Job 9 of 19 · Outline

Work out an hourly and day rate that actually covers your costs

The problem

Lots of plumbers price by guessing what the next person charges. Starting from your real costs shows the rate you need to make a living.

What AI does

AI does the sums to show the hourly and day rate that would cover your yearly costs and the pay you want, from figures you supply. You check every sum and decide your rates yourself; AI gives no financial advice.

Time

Time: About 30 minutesTools: ChatGPT, Gemini, Google Sheets

The steps, in short

  1. Gather a year of business costs and the pay you want.
  2. Work out the realistic paid hours in a typical week.
  3. Have AI work through the sums and show its working.
  4. Check every figure, then decide your rates yourself.

A short sample prompt

I'm a self-employed plumber in [nation]. Using only my figures, show step by step the hourly and day rate that would cover these yearly costs and pay. Costs: [list]. Pay: [amount]. Hours: [number]. Show all workings.

In the full playbook

  • 4 steps in full
  • The exact prompt to copy
  • A check-before-you-send list (3 points)
  • UK notes with official sources
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