A purchase CEMA involves coordination between buyers, sellers, lenders, and attorneys to preserve an existing mortgage and potentially reduce mortgage recording tax.
Mortgage recording tax is one of the more substantial closing costs associated with a financed New York City purchase. Because it is calculated as a percentage of the mortgage being recorded, it can add tens of thousands of dollars to the amount a buyer needs at closing.
A Consolidation, Extension, and Modification Agreement—commonly called a CEMA—may reduce this expense by preserving an existing recorded mortgage and incorporating it into the buyer's new financing.
A purchase CEMA does not eliminate mortgage recording tax, and it does not ordinarily mean that the buyer assumes the seller's loan. Instead, it changes how the buyer's mortgage is documented so that tax is generally imposed on the additional debt being secured rather than on the full amount of the new financing.
1. Why Mortgage Recording Tax Creates the Opportunity
New York imposes a tax when a mortgage against real property is recorded. For a mortgage of $500,000 or more on a one- to three-family home or individual residential condominium unit in New York City, the combined mortgage recording tax rate is generally 2.175%.
The lender commonly pays 0.25%, leaving the borrower responsible for an effective 1.925%, under the applicable rates published by the NYC Department of Finance.
Without a CEMA, a buyer obtaining a new mortgage ordinarily pays the borrower's portion of the tax based on the full mortgage amount. A purchase CEMA may preserve some of the mortgage debt already recorded against the property so that the same principal is not taxed again.
2. A CEMA Is Not a Mortgage Assumption
The word “assignment” can make a purchase CEMA sound as though the buyer takes over the seller's mortgage. That is generally not what happens.
In a mortgage assumption, the buyer becomes responsible for an existing loan, potentially retaining its interest rate, repayment schedule, and other terms, subject to the lender's approval.
In a typical purchase CEMA, the seller's existing mortgage is assigned to the buyer's lender. The buyer still obtains a new loan based on the interest rate, repayment period, underwriting, and other terms agreed upon with that lender.
What is preserved is the existing recorded mortgage lien—not necessarily the seller's loan terms.
3. How the Mortgage Is Reassembled
In an ordinary sale, the seller's mortgage is paid off and eventually satisfied in the public records. The buyer's lender then records an entirely new mortgage against the property.
With a purchase CEMA, the seller's lender assigns the existing mortgage to the buyer's lender rather than satisfying it. If the buyer needs to borrow more than the assigned balance, the buyer's lender records an additional mortgage for the difference. This is commonly called the gap mortgage.
The existing assigned mortgage and the new gap mortgage are then consolidated into a single lien securing the buyer's new loan. For example, consider a buyer obtaining a $1.5 million mortgage:
Buyer's new mortgage: $1,500,000
Seller's assignable mortgage balance: $900,000
Buyer's new gap mortgage: $600,000
The buyer still receives a $1.5 million loan. But approximately $900,000 of that financing is represented by a mortgage that was previously recorded, leaving approximately $600,000 as newly secured debt.
Under the supplemental-mortgage provisions of New York Tax Law §255, an assignment and consolidation that does not increase the secured indebtedness generally does not create another mortgage recording tax on the preserved amount, provided the statutory requirements are satisfied. Tax generally applies to the additional indebtedness secured by the new mortgage.
4. The Potential Savings
Using the example above, preserving the seller's $900,000 mortgage balance could reduce the buyer's mortgage recording tax by approximately $17,325.
$900,000 × 1.925% = $17,325
This illustration assumes that both the full $1.5 million mortgage and the $600,000 gap mortgage fall within the same applicable mortgage recording tax rate category. When the gap mortgage falls below the $500,000 threshold, the applicable rate structure may affect the calculation.
The $17,325 represents the gross potential savings—not necessarily the amount the buyer ultimately retains.
A purchase CEMA creates additional expenses. The seller's lender may charge an assignment or processing fee. The transaction may require additional legal work, title review, document preparation, and recording charges. The seller may also ask the buyer to cover certain expenses or share some of the transaction's economic benefit.
The attorneys, lenders, and title company must calculate those costs before the buyer can determine the actual net savings.
5. The Available Balance May Be Less Than Expected
The relevant CEMA amount is generally the seller's remaining assignable principal balance, not the amount the seller originally borrowed.
A mortgage recorded several years earlier for $1.2 million may have an outstanding balance of only $875,000 by the time the property is sold. The seller will ordinarily continue making payments while the transaction is pending, so the balance may decline further before closing.
Public records may show the original recorded mortgage, but they do not establish its current unpaid balance or confirm that it remains available for assignment. That information must come from the seller's lender and be coordinated by the parties' attorneys.
The size of the remaining balance matters. A large assignable mortgage may produce substantial tax savings. If only a small balance remains, the additional fees and coordination may outweigh the benefit.
6. Why the Seller and Existing Lender Must Cooperate
A buyer cannot arrange a purchase CEMA independently. Instead of receiving a standard payoff and issuing a satisfaction of mortgage, the seller's lender must agree to assign the existing mortgage and related loan documents to the buyer's lender. The seller must authorize the process, and the buyer's lender must be willing to accept the assignment. The attorneys, lenders, and title company must also confirm that the mortgage documents and prior assignments create a usable chain.
