Mortgage Novation: What it is, How it Works, and Advantages

June 30, 2026

Any modification to the original terms of a mortgage loan is done through a Mortgage Novation. It is a renegotiation of the credit granted by the bank, and it is completely legal and valid.

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What is a mortgage novation?

Basically, a mortgage novation is an agreement between the mortgage debtor and the bank. It is done to change one or more conditions of the original mortgage loan, either to improve them or adapt them to current circumstances. 

It is a legal avenue used to avoid canceling the existing contract and formalizing a new one. Instead, there is simply a renegotiation of key elements of that contract, such as:

  • The agreed interest rate
  • Amortization period
  • Outstanding principal amount
  • Guarantees 
  • Loan holders, among others.

How does it work?

A mortgage novation is more commonly used in commercial real estate transactions. This doesn't mean residential contracts don't use it, just that it's less common in this market. 

A novation can be easier to perform in a residential transaction because it generally involves fewer parties: buyer and seller. Let's look at how some forms of novations work in the real estate sector: 

  • An owner or tenant of a commercial space who wants to transfer the lease agreement.
  • A homeowner with a mortgage wants to sell to someone who will assume full responsibility for the outstanding portion of the mortgage.
  • An inspection reveals an issue, and the buyer and seller decide to reduce the purchase price to cover the cost of necessary repairs.
  • Replacing the titleholder of a real estate investor with the name of a newly formalized entity, such as an LLC or limited liability company.
  • Contractors want to transfer certain work to a subcontractor with the client's approval. 

In each of these scenarios, the new contract will replace the existing one through novation. In the first two cases, transferring the responsibilities of the existing contract to a new party may be preferable.

This could also improve a company's reputation and credit rather than canceling a contract or defaulting on a loan. Terminating an already signed agreement can lead to undesirable consequences. 

The Best Solution

The best approach will always be an attempt to renegotiate terms or substitute one of the parties. In a home sale, an inspection contingency can provide more leeway to terminate the contract.

This does not incur financial consequences, such as the return of the earnest money deposit to the seller. However, depending on the market, the buyer or seller might prefer a transaction through novation. 

When a novation transfers a mortgage or other financial obligation to a third party, you must be very careful. The lender will likely require a thorough financial and background check of the buyer. 

Advantages

Among the most notable advantages of novating the mortgage we can mention these:

  • Allows for interest reduction 
  • Allows for paying less interest
  • Allows for extending or shortening the repayment period
  • Allows for changing terms without needing to switch banks
  • Allows for improving the monthly payment to adapt it to the financial situation
  • Avoids the costs and procedures of a subrogation or new mortgage

You might be interested in: what mortgage subrogation is.

How is a mortgage novation done?

To proceed with a novation, you need to follow some essential steps and verify other important details.

Review of current conditions

Before requesting a mortgage novation, you need to know the details of your current loan. Review the contract and check elements such as interest rate, amortization period, monthly payments, and fees.

Research and compare with other banks

Analyze offers from other financial institutions and the conditions of the entire real estate market in general.

Contact your lending institution

If you've decided to request a novation because it's beneficial for you, you should contact your current financial institution. Inform them of your desire to change the loan conditions.

Negotiation phase

Begin new mortgage negotiations with the bank, and don't forget to consider the elements you want to improve.

Evaluate all costs

Make sure you have considered the subrogation fee, as these costs could alter the benefit of the novation.

Record the agreement in a Notarial Deed

If you reach a satisfactory agreement with the mortgage bank, you must go to the Notary as soon as possible and sign the preliminary deed. Afterwards, you can execute the novation deed.

Mortgage modification

Once you have formalized the novation, all the terms of your mortgage will be modified in accordance with the terms discussed in the new contract.

You might be interested in: mortgage renewal.

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What changes are permitted?

Novation can allow for the following changes:

Change the reference rate

In other words, the interest rate you are paying can be changed. This can be from variable to fixed or vice versa, and doing so in a timely manner could, in some cases, lead to significant savings.

Term modification

Put differently, you can modify the period over which you must repay the money the bank lent you, and you can extend or shorten it.

Prepay principal

Although similar to the above, this involves agreeing to repay the money early, and it's done when the client has savings and wants to pay a portion of the money back to the bank in advance. In this way, the amortization or repayment period is also reduced.

Change fees or associated products

You can request the removal of some conditions that were initially associated with the loan.

Extend the loan

If agreed upon, you can obtain more financing without having to apply for a new loan or any other type of credit.

