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Free Plumber Calculator

Plumber Break Even Calculator

This free plumber break-even calculator shows how many jobs you need each month to cover your fixed costs. Enter monthly overhead, average variable cost per job, and your average job value — your monthly target is calculated instantly.

Break Even Calculator

Contribution per Job$780.00
Jobs to Break Even6
Break-Even Revenue$7,200.00
Jobs to Hit Goal17

TradeToolCalc calculators are for informational and educational purposes only. Results are estimates based on the inputs you provide and should not be relied upon as financial, legal, or professional advice. Always verify figures with a qualified accountant or business advisor before making pricing or business decisions. TradeToolCalc accepts no liability for decisions made based on calculator outputs.

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Plumber Break Even Calculator — Frequently Asked Questions

Most independent plumbers need between 8 and 12 jobs per month to cover their fixed costs. This assumes an average job value of around $1,200 and monthly fixed overhead of $4,000—$5,000. If you do smaller repair work averaging $400—$600 per job, your break-even job count will be higher — in the 15—20 jobs per month range.
Variable costs are expenses that only occur when you actually do a job — mainly materials, consumables, and fuel for that specific trip. For a typical $1,200 plumbing job, variable costs often run $350—$480 (roughly 30—40% of job value). Fixed costs like van payments, insurance, and phone exist whether you work or not and are handled separately in this calculator.
For a sole-trader plumber, monthly fixed costs typically include: van payment or lease ($400—$700), insurance ($150—$300), tools and equipment amortisation ($100—$200), licensing and software ($50—$100), phone and internet ($80—$150), and marketing or lead generation ($100—$300). Altogether, $3,500—$5,500 per month is a common range, and this calculator defaults to $4,500.
The average plumbing job value varies widely by service type. Emergency call-outs and simple repairs might average $300—$600, while bathroom remodels and re-piping projects can run $3,000—$8,000+. For a general plumbing business with a mix of repair, maintenance, and installation work, an average job value of $900—$1,400 is realistic. This calculator defaults to $1,200.
There are three levers: raise your average job value by upselling (e.g., replacing an old water heater while fixing a leak), lower fixed costs by renegotiating insurance or ditching unused subscriptions, or reduce variable costs by buying materials in bulk and managing waste better. Increasing average job value by even $200 per job often has a bigger impact than cutting costs.

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