MCI And IAI Rent Increases: What NYC Owners Can Still File

MCI vs. IAI

The simplest way to separate the two workflows is scope. An MCI is tied to a building-wide improvement, installation, or replacement. An IAI is tied to work performed inside an individual apartment. Both may involve rent-stabilized rent records, but they answer different questions.

HCR's Apartment Improvements and Building Improvements overview explains the distinction: owners of rent-regulated buildings may apply to increase legal regulated rents based on certain improvements, with MCIs focused on building-wide improvements and IAIs focused on apartment-specific improvements.

For owner-side teams, the most important step is to keep the workflows separate before anything reaches the rent roll, renewal process, resident communication, or reporting package. If MCI and IAI are mixed together in one review process, it becomes harder to prove which rule, source record, approval path, and document set supported the rent record change.

What Qualifies as an MCI

HCR's Fact Sheet #24: Major Capital Improvements describes an MCI as a building-wide improvement, installation, or replacement that an owner may apply for after completing qualifying work. The fact sheet says a qualifying MCI must generally be depreciable under the Internal Revenue Code, be for operation, preservation, or maintenance of the building, directly or indirectly benefit all tenants, and meet useful-life requirements.

That creates an approval workflow, not just a data-entry workflow. The owner needs to know what work was completed, when it was completed, whether the work meets the public criteria, whether the application timing is still available, how tenants were notified, and whether DHCR issued an order approving the increase.

Fact Sheet #24 also notes tenant notice and response rights. That matters operationally because the records supporting the application may need to be assembled, explained, and retained long after the physical work is complete. The improvement record, tenant communication, approval order, rent history, and property reporting should all point to the same story.

MCI questions to answer before rent records change

• What building-wide work was completed, and when was it completed?
• Does the work meet current HCR criteria for an MCI?
• Was the application filed within the required timing window?
• Were tenants notified, and where are those records stored?
• Has DHCR issued an order, and is that order attached to the internal record?
• Which rent records, reports, and billing workflows need to reflect the final approved treatment?

What Qualifies as an IAI

An IAI is apartment-specific improvement work. The review starts with the apartment, not the building. Owners need to confirm what work was completed, which apartment it affected, whether the apartment was occupied or vacant, which consent rules apply, what documentation supports the work, and how the resulting rent record should be handled.

HCR's Revised Operational Bulletin 2024-2 says owners must file an IAI Notification Form in ORRA for IAIs completed after October 17, 2024. It also describes supporting documentation such as before-and-after photos, itemized invoices, contractor or vendor information, and proof of payment.

The apartment-level nature of IAI review makes recordkeeping especially important. The rent history, lease file, tenant consent record, work documentation, invoice support, payment proof, and ORRA notification should all be connected. If the documentation lives outside the core workflow, the team may struggle later when a renewal, resident inquiry, audit request, or portfolio review brings the rent record back into focus.

IAI questions to answer before rent records change

• Which apartment received the improvement work?
• Was the apartment occupied or vacant when the work was performed?
• Which HCR consent form or notification requirement applies?
• Are before-and-after photos, invoices, vendor records, and payment proof retained?
• Has the ORRA notification been filed when required?
• Where will the final support live so future teams can explain the rent record?

What Changed After October 17, 2024

HCR's revised IAI guidance applies to IAIs completed after October 17, 2024. The revised bulletin should be checked directly before an owner relies on any IAI process, because the requirements are specific and the supporting documentation matters.

The revised bulletin describes a lower cost-cap tier and a higher cost-cap tier, with different rules depending on apartment history and building size. It also explains that the higher cap tier can be used only once in a 25-year period for a given apartment. Owners should confirm current HCR guidance before calculating or applying any increase.

For operating teams, the point is not to memorize every number in isolation. The point is to build a review path that preserves the facts: apartment status, vacancy history, consent records, cost support, calculation support, approval ownership, ORRA notification, lease records, and document retention. If the support is scattered, the rent record becomes harder to explain later.

Documentation Owners Should Preserve

MCI and IAI work can fail operational review even when the team believes the underlying improvement was real. The issue is often the record trail. A future reviewer may ask what work was done, who approved it, which rule applied, which tenants were affected, what amount was used, and where the support lives.

