An FHA identity of interest transaction occurs when the buyer and seller have a pre-existing personal or business relationship. The most common example is buying a home from a family member — a parent selling to a child, siblings trading properties, or an employee purchasing from their employer. FHA treats these as non-arm's length transactions and requires a higher down payment of 15% to offset the increased risk of inflated pricing or fraudulent transactions between related parties.
This guide explains exactly when the identity of interest rule applies, the specific exceptions that can reduce your down payment back to 3.5%, how the appraisal process works on these transactions, and the documentation your lender will need. If you are buying a home from someone you know, understanding these rules before you negotiate a price can prevent delays and ensure you structure the deal correctly from the start.
What Makes a Transaction an Identity of Interest?
HUD defines an identity of interest transaction as any real estate sale where there is a pre-existing relationship between the buyer and seller that could influence the terms of the transaction. The concern is that related parties might agree to an inflated purchase price, which would result in FHA insuring a loan for more than the property is actually worth.
The following relationships trigger identity of interest status under FHA guidelines:
- Family members — Parents, children, siblings, stepparents, stepchildren, grandparents, grandchildren, aunts, uncles, nieces, nephews, and in-laws
- Business partners — Individuals who share ownership in a business entity
- Employer and employee — A sale between someone and their employer or a colleague in the same organization
- Real estate agent and buyer/seller — When the listing or buying agent is also a party to the transaction
- Any other relationship that suggests the transaction may not be at arm's length — including close friends, roommates, or individuals with shared financial interests
The key test is whether the relationship between the parties could reasonably affect the purchase price or terms. A sale between a parent and child obviously raises this concern. A sale between two strangers who happen to work at the same large corporation might not — but the underwriter will evaluate it on a case-by-case basis based on the specific facts.
How Does Identity of Interest Affect Your Down Payment?
The primary impact is on your down payment. For standard FHA transactions (arm's length, between unrelated parties), the minimum down payment is 3.5% with a 580+ credit score. For identity of interest transactions, FHA increases the minimum down payment to 15% — more than four times the standard requirement.
On a $200,000 home, that is the difference between $7,000 down (3.5%) and $30,000 down (15%). For many buyers, this increase makes the transaction significantly harder to execute, especially if the whole reason they are buying from a family member is to take advantage of a favorable price or flexible terms.
The higher down payment serves as a risk buffer for FHA. If the purchase price is inflated above true market value, the additional equity from the buyer's larger down payment helps protect FHA from losses in the event of default. It also discourages the most common form of related-party fraud, where a buyer and seller agree to an inflated price so the buyer can extract cash at closing through an artificially high loan amount.
All other FHA requirements remain the same — credit score minimums, debt-to-income ratio limits, mortgage insurance premiums, and property standards. The identity of interest rule only changes the down payment amount (and may trigger additional scrutiny during underwriting).
Buying from a family member? We will walk you through the identity of interest rules and find the best path forward.
Check My FHA Eligibility →What Is the Tenant Exception?
The most commonly used exception to the identity of interest down payment increase is the tenant exception. If you are currently renting the property you want to purchase and have been a tenant for at least six months prior to the sales contract date, FHA waives the 15% down payment requirement and allows the standard 3.5% minimum.
The logic behind this exception is practical: if you have been renting a home from a family member and now want to buy it, the transaction is essentially converting a rental arrangement into ownership. You are already living there, you already know the property's condition, and the sale price is more likely to reflect the property's actual value because you have been paying market rent and are familiar with the neighborhood.
To qualify for the tenant exception, you need to provide:
- A copy of the current lease agreement showing at least six months of tenancy before the contract date
- Proof of rent payments — Canceled checks, bank statements, or Venmo/Zelle records showing at least six months of consistent rent payments
- Verification that rent was at or near market rate — If you were paying $200 per month for a home that should rent for $1,200, the underwriter may question whether the arrangement was legitimate
This exception comes up frequently. Adult children who have been renting a home owned by their parents, long-term tenants purchasing from a landlord they have a personal relationship with, and employees renting company-owned housing all commonly use the tenant exception to qualify for the lower down payment.
