Civil Law and UAE: Novation and Substitution of Obligations

1. Introduction

Novation is a legal mechanism through which an existing obligation or contractual relationship is replaced by a new obligation or contractual relationship, generally with the intention that the original obligation is discharged.

In its simplest form:

Old obligation → agreement of substitution → new obligation

For example:

A owes B AED 1 million.
A, B and C agree that C will become the debtor instead of A, and B accepts C as the new debtor.

The intended result is:

A is released → C becomes debtor → B remains creditor.

Novation is therefore different from merely changing a contractual term.

The distinction is particularly important in:

corporate reorganisations;

M&A transactions;

construction contracts;

financing;

project finance;

guarantees;

subcontracting;

real-estate transactions;

debt restructuring;

replacement of contractors;

transfer of entire contractual relationships.

The current onshore UAE framework is Federal Decree-Law No. 25 of 2025 promulgating the Civil Transactions Law, effective 1 June 2026. The new law separately regulates the transfer of rights and obligations and places particular importance on consent when an obligation/debt is transferred. (Mondaq)

2. Meaning of Novation

Novation can involve:

A. Change of debtor

Old debtor → New debtor

Example:

A owes B AED 10 million.

C agrees to assume A's debt and B accepts C as debtor.

B. Change of creditor

Old creditor → New creditor

Example:

A owes B AED 5 million.

C replaces B as creditor under an agreement intended to substitute the original legal relationship.

C. Change of obligation

The parties may replace the original obligation with a substantially different obligation.

Example:

Original obligation: repay AED 5 million immediately.

is replaced by:

New obligation: repay AED 5 million through a five-year restructuring arrangement.

But not every amendment constitutes novation.

That distinction is fundamental.

3. Novation vs Amendment

An amendment modifies an existing contract.

A novation replaces the existing legal relationship.

Amendment

Original contract remains alive + one or more provisions change.

Novation

Original obligation/contract is replaced + new legal relationship takes its place.

This distinction was emphasized in Vision Investment and Holdings Ltd v Mahdi Amjad [2022] DIFC CFI 053. The DIFC Court observed that an amendment does not necessarily replace the original agreement; normally, an amendment may substitute only part of the contractual arrangement. (DIFC Courts)

Although this is a DIFC decision, the conceptual distinction is highly useful.

4. Novation vs Assignment

These should never be treated as identical.

The new UAE Civil Transactions Law contains a dedicated framework for transfer of obligations, and current commentary identifies Articles 418–423 as the principal provisions concerning transfer of debt. (Law Gratis)

5. Current UAE Law: Transfer of Obligations

The 2025 Civil Transactions Law separately regulates:

transfer of rights;

transfer of obligations/debts.

For obligations, the new framework emphasizes consent of the relevant parties.

Current commentary identifies:

Article 418 — transfer of debt/obligation;

Article 419 — arrangements between original and new debtor and their effect against the creditor;

Article 420 — relationships arising between original debtor and transferee;

Article 421 — securities and guarantees connected with transferred obligations;

Article 424 — special treatment of secured debt connected with mortgaged property. (Law Gratis)

This is especially important because substitution of a debtor can materially affect the creditor's risk.

6. Essential Elements of Novation

A valid novation normally requires examination of the following:

1. Existing obligation

There must be an existing legal obligation or contractual relationship.

2. New obligation or substituted party

Something legally significant must replace the original arrangement.

3. Consent

The relevant parties must consent to the substitution.

4. Intention to novate

The parties must intend the original obligation to be replaced rather than merely amended.

5. Validity of the new obligation

The replacement arrangement itself must satisfy the legal requirements of a valid obligation.

6. Release of original obligation

Where true novation occurs, the original obligation is discharged to the extent replaced.

7. Treatment of security

Guarantees, mortgages and other security must be separately examined.

7. Intention to Novate

This is one of the most important principles.

The court does not necessarily accept the label chosen by the parties.

A document called:

"Novation Agreement"

does not automatically constitute a novation.

The court can examine:

wording;

contractual structure;

correspondence;

conduct;

payment;

surrounding circumstances;

commercial purpose;

whether the original obligation was intended to survive.

Therefore:

Substance is more important than the title of the document.

This principle is particularly evident in the UAE jurisprudence concerning novation and in Abu Dhabi Court of Cassation Judgment No. 46/2020, discussed below.

