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Letter of Credit Calculator

Letters of credit (LOCs) are bank-issued unconditional payment guarantees that commercial landlords can draw on if tenants default. They're common in office, retail, and industrial leases for early-stage or credit-light tenants. This calculator sizes the LOC amount based on rent coverage and totals the annual and lifetime cost — issuance plus standby fees.

$

Often 6-18 months

%

Annual

%

Letter of credit amount

$144,000

Annual cost to tenant

$2,880

Total cost over LOC term

$14,400

Issuance fee / yr

$2,160

Credit-use fee / yr

$720

How the math works

Letters of credit (LOCs) are bank-issued unconditional payment guarantees that landlords can draw on if tenants default. Common in commercial leases for large-format or credit-light tenants — typically sized at 6-18 months of rent.

LOCs are off-balance-sheet for the tenant but cost ~1.5-3% per year (issuance + standby fees) and tie up borrowing capacity at their bank.

How to Use

  1. Enter monthly base rent and the number of months the LOC covers.
  2. Enter the bank's issuance fee % (typically 1-2% annually).
  3. Enter the standby credit use fee % (often 0.25-0.75% annually).
  4. Enter LOC term in years.
  5. Read total LOC amount, annual cost, and lifetime cost.

Frequently Asked Questions

LOC vs cash security deposit?

LOC is off-balance-sheet for tenant; cash deposits aren't. LOCs cost 1-3%/year — cheaper than tying up cash if tenant earns higher returns. But LOC ties up borrowing capacity at the issuing bank.

Burn-down LOC?

Many leases let LOC step down each year as tenant proves payment history (e.g., 12 months → 9 → 6 → 3 over years 1-4). Negotiate this hard.

Draw mechanics?

Landlord submits a sight draft to the issuing bank with statement of breach. Bank pays within 5-10 business days regardless of tenant dispute — that's the unconditional aspect.

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