BuildCalcPRO
ServicesBlogAboutContact
Online
Request a Tool
BuildCalcPRO

Free construction calculators for contractors, builders, estimators, and homeowners. Every tool runs in your browser — no account, no subscription, your numbers never leave your device.

31 tools · Free forever

Platform

  • All tools
  • Categories
  • Services
  • Blog
  • Request a custom tool
  • Contact

Resources

  • How it works
  • Estimating guides
  • Master Proposal Builder
  • Bid cart

Company

  • About
  • Services
  • Contact

Legal

  • Privacy
  • Terms of use
  • Disclaimer
  • Concrete, Masonry & Earthwork
  • Framing, Carpentry & Roofing
  • Drywall, Tile & Finishes
  • Site Work, Decks & Fencing
  • MEP Quick-Check Estimators
  • Bidding, Markup & Financials
  • Field Converters & Master Proposal

© 2026 BuildCalc Pro. Free construction tools for everyone.

Estimates are planning aids verify quantities against your local codes and supplier quotes.

  1. Home
  2. Tools
  3. Bidding, Markup & Financials
  4. Daily Overhead & Breakeven Rate
NewOverhead< 3 minFree to use

Daily Overhead & Break-Even Calculator

Enter the five annual fixed-cost buckets honestly pull them from last year's books. Set billable days (220 is typical) and your profit buffer target (15% default). Use the daily overhead as the absolute floor and the survival rate as your minimum daily bid. Dispatch the allocation line with the project's day count.

Annual fixed overhead

$
$/yr
$
$/yr
$
$/yr
$
$/yr
$
$/yr
days
%
days

Daily overhead

$436.36

/DAY

Bill of materials+0% waste

MaterialNetWasteOrder

Daily overhead (zero-profit breakeven)

The floor never bid below this

Net $96,000.00 / 220 days · Waste —

$96,000.00 / 220 days—$436.36/day

Hourly shop overhead

add to labor burden

Net 8-hr day · Waste —

8-hr day—$54.55/hr

Survival rate (+15% profit target)

minimum daily bid threshold

Net dailyOverhead ÷ (1 − profit%) · Waste —

dailyOverhead ÷ (1 − profit%)—$513.37/day

Vehicles, fuel & maintenance

per year

Net — · Waste —

——$14,400.00

Liability & umbrella insurance

per year

Net — · Waste —

——$7,200.00

Office, software & phone

per year

Net — · Waste —

——$9,600.00

Owner / admin salary

per year

Net — · Waste —

——$60,000.00

Legal, bookkeeping & tax

per year

Net — · Waste —

——$4,800.00

Cost projection

Overhead allocation 5 days$2,181.80
Total$2,181.80

Saved on this device · No account · No cloud

survival $513.37/day

$436.36 /day breakeven

About this tool

Daily overhead = annual fixed costs ÷ billable days: the zero-profit floor. Never bid below it.

How to use

Enter the five annual fixed-cost buckets honestly pull them from last year's books. Set billable days (220 is typical) and your profit buffer target (15% default). Use the daily overhead as the absolute floor and the survival rate as your minimum daily bid. Dispatch the allocation line with the project's day count.

How the math works

Survival rate = daily overhead ÷ (1 − profit target): the minimum daily bid that actually leaves profit.

220 billable days (not 260) accounts for rain, holidays, breakdowns, and gaps between jobs.

Formula

Daily overhead = annual fixed costs ÷ billable days

Common questions

▸How do you calculate break-even for a construction company?

Divide annual fixed costs by billable days - the tool uses 220 days, not 260, to account for rain, holidays, breakdowns, and gaps between jobs. That daily overhead is the zero-profit floor; never bid below it.

▸What's the difference between daily overhead and the survival rate?

Daily overhead is the zero-profit breakeven. The survival rate divides overhead by (1 - profit target), so $400/day overhead with a 15% target gives a $471/day minimum bid that actually leaves profit.

▸Why 220 billable days instead of 260 weekdays?

Rain days, holidays, sick days, equipment breakdowns, and gaps between jobs eat roughly 40 days a year. Bidding against 260 days understates your true daily cost by about 15%.

▸Should labor burden be included in daily overhead?

No - keep them separate. This tool covers fixed business overhead like trucks, insurance, office, and admin. Field labor burden belongs in the True Burdened Labor Rate calculator; add both lines to a bid and nothing gets double-counted.

▸What is a good profit margin for contractors?

10-20% net is healthy for residential work. Set your profit target in the tool and the survival rate builds it into your minimum daily bid automatically.

Keep estimating

Related tools

More bidding calculators for this job.

Markup vs. Margin CalculatorMarkup vs margin calculator that converts between markup and margin, prices jobs from direct cost, and shows true net profit after overhead. Free, no sign-up.Use toolTrue Burdened Labor RateLabor burden rate calculator that converts a base wage into the true employer cost per billable hour - taxes, comp, PTO, benefits included. Free, no sign-up.Use toolSubcontractor Piece-Work & Crew ProductionSubcontractor piece rate calculator that computes total payout, effective hourly yield per worker, and production pace for piece-rate crews. Free, no sign-up.Use toolBreak-Even CalculatorBreak-even calculator for contractors that shows the monthly revenue and number of jobs needed each month before the business turns a profit. Free, no sign-up.Use tool
Back to Bidding, Markup & FinancialsExplore all tools