8. Case Law 1 — Abu Dhabi Court of Cassation, Case No. 46/2020

This is a particularly relevant UAE authority concerning alleged novation of debt.

The dispute involved an arrangement said to replace an existing debt.

The Court examined the substance of the arrangement and whether the parties had actually intended to extinguish the original debt and replace it with a new obligation.

The Court did not treat the parties' description of the transaction as conclusive.

Principle

A transaction is not a novation merely because the parties describe it as one.

The court must determine whether there was a genuine substitution of the original obligation.

Importance

This is particularly important when drafting:

debt restructuring agreements;

settlement agreements;

refinancing arrangements;

amended facility agreements.

9. Case Law 2 — Taaleem PJSC v National Bonds Corporation PJSC & Deyaar Development PJSC [2010] DIFC CFI 014

This is one of the most significant UAE-based authorities on novation.

The dispute concerned the Sky Gardens property and financing arrangements involving:

Taaleem;

National Bonds Corporation;

Deyaar.

The issue was whether Deyaar had become responsible for Taaleem's obligations to National Bonds through a novation.

The DIFC Court found that the parties had agreed to transfer Taaleem's rights and obligations to Deyaar and treated the arrangement as a novation of the existing financing structure. (DIFC Courts)

Principle

The case demonstrates that a novation can replace the original contractual position where the parties' common intention and conduct establish the substitution.

Importance

It is particularly relevant to:

financing;

property transactions;

tripartite agreements;

corporate restructuring.

10. Case Law 3 — Deyaar Development PJSC v Taaleem PJSC & National Bonds Corporation PJSC [2015] DIFC CA 010

The DIFC Court of Appeal subsequently considered the same transaction.

The Court concluded that, through novation, Deyaar assumed Taaleem's liabilities and obligations to National Bonds, including the relevant financing obligations. The Court examined the parties' communications and conduct in reaching that conclusion. (DIFC Courts)

Principle

A novation can substitute one party for another where the parties' agreement and conduct establish a common intention to transfer the relevant contractual obligations.

Significance

This is an especially useful authority because it demonstrates the difference between:

mere assignment

and

full substitution of contractual obligations.

Jurisdictional qualification

This is a DIFC Court decision. It is not binding precedent on the mainland UAE courts, but it is a significant UAE-based persuasive authority.

11. Case Law 4 — Lakhan v Lamia [2021] DIFC CA 001

This case concerned a construction subcontract.

The original subcontract was between the defendant and the original contractor. Subsequently, the parties entered into a novation agreement under which the developer took the place of the original contractor.

The novation agreement also changed the dispute-resolution mechanism, providing for Dubai Courts rather than the original arbitration arrangement. (DIFC Courts)

Principle

Novation can change not merely the identity of a contracting party but potentially the legal framework governing the substituted contractual relationship, depending upon the wording and effect of the novation agreement.

Importance

This is highly relevant to construction projects where:

developer replaces contractor;

main contractor replaces subcontractor;

project company changes;

contractual dispute-resolution arrangements are revised.

12. Case Law 5 — International Electromechanical Services Co LLC v Al Fattan Engineering LLC & Al Fattan Properties LLC [2012] DIFC CFI 004

This was another construction-related dispute involving a novation.

The original subcontractor, PECD, was replaced by another contractor. The relevant parties communicated their consent to the novation, and the subcontractor subsequently dealt with the replacement contractor. (DIFC Courts)

Principle

A novation can be established through:

contractual documents;

correspondence;

consent;

conduct;

subsequent performance.

Practical significance

Construction projects frequently require replacement of:

main contractor;

subcontractor;

employer;

project company.

A properly structured novation prevents uncertainty concerning:

accrued liabilities;

payment rights;

warranties;

defects;

arbitration;

insurance;

indemnities.

13. Case Law 6 — Parking District Solutions LLC v Ritz-Carlton Hotel Company Ltd & Hospitality Management Ltd [2022] DIFC CFI 002

The claimant relied upon a document described as a Novation Agreement.

The Court examined whether the proposed substitution was legally effective.

Because the relevant contracting party had not participated in the purported novation, the Court held that the arrangement could not bind that party as a novation.

