If you are refinancing a mortgage in New York City — or buying a home from a seller whose mortgage is still on the property — the single most consequential decision on your closing statement is whether to structure the deal as a Consolidation, Extension, and Modification Agreement, known to every NYC closing attorney as a CEMA. A CEMA can save a typical refinancing homeowner anywhere from a few thousand to tens of thousands of dollars in mortgage recording tax. Skip the CEMA and you pay the full mortgage recording tax on the new loan as if it were brand new money. The amount at stake is large enough that this one decision often determines whether a refinance pencils out.
This 2026 guide walks through how a CEMA works in plain English, when the math is worth it and when it is not, the underlying New York Tax Law authority that allows the savings, the affidavit and Section 255 paperwork that has to be filed, the ACRIS recording mechanics, the typical fee load, the deadlines, and the exact form numbers and agency phone numbers to call if a closing statement does not look right.
What a CEMA Actually Is, Without the Jargon
Start with the underlying problem. Every time a mortgage is recorded against real property in New York City, mortgage recording tax is paid on the principal amount of the new loan. The combined NYC and NYS rate for a one-to-three family home or individual condo unit in 2026 is 1.80% on mortgages under $500,000 and 1.925% on mortgages of $500,000 or more. On a $600,000 refinance that is $11,550 — paid the day the mortgage is recorded.
A CEMA sidesteps that bill on the portion of the new loan that simply replaces the old one. Instead of paying off the old mortgage and recording a brand-new one, the existing mortgage is assigned from the old lender to the new one. The new lender then writes a small gap mortgage for the difference between the old payoff balance and the new loan amount, and the assigned mortgage plus the gap mortgage are consolidated, extended, and modified into a single new loan with new terms. Mortgage recording tax is paid only on the gap mortgage — the genuinely new money — not on the assigned principal that was already taxed when the original mortgage was first recorded.
The legal authority is in Section 255 of the New York Tax Law, which exempts from additional mortgage recording tax a supplemental mortgage that does not create or secure any new indebtedness beyond what was already taxed. The NYC Department of Finance recognizes this structure in its document recording checklist: when a Consolidation, Modification, Extension Agreement is recorded with an exemption from mortgage tax, the filer must include an affidavit “citing ALL original or simultaneous mortgage details, including the applicable section of law and original tax paid.” That affidavit is the Section 255 affidavit, and it is the document that unlocks the savings.
A Worked Example: $600,000 Refinance, $400,000 Old Balance
Suppose a homeowner in Astoria has $400,000 left on a 30-year mortgage they took out in 2019. Rates have moved, they want to refinance into a new $600,000 loan to also pull $200,000 out for a renovation. Run the numbers two ways:
Without a CEMA: The new $600,000 mortgage is recorded as new. Combined NYC/NYS mortgage recording tax at the 1.925% rate (loan is $500,000 or more) is $600,000 × 0.01925 = $11,550.
With a CEMA: The old $400,000 mortgage is assigned to the new lender. A new gap mortgage is written for $200,000. The two are consolidated. Mortgage recording tax is paid only on the $200,000 gap. Because the consolidated loan is over $500,000, the applicable rate is still 1.925% on the gap (some structures bring the gap-only rate down to 1.80% if the gap itself is under $500,000 and the property qualifies, but title companies typically apply the rate of the consolidated principal). Tax on $200,000 × 0.01925 = $3,850.
Savings: $7,700 before fees. Apply the standard $10,000 residential additional-tax deduction for a one-or-two family home — already baked into the title company’s calculation — and the result is the same order of magnitude.
The Fee Load — Why a CEMA Is Not Free
A CEMA is more work than a regular refinance, and that work is paid for. The fee load on a typical NYC residential CEMA in 2026 looks like this:
- Old lender assignment fee: usually $300 to $750. The old lender has to draft and sign an assignment of mortgage in favor of the new lender.
- Old lender attorney fees: usually $250 to $500. The old lender’s counsel reviews the assignment package.
- New lender CEMA fee: $750 to $1,500, sometimes more on jumbo loans.
- Borrower’s attorney fee uplift: a few hundred extra over a non-CEMA refinance because the closing package has more documents.
- Title insurance endorsement: a small uplift for the consolidation endorsement.
- ACRIS recording fees: the assignment of mortgage adds an extra $3 per mortgage recited in the assignment beyond the first, per the NYC Register fee schedule, on top of the standard per-document recording fees.
Total CEMA fee load typically runs $2,000 to $4,000 on a residential refinance. Run that against the mortgage recording tax savings to decide if the math works.
When a CEMA Makes Sense — and When It Does Not
The math is simple. If the mortgage recording tax savings are larger than the CEMA fee load, do it. If not, take the cleaner non-CEMA closing.
