When the discount rate increases, borrowing becomes more expensive, the present value of future money shrinks, and economic activity generally slows. But the specific effects depend on which discount rate you’re talking about. The term shows up in two distinct contexts: the rate the Federal Reserve charges banks for short-term loans, and the rate used in financial calculations to determine what future cash flows are worth today. A rise in either one has real consequences, though they play out differently.
Two Meanings of “Discount Rate”
In monetary policy, the discount rate is the interest rate the Federal Reserve charges commercial banks when they borrow directly through what’s called the discount window. As of January 2026, this primary credit rate sits at 3.75%. Because banks won’t borrow from each other at a rate higher than what the Fed charges, the discount rate acts as a ceiling for short-term interbank lending rates. When the Fed raises it, that ceiling moves up, pulling other interest rates along with it.
In finance and investing, the discount rate is the percentage used to convert future dollars into today’s dollars. It reflects the time value of money: a dollar you receive five years from now is worth less than a dollar in your hand today, because today’s dollar could be invested and earn a return in the meantime. Businesses use this rate to evaluate whether a project or investment is worth pursuing. The higher the discount rate, the less those future dollars are worth in today’s terms.
How a Higher Fed Discount Rate Slows the Economy
When the Federal Reserve raises the discount rate, it’s signaling that it wants to tighten financial conditions. Banks that borrow from the Fed now pay more for those loans, and that higher cost gets passed along to consumers and businesses through higher interest rates on mortgages, car loans, credit cards, and business lines of credit. The Fed typically adjusts the discount rate in lockstep with other key rates it controls, so the entire structure of short-term interest rates moves up together.
Higher borrowing costs discourage spending. Fewer people take out loans for homes or cars. Businesses delay or cancel expansion plans. As demand for goods and services falls, price pressures ease. This is the core mechanism central banks use to fight inflation: make money more expensive, and people use less of it.
The 1970s and early 1980s offer the most dramatic example. The Federal Reserve pushed its key lending rate progressively higher than the inflation rate for four consecutive years, from 1978 through 1981, before both interest rates and inflation finally began to fall. It worked, but the cost was a painful recession. That tradeoff between controlling prices and supporting growth is the central tension in every rate-hiking cycle.
Effects on Currency and Foreign Investment
Higher domestic interest rates tend to strengthen a country’s currency. When U.S. rates rise, dollar-denominated assets offer better returns, attracting foreign investors who need to buy dollars to make those investments. This increased demand pushes the dollar’s value up relative to other currencies. Research on macroeconomic variables has consistently found that an increase in U.S. interest rates is accompanied by an appreciation of the dollar, while a decrease leads to depreciation.
A stronger dollar has its own ripple effects. It makes imports cheaper for American consumers but makes U.S. exports more expensive for foreign buyers, which can widen the trade deficit. For multinational companies, a strong dollar means overseas profits are worth less when converted back.
There’s a caveat: the currency impact depends on surprise. If markets already expected the rate increase, they’ve already priced it in. Only unanticipated changes in the discount rate move exchange rates meaningfully.
What Happens to Bond Prices
Bond prices and interest rates move in opposite directions. This is one of the most fundamental relationships in finance. When the discount rate rises, existing bonds that were issued at lower rates become less attractive. Why would an investor pay full price for a bond yielding 3% when new bonds offer 4%? They won’t, so the price of the older bond drops until its effective yield matches the new, higher rate.
According to the U.S. Treasury’s own pricing guidelines, when the yield on a bond is higher than the stated interest rate, the bond trades below its face value. The longer a bond has until maturity, the more sensitive its price is to rate changes. A 30-year Treasury bond will lose significantly more value from a one-percentage-point rate increase than a 2-year note will. This is why long-term bondholders are hit hardest during rate-hiking cycles.
How It Changes Business Investment Decisions
When companies evaluate whether to build a new factory, launch a product, or acquire another business, they estimate the future cash flows that investment will generate and then discount those flows back to the present using a rate that reflects their cost of capital. A higher discount rate makes every future dollar worth less in today’s terms, which means fewer projects clear the profitability bar.
Consider a simple example. A project expected to generate $1 million per year for ten years looks very different at a 5% discount rate versus a 10% discount rate. At 5%, the present value of those cash flows is roughly $7.7 million. At 10%, it drops to about $6.1 million. If the project costs $7 million to build, it’s a go at the lower rate and a clear rejection at the higher one. This is how rising rates directly reduce business investment across the economy.
Research on industrial firms confirms the pattern. When a company’s overall cost of capital increases, the economic value it creates from investments tends to decline. One study found that for every unit increase in the weighted average cost of capital, economic value added decreased by over 200 units. Companies respond by becoming more selective, approving only their highest-return projects and shelving the rest. Capital spending slows, hiring pauses, and growth decelerates.
Effects on the Stock Market
Stock prices represent the market’s best guess at a company’s future earnings, discounted back to the present. When the discount rate rises, that present value falls, and stock prices tend to drop. Growth stocks are particularly vulnerable because their value depends heavily on earnings projected far into the future. Those distant cash flows lose the most value when the discount rate climbs.
There’s also an indirect effect. Higher rates give investors an alternative to stocks. When Treasury bonds or savings accounts offer meaningful returns, the appeal of riskier equity investments diminishes. Money flows out of stocks and into safer, higher-yielding assets, putting additional downward pressure on share prices.
An Unusual Wrinkle With Inflation
One counterintuitive finding from recent economic research: many firms don’t actually adjust their internal discount rates when inflation expectations change. They keep using the same nominal rate. When expected inflation rises but the discount rate stays fixed, the real (inflation-adjusted) discount rate effectively falls, which can actually encourage more investment rather than less. This “sticky discount rate” behavior means that the textbook relationship between rates, inflation, and investment doesn’t always play out as cleanly in practice as economic models predict.
This disconnect helps explain why some rate-hiking cycles take longer to cool the economy than expected. If businesses are slow to update the rates they use for internal decision-making, the Fed’s policy changes take longer to filter through to real investment decisions on the ground.