Commercial rent pressure
Commercial rent burden calculator
How much of revenue should commercial rent take? Rent burden shows how much expected revenue is absorbed by rent before staff, stock, utilities, service charge, and quieter trading months are considered.
If you are asking whether a cafe, salon, restaurant, or shop can carry the lease, this is the first screen. The full commercial check goes further and tests opening cash, break-even customers, and downside trading.
Quick screen
Annual rent
£60,000
Monthly rent
£5,000
Monthly revenue
£24,960
Rent burden
20%
A 20% rent burden is high pressure in this rough screen. The full check should test break-even customers, upfront cash, downside revenue, and six-month survival before signing.
Formula
What commercial rent burden means
Commercial rent burden shows how much estimated revenue is absorbed by rent before staff, rates, utilities, insurance, stock, tax, and quieter trading periods are considered.
Rent burden = monthly rent ÷ monthly revenue × 100
If annual rent is £60,000, monthly rent is £5,000. If estimated monthly revenue is £24,960, rent burden is about 20%. That means rent absorbs roughly one fifth of expected revenue before the rest of the cost base is covered.
Frequently asked questions
Commercial rent burden FAQs
Practical answers for operators checking whether rent is absorbing too much of the business case.
What is commercial rent burden?
Commercial rent burden is monthly rent divided by estimated monthly revenue, multiplied by 100. It shows how much expected revenue is absorbed by rent before other costs are considered.
How is rent burden different from market rent?
Market rent is about what the unit might achieve in the market. Rent burden is about what the business can actually carry once the rest of the cost base is included.
When is rent burden a warning sign?
There is no universal rule, but a heavier burden needs stronger evidence and better margins. If rent absorbs too much revenue, the site needs deeper checks before you rely on it.
What else should I check alongside rent burden?
Break-even customers, staff costs, rates, utilities, fit-out, opening cash, downside revenue, and lease terms all need to be checked as well.
Interpretation
Rough rent burden screening ranges
These bands are not rules. They are a starting point for deciding whether the site deserves deeper pressure-testing.
Lower burden
More room for the rest of the cost base
A lighter burden may leave more room for staff, rates, utilities, stock, service charge, and weaker months. The rest of the lease still matters.
Mid range
Can work if the margins are real
This can be workable for some sites, but only if revenue, gross margin, staffing, and utility assumptions are sensible.
Higher burden
Needs stronger evidence
A heavier burden can still work, but it usually needs better margins, better lease terms, or a stronger trading base to support it.
Very high burden
Treat as a warning sign
When rent absorbs too much revenue, the site needs deeper testing before you rely on it, especially if fit-out or deposits are large.
Operator examples
Rent burden reads differently for each operator.
The same percentage can mean very different pressure once the trading model is stripped back to staff, margins, and quiet periods.
Cafe
Morning and lunch peaks can make rent look fine on a weekly average, but slower afternoons or quieter weekdays still need coverage. The rent burden should be checked against staffing, coffee margin, waste, and opening cash.
Restaurant
Covers per service, kitchen staff, food cost, and quieter trading periods can make rent feel heavier than the headline number suggests. A good service night does not automatically carry a full month of rent pressure.
Salon
Chair utilisation, treatment-room bookings, no-shows, and slower ramp-up can all reduce the room available for rent. The rent burden should sit alongside staffing, water, utilities, and booking consistency.
Why it matters
High rent burden can make a good-looking site fragile.
A busy-looking unit can still struggle if fixed rent absorbs too much revenue. The danger is not just the rent level, but the pressure rent creates when trading is weaker than expected.
Staff, rates, and utilities
Rent is only one fixed cost. A site with acceptable rent burden can still fail if staff costs, business rates, utilities, insurance, or service charge are incomplete.
Break-even customers
Rent burden shows pressure as a percentage. Break-even customers translate that pressure into a daily trading target the operator can judge.
Fit-out and opening cash
A site can look workable month to month but still be fragile if deposits, fit-out, legal fees, stock, and setup costs use too much cash before opening.
Downside trading
The full check tests what happens if revenue is weaker than expected and whether the site can survive six difficult early months.
What to verify before relying on rent burden
- Realistic monthly revenue
- VAT treatment where relevant
- Service charge
- Business rates
- Staffing
- Stock or cost of sales
- Utilities
- Opening cash
- Seasonality
- Lease terms
Where rent burden fits in the funnel
Commercial rent affordability calculator
Check whether the rent still fits after costs and trading pressure are added.
Commercial lease viability check
Pressure-test rent, opening cash, downside trading, and lease survival before signing.
Sample commercial viability file
See the £49 decision memo structure before unlocking it.
Commercial business rates before signing
Check how rates change the monthly cost base before you commit.
Full viability check
Rent burden is only the first screen.
YieldLens UK goes further by testing break-even customers, monthly cost base, upfront cash needed, cash after opening, downside revenue, monthly burn, and six-month survival.
Next step
Pressure-test the full lease, not just the rent.
The full commercial check connects rent burden to break-even customers, opening cash, downside trading, and six-month survival.
Important disclaimer
YieldLens UK provides indicative decision-support only. It is not financial advice, legal advice, tax advice, mortgage advice, a valuation, a RICS valuation, or a substitute for professional due diligence.