A rough rule of thumb based on the 2026 NYC rates: on a 1–3 family or condo property, every $100,000 of old-mortgage balance preserved through the CEMA saves roughly $1,925 in mortgage recording tax. A CEMA fee load of $3,000 is therefore worth carrying when the old balance preserved is at least $160,000. Below that line, the fees eat the savings. Above it — and especially on jumbo loans where $500,000 to $800,000 of old principal can be rolled — the CEMA is almost always the right call.
One important constraint: the old lender has to agree. Federal banks generally cooperate with CEMA requests because it is a routine part of NYC closings, but they are not obligated to assign rather than discharge. A small credit union or a private lender can refuse. Ask the old lender’s payoff department early — at least 30 days before closing — whether they will assign. If they say no, the refinance reverts to a standard payoff-and-record and the borrower pays full mortgage recording tax on the new loan.
The Affidavit and Section 255 — What Actually Gets Filed
The paper trail that drives the tax savings sits inside the recording package. Three documents matter most:
The Assignment of Mortgage. Signed by the old lender, transferring the existing mortgage to the new lender. Under the NYC Department of Finance recording checklist, an assignment of mortgage must include the recording information of the original mortgage — Block, Block, Lot, dates, parties, and dollar amount — and a Section 275 clause (the standard clause confirming the assignment is for value and was duly authorized). Multiple mortgages, consolidations, and modifications in the chain must all be listed in detail.
The Gap Mortgage. A new mortgage for the difference between the old payoff balance and the new total loan. This is the only piece of the deal on which mortgage recording tax is actually paid.
The Consolidation, Extension, and Modification Agreement itself. The document that ties the assigned mortgage and the gap mortgage together and restates the new terms — rate, payment, maturity. Under the NYC recording checklist, when this agreement is recorded with a mortgage tax exemption claimed on the consolidated portion, the filing package must include a Section 255 affidavit citing all original or simultaneous mortgage details, the applicable section of law (Tax Law §255), and the original tax paid on each underlying mortgage. The affidavit is what tells the City Register why the consolidated amount is not being taxed all over again, and it is the document that gets reviewed when the recording is audited.
If the affidavit is incomplete or the original-tax-paid figures are wrong, the City Register can reject the exemption claim and demand mortgage recording tax on the full consolidated amount. This is where a title company that actually knows NYC CEMAs is worth what they charge — most rejections are mechanical, not substantive, and a clean package goes through without trouble.
How the Recording Actually Happens in ACRIS
All property documents for Queens, Brooklyn, Manhattan, and the Bronx are recorded online through ACRIS — the Automated City Register Information System. Staten Island filings go through the Richmond County Clerk in person.
The ACRIS package for a CEMA closing typically includes the assignment of mortgage, the gap mortgage, the CEMA agreement, the Section 255 affidavit, the Endorsement Cover Page for each document, and the mortgage recording tax payment for the gap portion. Per the NYC Department of Finance recording checklist, the cover page has to match the document on names, block and lot, mortgage amount, and apportionment. A mismatch anywhere on the package will bounce the recording.
The ACRIS Help Desk for filing questions is reachable at (212) 487-6300. For technical assistance with the recording portal itself, the same number routes to the e-recording team.
Form MT-15 and Where the State Side Gets Filed
The State side of the mortgage recording tax flows through Form MT-15, Mortgage Recording Tax Return, hosted on the New York State Department of Taxation and Finance site at tax.ny.gov/pdf/current_forms/mortgage/mt15.pdf. MT-15 is technically required only when the property sits in more than one locality with different rates, per the underlying tax.ny.gov mortgage recording tax page (updated December 30, 2025). For a single-borough NYC residential CEMA the title company will typically still prepare MT-15 as a matter of course.
If the borrower discovers after closing that mortgage recording tax was overpaid — most commonly because a CEMA was contemplated and then accidentally dropped, or because the gap mortgage was taxed at the wrong rate — Form MT-15.1, Application for Refund of Mortgage Recording Tax, must be filed within two years of the date the recording office received the erroneous payment. Day 731 is too late. This is one of the strictest deadlines in the NYC closing-tax landscape.
For questions about Form MT-15 or a refund application, the New York State Department of Taxation and Finance technical assistance line is 518-457-8637. For general forms-by-mail the line is 518-457-5431.
Purchase CEMAs — When the Seller’s Mortgage Travels With the Deal
The CEMA structure is not limited to refinances. On a purchase, if the seller still has an existing mortgage on the property and that lender is willing to assign rather than be paid off, the buyer’s new lender can step into the seller’s mortgage the same way. The result is a purchase CEMA: the buyer’s new loan absorbs the seller’s old balance, the gap is taxed, the assigned principal is not.
Purchase CEMAs are rarer than refinance CEMAs because most sellers want a clean payoff and most lenders prefer assigning to a known refinance customer rather than to a new buyer. When the structure works, both sides can split the savings — sellers sometimes credit a portion of the avoided mortgage recording tax to the buyer to make the listing more attractive. Ask the seller’s attorney early whether the existing mortgage is CEMA-able and whether the lender will cooperate.
