Finance category
Mortgage, loan, investing, tax, and money calculators.
Admin Fee Stacking Calculator
Multiple admin fee layers can add 20%+ to tenant CAM bills beyond raw expenses.
Tenant fully-loaded billing
$144,900
Total loaded CAM
$1,811,250
Effective markup vs raw
0.21%
How the math works
Stacked: raw × (1 + first) × (1 + second). Markup = (loaded − raw) / raw.
$1.5M × 1.15 × 1.05 = $1.81M (20.75% markup). × 8% pro-rata = $145k tenant CAM bill.
How to Use
- Enter raw CAM expenses.
- Enter first-tier admin fee %.
- Enter second-tier admin fee %.
- Enter tenant pro-rata %.
- Read fully-loaded CAM billing.
Frequently Asked Questions
Admin fee norms?
Standard industry: 10-15% admin fee on controllable CAM, 0-5% on non-controllable. Aggressive: 15% on all CAM, stacked with a 5% management fee on total CAM, producing effective 20%+ mark-up. Tenants push hard to cap these at 10% of controllable only.
Stack mechanics?
Raw CAM × (1 + first admin) = sub-total. Sub-total × (1 + mgmt fee) = final CAM. Tenant share = final × pro-rata. Easy to miss in lease reviews. Institutional tenants audit and often recover 10-20% when caught.
Market vs institutional?
Markets like NYC, Boston, Los Angeles: aggressive admin fee stacking is common. Secondary markets: more restrained. Institutional tenants (credit-rated) negotiate capped admin and audit rights. Small tenants usually accept the lease as written and overpay.
Related Calculators
More Finance Calculators
Browse all finance →AI Cost Calculator
Compare token costs across OpenAI, Anthropic, and Google AI models. Calculate monthly API spending for GPT-4o, Claude, Gemini, and more.
Tip Calculator
Calculate the perfect tip and split the bill between friends. Choose preset percentages or enter a custom tip amount.
Bill Splitter Calculator
Split an uneven restaurant bill by item, divide tax and tip proportionally, and see exactly who owes whom.
Discount Calculator
Calculate sale price, discount amount, stacked discounts, sales tax, and total savings for any markdown.
Gas Mileage Calculator
Calculate MPG or km/L, estimate trip fuel cost, and compare annual fuel expenses between two vehicles.
Sales Tax Calculator
Add sales tax to a price, reverse-calculate the pre-tax amount from a total, and estimate tax for multiple items on one receipt.
Keep exploring
Next steps in Finance
Previous calculator
Adjustable-Rate Mortgage (ARM) Calculator
Model an ARM intro payment, the payment after the first adjustment, and the worst-case payment at the lifetime rate cap.
Next calculator
ADU Cost Calculator
Accessory Dwelling Unit (ADU) construction cost — detached, attached, or garage-conversion — by sqft and scope.