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Roofing Bid Calculator

Bid price that holds your margin after contingency, sales commission and financing fees.

  • Formula checked
  • Editorially reviewed
  • Free · no signup
  • Updated June 27, 2026

Your details

USD

Material, labor, disposal, permits and allocated overhead.

%
%

Deck replacement, weather delays and unknowns found after tear-off.

%
%
USD

Optional. Enter 0 if unknown.

%

Your estimate

Recommended bid

$21,355.93

30% margin net of commission and fees

Gross profit at this bid$6,406.78
Break-Even bid$14,157.30
Loaded cost (with contingency)$12,600.00
Sales commission$1,708.47
Financing / card fees$640.68
Expected value of the bid$2,562.71
Versus competitor bid22.03%

Key takeaway

Bid $21,355.93 to hold a 30% margin — break-even is $14,157.30.

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Where the cost comes from

The same numbers as above, shown visually so the trade-offs are easy to see.

Where the cost comes from
Recommended bid
$21,355.93
Break-Even bid
$14,157.30
Loaded cost (with contingency)
$12,600.00
Gross profit at this bid
$6,406.78
Expected value of the bid
$2,562.71
Sales commission
$1,708.47

What to do next

Break-Even Bid$14,157.30High Risk

Break-even is beyond most people's holding period.

Benchmark: A refinance or points purchase only pays off if you hold past the break-even month. — CFPB mortgage shopping guidance

What this means

Break-even lands at $14,157.30. Before that point the upfront cost has not been recovered.

Is this good or bad?

No — this needs to change before you commit to anything new. Break-even is beyond most people's holding period.

What's the risk?

High risk. Act on this before taking on any new obligation.

What should you do next?

Compare to how long you'll stay

Your action plan

  1. 1

    Compare to how long you'll stay

    If you may move first, the upfront cost is a loss.

  2. 2

    Ask for a no-cost option

    A slightly higher rate with no fees can beat paying costs upfront.

  3. 3

    Confirm all fees are included

    Title, escrow and origination all belong in the break-even math.

  4. 4

    Re-run if rates move 0.25%

    Break-even is very sensitive to the rate spread.

Your timeline

Today

  • Save or print this result.
  • Note which inputs you guessed at.

This month

  • Replace estimated inputs with real numbers and re-run.
  • Compare alternatives before committing.

Next 12 months

  • Re-run this calculation as your situation changes.
  • Track the outcome against this baseline.

Long term

  • Revisit the decision annually.
  • Adjust as rates, income or goals change.
How you compare to U.S. benchmarks
MetricYour resultTypical U.S. rangeSource
Break-Even Bid$14,157.30Under 36 monthsCFPB mortgage shopping guidance

Your next steps on this site

Compare scenarios

Same inputs, three outlooks — we vary Target Gross Margin up and down so you can see the range before you commit.

Optimistic

$19,384.62

Recommended Bid

Target Gross Margin: 24%

Expected

$21,355.93

Recommended Bid

Target Gross Margin: 30%

Conservative

$23,773.58

Recommended Bid

Target Gross Margin: 36%

Result Intelligence

Understand your result

  • Your recommended bid is $21,355.93. Use it as a directional estimate; always confirm with an official source before acting.

What should you do next?

  1. Debt-to-Income Calculator

    Check whether lenders will approve you.

  2. Credit Utilization Calculator

    Lower utilization can improve your APR.

  3. Affordability Calculator

    See the maximum loan you should carry.

  4. Compound Interest Calculator

    Compare paying debt vs. investing the difference.

Ways to improve your result

  • Compare at least 3 alternatives before deciding.
  • Document assumptions so you can re-run this calculation as inputs change.
  • Consult a licensed professional before signing.

Common U.S. scenarios

U.S. household

Median assumptions used above; your city and credit tier will shift the numbers.

Your result

Recommended Bid
$21,355.93
Gross Profit at This Bid
$6,406.78
Break-Even Bid
$14,157.30
Loaded Cost (with contingency)
$12,600.00
Sales Commission
$1,708.47
Financing / Card Fees
$640.68

Bid $21,355.93 to hold a 30% margin — break-even is $14,157.30.

You may also want to check

What this result assumes

Confidence in a number depends on the assumptions behind it. Here are ours, in full.

Assumptions

  • Results are rounded for display; internal math uses full precision.

Limitations

This is an estimate for planning and education, not a quote or professional advice.

Estimates are for education and planning. They are not financial, tax or legal advice.

Formula source

Published U.S. federal agency guidance and standard financial mathematics

Version
v1.3
Last reviewed
MethodologyReferences

Related Calculators

Where to go next

Next logical calculatorRoof Replacement Cost CalculatorEstimate the full installed cost of a roof replacement including tear-off, permits and disposal.Continue

Quick answer

What it does
Roofing Bid Calculator bid price that holds your margin after contingency, sales commission and financing fees. It runs entirely in your browser, needs no signup, and uses standard published U.S. formulas.
When to use
Use it whenever you need a fast, reliable roofing bid estimate.
Inputs
  • Total Job Cost
  • Target Gross Margin
  • Contingency
  • Sales Commission
  • Financing / Card Processing Fee
  • Known Competitor Bid
Outputs
  • Recommended Bid
  • Gross Profit at This Bid
  • Break-Even Bid
  • Loaded Cost (with contingency)
  • Sales Commission
  • Financing / Card Fees
Takeaway
In one line: enter your total job cost and target gross margin and the Roofing Bid Calculator returns recommended bid and gross profit at this bid you can compare before deciding.

