Rent is the largest fixed cost for most physical businesses. Get it wrong and no amount of great execution will save you. This is the framework for understanding whether a rent is actually affordable before you sign.
The rent-to-revenue ratio: the one number that matters most
Rent affordability is measured as a percentage of revenue, not as a nominal amount. A $4,000/month rent is affordable for a business doing $50,000/month in revenue (8%) and dangerous for one doing $25,000/month (16%). The percentage is the metric — not the dollar amount.
Under 10%
Excellent — strong buffer for slow periods
10–12%
Healthy — industry standard for most categories
13–15%
Caution — manageable but limited buffer
Over 15%
High risk — very difficult to sustain
How to calculate the rent affordability test
Take the monthly rent. Divide it by 0.12 (for a 12% target ratio). The result is the monthly revenue you need to make the rent affordable. Then work backwards: divide that monthly revenue by your average transaction value, then by your estimated trading days per month. The result is your required daily transaction count.
The rent affordability calculation
Monthly rent: $4,800 Target ratio: 12% Required monthly revenue: $4,800 ÷ 0.12 = $40,000 Average transaction value: $12 Trading days: 26 Required daily transactions: $40,000 ÷ $12 ÷ 26 = 128 transactions per day Question: will this location generate 128 transactions per day?
Industry benchmarks by business type
What to do when the rent is too high
Three options when rent exceeds 15% of projected revenue: negotiate the rent down to a viable level; find a different location with lower rent; or revise your revenue model to identify whether there is a realistic path to higher transactions per day. If none of these paths is viable, the site is not viable.
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