House Flipping Costs, ROI and Break-Even Sale Price

Use this guide if...

This guide is useful before changing flip cost, sale price or ROI assumptions.

• You are checking a project margin Use it when purchase, renovation, holding, financing and selling costs all affect profit.
• You want break-even sale price It explains how costs and selling fees turn into the sale price needed to avoid a loss.
• You need to pressure-test assumptions Use it to see why sale price, renovation overruns and holding period can move ROI quickly.

Main inputs explained

These inputs decide whether the project estimate has enough margin for costs and uncertainty.

• Purchase price The acquisition price is usually the largest project cost and the base for many percentage costs.
• Renovation budget and contingency Renovation costs plus contingency estimate the repair side of the project.
• Holding period Longer timelines increase carrying costs and financing interest.
• Financing costs Loan amount, rate, fees and interest can materially reduce profit.
• Selling costs Agent, closing, legal or other sale costs reduce net sale proceeds.
• Expected sale price The sale price is an assumption, not a valuation or guarantee.

Worked example

Suppose a property is bought for 260,000, needs 55,000 of renovation and contingency, and is expected to sell for 390,000.

Purchase price

260,000

The starting cost to acquire the property.

Renovation and contingency

55,000

Repair budget plus allowance for overruns in this simplified example.

Buying, holding and financing costs

29,000

8,000 buying costs, 12,000 holding costs and 9,000 financing costs.

Expected sale price

390,000

A generic resale assumption before selling costs.

Selling costs

23,400

6% of the expected sale price.

Estimated profit

About 22,600

Net sale proceeds minus project costs before tax.

ROI on total project cost

About 6.6%

Estimated profit divided by 344,000 of project cost before selling costs.

The project looks profitable in this simplified scenario, but the ROI and margin are thin enough that sale price, renovation overruns and delays matter.

Result interpretation

Read the result as a scenario based on the assumptions entered, not as a decision rule.

What changes the result most

Before using the tool, gather the inputs or assumptions that are most likely to move the result.

• Expected sale price Sale price changes flow directly into net proceeds after selling costs.
• Renovation overruns A larger repair bill can erase a thin margin quickly.
• Holding period Delays add carrying costs and can add financing interest.
• Selling cost percentage Percentage-based sale costs rise as the sale price rises and affect break-even.

Common mistakes

These are common ways an estimate can become cleaner than the real-world scenario.

• Using purchase plus renovation only Buying costs, holding costs, financing and sale costs can be the difference between profit and loss.
• Setting contingency to zero A no-overrun scenario can make a renovation look cleaner than a real project.
• Ignoring time A delayed sale can increase interest, taxes or rates, insurance, utilities and other carrying costs.
• Treating expected sale price as certain The calculator uses the sale price entered; it does not value the property or predict the market.

Related calculators

Use these calculators for carrying costs, renovation return and maximum offer checks.

Related guides

Use these guides to choose related property calculators and understand investment metrics.

What to try next

Use the next step that matches the question you want to answer.