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1% Rule Real Estate Calculator

Screen rental properties instantly to see if they pass the 1% Rule for positive monthly cash flow.

Disclaimer: All calculations and figures are provided for informational purposes only and without warranty. This does not constitute legal, tax, or financial advice. Liability for any decisions made based on this calculator is disclaimed.
Scenarios:

1. Purchase Price, Rent & Total Cost

Total Acquisition Cost: $253,700.00
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$/mo.
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2. Operating Expenses & Mortgage Terms

Gross Yield: 10.09 % (Faktor: 9.9x)
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💡 The 1% Rule Real Estate Formula: For a purchase price of $220,000, the 1% Rule targets a monthly cold rent of $2,200/mo. (1.00%). Your actual rent of $1,850/mo. yields an actual ratio of 0.84% (Below 1% target ⚠️). Relative to total acquisition cost ($253,700 including closing and renovation), the ratio is 0.73%. Deducting opex (-$463) and debt service (-$851) leaves an estimated pre-tax cashflow of +$537.00/mo..

Actual Rent-to-Price Ratio
0.84 %

Estimated monthly cashflow: +$537.00/mo. ($6,442.00/yr.).

Screening Tier:🟢 Solid Balanced Yield (≥ 0.75%)
1% Target Rent:$2,200.00/mo.
Gross Multiplier:9.9x

Benchmark Comparison (0.5% vs. 0.8% vs. 1.0% Rule on Total Cost)

Rule BenchmarkTarget %Required RentCurrent DeltaStatus
0.5% Rule (Prime A-Locations)0.5 % $1,269.00/mo.+$582.00Met ✅
0.8% Rule (Solid B-Locations)0.8 % $2,030.00/mo.-$180.00Missed ❌
1.0% Rule (Standard Cashflow Target)1 % $2,537.00/mo.-$687.00Missed ❌
1.5% Rule (High-Yield Special Property)1.5 % $3,806.00/mo.-$1,955.00Missed ❌
Gross Yield10.09 % (9.9x multiplier)
Net Initial Yield6.56 % on total cost
Debt Service -$851.00/mo. (3.8% Z. + 2% T.)
Net Cashflow+$537.00/mo. (pre-tax)

The 1% Rule in Real Estate: Deal Screening, Rent-to-Price Ratios, and Cashflow Verification

In residential real estate investing, the 1% Rule represents the quintessential back-of-the-napkin screening metric for filtering potential rental acquisitions. Prior to committing time and resources to in-depth underwriting and formal inspections, comparing monthly cold rent directly against purchase price immediately signals whether an asset can generate self-sustaining cashflow after mortgage debt service and operational reserves. Applying the rule against total all-in capital deployed (purchase price + closing friction + renovation) protects investors against hidden cashflow traps.

1. Foundational 1% Rule Screening Equations

  • Rent-to-Price Ratio: (Monthly Cold Rent / Purchase Price) × 100
  • Rent-to-Total-Cost Ratio: (Monthly Cold Rent / Total All-in Cost) × 100
  • 1% Target Monthly Rent: Purchase Price × 0.01
  • Gross Annual Yield: (Annual Gross Rent / Purchase Price) × 100 = Ratio % × 12

2. Actionable Guidelines for Real Estate Investors

Optimize screening efficiency by disqualifying properties yielding below 0.6% when executing pure cashflow strategies, factoring 20% to 30% operational expense reserves to account for vacancy and capital expenditures, and identifying value-add renovation opportunities to push sub-1% acquisitions into compliant cashflow generators.

Frequently Asked Questions (FAQ)

What is the 1% Rule in real estate investing?▼

The 1% Rule is a rapid screening benchmark: it states that a rental property's gross monthly rent should equal at least 1.0% of its purchase price (or total all-in acquisition cost). For a $200,000 property, target monthly rent is $2,000.

How does the 1% Rule relate to Annual Gross Rental Yield?▼

The 1% Rule measures monthly yield (`Monthly Rent / Price`), while gross rental yield measures annual income (`Annual Rent / Price × 100`). A property that perfectly meets the 1% Rule achieves an annual gross yield of exactly 12.0% (`1.0% × 12 months`).

Should the 1% Rule evaluate base purchase price or total all-in cost?▼

Experienced investors apply the rule to total all-in acquisition cost (Purchase Price + Closing Costs + Upfront Renovation Budget). This ensures the investment sustains positive cashflow after accounting for initial capital expenditure.

Is the 1% Rule realistic in prime coastal or major metropolitan markets?▼

In high-cost prime metropolitan areas (Tier 1 cities), rent-to-price ratios typically hover between 0.4% and 0.6% (gross yields of 4.8% to 7.2%). The classic 1% Rule is most commonly achieved in secondary markets, tertiary cashflow regions, small multi-family units, or specialized co-living setups.

Does hitting the 1% Rule guarantee positive monthly cash flow?▼

In almost all cases, yes. At a 1.0% monthly rent ratio, rental income comfortably covers debt service (even at 6% to 7% mortgage interest) and standard operating expense reserves (25% to 30%), leaving healthy monthly net cashflow.

What is the 2% Rule and the 50% Rule in property screening?▼

The 2% Rule targets high-yield low-cost markets requiring 2.0% monthly rent (24% gross yield). The 50% Rule is a standard guideline assuming roughly 50% of gross rental income will be consumed by non-mortgage operating expenses, vacancy, and capital reserves.

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