Property Inspection Waivers are among the most consequential changes the GSEs have made to mortgage collateral assessment in recent years. When a PIW is available, lenders can close a loan without a traditional appraisal — faster, at lower cost to the borrower. But PIW acceptance involves a collateral risk tradeoff that lenders need to evaluate on a transaction-by-transaction basis.
What Is a Property Inspection Waiver (PIW)?
A Property Inspection Waiver (PIW) — also called an Appraisal Waiver — is an offer from Fannie Mae or Freddie Mac to waive the full appraisal requirement on a specific eligible loan transaction. The waiver is generated automatically by the GSE’s automated underwriting system when it determines it has sufficient data — from prior appraisals, public records, and its own valuation models — to support the collateral decision without a new appraisal.
For lenders, a PIW approval means faster closings and lower borrower costs on eligible transactions. For borrowers, it eliminates the appraisal fee and the scheduling delay. For the GSEs, waivers represent a data-driven decision that available information is sufficient to support the loan.
PIWs are not available for all transactions. Eligibility depends on LTV ratio, property type, loan purpose, occupancy, and whether the GSE has adequate prior data on the subject property. High-LTV loans, investment properties, and transactions where the GSE lacks prior appraisal history are generally not eligible.
What is the difference between a PIW and an appraisal waiver?
PIW and appraisal waiver refer to the same concept. “Appraisal waiver” is the term used in Fannie Mae’s Selling Guide; “PIW” became the standard industry shorthand. Freddie Mac calls its equivalent program Automated Collateral Evaluation (ACE). All three terms describe a loan where the traditional full 1004 appraisal requirement has been waived based on GSE automated data analysis.
How Do PIWs Affect the AMC Relationship?
When a PIW is accepted, no appraisal order is placed with the AMC. The loan closes on the basis of the GSE’s automated collateral decision. This is efficient for straightforward transactions on well-documented properties — but it removes the independent collateral check that a full licensed appraisal provides.
Lenders retain the right to decline a PIW and order a full appraisal even when one is offered. In markets experiencing rapid price appreciation or unusual market conditions — including portions of the Las Vegas metropolitan area — lenders may exercise this right to protect their collateral position even at the cost of additional time and expense.
PIW Acceptance Risk: When a lender accepts a PIW, they accept the GSE’s automated collateral decision. If the property later proves overvalued, the lender has less documentation to support their underwriting position in a repurchase review.
PIW with Value Acceptance + Property Data: Fannie Mae’s enhanced waiver program may require a non-appraiser property data collector (PDC) to conduct an inspection. This hybrid approach provides property condition data without a full licensed appraisal.
Full Appraisal as Risk Management: In high-value transactions, rapidly appreciating markets, or loans with unusual property characteristics, ordering a full appraisal even when a PIW is available provides a documented collateral foundation that waiver acceptance does not.
Should lenders always accept a PIW offer?
Not necessarily. PIWs work well for low-risk refinance transactions on owner-occupied properties in stable markets where the GSE has strong prior data. For purchases at high LTVs and for properties in markets with recent price volatility, many lenders order a full appraisal regardless of PIW eligibility. The decision is a risk management judgment call based on portfolio standards and investor requirements.
PIWs and Appraisal Modernization
Property Inspection Waivers are part of a broader shift in how the GSEs are approaching collateral assessment — increasingly relying on automated data, property data collectors, and hybrid appraisal models alongside traditional full appraisals. This shift is accelerating alongside the rollout of UAD 3.6 and evolving GSE appraisal modernization policies.
Lenders need AMC partners who understand both the traditional full appraisal environment and the evolving modernization landscape — including when PIWs and hybrid products are appropriate and when a full licensed appraisal remains the right tool. R3 AMC stays current on GSE policy changes and advises lender clients on how these developments affect their operations.
R3 AMC’s coverage of UAD 3.6 changes relevant to appraisal modernization is available here.
Lenders with questions about when to order a full appraisal versus accepting a waiver can speak with the R3 AMC team on our website.
Fannie Mae publishes current eligibility requirements for appraisal waivers on their website.
Frequently Asked Questions
Which loan types are eligible for a PIW?
PIW eligibility is determined by Fannie Mae’s DU or Freddie Mac’s LPA on a transaction-by-transaction basis. Eligibility is strongest for limited cash-out refinances on owner-occupied single-family properties where the GSE has prior appraisal data. Purchase transactions at higher LTVs, investment properties, condominiums, two-to-four-unit properties, and cash-out refinances face more restrictions. VA loans follow different procedures and are outside Fannie Mae and Freddie Mac PIW programs.
Does a PIW eliminate the need for an AMC?
A PIW eliminates the need for a traditional appraisal on that specific transaction — no appraisal order is placed with the AMC. However, lenders still need AMC services for transactions that do not receive a PIW offer, which remains the majority of purchase transactions and many refinances. Lenders who rely on PIWs for eligible loans still benefit from a reliable AMC partner for the orders that require full appraisals.
Can a borrower be charged an appraisal fee when a PIW is used?
No. When a PIW is accepted and no appraisal is ordered, the borrower cannot be charged an appraisal fee. If the lender declines the PIW and orders a full appraisal at the borrower’s expense, that decision must be disclosed and the fee must comply with applicable disclosure regulations.
What happens if a PIW transaction later has a collateral problem?
If a loan closed under a PIW is later found to have a collateral problem — overvaluation, undisclosed condition, misrepresentation — the lender’s position in a repurchase review is more limited than if a full appraisal had been obtained. The GSE may still seek repurchase if the lender knew or should have known about the property issue regardless of the waiver. Lenders should weigh this risk when deciding whether to accept PIW offers on higher-risk transactions.
Is a PIW the same as an automated valuation model (AVM)?
No. A PIW uses the GSE’s own data — prior appraisal history, public records, and proprietary valuation models — to make a specific loan-level collateral decision. An AVM is a standalone software tool that estimates property value based on statistical modeling. AVMs are used for various purposes in mortgage lending, but a PIW is a specific GSE program decision tied to a specific loan transaction — not a general AVM product.