The substantive heart of the Indian Stamp Act, 1899 is not its operative sections but its Schedule I — the tariff that fixes how much duty each class of instrument must bear. Sections 3 to 31 tell you when and how an instrument is taxed; Schedule I tells you how much. For the judiciary and CLAT-PG aspirant, the recurring examination targets are the five workhorse instruments — conveyance, lease, mortgage, power of attorney and gift — because each turns on a separate definition in Section 2, a separate Article in Schedule I, and a distinct body of case law on valuation, undervaluation and chargeability. This article maps each instrument to its charging Article, explains the consideration on which duty is computed, and works through the leading authorities, including Member, Board of Revenue v. Arthur Paul Benthall, Hindustan Steel Ltd. v. Dilip Construction Co. and Suraj Lamp & Industries (P) Ltd. v. State of Haryana.
The Scheme: Charging Sections Plus the Schedule I Tariff
Duty is imposed by the conjoint operation of the charging provision and the tariff. Section 3 makes every instrument mentioned in Schedule I chargeable with the duty of the amount indicated in that Schedule, provided the instrument is executed in India (or, if executed outside India, relates to property situate or a matter done in India). The Schedule is therefore not a mere annexure but the operative measure of liability — Section 3 is empty without it. The amount of duty payable for a given instrument is determined by reading three things together: the definition of the instrument in Section 2, the charging Article in Schedule I, and any special computation rule in Sections 20 to 28 (for example, valuation of foreign currency under Section 20, valuation of an annuity under Section 25, or set-off of debt under Section 24).
Two structural sections govern overlap. Section 5 charges an instrument comprising or relating to several distinct matters with the aggregate of the duties that separate instruments would attract. Section 6 charges an instrument falling within two or more descriptions in Schedule I with the highest of the competing duties (subject to nothing in the Act otherwise requiring less). The leading authority distinguishing these — and explaining why "matter", "transaction" and "description" are deliberately different words — is examined below. The reader should first revisit the liability of instruments to duty and the relevant statutory definitions before attempting the tariff, because the Article you choose depends entirely on how the instrument is classified.
Conveyance — Article 23 and Section 2(10)
The conveyance is the archetypal taxable instrument and the benchmark to which several other Articles refer. Section 2(10) defines "conveyance" inclusively: it includes a conveyance on sale and every instrument by which property, whether movable or immovable, is transferred inter vivos and which is not otherwise specifically provided for by Schedule I. The definition is deliberately residuary — its closing words make any transfer inter vivos a conveyance unless a more specific Article (lease, mortgage, gift, settlement, exchange, partition) captures it first. Article 23 of Schedule I charges a conveyance with duty computed on an ad valorem basis on the amount or value of the consideration for the conveyance; under the Schedule I-B regime adopted by most States the measure is the market value of the property conveyed.
The consideration on which duty bites is governed by Section 27, which commands that the consideration and "all other facts and circumstances affecting the chargeability of any instrument with duty" be "fully and truly set forth therein". Suppression invites the undervaluation machinery of Section 47-A. Where the property is transferred in consideration of a debt, Section 24 deems that debt to be the consideration for the conveyance, preventing a vendor and purchaser from disguising a sale as a release. The duty rate itself is a State subject — Entry 63 of the State List read with Entry 91 of the Union List — so the percentage varies, but the structure (ad valorem on consideration or market value) is uniform across States. For the contrast between when liability attaches and what document carries it, see the discussion at the Indian Stamp Act hub.
When a Power of Attorney Is Taxed as a Conveyance: Suraj Lamp
The most heavily examined modern development concerns the abuse of the so-called "SA/GPA/Will" transfer — a sale dressed up as an agreement to sell, an irrevocable general power of attorney and a will, executed together to evade conveyance duty, registration fee and capital gains tax. In Suraj Lamp & Industries (P) Ltd. v. State of Haryana, (2012) 1 SCC 656 : AIR 2012 SC 206, the Supreme Court (Raveendran, J.) held that such transactions do not convey title — "a power of attorney is not an instrument of transfer in regard to any right, title or interest in an immovable property" — and cannot be recognised as completed transfers under Sections 5 and 54 of the Transfer of Property Act, 1882.