What Is the Family Member Primary Residence Exception?
FHA also provides an exception when a family member is purchasing another family member's principal residence. If your mother lived in the home as her primary residence and is selling it to you, the 15% requirement may be reduced to the standard 3.5% even without a tenant relationship — provided the transaction meets certain criteria.
This exception applies when the seller is a family member who used the property as their primary residence. It does not apply to investment properties or second homes owned by a family member. The intent is to allow normal family real estate transitions — a parent downsizing and selling their home to a child, for example — without penalizing the buyer with an inflated down payment requirement.
The documentation typically includes:
- Proof that the seller occupied the home as their primary residence — Utility bills, tax returns showing the address, or a driver's license
- A standard FHA appraisal confirming the purchase price is at or below market value
- A letter of explanation describing the family relationship and the reason for the sale
Not all lenders interpret this exception the same way. Some lenders apply it broadly to any family-to-family primary residence sale, while others require additional documentation or impose their own overlays. At Bayou Mortgage, we review the specific circumstances of each transaction and identify which exceptions apply before you commit to a down payment amount.
How Do Employer-Employee Sales Work Under FHA?
Sales between an employer and employee are identity of interest transactions under FHA rules. If your company owns a property and is selling it to you, or if your boss is selling you their personal home, the 15% down payment requirement applies unless a specific exception is met.
The most relevant exception is for employer relocation transactions. When a company purchases an employee's home as part of a relocation package (the employee is transferring to a new location and the company buys their old home), and then resells that home to a new buyer who happens to be an employee of the same company, FHA allows the standard 3.5% down payment. The relocation transaction must be documented through the employer's relocation program and typically involves a third-party relocation company.
This exception exists because corporate relocations are common and the pricing is typically set by an independent appraisal ordered by the relocation company — not negotiated between related parties. The arm's length nature of the pricing is preserved even though the buyer and original seller share an employer.
How Does the Appraisal Work on Identity of Interest Transactions?
The FHA appraisal process for identity of interest transactions follows the same general procedures as any FHA appraisal, but the underwriter pays closer attention to whether the purchase price is supported by comparable sales. The appraiser must provide a market value opinion based on recent sales of similar properties in the area, and the purchase price cannot exceed the appraised value.
In practice, identity of interest transactions are sometimes priced below market value — a parent selling to a child at a discount, for example. FHA has no problem with this. The concern runs in the other direction: FHA wants to make sure the price is not above market value. If the appraised value is $200,000 and the agreed price is $180,000, the transaction can proceed at the $180,000 price with a loan based on that lower amount.
However, if the agreed price is $220,000 and the appraisal comes in at $200,000, the maximum FHA loan is based on the $200,000 appraised value. The buyer would need to either renegotiate the price down to $200,000, pay the $20,000 difference in cash on top of the down payment, or walk away from the deal.
Gift of equity transactions — where the seller is effectively gifting part of their equity to the buyer as the down payment — are allowed on identity of interest transactions. This is one of the most valuable features for family sales. If a parent's home is worth $200,000 and they sell it to their child for $170,000, the $30,000 difference (15% equity) can serve as the child's down payment. The child may not need to bring any additional cash to closing beyond closing costs.
What Documentation Is Required?
Identity of interest transactions require additional documentation beyond a standard FHA purchase. Your lender will typically need:
- Letter of explanation — A signed letter from both buyer and seller describing their relationship and the nature of the transaction
- Proof of relationship — For family transactions, documentation may include birth certificates, marriage certificates, or other records establishing the family connection
- Evidence supporting the exception (if applicable) — Lease agreements and rent payment history for the tenant exception, or proof of primary residence for the family member exception
- Gift of equity letter (if applicable) — If the seller is providing equity as part of the down payment, a signed gift letter is required
- Standard FHA documentation — Income verification, credit report, asset statements, and all other standard FHA requirements
The underwriter will review the entire transaction for signs that it may not be legitimate. Unusually high purchase prices, recently inflated appraisals, circular money flows between buyer and seller accounts, and last-minute changes to the purchase agreement are all red flags that will trigger additional scrutiny or denial.