North Carolina Commercial Lease Cost Calculator
ANA›Life Services Authority›National Calculator Authority›North Carolina Commercial Lease Cost Calculator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
North Carolina Commercial Lease Cost Calculator
Estimate the total cost of a commercial lease in North Carolina, including base rent, triple-net (NNN) expenses, applicable sales tax on certain lease types, and annual rent escalations over the full lease term.
Rentable Square Footage (sq ft)
Base Rent Rate ($ per sq ft per year)
Lease Type
Gross Lease (landlord pays operating expenses) Triple Net / NNN (tenant pays operating expenses) Modified Gross (shared expenses)
NNN / Operating Expenses ($ per sq ft per year)
Tenant Share of Operating Expenses ($ per sq ft per year)
Lease Term (years)
Annual Rent Escalation Rate (%)
Free Rent / Abatement Period (months)
Tenant Improvement Allowance ($ total)
Security Deposit (months of base rent)
Apply NC Sales Tax on Lease? (applicable to certain short-term/retail leases)
No Yes — 4.75% State + 2% Local = 6.75%
Calculate
(function() { var leaseType = document.getElementById('nor-lease-type'); var nnnRow = document.getElementById('nor-nnn-row'); var modRow = document.getElementById('nor-modified-row');
leaseType.addEventListener('change', function() { var v = this.value; nnnRow.style.display = (v === 'nnn') ? '' : 'none'; modRow.style.display = (v === 'modified') ? '' : 'none'; if (v === 'gross') { document.getElementById('nor-nnn').value = ''; document.getElementById('nor-modified').value = ''; } }); })();
window.norCalc = function() { var errors = [];
var sqft = parseFloat(document.getElementById('nor-sqft').value); var baseRent = parseFloat(document.getElementById('nor-base-rent').value); var leaseType = document.getElementById('nor-lease-type').value; var term = parseFloat(document.getElementById('nor-term').value); var escalation = parseFloat(document.getElementById('nor-escalation').value); var freeRent = parseFloat(document.getElementById('nor-free-rent').value) || 0; var ti = parseFloat(document.getElementById('nor-ti').value) || 0; var secMonths = parseFloat(document.getElementById('nor-security').value) || 0; var salesTax = document.getElementById('nor-sales-tax').value;
var nnnRate = 0; var modifiedRate = 0;
if (isNaN(sqft) || sqft 20) errors.push("Annual escalation rate must be between 0% and 20%."); if (freeRent = term * 12) errors.push("Free rent period cannot exceed or equal the full lease term.");
if (leaseType === 'nnn') { nnnRate = parseFloat(document.getElementById('nor-nnn').value); if (isNaN(nnnRate) || nnnRate 0) { resultDiv.innerHTML = 'Please fix the following:' + errors.map(function(e){ return ''; }).join('') + ''; return; }
/ ── Core Calculations ── /
// Annual base rent per year with escalation (compound) // Year i (1-indexed): baseRentYear_i = baseRent * sqft * (1 + escalation/100)^(i-1) // Operating expenses do NOT escalate (fixed NNN rate) — conservative assumption
var escalationRate = escalation / 100; var taxRate = (salesTax === 'yes') ? 0.0675 : 0.0;
// Monthly base rent in year 1 var monthlyBaseRentY1 = (baseRent * sqft) / 12;
// Security deposit (based on year-1 monthly base rent) var securityDeposit = monthlyBaseRentY1 * secMonths;
// Annual operating expense cost (constant across years) var annualOpEx = 0; if (leaseType === 'nnn') annualOpEx = nnnRate * sqft; if (leaseType === 'modified') annualOpEx = modifiedRate * sqft;
// Build year-by-year schedule var schedule = []; var totalBaseRent = 0; var totalOpEx = 0; var totalTax = 0; var totalRentPaid = 0; // base + opex + tax, after free rent