HCR's revised IAI bulletin specifically names documentation such as before-and-after photos, itemized invoices, contractor or vendor information, and checks or payment proof. MCI review has its own support path tied to building-wide work, application timing, tenant notice, tenant response, and DHCR orders. Both workflows need a complete file, not just a rent field update.

Strong documentation also protects the operating team. When records are complete, leasing can answer resident questions, accounting can trace billing, compliance can verify requirements, and asset management can understand the portfolio impact. When records are incomplete, every question becomes a reconstruction project.

Where Yardi Records Need to Line Up

For teams using Yardi, MCI and IAI readiness depends on clean property, unit, tenant, lease, rent, charge, reporting, approval, and document records. The improvement file should not sit apart from the system records that leasing, accounting, compliance, and reporting teams rely on.

Start with the record that defines scope. For MCI, that usually means the building and affected tenant population. For IAI, that means the apartment and its occupancy history. Then review the rent fields, lease records, tenant communication, charge setup, reporting logic, and document storage. A rent-history change is only as strong as the source records behind it.

The best Yardi workflow is not a one-time correction. It is a repeatable process: identify candidate records, validate source support, assign approval ownership, update the system, attach support, test reports, and preserve the audit trail. That sequence keeps the next renewal, annual registration, resident inquiry, or portfolio review from becoming a scramble.

Common Breakdowns

MCI and IAI workflows usually break down at handoff points. Construction, property management, leasing, compliance, accounting, and reporting may all see part of the record, but no single team sees the full chain unless the process is designed that way.

One common issue is treating improvement work as complete when the physical project ends. For rent-stabilized operations, the work is not operationally complete until the filing, support, rent-history review, system update, and document trail are also complete. Another common issue is relying on a spreadsheet that identifies candidates without showing the supporting records or approval path.

When a breakdown happens, the fix should move back upstream. Correcting a report output or a billing record may solve the immediate problem, but the team should also update the source record, document storage, approval workflow, and recurring report logic so the same issue does not return during the next renewal or filing cycle.

Breakdowns to watch for

• MCI work is tracked at the project level, but tenant notice and DHCR order records are not connected to the property file.
• IAI invoices and payment proof exist, but apartment status and consent records are incomplete.
• Rent fields are updated before final approval documentation is stored.
• Reports identify candidate units, but no one owns final review before changes are made.
• Document support lives in email, local files, or project folders that future teams cannot find.
• Renewal, registration, and rent-history teams are not told when an improvement-related record changes.

MCI And IAI Readiness Checklist

Use this checklist before relying on an MCI or IAI rent increase, preparing a rent-history update, responding to an internal review, or making a system change that affects improvement-related rent records.

• Confirm whether the workflow is MCI, IAI, RGB renewal math, 421-a surcharge review, or another rent-stabilized process.
• Verify current HCR guidance and case-specific legal or compliance direction before relying on an internal checklist.
• Confirm the building, apartment, tenant, lease, and rent records affected by the improvement review.
• For MCI, verify building-wide scope, useful life, application timing, tenant notice, tenant responses, and DHCR order status.
• For IAI, verify apartment status, consent requirements, ORRA notification, invoices, photos, vendor records, and proof of payment.
• Confirm the approval owner before rent fields, charge setup, or resident communication changes.
• Attach or store supporting documents where leasing, accounting, compliance, and reporting teams can find them later.
• Test reports against known records before relying on them as a working review list.
• Update source records, not only spreadsheets, so future renewal and registration cycles start cleaner.
• Document any unresolved questions for counsel or designated compliance leadership before action is taken.

MCI And IAI Rent Increase FAQ

HCR Sources to Verify Before MCI or IAI Decisions

This guide is operational guidance, not legal advice. Owners should verify current HCR instructions, required forms, filing procedures, case-specific facts, and counsel guidance before making MCI or IAI rent decisions.

• HCR Apartment Improvements and Building Improvements
• HCR Fact Sheet #24: Major Capital Improvements
• HCR Revised Operational Bulletin 2024-2: Individual Apartment Improvements
• HCR Operational Bulletin 2024-2 FAQs
• HCR Update Number 5 to Operational Bulletin 2021-1