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Cotenancy Rent Abatement Calculator
Cotenancy clauses trigger rent abatement. This calculator sizes the NOI hit.
Total abatement cost
$745,200
Base rent lost
$648,000
CAM lost
$97,200
How the math works
Rent lost = tenants × avg rent × abatement % × months/12. CAM lost = tenants × CAM × (1 − collected %) × months/12. Sum for total.
18 tenants × $72k × 50% × 1 yr = $648k rent. CAM $18k × 30% × 18 tenants = $97k CAM. Total ~$745k — material hit that drives cotenancy negotiation leverage.
EveryCalc calculators are designed for fast, practical estimates with transparent inputs and no required account. We use plain formulas, visible assumptions, and related tools so visitors can check the result from more than one angle.
Results are informational only. For financial, tax, legal, medical, construction, or other high-impact decisions, verify the output against primary sources or a qualified professional.
Learn more about our review process on the EveryCalc methodology page.
How this calculator works
What this page estimates
This Cotenancy Rent Abatement Calculator is built to give a quick, browser-based estimate for cotenancy rent abatement. Cotenancy clauses trigger rent abatement. This calculator sizes the NOI hit. The inputs stay on the page during normal use, and the result should be treated as an estimate for planning, comparison, or education rather than professional advice.
Calculation approach
The calculator applies the standard relationship implied by the inputs, then formats the answer so it can be checked and reused. For finance tools, the most important step is using consistent units, rates, time periods, and assumptions before comparing the result with another calculator or outside quote.
Example workflow
For example, start with a realistic value you already know, change one input at a time, and watch how the answer moves. That makes it easier to tell whether the result is being driven by the main amount, the rate, the time period, or a unit conversion.
Practical checks
- Use current, real-world numbers when the result affects money, health, tax, or legal decisions.
- Run a low, base, and high case when the inputs are estimates.
- Check the related calculators below when the next decision depends on a different assumption.
How to interpret the cotenancy rent abatement result
Best use
Use the result as a planning number for comparing payments, rates, returns, tax reserves, or cash-flow choices before you request a quote or make a commitment.
Cross-check
Compare the answer with the contract, lender estimate, tax form, brokerage statement, payroll record, or invoice that will control the real-world outcome.
Watch for
Do not rely on a single optimistic rate, return, or fee assumption. Money pages work best when you run low, base, and high cases and keep professional advice separate from the estimate.
This page belongs to the Finance calculator library, so the answer should be read in the context of the decision you are modeling rather than as a universal rule.
Before relying on this cotenancy rent abatement estimate
Most calculator mistakes come from the inputs, not the arithmetic. Use this short audit before you reuse the answer in a spreadsheet, quote, application, or important conversation.
Confirm source numbers
Match balances, rates, fees, taxes, income, and payment dates against the lender quote, payroll record, tax form, statement, invoice, or contract.
Separate cash flow from total cost
A lower monthly payment can still cost more over time if fees, interest, taxes, or a longer term are hidden in the structure.
Run conservative cases
Test at least one higher-cost or lower-return case before using the output for a purchase, refinance, investment, loan, or tax decision.
Rerun this page when the rate, price, term, fee, tax rule, income, expense, or expected holding period changes.
How to Use
- Enter number of triggered tenants.
- Enter average base rent per tenant.
- Enter abatement %.
- Enter abatement months.
- Enter % of CAM still owed.
- Enter CAM per tenant.
- Read total abatement cost.
Frequently Asked Questions
How do cotenancy clauses work?
Retail leases routinely allow small-shop tenants to reduce rent (to 50% of base, or to a % of sales) when specific co-tenants — usually the anchor or a threshold % of the GLA — go dark. Triggers vary: anchor-specific, occupancy-threshold, and named-cotenant are the three common forms.
What rent typically abates?
Common structures: 50% base rent reduction, alternate rent tied to sales (3-6% of gross), or full rent abatement after cure period (typically 6-12 months). CAM and taxes often remain owed at a reduced pro-rata. Severe abatement can go 18-24 months before cotenant replacement is required.
Why model it?
Lenders and buyers stress-test cotenancy risk on retail. A shopping center with 20 small shops at $35/SF paying 50% abatement for 18 months can lose $3-5M NOI — often bigger than the anchor rent itself. Cotenancy exposure is the key difference between trading at 6% vs 8% cap rate.
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