This coordination takes time. The existing lender may need to locate original documents, verify the mortgage history, prepare an assignment, calculate the final unpaid balance, and arrange delivery. Older mortgages, missing documents, prior lender transfers, or title defects may slow the process.
A possible CEMA should therefore be raised early in the transaction. Waiting until the parties are preparing to schedule the closing may leave insufficient time to complete it.
7. How the Buyer and Seller May Divide the Benefit
The buyer receives the clearest benefit because the purchase CEMA may reduce the mortgage recording tax due on the new loan. Depending on the transaction structure, the seller may also receive a benefit in calculating New York State real estate transfer tax when an existing mortgage lien is preserved.
Because both parties may benefit, the allocation of costs is often negotiated.
The seller may ask the buyer to pay the existing lender's assignment charge, reimburse additional legal expenses, or share a portion of the savings. The contract may also establish whether the seller is required to cooperate with a CEMA and whether that cooperation is conditioned on the seller incurring no additional cost or delay.
There is no universal division that applies to every purchase. The final arrangement depends on the transaction, the lenders, the contract language, and the negotiations between the parties.
8. When a Purchase CEMA May Not Be Practical
Even when a seller has an outstanding mortgage, a purchase CEMA is not automatically available. The seller's lender may decline to assign the loan documents. The buyer's lender may not accept an assignment from that institution. The existing mortgage may have documentation or title issues, or the parties may be working toward a closing schedule that does not allow enough time.
A CEMA may also offer limited value when the seller's remaining mortgage is small or when the associated lender, legal, and title expenses consume most of the expected tax savings. The analysis is therefore specific to each purchase. The existence of a recorded mortgage creates a possible opportunity, but it does not guarantee that the transaction can—or should—be structured as a CEMA.
9. Purchase CEMA Versus Refinance CEMA
Purchase and refinance CEMAs use the same general principle but involve different transactions. In a purchase CEMA, the seller's existing mortgage is assigned to the buyer's lender as part of the sale. In a refinance CEMA, the owner's existing mortgage is assigned to a new lender and consolidated with any additional borrowing. Mortgage recording tax may then be limited primarily to the new money added through the refinance.
In either case, the purpose is to preserve mortgage debt that has already been recorded rather than satisfy the existing mortgage and replace it with an entirely new one.
10. Why CEMAs Generally Do Not Apply to Co-ops
Mortgage recording tax applies to mortgages recorded against real property. A condominium apartment and a townhouse are real property, so mortgages secured by those properties are recorded in the land records.
A co-op buyer acquires shares in a cooperative corporation together with a proprietary lease. The buyer's loan is secured principally by those shares and lease rather than by a mortgage recorded against the apartment.
Because ordinary co-op share loans are generally not subject to mortgage recording tax, there is ordinarily no corresponding tax for a purchase CEMA to reduce. CEMAs are therefore principally relevant to financed purchases of condominiums, townhouses, and other real property.
11. Identifying a CEMA Opportunity
A potential CEMA may become visible through listing information, seller disclosures, a title search, or public records. Those sources may establish that a mortgage was recorded, but they do not confirm the current balance or whether the lender will assign it.
The buyer's attorney may ask the seller's attorney whether an outstanding mortgage is available for assignment. The buyer's loan officer must then confirm whether the new lender permits purchase CEMAs and what documentation it requires.
This inquiry is most useful early in the legal and financing process, before the transaction has been organized around a standard mortgage payoff.
12. The Role of the Buyer's Agent and Attorney
A buyer's agent may recognize that a financed condo or townhouse purchase presents a potential CEMA opportunity, raise the issue early, and help the buyer consider possible savings within the property's broader closing-cost estimate.
The buyer's attorney and lender determine whether the structure is legally and operationally available. They coordinate with the seller's attorney, existing lender, and title company; review the mortgage history; establish the assignable balance; and compare the expected tax savings with the additional costs.
A purchase CEMA may produce meaningful savings, but its value depends on the size of the assignable mortgage and the cooperation of the parties involved. The objective is not simply to complete a CEMA. It is to determine whether preserving the existing mortgage produces enough net benefit to justify the added work and timing.
Tax Treatment and Professional Review
The examples and tax calculations in this article are illustrative and do not constitute legal, tax, or mortgage advice. Before proceeding with a purchase CEMA, buyers and sellers should have their attorneys, lenders, and title company independently confirm the applicable treatment under New York Tax Law §255, the mortgage recording tax rates and thresholds applicable to the particular transaction, and any potential New York State real estate transfer-tax benefit to the seller. Actual tax obligations and net savings depend on the mortgage amounts, documentation, property classification, transaction structure, and applicable law at the time of closing.
Related Resources & Insights
NYC Mortgage Recording Tax: Rates, Calculations, and Closing Costs
Understanding the Pre-Contract Phase in NYC Real Estate Transactions
Why NYC Real Estate Is More Document-Driven Than Most Markets
Buying Before Selling in NYC: How Transaction Sequencing Affects Risk and Leverage
How Existing Mortgages Are Handled When Selling NYC Property
Considering a financed condo or townhouse purchase in New York City? Feel free to reach out to discuss estimated closing costs and whether a potential purchase CEMA is worth raising with your attorney and lender.