CAM Audit Software for Commercial Landlords
Looking for CAM audit software? CapVeri runs your CAM reconciliation so the numbers hold up to a tenant audit. It checks gross-up calculations, enforces expense caps, validates pro-rata denominators, and reviews non-recoverable expenses from your Yardi or MRI export. You get a tenant-ready statement in minutes, not weeks.
Definition
A CAM audit is a review of a landlord's CAM charges against the general ledger, lease exclusions, and calculation method. It verifies gross-up accuracy, cap enforcement, pro-rata denominators, and expense pool composition. Tenants can request one under lease audit rights. Landlords can also run one proactively before issuing statements.
By Angel Campa, Founder, CapVeri · Last updated: March 2026
What CAM Auditors Look For
Professional tenant auditors follow a systematic checklist. These are the six areas that produce the most findings.
Expense Pool Screening
Verify that non-recoverable items (CapEx, depreciation, debt service, executive salaries) are excluded from the CAM pool.
Gross-Up Validation
Confirm gross-up is applied only to variable expenses, not fixed costs like taxes and insurance. Check the occupancy percentage used.
Pro-Rata Share Verification
Validate each tenant's RSF against the lease and confirm the building denominator matches the measurement standard (BOMA 2017 vs 2024).
Cap Enforcement
Check cumulative and non-cumulative cap calculations. Verify the cap bank ledger is maintained correctly for cumulative structures.
Base Year Accuracy
For base year leases, verify the base year amount was calculated correctly and that subsequent years compare against the right baseline.
Management Fee Review
Confirm management fees are within the lease-specified percentage and that fees are not calculated on top of themselves (circularity).
When Should You Audit Your CAM?
These scenarios signal that a CAM audit should be a priority: either proactive (before tenants ask) or reactive (because they already have).
| Trigger | Risk Level |
|---|---|
| Year-over-year CAM increase exceeds 10% | High |
| Building occupancy drops below 80% | High |
| New tenant auditor requests GL documentation | Critical |
| Reconciliation statements delivered more than 120 days late | Medium |
| Multiple tenants dispute the same line item | High |
| Property changes ownership or management company | Medium |
How to Self-Audit Before Tenants Do
The most effective CAM audit is the one you run before issuing reconciliation statements. Here's the process.
Export your GL
Pull the full-year operating expense GL from Yardi, MRI, or your property management system as a CSV or Excel file.
Screen against lease exclusions
Compare every GL line item against each tenant's lease exclusion list. Flag capital expenditures, depreciation, executive salaries, and debt service.
Validate gross-up math
Verify the occupancy percentage used, confirm only variable expenses are grossed up, and check that the gross-up formula matches lease language.
Check pro-rata denominators
Confirm each tenant's RSF matches the lease and that the building total denominator hasn't drifted from the measurement standard.
Enforce caps and base years
Run the cap calculation for every tenant with a controllable expense cap. Verify cumulative cap banks are tracked correctly.
Compare to prior year
Flag any line item that changed more than 15% year-over-year. Large swings are the first thing tenant auditors investigate.
CAM Audit Software: Manual vs Automated
Traditional CAM audits take weeks and cost thousands. Software reduces the process to minutes.
| Factor | Traditional Audit Firm | CapVeri (Automated) |
|---|---|---|
| Cost per property | $3,000–$15,000 | starts at $998/year with 80OFF |
| Time to results | 2–6 weeks | minutes |
| Validation rules | Depends on auditor | Same defined checks every time |
| Gross-up verification | Manual recalculation | Automated per lease |
| Cap bank tracking | Spreadsheet reconstruction | Automated cumulative ledger |
| Audit trail | PDF report | Finalized traceable snapshot |
Tenant Audit Rights: What Landlords Need to Know
Most commercial leases grant tenants the right to audit CAM charges within a specified window after receiving the reconciliation statement.
- Typical audit window: 12–36 months from statement delivery
- Landlord must provide GL documentation within 30 days of request (some leases and California SB 1103)
- If the audit finds overcharges exceeding a threshold (often 3–5%), the landlord typically pays audit costs
- Proactive self-audits catch most of the errors a tenant auditor would find
Frequently Asked Questions
What is a CAM audit?
A CAM audit is a review of a landlord's common area maintenance charges to verify that the amounts billed to tenants match actual expenses and comply with lease terms. Auditors examine the general ledger, compare line items against lease exclusions, verify gross-up calculations, check pro-rata share denominators, and confirm that expense caps were properly enforced. CAM audits are typically initiated by tenants but can also be performed proactively by landlords.
How much does a CAM audit cost?
Traditional CAM audits by third-party firms can cost thousands of dollars per property. The price grows with portfolio size, lease complexity, and the years under review. Contingency-based auditors instead take a share of whatever savings they find. Software-assisted audits through CapVeri use annual self-serve pricing from starts at $998/year with 80OFF, with results in minutes rather than weeks.
What do CAM auditors look for?
CAM auditors examine 12 key areas: (1) non-recoverable expenses in the CAM pool, (2) gross-up calculation errors, (3) expense cap enforcement failures, (4) pro-rata share denominator mismatches, (5) base year calculation errors, (6) management fee circularity, (7) capital expenditures coded as operating expenses, (8) above-market management fees, (9) missing or incorrect GL account mappings, (10) duplicate expense entries, (11) cross-property cost allocations, and (12) late charges or interest included in recoverable expenses.
How long does a tenant have to request a CAM audit?
Most commercial leases give tenants 12 to 36 months from receipt of the reconciliation statement to request an audit. The exact window depends on the lease language. California SB 1103 imposes an 18-month lookback cap for qualifying small business tenants. Once the audit window closes, the reconciliation statement is typically considered final and binding.
Can landlords perform their own CAM audit?
Yes. Proactive self-audits before issuing reconciliation statements are the most cost-effective way to prevent tenant disputes. A self-audit catches the same errors a tenant auditor would find: non-recoverable expenses, gross-up mistakes, and cap failures. CapVeri automates this process by checking your GL export for those same problems before statements go out.
Related Tools
Tenants who need to verify CAM charges can run a forensic audit at CAMAudit.io.
If you need to extract the lease terms first, Lextract.io abstracts commercial leases into structured data.
Related CAM Audit Resources
CAM Reconciliation Guide
Complete step-by-step reconciliation process
CAM Exclusion List
Non-recoverable expense reference
Audit Risk Scorecard
Assess your audit vulnerability
Audit Defense Guide
How to respond to tenant audit requests
Gross-Up Calculation Guide
Verify your gross-up methodology
CAM Expense Caps
Cumulative vs non-cumulative cap math
What Are CAM Charges?
Complete breakdown of CAM charges, recoverable expenses, and billing norms.
Lease Abstraction
Extract audit-critical lease fields from PDFs automatically.
Case Studies
Real results from the multi-pass extraction and audit pipeline.
CAM Glossary
Definitions for gross-up, pro-rata share, base year, and other CAM audit terms.
Run Your First Reconciliation Free
Upload your GL export from Yardi, MRI, or AppFolio. CapVeri runs the reconciliation, checks every charge, and hands you a tenant-ready statement in minutes. No integration. No consultant.