CSP

Real Estate

Commercial Sublease Profit Calculator

Estimate sublease revenue, operating income, monthly cash profit, contribution per occupied unit, and break-even occupancy.

Occupied or used units per month-
Gross monthly revenue-
Variable monthly cost-
Booking or platform fees-
Operating income before debt and reserve-
Monthly cash profit after debt and reserve-
Annualized cash profit-
Contribution per occupied unit-
Occupied units required for cash break-even-
Break-even utilization or occupancy-
Cash profit margin-

Decision view

Commercial sublease area and obligation stack

Commercial sublease area and obligation stackSubleased and vacant inventory are layered above master-lease cost and tail exposure.
Exact scenario comparisonExpected utilization or occupancy (%) changes while all other entered assumptions remain constant.
Expected utilization or occupancy (%)Occupied or used units per monthGross monthly revenueVariable monthly costBooking or platform feesOperating income before debt and reserveMonthly cash profit after debt and reserveAnnualized cash profitContribution per occupied unitOccupied units required for cash break-evenBreak-even utilization or occupancyCash profit margin

How to use Commercial Sublease Profit Calculator

  1. Use legally subleasable area or days under the master lease.
  2. Reconcile base rent, operating expense, utilities, and tenant improvements.
  3. Check consent, use, term, and restoration clauses.

Calculator guide

Understanding Commercial Sublease Profit Calculator

Commercial sublease profit depends on leasable inventory, occupied use, sublease rate, pass-through costs, brokerage, master rent, debt, and reserve.

Term alignment matters Monthly profit can hide an uncovered tail.
Area definitions differ Usable and rentable area are not interchangeable.
Consent governs feasibility Arithmetic does not authorize a sublease.

Calculation method

How the calculation works

Translate available commercial sublease inventory and occupancy into used units, gross revenue, variable cost, platform fees, operating income, cash profit, break-even occupancy, reserve funding, and margin. Apply occupancy to leasable units, deduct variable and platform-like fees, then cover master-lease and other fixed obligations.

Lease stack

Layer subtenant income over the master obligation

The visual separates subleased area, vacant area, subrent, pass-throughs, master rent, and tail exposure.

Area strip Leasable inventory and vacancy.
Subrent layer Revenue from the subtenant.
Master layer Continuing primary obligation.
Tail band Time after sublease expiry.

Worked situations

Practical examples

  • A profitable monthly spread may not recover brokerage and build-out.
  • A sublease ending before the master lease creates tail exposure.
  • Operating-expense pass-throughs can reset independently of subrent.

Better inputs

Useful tips

  • Model free rent and commissions over the actual term.
  • Separate rentable area from usable area.
  • Maintain a scenario for vacancy after sublease expiry.

Before relying on the result

Limitations and common mistakes

  • Lease timing, escalation, concessions, commissions, improvements, and restoration are simplified.
  • One occupancy and sublease rate are used.
  • Legal consent and accounting treatment require professional review.

Reference

Key terms

Master lease
Primary lease obligation retained by the sublessor.
Sublease spread
Subrent less allocated master-lease and operating burden.
Tail exposure
Master-lease cost remaining after the sublease ends.

Important note

Calculated from the entered property and financing assumptions. It does not replace lender, appraisal, legal, tax, or investment review.

Frequently asked questions

Does profit include brokerage and build-out?

Only if represented in the entered cost assumptions.

Should free rent reduce the rate?

Use an effective rate over the analyzed term.

Does this confirm sublease rights?

No.