About the numbers

Every comparison uses the published thresholds listed below. The data are stored once, so the calculator and the page tables use the same numbers.

Download the source register and thresholds (JSON) · Download the threshold table (CSV). Please cite the original statistical source and data period when reusing a figure.

UK individual income

The main calculator uses HMRC’s Survey of Personal Incomes for 2023/24. Its population is individuals with an Income Tax liability. The total includes relevant personal income before tax; it is neither employee salary alone nor the combined income of a household.

The live series uses published anchors at the 1st, 10th, 50th, 80th, 90th, 95th and 99th percentiles. Between them, the calculator interpolates linearly against the logarithm of income. Source figures are rounded. The result is displayed as an estimate.

The 80th and 95th percentile values come from the stored transcription of HMRC’s percentile table. The 1st, 10th, 50th, 90th and 99th percentile anchors were also checked against HMRC’s accompanying commentary. No synthetic intermediate anchors are used.

Amounts outside the lowest and highest anchors get a boundary result. There is no Pareto tail estimate, invented sub-percentile or model-derived confidence interval. The span between two source points is an interpolation interval, not a statistical confidence interval.

HMRC percentile table and definitions · HMRC commentary.

Salary by age and work region

The salary comparisons use ONS ASHE 2025 provisional annual gross pay for full-time employee jobs held for more than one year, both sexes. The published points are the 10th, 20th, 25th, 30th, 40th, 50th, 60th, 70th, 75th, 80th and 90th percentiles. Between them, the calculator interpolates linearly against the logarithm of pay and displays an estimate. Outside the published range, it gives only a boundary or top-10% result.

The age data come from Table 6.7a and the work-region data from Table 7.7a, each using the Full-Time worksheet. The national UK row agrees across both source workbooks. All 209 salary thresholds used here were transcribed from the numeric source cells, with no suppressed values included. Inspect the source cells and values.

Age refers to the employee. Region refers to the job’s place of work. Northern Ireland is included in the 2025 regional table. Age and region are separate marginal comparisons: we do not combine them into an invented “people of your age in your region” percentile or infer city-level pay from regional data.

The UK-wide median is £39,039; the London median is £49,692 and its top-10% threshold is £115,775. These use the same 2025 series as the detailed calculators. The figures are provisional survey estimates and may be revised. The latest detailed tables available when checked on 17 October 2026 were the 2025 provisional editions; the survey year is not a forecast of 2026 earnings.

ONS age tables · ONS place-of-work tables · Age source archive · Regional source archive.

Household wealth

The wealth calculator uses national Great Britain household thresholds from the ONS Wealth and Assets Survey, April 2020–March 2022. Northern Ireland is excluded. Wealth includes net property, net financial assets, private pension wealth and physical possessions.

Only the 10th, 50th, 90th and 99th percentile anchors are used. Between them we report a band. We do not estimate exact wealth percentiles, model the upper tail, or infer age-specific ranks from medians.

The survey’s accreditation was suspended from Round 8 in June 2025. Pandemic collection, non-response and pension valuation methods affect interpretation. Read the quality notice in the original release. Present-day asset values compared with this distribution are a historical illustration, with no inflation adjustment.

ONS wealth release, definitions and quality notice.

US household income

The US tool uses the 10th, 50th and 90th percentile values in Figure 4 of the Census Bureau’s Income in the United States: 2025, released in September 2026. These are annual household values. All household members aged 15 or over contribute relevant income to the household total.

The before-tax and post-tax columns form separate distributions. Post-tax income accounts for income and payroll taxes and tax credits using the Census definition. Selecting that measure does not estimate tax from the gross amount; enter the relevant post-tax total yourself.

Three published points support broad bands and threshold differences. They do not establish a precise percentile for an arbitrary amount. This page does not adjust for household size, state, local prices or purchasing power.

US Census report and tables · Report PDF, Figure 4, printed page 6.

Monthly household headroom

The budget tool subtracts entered housing payments, other spending and planned saving from entered net monthly income. The result is arithmetic, not a ranked household living standard. It does not estimate tax, benefits or pension values.

The tool does not show a household percentile because a reliable personalised rank needs verified household quantiles matched to the same income definition. The available data do not support that result. Enter your actual net income because the tool also does not estimate tax from gross pay.

Source register

Updates and corrections

Source periods are part of each result. A site release date never turns an old distribution into current-year data. Public-source links let you check the underlying definitions and any subsequent revisions.

Government data remain attributable to their original publishers. This site is independent and is not an official HMRC, ONS or Census service.