raise is an increase only where it exceeds inflation. Three percent against four percent inflation is about a 1% cut: $60,000 becomes $61,800 and buys $577 less. A pay freeze during 3% inflation is a cut of about 2.9%.
Read →A COLA raises a nominal payment to track a measured price index, so a working COLA leaves you level rather than better off. Social Security's is set from CPI-W, third quarter to third quarter, and recent adjustments ran 8.7%, 3.2% and 2.5% in consecutive years.
Read →A fixed payment falls in purchasing power every year. At 3% inflation, $2,000 a month buys $1,488 after ten years, $1,107 after twenty, and about half by year 24.
Read →A fixed-rate payment shrinks in real terms every year prices rise. A $2,000 payment costs about $1,284 in original money after fifteen years at 3% inflation, and $300,000 owed in thirty years is worth about $123,600 today.
Read →A house bought for $200,000 and sold for $400,000 twenty years later doubled in nominal terms and gained about 10.7% in real terms at 3% inflation, or 0.51% a year. At 2.5% inflation the real gain is about 22%.
Read →Deposits are loans you make; collect a real rate on them. HYSAs for liquid parking, CDs for dated money, T-bills for the safest lending there is.
Read →Two health subsidies are ending at once. An enhanced marketplace premium credit has expired. That left 80% of re-enrollees facing higher costs, more than half calling them a lot higher, and 17% unsure they can afford their premium at all.
Read →Social Security timing is buying insurance against living a long time, with a break-even story attached. Claiming early maximizes certainty now; waiting maximizes the guaranteed floor against the expensive outcome.
Read →How much of your NEST survives retirement depends partly on the order you empty it: accounts are taxed differently, brackets reset every year, and sequencing across both is worth real money.
Read →Compounding needs time, not genius: an ordinary rate, extraordinary patience, and an unbroken streak. Start as early as starting is possible, automate the steadiness, and guard against the big loss.
Read →NEST is what you actually own: assets minus liabilities, the running total that every period's NET feeds and every decade's compounding multiplies.
Read →Plenee Academy provides financial information and education, not personalized financial advice. Plenee Co. is not a registered investment adviser, broker-dealer, or financial planner. Some of this material is written with AI assistance and may contain mistakes. Check anything you plan to act on. Legal Disclosures & Notices →