Last updated · 1 min read

How to read your result

Roofing Bid Calculator: Your result appears above. It's a fast estimate based on the inputs you entered — use it to compare options, then confirm with a professional before making a decision.

What your result means

  • The number is only as accurate as your inputs — small errors compound.
  • Compare 2–3 scenarios rather than acting on a single result.
  • Talk to a licensed professional before making a large financial or medical decision.

How does the formula work?

Loaded cost = job cost × (1 + contingency). Bid = loaded cost ÷ (1 − margin % − commission % − fee %). Break-even bid = loaded cost ÷ (1 − commission % − fee %). Expected value = gross profit × win probability.

How it works

The mistake that quietly kills roofing companies is treating commission and processing fees as expenses paid out of profit rather than costs baked into the price. If you want 30% margin and you pay 8% commission and 3% to a financing partner, you must divide by 0.59, not 0.70 — otherwise the salesperson and the lender take a third of your margin. The second discipline is a break-even bid: the number below which the job loses money no matter how badly you want the work. Knowing it lets you discount deliberately in a slow month instead of discovering the loss at closeout.

Step-by-step guide

  1. 1Enter each input value into the calculator above.
  2. 2Review the result and any auto-generated breakdowns.
  3. 3Adjust inputs to compare scenarios.
  4. 4Copy, share, or print the results.

Example calculation

Example: A $12,000-cost residential reroof bid at a 30% margin with an 8% commission and 3% financing fee.

Who should use this calculator?

  • Anyone who needs a fast, transparent estimate before making a decision.
  • Professionals validating a client-facing number.
  • Students learning the underlying formula.

When should you use it?

  • Any time you need a quick sanity check.
  • When comparing several scenarios side-by-side.
  • Before making a decision that depends on this number.

What affects the result?

  • Every input value you enter
  • The formula and assumptions displayed on this page
  • Rounding — small differences in inputs compound in the result

Common mistakes to avoid

  • Entering values in the wrong units.
  • Assuming the result includes taxes or fees when it may not.
  • Using rounded inputs and expecting exact figures.

Pro tips

  • Double-check your inputs before acting on the result.
  • Run 2–3 scenarios and compare — don't rely on a single number.
  • Save or print the results so you can review them later.

Why use this calculator

  • Instant results with no signup, no tracking and no ads inside the calculator.
  • Transparent formulas — you can see exactly how the number is produced.
  • Save, share, print or embed your results anywhere.
  • Reviewed and updated regularly by our editorial team.

Limitations to keep in mind

  • Estimates only — real-world results depend on many factors we cannot see.
  • Not professional advice — consult a qualified expert before acting.
  • Assumptions are shown; changing them will change the result.

Key terms explained

Input
A value you enter into the calculator. Small differences in inputs can compound into large differences in the result.
Assumption
A fixed value the calculator uses when it isn't asked from you. Assumptions are documented in the formula section.
Estimate
A directional figure produced from your inputs and standard formulas. Always sanity-check before acting.

Before you decide

  • Double-check every input for units and typos.
  • Compare 2–3 scenarios rather than trusting one result.
  • Confirm the assumptions in the formula match your situation.
  • Consult a qualified professional before acting on any large decision.

Trust & Accuracy

Accuracy tested

Verified against standard mathematical and financial conventions. Edge cases, formula validation and manual verification completed (last reviewed June 27, 2026).

Educational use

This tool is provided for education and planning only. It is not financial, tax, legal or medical advice.

Available for

United States, Canada, United Kingdom, Australia, India, European Union.

Currency support

USD · INR · CAD · AUD · GBP · EUR

Privacy

No information entered into this calculator is stored on our servers unless you explicitly choose to save or share your calculation.

Print, share & save

Use the Save, Share, Copy, PDF, CSV and Print actions under the result panel.

Accessibility

Keyboard navigable, screen-reader friendly labels, responsive on mobile and desktop.

Learn more: How we verify formulas · How we test accuracy · Methodology · Editorial policy

Recent Updates

We continuously review and improve our calculators to keep formulas, assumptions and references accurate.

View change log (4)Show
  1. v1.3

    Added Trust & Accuracy panel and machine-readable change log.

  2. v1.2

    Added Save, Share, PDF, CSV and Print actions to results.

  3. v1.1

    Added global currency selector (USD, INR, CAD, AUD, GBP, EUR).

  4. v1.0

    Initial calculator release with verified formulas and Official Sources.

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Frequently Asked Questions

Related guides

In-depth roofing guides, worked examples, and expert explainers.

Browse all guides Roofing hub

What's next?

Your next step

Most people who use this calculator explore these next. Follow the path in order for a complete plan.

  1. 1Roofing Markup CalculatorConvert between markup and margin and find the markup your target roofing margin requires.
  2. 2Roofing Material Cost CalculatorSupplier material cost with waste, decking, delivery, volume discount and sales tax.
  3. 3Social Security Break-Even CalculatorBreak-even age for claiming early (62) vs delaying to Full Retirement Age or 70.
  4. 4Mortgage Discount Points Break-Even CalculatorBreak-even on buying discount points to lower your mortgage rate.

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Reviewed by the CreditLoanCalculator editorial team·Last reviewed ·Editorial policy·How we verify formulas
Disclaimer: Results are estimates for informational purposes only and should not be considered financial, medical, legal, or professional advice. Always consult a qualified professional before making decisions.