What a CEMA Does Not Do
A CEMA reduces the mortgage recording tax bill. It does not reduce the New York City Real Property Transfer Tax (RPTT), the New York State real estate transfer tax, or the mansion tax. Those taxes are computed on the consideration paid for the property, not on the mortgage, and they are unaffected by how the mortgage is structured. A buyer purchasing a $1.5 million condo still owes the mansion tax at 1.00% regardless of whether the deal includes a purchase CEMA.
A CEMA also does not change the underlying interest rate, term, or any other economic feature of the new loan beyond the tax. The rate, payment, and amortization are exactly what the borrower would have gotten in a non-CEMA refinance. The only difference is the mortgage recording tax line on the closing statement.
Refunds, Disputes, and Where to Call
If a CEMA was supposed to be executed at closing and the closing statement still shows full mortgage recording tax on the entire new loan, do not sign without a conversation with the closing attorney. The fix has to happen before the recording wire goes out — or, failing that, within the two-year MT-15.1 refund window.
For questions about how the tax was calculated at recording in Queens, Brooklyn, Manhattan, or the Bronx, contact the NYC Department of Finance at 311 (or 212-639-9675 from outside the five boroughs) and ask for the Office of the City Register. For Staten Island filings, contact the Richmond County Clerk at 718-675-7700. For ACRIS recording-portal questions, the help desk number is (212) 487-6300.
For questions about the state-level mortgage recording tax components, Form MT-15, or an MT-15.1 refund application, the New York State Department of Taxation and Finance line is 518-457-8637.
CEMA FAQ
Does a CEMA always save money?
No. The CEMA fee load typically runs $2,000 to $4,000 on a residential refinance, and on smaller old-mortgage balances the fees can exceed the mortgage recording tax savings. As a rough rule, every $100,000 of old principal preserved saves about $1,925 in tax at 2026 rates. Below roughly $160,000 of old balance the CEMA generally does not pencil out.
Will my old lender always agree to assign?
Most large federally regulated banks will cooperate. Smaller credit unions, portfolio lenders, and private lenders can refuse. Ask the old lender’s payoff department at least 30 days before closing whether they will sign an assignment of mortgage rather than a satisfaction.
Does a co-op qualify for a CEMA?
No. Co-op apartments are not subject to mortgage recording tax in the first place because the loan is secured by stock and a proprietary lease rather than by real property. There is nothing to save with a CEMA on a co-op.
Does a HELOC qualify?
Yes, in theory — a home equity line of credit recorded against real property is a mortgage for these purposes and can be CEMA’d. In practice, lenders are far less willing to assign HELOCs than first mortgages, and the smaller principal balances often make the fee load uneconomic.
Can I do a CEMA on my own without an attorney?
Not realistically. The assignment of mortgage, the gap mortgage, the consolidation agreement, and the Section 255 affidavit all have technical drafting requirements under the NYC Department of Finance recording checklist. A title company and a closing attorney handle the package as a matter of course; an unrepresented borrower cannot.
What is the deadline to recover an overpayment?
Two years from the date the recording office received the erroneous payment, per Form MT-15.1. The deadline is strict.
Where can I confirm the exact rate before closing?
The combined NYC and NYS rates and the calculation tool live on the NYC Department of Finance mortgage recording tax page. ACRIS includes a Calculate Taxes / Fees button with a Mortgage Recording Tax tab that lets the borrower confirm the figure the title company quoted.
Bottom Line
For a NYC homeowner refinancing a mortgage with $200,000 or more of preserved principal, a CEMA is almost always worth doing. The mechanics involve an assignment of mortgage from the old lender to the new one, a gap mortgage for the new money, a consolidation agreement that ties them together, and a Section 255 affidavit that tells the City Register why the consolidated principal is not being taxed all over again. The tax savings run roughly $1,925 per $100,000 of old balance preserved at 2026 rates. The fee load runs $2,000 to $4,000. Run those numbers against your loan size before signing a payoff letter.
If a CEMA was contemplated and then dropped at the closing table without your attorney walking you through the math, ask before signing. The figure is large enough to be worth the phone call — and the two-year MT-15.1 refund window is short enough that a mistake caught late is a mistake that can stick.
Tax advice in this article is informational. Consult a tax professional or NYC Department of Finance for your specific situation.
Primary Sources
- NYC Department of Finance — Mortgage recording tax
- NYS Department of Taxation and Finance — Mortgage recording tax
- Form MT-15, Mortgage Recording Tax Return (PDF)
- NYC Department of Finance — Document recording checklist (PDF)
- ACRIS — Automated City Register Information System
- NY Tax Law §253, §253-a, §255; NYC Administrative Code Title 11, Chapter 26