Change loan collateral

Any collateral you offered when your loan was agreed upon can be changed when you request it. Naturally, this requires an agreement with the bank, which will likely require new collateral or its equivalents.

Request a grace period

If you are unable to meet your payment obligations, you can ask the bank for a grace period. This means temporarily suspending payments, either fully or partially, for the loan during an agreed-upon period.

Remove abusive clauses

It may happen that after signing the mortgage agreement, you discover some clauses are abusive. In such a case, you have the right to ask the bank to remove these clauses.

When can I request a mortgage novation?

Novation, understood as the legal mechanism that allows renegotiating the terms of a mortgage agreement, can be requested under certain circumstances. For example, you can request it when:

  • Interest rates change
  • If you need to reduce your monthly payment 
  • If you want to change the interest rate, from variable to fixed or vice versa

How much does it cost and who pays for it?

Novation fees generally range between 0% and 1% of the loan amount. They also represent the commission charged by the bank for the transaction. 

Eventually, for a novation involving a capital increase, you will also have to pay, which amounts to approximately 300 euros on average. These are the expenses you must pay. 

But the good news is that most of the costs related to mortgage novation must be paid by the bank by law. Here's a bit more detail:

Novation costs you pay

The commission for this, whose price is indicated in the mortgage deed, can be between 0% and 1% of the amount. However, it is subject to legal limitations that the bank must respect. 

Home appraisal, which costs around 300 euros, according to the appraiser. You need it because the bank may want to update your home's value to assess whether to approve the novation. 

Novation costs paid by the bank

According to Law 5/2019 and the Directorate General of Taxes, these are the expenses the bank must pay when modifying a loan using novation:

Notary fees, which cost between 0.2% and 0.5% of the loan amount. 

Property Registry fees, which average between 0.1% and 0.25% of the amount. 

The administrative agency fees, which can range from 300 to 500 euros. 

The IAJD, or Stamp Duty on Documented Legal Acts, costs between 0.5% and 2% of the increase in the mortgage price. This applies to interest, principal, or other amounts related to the modification. 

Disadvantages

Among the disadvantages that novation entails, we can mention:

  • Not always approved
  • Associated costs
  • Process complications
  • Potential loss of conditions
  • The need for a new appraisal
  • Payment of Stamp Duty on Documented Legal Acts

Tips for mortgage novation

To proceed with novating your mortgage, first consider if it's a better option for you, but also, follow these tips:

  • Review and compare with other banks
  • Communicate and negotiate with your bank
  • Legally formalize every agreement
  • Consider a subrogation
  • Plan the entire process very carefully

Is it better to novate or subrogate a mortgage?

Basically, this modification of agreed-upon terms in your mortgage with the same bank could be more economical. This is because subrogation involves changing banks. 

Potentially, novation avoids the expense of a new appraisal or cancellation fee. On the other hand, subrogation could offer better terms if you are looking for a change of bank.

Ultimately, choosing between novation or subrogation will depend on what you've planned to improve your debtor status. It's simply a matter of weighing your desired outcome against the implications of either of these legal options.

Frequently Asked Questions (FAQs)

Can I get a novation if I have a mortgage with benefits?

Yes, you can indeed get a novation for your mortgage, even if you have a mortgage with benefits.

Which banks allow mortgage novation?

Banks that allow mortgage novation include:

  • Santander 
  • Sabadell 
  • Unicaja 
  • BBVA 
  • Bankinter 
  • ING 
  • Caja Rural Group

Does novation change the mortgage term?

Yes, a mortgage novation can indeed change the mortgage term, among other things.

Can a borrower be removed in a novation?

Yes, a novation allows for the removal of a borrower, provided the bank agrees.

How many times can a mortgage be novated?

Legally, there's no limit to how many times a mortgage can be novated, but keep in mind that each novation incurs a cost.

Can a novation be done if my mortgage is in arrears?

Generally speaking, it's not possible to do a mortgage novation if you are in arrears.

How long does the mortgage novation process take?

The process of mortgage novation can take between one and three months. The delay will depend on the complexity of the negotiations and the bank's speed in processing your application.

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Conclusion

If you are considering applying for a mortgage novation, it's always advisable to consult with experts. Simply contact us,consult with Domoblock!

Sergio Navarro

Expert in blockchain, investments, and personal finance

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Madrid | Tres cantos

Calera, 3

DOMO-TCA-1
Flipping building

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