Significantly for stamp law, the Court recorded with approval that States had amended their stamp legislation so that an irrevocable power of attorney authorising sale in favour of a non-family member, and an agreement of sale coupled with delivery of possession, attract the same stamp duty as a deed of conveyance. The decision thus confirms a vital principle: the nomen juris of the instrument does not control its duty; substance does. A POA that operates, in substance, to pass possession and the power to sell for consideration is taxed as a conveyance under Article 23, not at the nominal POA rate under Article 48. Compare this with the ordinary chargeability rules in liability of instruments to duty.
Lease — Article 35 and Section 2(16)
Section 2(16) defines "lease" to mean a lease of immovable property, and includes also (a) a patta; (b) a kabuliyat or other undertaking in writing, not being a counterpart of a lease, to cultivate, occupy or pay or deliver rent for immovable property; (c) any instrument by which tolls of any description are let; and (d) any writing on an application for a lease intended to signify that the application is granted. The definition is therefore broader than the contractual lease of the Transfer of Property Act, sweeping in pattas, kabuliyats and toll-farming writings.
Article 35 of Schedule I charges a lease on a sliding scale keyed to two variables — the term of the lease and whether a premium (salami / fine) is paid in addition to rent. The general structure is: (i) where the lease is for a term and rent only is reserved, duty is computed on the average annual rent, with the multiplier rising as the term lengthens (a lease in perpetuity being charged as if on a much larger capitalised rent); and (ii) where a premium or money advance is paid in addition to or in lieu of rent, that premium is charged as a conveyance on its amount, in addition to the rent-based duty. This is why an "agreement to lease" granting possession is dangerous: if it operates as a present demise it is a lease under Article 35, whereas a pure executory agreement to grant a lease in future is chargeable as an agreement. The classification — present demise versus future promise — is the recurring litigation point, and it again illustrates the substance-over-form rule that pervades stamp valuation under adjudication of stamp duty.
Mortgage Deed — Article 40 and the Possession Distinction
A "mortgage-deed" is defined in Section 2(17) to include every instrument whereby, for the purpose of securing money advanced or to be advanced by way of loan, or an existing or future debt, or the performance of an engagement, one person transfers, or creates to or in favour of another, a right over or in respect of specified property. Article 40 charges a mortgage deed at two different rates depending on possession:
(a) Mortgage with possession — where possession of the mortgaged property is given or agreed to be given — is charged at the conveyance rate (the same ad valorem duty as Article 23) on the amount secured, because economically it transfers the substance of ownership to the mortgagee. (b) Mortgage without possession — a simple mortgage where possession is not given — is charged at a substantially lower rate on the amount secured. The legislative logic is that a possessory mortgage approximates a conditional sale and so bears conveyance-level duty, whereas a simple mortgage merely creates a charge as security. When several instruments are employed for one mortgage transaction, the principal instrument rule in Section 4 confines the full duty to the principal deed and charges the ancillary instruments at a nominal one rupee.
Equitable Mortgage and the Coastal Gujarat Power Controversy
A mortgage by deposit of title deeds (an equitable mortgage under Section 58(f) of the Transfer of Property Act) is not charged under Article 40 but under Article 6 — "Agreement relating to deposit of title-deeds, pawn or pledge", ordinarily at a concessional rate compared with a registered simple mortgage. The duty bites only where a writing evidences or records the deposit; a bare oral deposit accompanied by handing over the deeds is not, by itself, an instrument and attracts no duty. But the moment a memorandum reduces the bargain to writing — recording the deposit, the debt and the security — it becomes a chargeable instrument.
The reach of Section 5 in multi-lender security documents was settled in Chief Controlling Revenue Authority v. Coastal Gujarat Power Ltd., (2015) 10 SCC 700. A single deed of hypothecation/mortgage executed in favour of a consortium of thirteen lenders for a power project was held to comprise distinct matters — one security transaction per lender — so that under Section 5 the instrument attracted the aggregate of the duties payable on thirteen separate security documents rather than a single charge. The decision is the leading modern authority on the difference between one instrument bearing one duty (Section 6) and one instrument embracing several distinct matters (Section 5), the latter triggering aggregation. It is the practical counterpart to the doctrinal distinction first drawn in Benthall, discussed next.
