Free tools for commercial leases.
Work out a CAM reconciliation, a cap, a gross-up, a triple net rent or next year's estimates, and download the workbooks. Everything runs in your browser: nothing you type is sent to us, and there's nothing to sign up for.
- Calculators
- 5
- Templates
- 4
- Sign-up or email
- None
- Your numbers
- Stay in your browser
Calculators
- Calculator
CAM reconciliation calculator
Each tenant's share of a year's CAM, taxes and insurance, with gross-up, caps, base years, admin fees and partial years, and a statement to print.
Open the calculator - Calculator
CAM cap calculator
Cumulative, non-cumulative and compounding caps side by side, year by year, with what each one saves the tenant.
Open the calculator - Calculator
Operating expense gross-up calculator
Gross up variable expenses to 95% or 100% occupancy, and see what grossing up the base year does to the increase.
Open the calculator - Calculator
NNN lease calculator
What a rent quoted per square foot NNN costs by the month and the year, with bumps, free rent and a table for the term.
Open the calculator - Calculator
Pro-rata share calculator
A tenant's share under each denominator a lease can use, and what each one does to the dollars.
Open the calculator
Templates and downloads
- Template
CAM reconciliation Excel template
A free workbook with the formulas built in: expenses, tenants, caps, gross-up, each tenant's balance and a statement letter.
Get the template - Template
Commercial property budget and CAM estimates
Next year's operating budget by month and each tenant's monthly CAM estimate, with the room left under each cap. Free Excel template.
Get the template - Template
Commercial lease abstract template
Every term worth abstracting from a commercial lease, CAM terms included, with a page and quote column for each answer. Excel and print.
Get the template - Template
Commercial rent roll template
One row per suite with dates, rent, next increase and deposit, in columns that import straight into Cornerhold. Excel and CSV.
Get the template
California
- Guide
California and Los Angeles landlord guide
Dates, official sources and short guides for owners of commercial property in California and Los Angeles.
Read it - Guide
California and Los Angeles compliance calendar
Every yearly deadline for a commercial owner in Los Angeles, with an .ics file for your calendar app.
Read it - Guide
Official sources for California and Los Angeles landlords
The statutes and agency pages behind our California guides, grouped by who publishes them, each dated.
Read it
How these tools do the math.
Each calculator shows its formulas and works a full example on its page, so you can check it by hand.
- Money is figured to the cent, rounded half up once per amount, and every statement adds up to its total.
- Shares, rates and occupancy are kept exact until the last step, so a result doesn't drift with rounding.
- The calculators run in your browser. Nothing you type is sent to us or saved; closing the page clears it.
- The downloads are plain .xlsx, .csv and .ics files, with any formulas in view. No email, no account.
- These are general tools, not legal, tax or accounting advice. Your lease controls. Cornerhold does the same work from your own leases and invoices.
Set up your first property.
Owner and Owner Plus start with 14 days free, without a card. Bring a rent roll, QuickBooks files or lease PDFs, and you can set up your portfolio in about ten minutes. For a large portfolio, or if you want our team to move you in, ask about Enterprise.