Lease Year Gap Recovery Calculator

Partial years require prorated CAM recovery by days or months.

Full annual CAM

Active days in year

Total days in year

Prorated recovery

$59,178

Proration factor

0.493%

Daily CAM

$328.77

How the math works

Factor = active days / total days. Prorated = full annual × factor.

180 / 365 = 49.3% factor. $120k × 49.3% = $59.2k prorated recovery. Daily = $328.

Editorial noteMaintained by EveryCalc - Reviewed June 2026

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 Lease Year Gap Recovery Calculator is built to give a quick, browser-based estimate for lease year gap recovery. Partial years require prorated CAM recovery by days or months. 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 lease year gap recovery 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 lease year gap recovery 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 full annual CAM for tenant.
Enter active days in year.
Enter total days in year.
Read prorated recovery.

Frequently Asked Questions

Commencement vs termination?

Commencement: tenant begins mid-year, owes CAM from rent commencement date. Termination: tenant exits mid-year, owes CAM through last day. Proration typically by days (365-day basis) for accuracy; some leases use 30-day months for simplicity.

What's included in proration?

Fixed CAM (annual flat amount): prorate directly. Variable CAM (actual expenses): recover actual expense × pro-rata share for the partial period. Reconciliation happens within 90 days of year-end.

Typical disputes?

Base year calculation when lease commences mid-year — does year 1 expense count for that partial year or the first full year? Holdover periods — does tenant owe holdover CAM at full or partial rate? Spell out in lease; standard language ranges widely.