The Court stated that a novation could not be effective without the necessary agreement of the relevant contracting parties. (DIFC Courts)

Principle

A party cannot ordinarily be substituted out of a contractual relationship through an agreement to which it has not consented.

Importance

This is one of the clearest practical lessons:

Do not assume that a bilateral transfer between two companies automatically novates a three-party contract.

14. Case Law 7 — Mibot v Mfast [2022] DIFC ARB 035

The dispute concerned a construction contract originally entered into between Mfast and another contractor.

A subsequent novation agreement transferred the relevant interest and obligations to Mibot.

The case involved questions concerning:

effect of the novation;

contractual jurisdiction;

arbitration;

relationship between the original contract and the novation agreement. (DIFC Courts)

Principle

A novation agreement must be examined alongside the original contract.

The court must determine:

which clauses survive;

which clauses are replaced;

which dispute-resolution provisions apply;

whether the novation itself contains a different jurisdiction clause.

Importance

This is particularly relevant where a novation contains:

"All terms of the original agreement remain unchanged except as expressly provided."

The parties must then identify exactly what has been substituted.

15. Case Law 8 — Five Real Estate Development LLC v Reem Emirates Aluminium LLC [2020] DIFC TCD 009

This construction dispute involved novation of subcontracts as part of a change in project management.

The judgment recognized that the novation of the main contractor's subcontracts could materially change the management and contractual structure of the project. (DIFC Courts)

Principle

Novation can produce significant legal consequences beyond simply changing the name of a contracting party.

It may affect:

responsibility for performance;

project management;

contractual rights;

liabilities;

claims;

contractual defences.

16. Substitution of Debtor

The most straightforward form is:

Original debtor → New debtor

Example:

A owes B AED 20 million.

C agrees to assume A's debt.

B accepts C as the new debtor.

The intended result is:

A released
C liable
B retains the claim

Under the current Civil Transactions Law, creditor consent is particularly important because the creditor is being asked to accept a potentially different credit risk. The current debt-transfer provisions therefore distinguish between arrangements made internally between the original and new debtor and the transfer's effect against the creditor. (Law Gratis)

17. Why Creditor Consent Matters

Suppose:

A = wealthy company
C = financially weak company
B = creditor.

If A and C privately agree:

"C will take over A's debt."

B's position may be substantially worsened.

Therefore, the law cannot simply allow A to release itself from the debt without considering B's rights.

This explains the normative importance of creditor consent.

18. Substitution of Creditor

A different situation occurs when the creditor changes.

Example:

A owes B AED 5 million.

B is replaced by C.

Now:

A owes C AED 5 million.

This must be distinguished from an ordinary assignment of receivables.

An assignment may transfer the creditor's right while leaving the underlying legal relationship substantially intact.

A true novation may instead create a substituted contractual relationship.

19. Substitution of the Entire Contract

Novation is particularly common in construction.

Original

Developer ↔ Contractor

After novation

Developer ↔ Replacement Contractor

The replacement contractor may assume:

performance obligations;

warranties;

defects liability;

payment rights;

delay obligations;

indemnities;

insurance obligations.

The original contractor may be released, depending on the agreement.

20. Accrued Rights and Liabilities

A major drafting issue is whether novation releases past liabilities.

Suppose:

Contractor A caused delay before novation.

Then:

Contractor B takes over the contract.

Does B automatically become liable for A's earlier delay?

Not necessarily.

The novation agreement should expressly address:

accrued claims;

pre-novation breaches;

post-novation breaches;

warranties;

indemnities;

payment obligations;

outstanding variations;

retention;

liquidated damages.

A court will examine the wording and legal effect of the agreement.

21. Guarantees and Security

This is one of the most important consequences of debt substitution.

Under the current 2025 Civil Transactions Law, Article 421 provides special rules concerning securities and guarantees attached to a transferred obligation. Current legal commentary emphasizes that although security connected with the transferred debt may continue, the person who provided the guarantee/security is not necessarily bound to the new arrangement without the required separate and express consent. (Legal 500)

Example

A owes B AED 10 million.

C guarantees A's debt.

A's debt is transferred to D.

Question:

Does C automatically guarantee D's new obligation?

The answer cannot simply be assumed.

The relevant statutory rules and the guarantor's consent must be examined.

22. Novation and Mortgages

Novation can also interact with secured real estate.

The new law contains a specific provision concerning mortgaged property.

