70% Rule in Real Estate Investing: Formula, Example & 2026 Data

Editor's Note - Updated July 2026: This post has been updated to include current Q1 2026 fix-and-flip market data, a worked example, and a decision framework, as well as to reflect current formatting standards. The core guidance on the 70% rule remains consistent with the original post.

The 70% rule in real estate investing is a quick screening formula that caps a property's maximum purchase price at 70% of its after-repair value (ARV) minus estimated renovation costs. Typical gross flipping returns rose to 25.4% in the first quarter of 2026, according to ATTOM's Q1 2026 U.S. Home Flipping Report, while renovation costs commonly run 20-33% of ARV. Fix-and-flip investors can use the formula as a first filter for offers, though a full deal analysis still matters before committing to a purchase.

Key Takeaways

The 70% rule caps offers at 70% of ARV minus estimated renovation costs.
Real estate investors paid an average of 67% of ARV nationally in Q1 2026.
Average renovation costs reached $79K per flip in Q1 2026.
Typical gross flipping ROI rose to 25.4% in Q1 2026.
Rehab costs often run 20-33% of ARV.

Figuring out what to offer on a distressed property can feel like guesswork, especially for a fix-and-flip investor evaluating a deal for the first time. The 70% rule gives fix-and-flip investors a fast way to set a ceiling price before diving into a full underwriting analysis.

What Is the 70% Rule in Real Estate Investing?

The 70% rule states that a fix-and-flip investor should pay no more than 70% of a property's after-repair value (ARV) minus the estimated cost of repairs. ARV is the projected market value of the property once renovations are complete, and the formula leaves a built-in buffer for financing, holding costs, selling fees, and profit.

The formula looks like this:

Maximum Allowable Offer (MAO) = (ARV × 0.70) − Estimated Repair Costs

A few terms worth defining before running the numbers:

After-repair value (ARV): the estimated resale value of the property once renovations are finished, typically based on recent comparable sales
Repair costs: the direct cost of renovation work, including materials, labor, and permits
Soft costs: closing costs, financing fees, holding costs, and selling costs, which are not part of the formula itself but come out of the 30% buffer

Kiavi Tip: Treat the 70% rule as a first filter, not a final offer. A property that clears the 70% threshold still needs a full expense analysis before you submit a bid.

How Do You Calculate the 70% Rule?

Applying the formula starts with two inputs: your best estimate of ARV and your best estimate of repair costs. Once you have both numbers, the math takes seconds.

Example (hypothetical):

Line Item	Amount
After-repair value (ARV)	$300,000
70% of ARV	$210,000
Estimated repair costs	$50,000
Maximum Allowable Offer (MAO)	$160,000

Actual terms vary by lender, market, and deal specifics.

In this hypothetical scenario, the fix-and-flip investor would cap their offer at $160,000. The roughly $90,000 difference between the Maximum Allowable Offer (MAO) and 70% of ARV covers repairs, and the remaining spread between the purchase price and ARV is meant to absorb financing costs, holding costs, selling fees, and profit.

Kiavi Tip: Accuracy on both inputs may matter more than the formula itself. Comparable sales research, using tools like Kiavi’s ARV estimator, may trend to produce a more reliable ARV than a rough guess, and getting multiple contractor bids before finalizing a repair estimate could help avoid an offer that looks safe on paper but leaves little real margin.

What Are Fix-and-Flip Investors Actually Paying as a Percentage of ARV in 2026?

The textbook 70% figure and real-world buying behavior are not identical, and the gap may have narrowed. According to the Q1 2026 JBREC + Kiavi Fix and Flip Survey, the national weighted average sits at roughly 67% of ARV, down slightly from a year earlier, while 37% of surveyed flippers reported being willing to pay 60% or less of ARV to acquire a property.

That average also varies meaningfully by region:

Region	Max ARV % Willing to Pay (Q1 2026)
Southwest	71%
Midwest	70%
Florida	70%
National	67%
Northeast	66%
Southeast	66%
Northwest	61%

Source: Kiavi; John Burns Research and Consulting, May 2026

A declining willingness-to-pay percentage typically signals less confidence in near-term price appreciation, while a rising percentage may signal relative optimism about resale conditions. For a fix-and-flip investor, that means the 70% rule may need to flex tighter in a cautious market and could loosen slightly in a market where comparable sales are trending up.

Average renovation costs reached $79,000 per project nationally in Q1 2026, which could directly affect the repair-cost side of the formula and could push the maximum offer lower even when ARV stays flat.

Why Does the 70% Rule Break Down in Some Deals?

The formula assumes fairly stable inputs, and real deals rarely stay that tidy. A few factors tend to push fix-and-flip investors above or below the 70% threshold.