Power of Attorney — Article 48 and Section 2(21)
Section 2(21) defines "power of attorney" to include any instrument (not chargeable with a fee under the law relating to court fees for the time being in force) empowering a specified person to act for and in the name of the person executing it. Article 48 grades the duty by reference to the number of persons authorised and the nature of the authority: a fixed (often nominal) duty where the POA is given for the sole purpose of procuring registration or admitting execution of one or more documents; a low fixed duty where authority is given to one or more persons to act in a single transaction; and progressively higher fixed duties where more persons or more agents are involved or where the authority is general.
The pivotal qualification — repeatedly examined — is the POA given for consideration and authorising sale. Article 48 itself provides that when a power of attorney is given for consideration and authorises the attorney to sell immovable property, it is chargeable as a conveyance on the consideration. This statutory hook, reinforced by Suraj Lamp above, is what defeats the GPA-sale device. For an ordinary, gratuitous agency POA, however, the modest fixed duty under Article 48 applies, and the instrument is not a conveyance at all. Students should connect this to the mode of stamping, since many low-value POAs are validly stamped with adhesive stamps.
Distinct Matters in a Single POA: Member, Board of Revenue v. Benthall
The constitutional anchor for the Section 5 / Section 6 distinction in the context of powers of attorney is Member, Board of Revenue v. Arthur Paul Benthall, AIR 1956 SC 35 : (1955) 2 SCR 842. Benthall executed a single power of attorney by which he, in several distinct capacities — as partner of various firms, as director of companies, and in his personal capacity — appointed an attorney. The question was whether this one document related to "several distinct matters" within Section 5, attracting the aggregate of the duties for each capacity, or whether it was a single instrument bearing a single duty.
The Supreme Court, per Venkatarama Aiyar, J., held that the powers conferred in unconnected capacities constituted distinct matters, so that the instrument was chargeable under Section 5 with the aggregate duty. Crucially, the Court explained the deliberate textual gradation of the statute: the legislature used "transaction" in Section 4, "matter" in Section 5, and "description" in Section 6, and these are not interchangeable. "Matter" (Section 5) is wider than "description" (Section 6); an instrument may fall within a single description yet still relate to several distinct matters. This remains the foundational authority on aggregation of duty and is the doctrinal parent of Coastal Gujarat Power. It also marks the boundary of the general liability rules.
Gift — Article 33 and Valuation
An instrument of gift — a transfer made voluntarily and without consideration under Section 122 of the Transfer of Property Act — is charged under Article 33, which provides that an instrument of gift not being a settlement, will or transfer is chargeable with the same duty as a conveyance (Article 23). Because a gift is, by definition, without consideration, there is no "amount or value of the consideration" on which to compute the ad valorem duty; the measure is therefore the value of the property which is the subject of the gift. Under the Schedule I-B regime in most States, that value is the market value of the gifted property, determined in the same way as for a conveyance.
A practical point of high examination value: the expression in Article 33 is the value of the property, while Section 47-A speaks of market value; courts have read the two harmoniously, so that the registering officer who suspects undervaluation of a gift may refer it to the Collector under Section 47-A exactly as for a sale. Many States grant a concessional rate of gift duty where the donee is a near relative (spouse, child, sibling, lineal ascendant or descendant), a State-specific concession that should always be checked against the local Schedule. The conceptual link is that a gift is treated as a conveyance shorn of consideration — the same tariff, a different valuation base.
Aggregation Versus Highest Duty: Reconciling Sections 5 and 6
The five instruments above can collide in a single document, and the choice between Sections 5 and 6 decides the bill. Section 6 applies where one instrument answers two or more descriptions in Schedule I — for example a deed that is simultaneously a conveyance and a mortgage — and charges only the highest of the competing duties. Section 5 applies where one instrument comprises several distinct matters — for example separate, unconnected transfers or separate security transactions bundled into one paper — and charges the aggregate.
