What is the difference between real and nominal pay?

Nominal pay is your actual salary figure. Real pay is your purchasing power — what that salary can actually buy. If your salary rises 3% but inflation is 4%, your nominal pay is higher but your real pay has fallen by about 1%.

CPI (Consumer Prices Index) is the UK's main measure of inflation, tracking the price of a basket of goods and services. The Bank of England targets 2% CPI. When CPI rises faster than your salary, your purchasing power falls.

What is the difference between CPI and RPI?

CPI (Consumer Prices Index) is the official Bank of England target measure and excludes housing costs like mortgage interest. RPI (Retail Prices Index) includes housing costs, making it typically 1–2% higher than CPI. RPI is used to uprate some contracts, rail fares, and student loan interest rates. Because RPI is generally higher, wage settlements benchmarked against it tend to protect purchasing power better than CPI-linked ones.

Fiscal drag happens when tax thresholds are frozen while wages rise with inflation. Even if your salary only keeps pace with inflation, a greater proportion of it falls into higher tax bands — meaning you pay more tax in real terms without any policy change. The UK personal allowance has been frozen at £12,570 since 2021/22 and won't rise until 2029, meaning fiscal drag is reducing real take-home pay for millions of workers every year.

🇬🇧 UK Financial Tools · 2026/27

Salary vs Inflation Calculator
is your pay keeping up?

See whether your pay rise is actually beating inflation — or losing ground in real terms.

✓ Updated for 2026/27 tax year ✓ Uses official HMRC tax bands ✓ No personal data stored ✓ Free — always

Salary vs Inflation Calculator

See if your pay rise is actually keeping up with inflation. A 3% raise with 4% inflation means your real income fell by 1%.

📉 Pay vs Prices

Enter your salary details and compare against UK inflation figures.

Current Annual Salary

Your Pay Rise this Year (%)

3.0%

UK Inflation Rate — CPI (%) i

2.6%

Years to Project

5 yrs

Compare Against a Second Raise (%)

5.0%

Real Income Impact

Real pay change this year

—

Your raise—

Inflation (CPI)—

Real pay change—

New salary (nominal)—

New salary (in today's money)—

Purchasing power lost/gained—

📉

Protect your money from inflation

High-interest savings accounts and index funds can help beat CPI. (affiliate link)

Compare options →

Raise A vs Raise B over 5 years

Scenario A cumulative real value—

Scenario B cumulative real value—

Difference after 5 yrs—

UK salary vs inflation — does your pay rise make you better off?

A pay rise sounds unambiguously positive — but whether you're genuinely better off depends entirely on whether your raise exceeds the rate of inflation. If prices rise by 4% and your salary increases by 3%, your real purchasing power has actually fallen by roughly 1%. This calculator makes that relationship visible, showing you the real value of your raise in today's money.

The key metric is your real pay change: the percentage change in what your salary can actually buy, after stripping out the effect of rising prices. It's calculated as: ((1 + raise%) ÷ (1 + inflation%) − 1) × 100. A positive number means you're genuinely better off in real terms. A negative number means that despite a nominal raise, your standard of living has declined.

Understanding CPI and RPI

The UK uses two main inflation measures. The Consumer Prices Index (CPI) is the official target measure for the Bank of England, covering a broad basket of goods and services. The Retail Prices Index (RPI) is an older measure that includes housing costs — particularly mortgage interest — making it typically higher than CPI. Many wage negotiations use RPI as a benchmark since it better reflects what workers spend money on. The default in this calculator uses a representative CPI rate, but you can enter any rate to model different scenarios.

Fiscal drag — the hidden tax rise

Even when pay rises match inflation perfectly, you may end up paying more tax. This happens because the UK's income tax thresholds are not always uprated with inflation. When thresholds stay fixed but wages rise with inflation, a larger portion of earnings falls into higher tax bands — a phenomenon called fiscal drag. This is one reason your real take-home pay increase can be smaller than your gross pay rise suggests.

Projecting over multiple years

Small annual differences in real pay change compound significantly over time. A sustained 1% annual real pay rise means meaningfully higher purchasing power within a decade. Use the multi-year projection to visualise how different raise scenarios diverge over a 5, 10 or 20 year horizon — and to make a stronger case in your next salary review.

Salary vs Inflation Calculator — Does Your Raise Beat Rising Prices?

A pay rise only improves your standard of living if it exceeds the rate of inflation. This calculator compares your salary increase against the Consumer Prices Index (CPI) to show whether you're genuinely better off — or quietly taking a real-terms pay cut.

The UK experienced unusually high inflation from 2021–2023, peaking at 11.1% in October 2022. Many workers who received 3–5% pay rises during this period actually saw their purchasing power fall significantly.

Understanding real vs nominal pay

Nominal pay rise: The percentage increase in your salary in cash terms — the number your employer quotes.
Real pay rise: The increase in your actual purchasing power after inflation. Calculated as: ((1 + raise%) / (1 + CPI%)) − 1.
Real-terms pay cut: When CPI exceeds your pay rise. A 3% raise with 5% inflation means your spending power falls by ~1.9%.
Fiscal drag: Frozen tax thresholds mean inflation pushes more of your income into higher tax bands even without a pay rise — a hidden pay cut often worth £500–2,000/year.