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Modification of Lease Terms — Supplemental Deed Format and Procedure 2026

How to modify lease terms through supplemental deed. Rent revision, term extension, permitted use change, landlord consent, registration, stamp duty.

Vikas Sharma Tax & Compliance Expert

March 25, 2026 2 min read 77 views Updated Jul 2, 2026

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When Lease Modification Is Needed

Lease terms may need modification during the lease period for: (a) Rent revision: Market conditions change — parties agree on increased/decreased rent. (b) Term extension: The original lease period is about to expire and parties want to continue without executing a fresh deed. (c) Change of use: Residential to commercial use (or vice versa) with landlord's consent. (d) Addition of premises: The lessee needs additional space. (e) Change of conditions: Modifying maintenance obligations, sub-letting permissions, or insurance requirements. Modifications are documented through a Supplemental Lease Deed — read together with the original lease.

Specimen Supplemental Lease Deed

[Illustrative format]

SUPPLEMENTAL DEED TO LEASE DEED

This Supplemental Deed is made on [Date] between [Lessor Name] (Lessor) and [Lessee Name] (Lessee).

WHEREAS: (a) The parties entered into a Lease Deed dated [Date], registered at SRO [Name], Document No. [Number] ("Original Lease"), for the property at [Address]. (b) The parties now desire to modify certain terms of the Original Lease as set out below.

NOW THIS DEED WITNESSETH:

1. Clause [X] of the Original Lease (Monthly Rent) is hereby amended to read: "The monthly rent shall be Rs. [New Amount] with effect from [Date]."

2. Clause [Y] of the Original Lease (Term) is hereby extended by [X] years — the revised expiry date shall be [New End Date].

3. All other terms and conditions of the Original Lease remain unchanged.

4. In case of conflict between this Supplemental Deed and the Original Lease: this Supplemental Deed shall prevail.

SIGNATURES + WITNESSES

Registration and Stamp Duty

If the modification extends the lease beyond the total of 1 year (original + extension): REGISTRATION is mandatory. Stamp duty: (a) rent increase — duty on the ADDITIONAL rent for the remaining/extended period, (b) term extension — duty on the rent for the EXTENSION period, (c) change of use/conditions — nominal stamp duty as an agreement. Always register the supplemental deed at the SAME SRO as the original lease — for cross-referencing.

Landlord's Consent

Both parties must consent to the modification — a unilateral change is invalid (unless the original lease permits one party to modify certain terms, which is rare). The supplemental deed must be signed by BOTH the lessor and lessee. If the property has been mortgaged: the mortgagee's consent may also be needed (if the mortgage deed restricts lease modifications).

Disclaimer: This article is for informational purposes only and does not constitute legal or professional advice. While every effort has been made to ensure accuracy based on the latest laws and amendments, readers should consult a qualified professional before acting on any information provided. For expert assistance, contact us.

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Frequently Asked Questions

Must a supplemental lease deed be registered?

If the modification results in the TOTAL lease period exceeding 1 year: YES — registration is mandatory under Section 17(d) of the Registration Act. Example: original lease of 8 months + extension of 6 months = 14 months total → registration required. If the total remains within 1 year: registration is optional but recommended. In Maharashtra: registration is mandatory for all lease/license modifications regardless of period.

What stamp duty applies on lease modification?

Stamp duty depends on the nature of modification: (1) RENT INCREASE: duty on the ADDITIONAL rent for the remaining/extended period, (2) TERM EXTENSION: duty on the rent for the EXTENSION period (not the original period), (3) CHANGE OF USE/CONDITIONS: nominal stamp duty as an 'agreement' (Rs. 100-500). The duty is calculated on the incremental value — not the total lease value. Always check the state stamp schedule for specific rates.

Can lease terms be modified verbally?

For leases that were REQUIRED to be in writing and registered (Section 107 TPA — leases exceeding 1 year): modifications must also be IN WRITING and registered. For leases within 1 year (which may be oral): verbal modifications may be valid — but are difficult to PROVE in disputes. Best practice: ALWAYS document modifications in writing — even for short-term leases. A written supplemental deed provides: (a) clear evidence of agreed changes, (b) protection for both parties, (c) enforceability in court.

Can the lessee unilaterally modify lease terms?

NO — lease modification requires MUTUAL CONSENT of both parties (unless the original lease specifically allows one party to modify certain terms — which is rare). The lessee cannot unilaterally: (a) change the use of premises, (b) reduce rent, (c) extend the term. Similarly: the lessor cannot unilaterally increase rent or change conditions (subject to rent escalation clauses in the original lease and Rent Control Act provisions). Any modification without mutual consent is VOID and does not affect the original lease terms.

What if the original lease has a built-in escalation clause?

If the original lease includes a RENT ESCALATION clause (e.g., '10% increase every 2 years'): the escalation happens AUTOMATICALLY — no supplemental deed is needed. The escalation clause is self-executing — the increased rent becomes payable on the specified date without any further documentation. However: if the parties want to CHANGE the escalation (different percentage, different frequency, or waive escalation): a supplemental deed is needed. Best practice: include clear escalation terms in the original lease to avoid the need for periodic supplemental deeds.