Free calculator

Lease Cost Calculator

See the true total occupancy cost of a commercial let — rent, business rates, service charge and any rent-free period — spread across the full lease term.

sq ft
£
£
£
months
years
Gross annual occupancy cost
£125,500
£10,458 per month · £25.10 per sq ft all-in
Annual rent
£100,000
Rent-free saving
−£25,000
Total over 10-yr term
£1,230,000
Effective cost / year
£123,000 (£24.60/sq ft)

Effective figures spread the rent-free saving across the full term. Estimate only — confirm exact figures with the agent / VOA / your solicitor.

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Common questions

What is total occupancy cost?
Total occupancy cost is the full annual cost of occupying commercial premises — not just the rent. It adds business rates and the service charge to the rent, giving a true all-in figure you can compare between properties.
How does a rent-free period affect the cost?
A rent-free period reduces the rent you pay (rates and service charge usually still apply). This calculator spreads the rent-free saving across the whole lease term to show your effective annual cost — a useful way to compare deals with different incentives.
What is cost per square foot all-in?
Cost per square foot all-in divides the total annual cost (rent plus rates plus service charge) by the floor area. It lets you compare properties of different sizes on a like-for-like basis.
Are business rates and service charge always extra?
On most commercial leases, yes — rent, business rates and service charge are billed separately, so the rent quoted is only part of the picture. Always ask the agent for the rates payable and the current service charge before you commit.