A sale or transfer of mortgaged property does not by itself automatically transfer the secured debt to the purchaser.

A separate agreement and the required mortgagee consent are relevant. (Legal 500)

Thus:

Transfer of property ≠ automatic transfer of debt.

This is a highly important distinction in real-estate finance.

23. Novation and Settlement

A settlement may sometimes produce novation, but not every settlement is a novation.

Example:

A owes B AED 1 million.

They agree:

B will accept AED 800,000 immediately in full settlement.

This could be:

compromise/settlement;

accord and satisfaction;

modification;

novation,

depending upon the terms and legal intention.

The court should examine the substance of the agreement.

24. Novation and Amendment

Consider:

Original contract

A must deliver 1,000 units by 1 December.

New agreement

A must deliver 1,000 units by 15 December.

This is normally an amendment.

But:

Original contract

A must supply goods.

New arrangement

C entirely replaces A as supplier, assumes all obligations and A is released.

This is much closer to novation.

25. Novation and Assignment in Construction

Suppose:

Employer E
Contractor A
Subcontractor B

A wants B's contract transferred to C.

Assignment

A may transfer certain rights, subject to the contract and applicable law.

Novation

E, A and C agree:

C replaces A and assumes A's contractual rights and obligations.

This is a much more comprehensive substitution.

The construction cases Lakhan v Lamia, International Electromechanical Services, and Mibot v Mfast demonstrate why novation documentation must address both contractual obligations and dispute-resolution provisions. (DIFC Courts)

26. Novation and Arbitration Clauses

This is a particularly important issue.

Suppose the original contract says:

"All disputes shall be referred to arbitration."

The novation agreement says:

"Dubai Courts have exclusive jurisdiction."

Which clause applies?

The answer depends upon:

wording of the novation;

whether the arbitration clause was expressly retained;

whether the entire original contract was replaced;

governing law;

interpretation of the novation agreement.

Lakhan v Lamia [2021] DIFC CA 001 is an important illustration because the novation agreement contained a different dispute-resolution provision from the original subcontract. (DIFC Courts)

27. Novation and Consent

Consent is central because novation changes the identity or substance of the legal obligation.

Consider:

A + B have a contract.

A and C cannot normally declare:

"C replaces B."

without B's participation where the legal effect is intended to substitute B in the contractual relationship.

This is why the Parking District Solutions case is useful: the Court rejected the effectiveness of a purported novation where the necessary contracting party had not consented. (DIFC Courts)

28. Novation and Conduct

Consent does not necessarily need to be analysed only through one isolated document.

Courts may examine:

correspondence;

payment;

acceptance of performance;

invoices;

board resolutions;

possession;

subsequent conduct;

communications between parties.

Deyaar v Taaleem/National Bonds demonstrates the significance of parties' communications and conduct in establishing common intention to substitute contractual obligations. (DIFC Courts)

29. Effect of Successful Novation

Where a true novation is established:

1. Original obligation is discharged

To the extent replaced.

2. New obligation becomes operative

The new contractual relationship governs.

3. Original party may be released

Subject to the agreement and applicable law.

4. New party becomes responsible

The substituted party assumes the specified obligations.

5. Securities require examination

Guarantees and security do not necessarily follow automatically.

6. Accrued rights require examination

Past breaches and existing claims should be addressed expressly.

30. What Happens If Novation Fails?

If the alleged novation is ineffective:

The original obligation may continue.

For example:

A owes B AED 10 million.

A signs an agreement with C saying:

"C will pay B."

But B never consents to the substitution.

Depending on the applicable law and agreement, the result may be:

A remains liable to B.

This is why a failed novation can produce substantial litigation.

31. Novation and Guarantees — Practical Example

Before novation

A → debtor
B → creditor
C → guarantor

After proposed novation

D → new debtor
B → creditor
C → guarantor?

The final question cannot simply be answered:

"Yes."

The guarantee must be examined under the applicable statutory rules and the guarantor's consent.

Under Article 421 of the new Civil Transactions Law, particular attention must be paid to whether the guarantor or security provider separately and expressly agreed to remain bound. (Legal 500)

32. Novation and Corporate Restructuring

Novation is common when:

Company A merges into Company B;

a subsidiary replaces its parent;

a project SPV changes;

a business is sold;

a contractor is replaced;

a financing facility is transferred.