The two are not in conflict; they operate on different axes. Section 6 asks: into how many categories of the tariff does this single transaction fall? Section 5 asks: how many distinct transactions/matters does this paper carry? Benthall supplies the test for the latter (distinct capacities = distinct matters), and Coastal Gujarat Power applies it to thirteen lenders. A drafting consequence follows: separating genuinely distinct matters into separate instruments does not save duty (Section 5 aggregates anyway), but consolidating overlapping descriptions of one transaction into one instrument does save duty (Section 6 charges only the highest). This is the practical core of the chargeability rules introduced under liability of instruments to duty.
Undervaluation and the Section 47-A Machinery
For every ad valorem instrument — conveyance, possessory mortgage, gift, and a sale-POA — the measure of duty is vulnerable to deliberate understatement. Section 47-A (a State-inserted provision now found in most stamp statutes) empowers the registering officer, where he has reason to believe that the market value of the property or the consideration has not been truly set forth, to refer the instrument to the Collector for determination of the true market value and the deficient duty, after notice and hearing. The reference is not a mechanical act: "reason to believe" connotes an objective satisfaction based on material, and the officer must have a basis for a prima facie finding of undervaluation.
The market value is to be assessed by reference to the use to which the land is reasonably capable of being put in the immediate or near future, not merely its present use. An important limit: where the sale is by public auction conducted by officers of the court, a Section 47-A reference is generally impermissible, because a transparent court auction is itself the best evidence of market value. The set-forth-value duty under Section 27 and the undervaluation cure under Section 47-A together form the anti-evasion spine of the ad valorem Articles, and dovetail with the determination and adjudication procedure.
Consequences of Insufficient Duty: Hindustan Steel and Section 35
Selecting the wrong Article, or under-paying the right one, has sharp consequences. Section 35 renders an instrument not duly stamped inadmissible in evidence "for any purpose" and forbids any public officer from acting upon, registering or authenticating it. But the defect is curable. In Hindustan Steel Ltd. v. Dilip Construction Co., AIR 1969 SC 1238 : (1969) 1 SCC 597, the Supreme Court held that the object of the Stamp Act is purely fiscal — to secure revenue, not to arm a litigant with a technical weapon — and that once the deficient duty and penalty are paid and the instrument is certified under Section 42, it becomes admissible and may be acted upon. The Act is a fiscal measure "enacted to secure revenue for the State... not to arm a litigant with a weapon of technicality".
This curative principle was tested in the arbitration context. After conflicting decisions in SMS Tea Estates, Garware Wall Ropes and N.N. Global Mercantile, a seven-Judge Bench in In re: Interplay Between Arbitration Agreements under the Arbitration and Conciliation Act, 1996 and the Indian Stamp Act, 1899, (2024) 6 SCC 1, settled that non-stamping or insufficient stamping is a curable defect that does not render the agreement void or void ab initio; it goes only to admissibility under Section 35, not to validity. The lesson for the instruments in this article is that mis-classification is recoverable on payment of duty and penalty, but at the cost of delay, penalty and the impounding machinery of Section 33.
The Principal-Instrument Rule and Multiple Documents
Complex transactions rarely sit in one piece of paper. Section 4 addresses the situation where several instruments are employed for completing a single transaction of sale, mortgage or settlement: only the principal instrument is chargeable with the duty prescribed for that conveyance, mortgage or settlement, and each of the other instruments is chargeable with a duty of one rupee (instead of the duty otherwise applicable). The parties may determine, among the several instruments, which shall be deemed the principal — but, to prevent revenue leakage, that nominated principal must bear the highest duty that any of the instruments would otherwise have attracted.
Section 4 must be distinguished sharply from Section 5. Section 4 deals with multiple instruments, one transaction (charge the principal, nominalise the rest); Section 5 deals with one instrument, multiple matters (aggregate). Confusing the two is a classic examination trap. The contractor's award in Hindustan Steel, the consortium hypothecation in Coastal Gujarat Power, and the multi-capacity POA in Benthall together map the full terrain: when to nominalise (Section 4), when to aggregate (Section 5), and when to charge only the highest (Section 6).
