Pay History & Back-Pay Pack · £7.99 one-time

What your pay awards were really worth, and what you are owed.

Compare roles in real terms, see your own pay path against prices since you started, model back pay for late awards with overtime, and print or save a briefing. The pack already uses your saved inputs from the free calculators.

Multi-role comparisonYour career pathBack-pay scenariosPrint, CSV, saveAI answers
One payment · no subscription
01

Your career, not just a role

Enter the year you started and when you moved pay point. See your pay in today's money and what pay awards alone did, separate from promotion.

02

Back-pay scenarios

See gross and estimated take-home back pay if an award is one to twenty-four months late, across six roles, with your overtime hours included.

03

A briefing you can print

A clean report with charts, tables, sources and an optional AI-written summary, saved to your account or exported as CSV.

Real pay since 2010−10.6%

Pay versus inflation

Role and stage
National NJC pay point. Every award since 2009 is from the published circulars.
Inflation measure
Consumer Prices Index: the official headline measure.
Start from
Pay and prices are both measured from July of this year.

Inflation: ONS CPI series D7BT, released 16 September 2026. Prices are July of each year; today's money means July 2026 prices.

Roles to compare (up to 4)

Illustrative planning estimate based on published rules, not financial, legal, pension or tax advice. Your payroll record, contract and scheme administrator control your actual position.

Try the free pay vs inflation calculator and the free back-pay calculator first: both stay free.

What the pack is for

The free tools answer two questions for one role: has pay kept up with prices from a year you choose, and how much back pay is owed when an award is implemented late. Real careers are less tidy. You may have started at a different pay point from the one you are on now, moved up through development, competent and crew manager, and you may want to know how much of your pay change came from national awards and how much from your own progression. You may also be comparing your role with a colleague's, or checking what a late award would mean with your overtime included. The pack is built for those questions.

What is inside

  • Compare roles: up to four pay points side by side from any base year between 2009 and 2025, with a real-pay index chart, gap in pounds, CPI against RPI and the earnings shortfall to June 2026.
  • My career: your start year and pay path (development to competent, promotions, stage changes). The report shows your pay against a start pay that had tracked prices, your pay in today's money, and what the awards alone did to your starting pay.
  • Scenarios: gross and estimated take-home back pay for any award from 2012 to 2026, from 0 to 24 months late, for six roles, with overtime, plus a table of when recent NJC circulars were dated against their 1 July effective dates.
  • Report: a printable briefing with your assumptions, charts, award-by-award table, roles compared, career summary, back-pay scenario and full source list, with an optional AI-written summary of your figures. Save it to your account or download a CSV.
  • Ask AI: questions answered from your own figures, with the free questions and unlimited answers once unlocked.

How the numbers are built

Pay is the national basic annual pay from the NJC tables on 1 July each year from 2009 to 2026. Prices are the ONS Consumer Prices Index (D7BT) or Retail Prices Index (CHAW) for July of each year. "Today's money" means July 2026 prices. The gap is base-year pay multiplied by the index ratio, minus actual pay; the real-terms change is actual pay divided by that matched pay. The career report uses the rate in force on 1 July for each pay year and ignores the month a promotion took effect. Back pay uses the difference between the old and new annual pay divided by the pay periods in the year, times the periods at the old rate, plus overtime hours times the change in the published overtime rate, and a net estimate from a month-by-month PAYE model on 2026/27 rules.

Honest limits

This is a calculation from published figures about the past. It does not predict awards or inflation, it does not include overtime and allowances outside the back-pay scenarios, it uses national NJC scales in the comparison and career reports, and the net back-pay figure is an estimate that your payslip will overrule. The debate about what counts as pay keeping up with prices is a matter of choices, such as the base year and the index, and the report states the choices it made. Where a source does not state a headline percentage for a year, the report says so and still uses the published pay rates.

Who it is for

Serving firefighters and officers preparing for a pay discussion or union meeting, people checking an arrears line on a payslip, control staff and support colleagues on percentage-linked pay who want a like-for-like comparison, and anyone who wants a dated, sourced statement of what firefighter pay has done against prices. If you only need the headline for one role, the free calculators do that.

For background see firefighter pay rises history, how back pay is calculated and the FBU pay claim and NJC process. The pay report covers total earnings and take-home pay.

Frequently asked questions

What does the paid pack add to the two free calculators?

The free pay-versus-inflation and back-pay calculators stay free. The pack adds a multi-role comparison (up to four roles, CPI against RPI), a career report built from your own start year and pay path that separates pay awards from promotion, back-pay scenarios for late implementation by any number of months across roles with overtime, a printable briefing with an AI-written summary, saving to your account and unlimited AI answers about your numbers.

Is it a subscription?

No. It is one payment of £7.99. Guest checkout works, and a free account afterwards keeps your access on every device.

Where does the data come from?

Pay comes from the published NJC circulars (2022 to 2026) and the FBU's reproduction of the NJC tables (2009 to 2021). Inflation is the ONS CPI series D7BT and RPI series CHAW, July index values, ONS release of 16 September 2026. Every source is linked in the report and at the foot of the free pages. No figure is estimated.

Will it work for London Fire Brigade or another local scale?

The comparison and career reports use the national NJC scale. The back-pay calculator and scenarios accept your own old and new annual pay for local scales. The pack does not assume London or any other service's scale.

How is the AI-written briefing produced?

When you press the button, the figures in your report (not your name or email) are sent to an AI service that writes a short plain-English interpretation, which is labelled as AI-written in the report. It is optional, and you can print the report without it. AI can make mistakes, so check anything important with payroll or your union.

Is my information uploaded?

Calculations run in your browser and your choices are kept in this browser's local storage. If you save a report it goes to your account, and AI questions or the briefing send your report's figures to the AI service. Analytics see only coarse categories, never exact figures.

What is not included?

Overtime and allowances outside the back-pay scenarios, on-call pay, CPD, pension value, local scales in the comparison and career reports, student loan deductions, and any forecast of future awards or inflation. The report is a calculation from published figures about the past, not advice.