The parties should determine whether the transaction requires:

assignment, transfer of obligation, or full novation.

Using the wrong mechanism can create uncertainty concerning:

liability;

guarantees;

warranties;

arbitration;

accrued claims;

third-party rights.

33. Novation and Third Parties

A novation primarily concerns the contractual parties.

A third party should not automatically be burdened merely because the original parties decided to restructure their relationship.

This is consistent with the broader contractual principle in the new Civil Transactions Law that:

a contract does not ordinarily create an obligation upon a third party, although it may grant a right to that third party.

That principle appears in Articles 227–228 of the new law. (UAE Legislation)

34. Important Distinction: Novation vs Substituted Performance

There is another important distinction.

Under the DIFC Contract Law, substituted performance can discharge an obligation where the creditor accepts a different performance from that originally due.

In Sig Middle East LLC v Perfect Building Materials LLC [2024] DIFC CFI 057, the Court distinguished:

substituted performance; and

accord and satisfaction.

The Court explained that accepting alternative performance can discharge the original obligation, whereas an accord may involve a new contractual arrangement under which the original obligation is suspended until the substitute is performed. (DIFC Courts)

Although this is DIFC law, it provides a useful analytical distinction.

35. Novation vs Substituted Performance

36. Drafting Requirements for a UAE Novation Agreement

A carefully drafted novation should identify:

1. Original agreement

Date, parties and contract number.

2. Existing obligations

Precisely identify what is being replaced.

3. New party

Clearly identify the incoming debtor/contracting party.

4. Release

State whether the outgoing party is completely released.

5. Effective date

Specify the exact date and time from which substitution operates.

6. Accrued liabilities

State who remains responsible for pre-novation breaches.

7. Guarantees

Identify which guarantees survive.

8. Security

Address mortgages, pledges and other security interests.

9. Dispute resolution

State whether arbitration/court clauses survive.

10. Governing law

Specify the applicable legal system.

11. Notices

Specify notices required for effectiveness.

12. Entire agreement

Clarify whether the novation replaces or merely amends the original contract.

37. Common Mistakes

Mistake 1

Calling an amendment a "novation."

Mistake 2

Failing to obtain creditor consent when replacing a debtor.

Mistake 3

Assuming a guarantee automatically survives.

Mistake 4

Ignoring accrued liabilities.

Mistake 5

Failing to address arbitration.

Mistake 6

Assuming transfer of property automatically transfers secured debt.

Mistake 7

Assuming a document's title determines its legal character.

Mistake 8

Using a bilateral agreement where a tripartite novation is legally required.

38. Case-Law Summary

The DIFC authorities are persuasive UAE-based authorities only; they apply DIFC law and are not binding precedents for mainland UAE courts. The Abu Dhabi Cassation authority is particularly useful for the onshore UAE discussion.

39. Examination Formula

For an exam answer, use:

Existing obligation + clear intention to substitute + required consent + valid new obligation → Novation → discharge/substitution of original obligation → new legal relationship

Then distinguish:

Assignment = transfer of a right

Transfer of debt = substitution of debtor

Novation = replacement of the existing legal obligation/contractual relationship

Amendment = modification without necessarily extinguishing the original contract

Substituted performance = acceptance of different performance

40. Conclusion

Novation and substitution of obligations are important mechanisms through which UAE civil law allows an existing contractual or debt relationship to be replaced by a new legal relationship.

The most important principles are:

There must be an existing obligation.

There must be a genuine substitution rather than merely an amendment.

The relevant parties must provide the required consent.

The parties' intention is critical.

The original obligation may be discharged when true novation takes effect.

The incoming party assumes the substituted obligations.

Guarantees and security require separate analysis.

Accrued liabilities should be expressly addressed.

Arbitration and jurisdiction clauses must be carefully preserved or replaced.

The title "Novation Agreement" alone does not establish novation.

The modern UAE position is particularly significant because Federal Decree-Law No. 25 of 2025, effective 1 June 2026, provides a more structured statutory framework for transfers of obligations, including the consequences for guarantees and security. Current legal commentary emphasizes the need to distinguish carefully between assignment, debt transfer and full contractual novation. (Law Gratis)

The central principle can therefore be remembered as:

Novation is not merely a change in paperwork; it is a legally significant substitution of an existing obligation or contractual position.