Renovation cost inflation. Material prices rose 6.7% on average since March 2026, according to the National Association of Home Builders' Q2 2026 Remodeling Market Index, which could widen the gap between an early repair estimate and the final invoice. A fix-and-flip investor who locks in a 70% offer based on a stale repair budget may end up with far less margin than the formula suggested.
Financing and holding costs. The 30-year fixed mortgage rate averaged 6.49% as of July 9, 2026, according to Freddie Mac's Primary Mortgage Market Survey, and holding costs accumulate for as long as a property sits unsold. A longer renovation timeline or a slower resale market could quietly erode the buffer the 70% rule is designed to protect.
Exit strategy. A fix-and-flip investor planning to resell needs the formula's full buffer for selling costs and profit. An investor considering a rental exit strategy instead may find the 70% rule less relevant altogether, since rental underwriting typically centers on cash flow and long-term financing rather than resale margin.
Market price point and deal size. In May 2026, the median days on market nationally reached 49 days, per Redfin, consistent with a market where buyers, not sellers, tend to hold more negotiating leverage. Elevated foreclosure and distressed-property activity, which rose 26% year-over-year in Q1 2026 according to ATTOM's Q1 2026 U.S. Foreclosure Market Report, could also create more room to negotiate below 70% of ARV in markets with a deeper pool of motivated sellers.

Kiavi Tip: If renovation costs make up a large share of your projected ARV, build in a contingency buffer above your contractor's bid rather than adjusting the 70% threshold itself.

How Can You Use the 70% Rule Without Relying On It Blindly?

The formula works best as a starting filter that gets refined with judgment specific to the deal and the fix-and-flip investor's own track record.

If you are newer to fix-and-flip investing with limited comps experience: staying closer to 65-70% of ARV could build in extra room for estimating error on both ARV and repair costs.
If you have a strong track record of accurate renovation bids and reliable contractors: paying up to the 67-70% national range may still preserve a workable margin, based on Q1 2026 survey data.
If distressed inventory is elevated in your target market: you may have more room to negotiate below 70% of ARV, since motivated sellers often accept lower offers.
If you are planning to hold the property as a rental rather than resell it: the 70% rule may matter less than a full cash flow and DSCR analysis.

Kiavi Tip: Running your own numbers before making an offer, rather than relying on a single formula, tends to produce a more reliable outcome. A tool like the ARV and Cash to Close Estimator could help pressure-test both sides of the equation before you submit a bid.

Final Thoughts

The 70% rule remains a useful starting point for fix-and-flip investors trying to quickly screen a deal, and current data suggests real-world buying behavior sits close to that benchmark nationally. The formula works best paired with accurate comps, a realistic repair budget, and a clear exit strategy rather than used as a standalone decision tool. Fix-and-flip investors ready to test their own numbers can try Kiavi's ARV estimator tool before pricing out a quote online in just a few minutes.

Frequently Asked Questions

Frequently Asked Questions (FAQs) About the 70% Rule

Common questions about the 70% rule in real estate investing, covering ideal ARV percentages, rental and BRRRR deals, what counts as repair costs, and what happens when an offer exceeds the threshold.

The 70% rule is a formula fix-and-flip investors use to estimate the maximum price to pay for a distressed property. It states that the purchase price generally should not exceed 70% of the property's after-repair value (ARV), minus estimated repair costs. The remaining 30% is intended to cover holding costs, selling costs, financing costs, and profit, not to be treated as profit alone.

The Formula:

Maximum Allowable Offer (MAO) = (ARV × 0.70) − Estimated Repair Costs

Example:

If a property's ARV is $300,000 and it needs $40,000 in repairs, the maximum offer under the 70% rule would be approximately $170,000 (($300,000 × 0.70) − $40,000).

The 70% rule is a starting guideline, not a fixed requirement. Some real estate investors adjust the percentage based on market conditions, financing costs, or their target profit margin, so it's worth treating it as a quick screening tool rather than a final underwriting number.

There is no single correct percentage, but the JBREC + Kiavi Q1 2026 Fix-and-Flip survey data shows the national weighted average sits at 67% of ARV, with regional averages ranging from 61-71%. A fix-and-flip investor with limited experience or a less predictable renovation scope may want to stay on the lower end of that range, while an investor with tighter cost control and reliable contractors may have more flexibility.

The 70% rule was built for resale-focused fix-and-flip deals, so it applies less directly to BRRRR or rental acquisitions. A rental-focused real estate investor typically underwrites based on projected cash flow, debt service coverage, and long-term financing terms rather than a resale-based ARV formula, since the goal is holding the property rather than selling it.

Repair costs in the formula refer to the direct cost of renovation work, including materials, labor, and permits needed to bring the property to its after-repair condition. Soft costs like closing fees, financing costs, holding costs, and selling fees are not part of the formula itself and instead come out of the buffer between the maximum offer and full ARV.

The 70% rule still holds up reasonably well as a starting benchmark. The Q1 2026 JBREC + Kiavi Fix and Flip Survey found the national average sits at 67% of ARV, just below the traditional 70% figure, suggesting the rule tracks fairly closely with how fix-and-flip investors are actually pricing offers today.

Paying above 70% of ARV does not automatically make a deal unprofitable, but it typically shrinks the buffer available for renovation cost overruns, holding costs, and selling expenses. A fix-and-flip investor who pays closer to ARV may need unusually accurate cost estimates and a fast resale timeline to protect their margin.