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The Fix-and-Flip Profit Mistakes That Quietly Destroy Margins

Avoid these common fix-and-flip mistakes that eat into your profit margins, from underestimating holding costs to over-improving the property.

InvestorVI Team

May 8, 2026

The Hidden Costs of Flipping

Flipping houses on TV looks easy: buy, demo, paint, sell. In reality, fix-and-flip projects are heavily exposed to time delays, cost overruns, and market shifts. Margins can disappear quickly if you don't track every dollar.

Over-Improving for the Neighborhood

Installing marble countertops in a starter home neighborhood won't increase your ARV proportionately. It will just destroy your margin. Always match your finishes to the comps in that specific subdivision.

Underestimating Holding Costs

Every day a property sits unsold, it costs you money. Property taxes, insurance, utilities, hard money interest, and HOA fees continue to accrue. Always budget for a holding period that is 1-2 months longer than you expect.

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Ignoring Contingencies

Always include a 10-15% contingency in your rehab budget. You will inevitably find issues behind the walls or under the floors that were not visible during the initial walkthrough.