Idaho real estate glossary

70% Rule: House Flipping vs. Long-Term Rental Investing

The 70% rule serves distinct roles depending on an investor's strategy: in house flipping, it establishes a strict Maximum Allowable Offer (MAO) to protect short-term profit margins, whereas in long-term rental investing, it functions primarily as a maximum Loan-to-Value (LTV) ceiling during refinancing or an operating expense benchmark.

Updated with grounded research as of 2026-07-24.

The short answer

The 70% rule differs fundamentally between house flipping and long-term rental investing based on how equity, debt, and cash flow are evaluated. For house flippers, the 70% rule is a quick offer formula calculated as Maximum Allowable Offer = (After-Repair Value × 0.70) − Estimated Repair Costs. The remaining 30% acts as a safety buffer covering acquisition costs, interest rates, holding fees, listing expenses, and net capital gains upon resale. In contrast, long-term rental investors rarely use the 70% rule as a hard purchase cap; instead, they apply 70% to maximum Loan-to-Value (LTV) limits when executing cash-out refinances (such as in the BRRRR method—Buy, Rehab, Rent, Refinance, Repeat) or as an operational benchmark, prioritizing recurring rental income and long-term appreciation over rapid property disposition.

Key facts

House Flipping Application
In house flipping, the 70% rule determines the Maximum Allowable Offer (MAO = [After-Repair Value × 0.70] − Estimated Repair Costs) to reserve a 30% margin for closing fees, holding costs, agent commissions, and profit upon resale.
Long-Term Rental Application
In long-term rental strategies, 70% typically represents the target maximum Loan-to-Value (LTV) ratio when refinancing capital out of a rehabilitated property or acts as an operating expense ratio ceiling rather than a strict purchase cap.
Primary Objective Difference
Flippers utilize the 70% rule to capture immediate equity and short-term profit, while rental investors use financial metrics to secure long-term cash flow, debt coverage, and equity build-up over time.

How the 70% Rule Functions for House Flipping

When flipping real estate, time is an investor's biggest cost. The 70% rule is designed to safeguard flippers from market shifts, construction cost overruns, and prolonged holding periods by capping the initial purchase price.

  • Formula: Maximum Allowable Offer (MAO) = (After-Repair Value × 0.70) − Estimated Repair Costs.
  • The 30% Margin: Covers purchase/sale closing fees, financing costs (such as hard money loan interest), holding expenses (taxes, insurance, utilities), and net profit.
  • Short-Term Focus: Prioritizes immediate margin over ongoing rental performance.

How Long-Term Rental Investors Apply 70% Benchmarks

For buy-and-hold real estate investors, purchasing a property at 70% of After-Repair Value (ARV) minus repairs is often difficult in competitive markets. Consequently, rental investors apply the 70% figure differently.

  • BRRRR Strategy: Refinancing lenders usually cap cash-out loans at 70% to 75% LTV, meaning an investor who buys and rehabs for 70% of ARV can recover 100% of their invested capital.
  • Operating Ratios: Some landlords use 70% as a conservative upper cap for total operating costs plus debt service against gross rental revenue.
  • Cash Flow Priority: Rental investors rely on debt service coverage ratios (DSCR), cap rates, and net cash flow rather than short-term resale profit buffers.

Key Differences in Market Application and Strategy

Because flipping and rental strategies serve different financial goals, strict adherence to the 70% rule varies depending on market conditions and investor horizon.

  • Market Competition: In competitive real estate markets, flippers may have to adjust their criteria to 75% or 80%, narrowing safety margins, whereas rental investors can compensate for higher purchase prices through long-term rent appreciation.
  • Holding Costs vs. Depreciation: Flippers bear acute holding costs during repairs, while rental owners benefit from tax depreciation, principal reduction through tenant rent, and long-term asset growth.
  • Exit Strategy: A flipper relies on a single liquidation event, whereas a landlord maintains multiple exit options, including holding through market cycles.

Common questions

What is the difference between the 70% rule and the 1% rule in real estate?

The 70% rule is an acquisition formula used to determine purchase limits based on After-Repair Value and repair costs. The 1% rule is a rental screening metric stating that monthly gross rent should equal or exceed 1% of the total purchase price to help ensure positive cash flow.

How does the BRRRR strategy utilize the 70% rule for rental properties?

In the BRRRR strategy (Buy, Rehab, Rent, Refinance, Repeat), investors use the 70% benchmark so that total capital invested (purchase plus repairs) equals 70% or less of the home's ARV. When refinancing at a typical 70% or 75% LTV limit, the investor can extract all their cash to reinvest elsewhere.

Can real estate investors use an 80% rule instead of a 70% rule?

Yes. In competitive or high-priced markets where inventory is tight, investors sometimes adjust the rule to 75% or 80% to win deals. However, raising the threshold reduces the buffer for unexpected repair overruns, higher interest rates, and unexpected holding delays.

Related Idaho questions

  • What is the difference between the 70% rule and the 1% rule in real estate investing?
  • How does the BRRRR strategy utilize the 70% rule for rental properties?
  • How do holding costs affect the 70% rule for house flips?

Sources and verification