The 70% Rule Is Dead: How to Actually Analyze a Flip in 2026

Why the 70% Rule No Longer Works

The 70% rule says: never pay more than 70% of a property's After Repair Value (ARV) minus repair costs. For decades, this was the gold standard for analyzing flips.

In 2026, it's dangerously oversimplified.

What Changed

The 70% rule was designed for a different market:

Interest rates were 4-5% — Now fix-and-flip rates are 10-12%

Holding periods were 3-4 months — Now 6-8 months is more realistic due to permitting delays and contractor availability

Insurance was predictable — Now builder's risk and vacant property insurance can add $3,000-$8,000 to a project

Closing costs were lower — Double-close scenarios and higher title insurance rates eat into margins

A Better Framework

Instead of the 70% rule, use this calculation:

Maximum Purchase = ARV - Rehab - Carrying Costs - Selling Costs - Minimum Profit

Where:

Rehab = Contractor bids + 15% contingency

Carrying costs = Monthly (loan payment + insurance + taxes + utilities) x expected hold time

Selling costs = 6-8% of ARV (agent commissions, transfer taxes, title)

Minimum profit = 15-20% of total investment (not ARV)

Real-World Example

Property: 3BR/2BA in suburban Atlanta

ARV: $350,000

Rehab estimate: $65,000

Carrying costs (6 months): $14,400

Selling costs (7%): $24,500

Minimum profit (18% of investment): ~$30,000

Maximum purchase = $350,000 - $65,000 - $14,400 - $24,500 - $30,000 = $216,100

The 70% rule would have said $180,000. The detailed analysis shows you can pay up to $216,100 and still make your target return. That's a $36,000 difference that could mean winning or losing the deal.

When to Walk Away

Even with the better framework, some deals don't work. Red flags:

Carrying costs exceed 5% of ARV

Rehab scope requires permits you can't get in 30 days

Comparable sales are more than 6 months old

ARV depends on "the market going up"

The bottom line: do the math every time. Rules of thumb lost people money in 2024 and they'll lose money in 2026.