// Free rent: applied to base rent only in first N months var freeRentMonthsRemaining = freeRent;
for (var yr = 1; yr ' + 'Year ' + r.year + (r.freeMonths > 0 ? ' (' + r.freeMonths + ' mo free)' : '') + '' + '' + fmt(r.annualBase) + '' + '' + fmt(r.paidBase) + '' + '' + fmt(r.opEx) + '' + '' + fmt(r.tax) + '' + '' + fmt(r.yearTotal) + '' + ''; }).join('');
var leaseTypeLabel = leaseType === 'nnn' ? 'Triple Net (NNN)' : leaseType === 'modified' ? 'Modified Gross' : 'Gross';
resultDiv.innerHTML = '### ✓ Lease Cost Summary ' +
'' + 'Key Inputs' + 'Rentable Area' + sqft.toLocaleString() + ' sq ft' + 'Lease Type' + leaseTypeLabel + '' + 'Base Rent (Year 1)' + fmtPSF(baseRent) + ' (' + fmt(baseRent * sqft / 12) + '/mo)' + (leaseType === 'nnn' ? 'NNN Expenses' + fmtPSF(nnnRate) + ' (' + fmt(nnnRate * sqft / 12) + '/mo)' : '') + (leaseType === 'modified' ? 'Tenant OpEx Share' + fmtPSF(modifiedRate) + ' (' + fmt(modifiedRate * sqft / 12) + '/mo)' : '') + 'Lease Term' + term + ' year' + (term > 1 ? 's' : '') + ' (' + totalMonths + ' months)' + 'Annual Escalation' + escalation.toFixed(2) + '%' + 'Free Rent Period' + freeRent + ' month' + (freeRent !== 1 ? 's' : '') + '' + 'Sales Tax' + (salesTax === 'yes' ? '6.75% (NC State 4.75% + Local 2%)' : 'Not applicable') + '' + '' +
'' + 'Cost Summary' + 'Total Base Rent Paid' + fmt(totalBaseRent) + '' + 'Total Operating Expenses' + fmt(totalOpEx) + '' + (taxRate > 0 ? 'Total Sales Tax' + fmt(totalTax) + '' : '') + 'Security Deposit (upfront)' + fmt(securityDeposit) + '' + 'Tenant Improvement Allowance (credit)(' + fmt(ti) + ')' + 'Net Total Cost of Occupancy' + fmt(grandTotal) + '' + '' +
'' + 'Effective Rent Metrics' + 'Net Effective Monthly Base Rent' + fmt(netEffectiveMonthly) + '/mo' + 'Net Effective Annual Base Rent (PSF)' + fmtPSF(netEffectiveAnnualPSF) + '' + 'Average Monthly All-In Cost' + fmt(totalRentPaid / totalMonths) + '/mo' + '' +
'#### Year-by-Year Breakdown ' + '' + '' + '' + 'Period' + 'Gross Annual Base' + 'Base Rent Paid' + 'Operating Expenses' + 'Sales Tax' + 'Year Total' + '' + '' + tableRows + '' + '' + 'Total' + '' + '' + fmt(totalBaseRent) + '' + '' + fmt(totalOpEx) + '' + '' + fmt(totalTax) + '' + '' + fmt(totalRentPaid) + '' + '' + ''; };
#### Formulas Used
Annual Base Rent (Year i): Annual Basei = Base Rent Rate ($/sf/yr) × Rentable SF × (1 + Escalation Rate)(i−1)
Base Rent Paid (Year i, accounting for free rent): Paid Basei = (Annual Basei / 12) × (12 − Free Rent Months in Year i)
Annual Operating Expenses (NNN/Modified Gross): OpExi = NNN Rate ($/sf/yr) × Rentable SF [constant across all years]
Sales Tax (if applicable): Taxi = (Paid Basei + OpExi) × 6.75% (NC State rate 4.75% + typical local rate 2.00%)
Year Total: Year Totali = Paid Basei + OpExi + Taxi
Security Deposit: Security Deposit = (Base Rent Rate × SF / 12) × Security Deposit Months
Net Total Cost of Occupancy: Grand Total = Σ Year Totali + Security Deposit − Tenant Improvement Allowance
Net Effective Annual Base Rent (PSF): Net Effective PSF = (Total Base Rent Paid / Total Lease Months × 12) / Rentable SF
#### Assumptions & References
- Base rent escalation is compounded annually using the formula Rate × (1 + g)n−1, consistent with standard commercial lease practice.
- North Carolina imposes a 4.75% state sales tax on certain commercial lease payments (e.g., short-term rentals, some retail leases). Local jurisdictions add up to 2.00%, for a combined rate of up to 6.75%. Consult a tax professional to confirm applicability — most long-term commercial leases are exempt. Reference: N.C. Gen. Stat. § 105-164.4.
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