Examination Takeaways and Quick Tariff Map
For rapid recall, fix the instrument-to-Article map: conveyance → Article 23 (ad valorem on consideration / market value, Section 2(10)); lease → Article 35 (graded by term and premium, Section 2(16)); simple mortgage → Article 40(b), possessory mortgage → Article 40(a) at the conveyance rate (Section 2(17)); equitable mortgage / deposit of title deeds → Article 6; power of attorney → Article 48, but as a conveyance where given for consideration to sell (Section 2(21)); gift → Article 33 (same duty as conveyance, computed on the value of the property, Section 122 TPA).
Then layer the structural rules: Section 4 (principal instrument among several for one transaction), Section 5 (aggregate for distinct matters — Benthall, Coastal Gujarat Power), Section 6 (highest of competing descriptions), Section 24 (debt as consideration), Section 27 (set forth the value), Section 47-A (undervaluation cure), and Sections 33 and 35 with Hindustan Steel (impound, pay, admit). Master these and the entire "duty payable on various instruments" question — whatever instrument the examiner picks — resolves to: identify the definition, locate the Article, fix the measure, and apply the overlap and anti-evasion sections. Revisit the foundational material in the definitions and subject hub to consolidate.
Frequently asked questions
Under which Article is a deed of conveyance charged, and on what value?
A conveyance, defined in Section 2(10), is charged under Article 23 of Schedule I. Duty is ad valorem on the amount or value of the consideration for the conveyance; under the Schedule I-B regime followed by most States the measure is the market value of the property. Section 27 requires the consideration to be fully and truly set forth, and undervaluation may be referred to the Collector under Section 47-A.
When is a power of attorney taxed as a conveyance rather than at the Article 48 rate?
An ordinary agency POA attracts the modest fixed duty under Article 48. But where a power of attorney is given for consideration and authorises the attorney to sell immovable property, Article 48 itself charges it as a conveyance on the consideration. In Suraj Lamp & Industries (P) Ltd. v. State of Haryana, (2012) 1 SCC 656, the Supreme Court confirmed that SA/GPA/Will devices do not convey title and that States have made irrevocable sale-POAs chargeable at conveyance rates.
How does a mortgage with possession differ from a simple mortgage for stamp duty?
Under Article 40, a mortgage where possession of the property is given or agreed to be given (a usufructuary or possessory mortgage) is charged at the conveyance rate on the amount secured, because it transfers the substance of ownership. A simple mortgage, where possession is not given, is charged at a substantially lower rate. A mortgage by deposit of title deeds is charged separately under Article 6, often at a concessional rate.
What is the difference between Section 5 and Section 6 of the Indian Stamp Act?
Section 5 charges an instrument relating to several distinct matters with the aggregate of the duties; Section 6 charges an instrument falling within several descriptions with only the highest duty. In Member, Board of Revenue v. Arthur Paul Benthall, AIR 1956 SC 35, the Supreme Court held that the legislature used 'transaction' in Section 4, 'matter' in Section 5 and 'description' in Section 6 deliberately, and that distinct capacities in one POA are distinct matters attracting aggregate duty.
On what value is a gift deed charged, and can it be referred for undervaluation?
A gift is charged under Article 33 with the same duty as a conveyance, but since a gift has no consideration the measure is the value of the property gifted (market value under Schedule I-B). Article 33 speaks of 'value of the property' while Section 47-A uses 'market value'; courts read them harmoniously, so a registering officer who suspects undervaluation of a gift may refer it to the Collector under Section 47-A just as for a sale. Many States give a concessional rate for gifts to near relatives.
What happens if an instrument is not duly stamped — is it void?
No. Under Section 35 an instrument not duly stamped is inadmissible in evidence and cannot be acted upon, but the defect is curable. In Hindustan Steel Ltd. v. Dilip Construction Co., AIR 1969 SC 1238, the Court held the Act is a fiscal measure, not a weapon of technicality, so on payment of duty and penalty and certification under Section 42 the instrument becomes admissible. A seven-Judge Bench in the 2023 Interplay reference, (2024) 6 SCC 1, confirmed that insufficient stamping does not render an agreement void.