Add an estimated closing-cost percentage if you want a quick buyer-cash view. The seller's equity gift is not cash, so closing costs still usually need to be covered separately.
Display currency
Enter the family-sale details Add the appraised market value and the agreed sale price to estimate the gift of equity, effective down payment, and starting loan-to-value ratio.
Gift of equity calculator guide: estimate family-sale equity credit, down payment strength
A gift of equity calculator helps families see how much below-market value a home sale can transfer to the buyer, how that credit can function like down-payment equity, and how much mortgage may still be needed. This guide explains how a gift of equity works in a U.S. family sale, why lender documentation still matters, and where this estimate stops short of real underwriting or tax advice.
What a gift of equity means in a family home sale
A gift of equity happens when a home seller, often a parent or other family member, agrees to sell the property for less than its appraised market value and treats the difference as a gift to the buyer. In mortgage planning terms, that difference can act like instant equity because the buyer is acquiring a property worth more than the contract price they are paying.
That is why searchers looking for a gift of equity calculator usually want more than one subtraction. They want to know whether the discount behaves like a down payment, how much loan may still be required, whether the starting loan-to-value ratio is low enough to help with conventional mortgage pricing, and how much buyer cash still has to show up at closing even if the seller is gifting part of the value.
This page is intentionally scoped to U.S. mortgage planning. The lender treatment, donor rules, settlement documentation, and possible gift-tax paperwork are country-specific, so the result should be read as a United States family-sale estimate rather than a universal property-transfer tool.
How the gift of equity calculation works
The core math starts with the appraised market value and subtracts the agreed family sale price. That difference is the gift of equity. The calculator then adds any buyer cash contribution to estimate the total starting equity going into the transaction, because some loans still require the buyer to contribute their own funds even when the seller is gifting value.
From there, the estimated loan amount is the sale price minus the buyer's cash contribution. Comparing that modeled loan amount with the appraised market value produces the starting loan-to-value ratio, or LTV. This is the ratio lenders watch closely because it affects mortgage insurance, pricing, and whether the transaction looks like a higher-risk or lower-risk loan.
The benchmark section translates that math into familiar U.S. down-payment thresholds such as 3.5%, 5%, 10%, and 20%. Those thresholds are not promises of approval. They are practical planning markers that help a buyer judge whether the family sale creates enough equity to resemble a typical low-down-payment, mid-down-payment, or PMI-avoidance scenario.
Gift of equity = appraised market value − agreed sale price
The portion of the seller's equity transferred to the buyer as a credit because the property is sold below market value.
Total starting equity = gift of equity + buyer cash contribution
The combined equity position the buyer brings into the transaction after including any of their own funds.
LTV = estimated loan amount ÷ appraised market value
A simplified starting loan-to-value ratio used to compare the planned loan against the home's appraised value.
Worked example: a $500,000 home sold to family for $420,000
Suppose a parent is selling a home with a current appraised market value of $500,000 to a child for $420,000. The gift of equity is $80,000 because the contract price is $80,000 below market value. If the buyer also contributes $15,000 of their own cash, the total starting equity becomes $95,000.
In that example, the modeled effective down payment is 19% of the appraised value. The estimated loan amount would be $405,000 because the buyer cash contribution reduces how much still needs to be financed from the $420,000 sale price. That leaves a starting LTV of about 81%, which is close to the common 80% conventional PMI threshold but still slightly above it.
This is exactly why the buyer cash field matters. A family sale can create a large gift of equity, but a relatively small extra buyer contribution may still be the difference between landing above or below a lender's 80% LTV line. The calculator makes that tradeoff visible without pretending to replace an appraisal review or full lender approval.
Why documentation and minimum borrower contribution still matter
A gift of equity is not the same as an undocumented private understanding inside a family. U.S. lenders typically want a real appraisal, a signed contract, and a settlement statement showing the gift of equity clearly in the transaction. Fannie Mae's guidance also makes clear that the same acceptable-donor and minimum borrower contribution rules that apply to personal gifts can still apply to gifts of equity.
That means a buyer should not assume the seller's discount automatically eliminates every own-funds requirement. Some loan programs, occupancy types, or credit scenarios may still require the buyer to bring a minimum amount of personal funds, maintain reserves, or satisfy additional underwriting conditions. A gift of equity can help, but it does not erase the lender's risk standards.
The tax side also needs separate attention. A gift of equity may raise gift-reporting questions for the seller even when no immediate gift tax is owed, because filing thresholds, annual exclusions, and lifetime exemption rules live under federal tax law rather than mortgage underwriting rules. The calculator is there to frame the mortgage side first, not to make a tax filing decision for the family.
What this calculator does not cover
This tool is intentionally a planning estimate. It does not produce a lender-approved appraisal value, determine whether the transaction satisfies a particular loan program's occupancy or relationship rules, or tell you whether a lender will accept the exact donor structure you have in mind. Underwriters may also apply reserve rules, debt-to-income rules, and documentation standards that are outside this page's scope.
It also does not model every cash line item. Closing costs, prepaid taxes and insurance, discount points, title fees, transfer taxes, attorney fees, and repairs can all change the amount of cash the buyer still needs even when the down-payment side looks strong. The optional closing-cost field is only a quick planning shortcut.
Finally, this calculator does not calculate gift tax, basis adjustments, capital gains, or inheritance-planning consequences. Families considering a below-market transfer should review the mortgage structure with the lender and the tax consequences with a qualified tax professional before they treat the result as decision-ready.
Further reading
IRS — Instructions for Form 709 (2025) — Official IRS instructions covering federal gift-tax reporting, annual exclusion treatment, and when Form 709 may be relevant.
Frequently asked questions
Is a gift of equity the same as a cash down payment?
Not exactly. A gift of equity is value transferred by the seller because the home is sold below appraised market value, while a cash down payment is money the buyer brings directly to closing. In practice, lenders can count a gift of equity toward the buyer's starting equity position, but some loan programs may still require a minimum borrower contribution or other documentation even when the seller is gifting part of the value.
Can a gift of equity eliminate PMI?
Sometimes, but not automatically. If the gift of equity plus any buyer cash contribution lowers the starting loan-to-value ratio to 80% or below, that can line up with the common conventional PMI threshold. The important word is can. The exact outcome still depends on the loan program, the appraisal the lender accepts, underwriting details, and any other conditions attached to the mortgage.
Does a gift of equity trigger gift tax or Form 709?
It can create gift-reporting questions for the seller, but this calculator does not decide that issue for you. In the United States, the annual exclusion, lifetime exemption, relationship of the parties, and the way the transfer is documented all matter. Families often assume that no immediate tax payment means no paperwork is required, but that is not always true. Review the transfer with a qualified tax professional and the current IRS Form 709 instructions before relying on that assumption.
Can this calculator replace a lender's underwriting decision or appraisal?
No. This page is a planning tool, not a loan approval. The lender will still decide which appraisal value it accepts, whether the donor relationship qualifies, whether the transaction structure fits program rules, whether the borrower meets credit and debt-to-income standards, and what documentation must appear on the settlement statement. Use the result to prepare for that conversation, not to skip it.
