Section 54 and Section 54F both offer exemption on long-term capital gains by reinvesting in a residential house in India, but they differ on the type of asset sold and on what amount has to be reinvested. Section 54 — applies only when the asset sold is a residential house; only the LTCG (not the entire sale consideration) needs to be reinvested in a new residential house; available exclusively to individuals and HUFs; reinvestment window is 1 year before or 2 years after sale (3 years for construction); from AY 2024-25 the exemption is capped at ₹10 crores; a once-in-lifetime option is available to invest in two residential houses where total LTCG does not exceed ₹2 crores. Section 54F — applies when the asset sold is any long-term capital asset other than a residential house (such as land plot, listed or unlisted shares, gold, jewellery, equity / debt mutual funds, bonds, business assets); the entire net consideration (sale value minus transfer expenses), not just the gain, must be reinvested in one residential house in India for full exemption; available only to individuals and HUFs; same 1 / 2 / 3-year window; ₹10 crore cap also applies; assessee must not own more than one residential house (other than the new one) on the date of transfer; assessee cannot purchase another house within 2 years or construct another house within 3 years of the original transfer (else exemption is withdrawn). Where partial reinvestment is made under Sec 54F, the exemption is proportionate — Exemption = LTCG × (Amount Invested / Net Consideration). Strategic implication — Sec 54 is more flexible for house-to-house transactions; Sec 54F requires careful cash management because the net consideration (often much larger than the LTCG) must be deployed; for high-LTCG cases, Sec 54F can be combined with Sec 54EC capital gain bonds (₹50 lakh) for incremental savings.

Section 54EC offers exemption on long-term capital gains arising from the sale of land or building (or both — collectively immovable property) if the gain is invested in specified bonds within 6 months from the date of transfer. Specified bonds — National Highways Authority of India (NHAI), Rural Electrification Corporation (REC, now PFC subsidiary), Power Finance Corporation (PFC), and Indian Railway Finance Corporation (IRFC) capital gain bonds; these are issued in tranches throughout the year. Key features: (a) Maximum investment cap — ₹50 lakhs per financial year per assessee, including any investment made in the immediately succeeding financial year for the same gain (combined cap); effectively, the maximum exemption attainable is ₹50 lakhs even if the gain exceeds; (b) Lock-in period — 5 years (extended from 3 years w.e.f. 1 April 2018); bonds cannot be sold, pledged, or transferred during lock-in, and any premature transfer / loan against the bond reverses the exemption; (c) Interest is taxable annually at slab rates and is not exempt under Sec 10; (d) Available only on LTCG from sale of land / building, not on other assets such as shares, mutual funds, gold, or unlisted securities; (e) Available to all assessees — individuals, HUFs, companies, firms, LLPs, NRIs. Strategic considerations — combine Sec 54EC with Sec 54 / 54F to maximise relief: split the gain between a new house (under Sec 54 / 54F) and ₹50 lakhs in 54EC bonds. The 6-month window is strictly interpreted; missing it forfeits the exemption permanently. For sales near financial year-end, allocation across two FYs (₹50 lakh in March, another tranche in April) is restricted by the combined cap; effectively, ₹50 lakh is the lifetime cap per gain. Bonds can be purchased online directly with the issuing institutions, through demat or physical certificate, generally yielding 5–5.5% per annum.

The Capital Gains Account Scheme (CGAS), 1988 is a notified scheme that allows taxpayers to park unutilised capital gain proceeds in a special bank account to retain Sec 54 / 54B / 54D / 54F / 54G / 54GA / 54GB exemption when reinvestment is not completed before the ITR filing due date. Purpose — bridges the timing gap between the sale (which crystallises the gain and triggers tax) and reinvestment (which extends over 2 to 3 years for purchase / construction). Two account types: (a) Type A — Savings Account, suitable when the assessee plans to make multiple staggered withdrawals (e.g., periodic payments to builder against demand letters, registration costs, brokerage); interest at savings rate; (b) Type B — Term Deposit, fixed for 1–3 years, higher interest, suitable when reinvestment is a single lump-sum payment. Eligible banks — only specified public sector banks (State Bank of India, Punjab National Bank, Bank of Baroda, Canara Bank, Union Bank of India, Indian Bank, Bank of India, Central Bank, etc.); private banks are generally not authorised. Mechanism: (a) Deposit unutilised capital gain in CGAS on or before the due date of filing ITR (31 July or 31 October as applicable to the assessee); (b) Claim full exemption in ITR by reflecting CGAS deposit as deemed reinvestment; (c) Withdraw funds when actual reinvestment occurs (against builder receipt, registration challans, etc.); withdrawal requires Form C (initial withdrawal) and Form D (subsequent withdrawals) for Type A, and full conversion to Type A for Type B; (d) Utilise within prescribed time — 2 years for purchase, 3 years for construction (Sec 54 / 54F), 2 years (Sec 54B), 3 years (Sec 54D / 54G / 54GA); (e) If unutilised at the end of the time window, the unutilised balance is taxable as LTCG / STCG of the year in which the time limit expires; account can then be closed with bank manager's approval (after producing assessing officer's NOC for closure). Key compliance discipline — maintain photocopies of every withdrawal and matching utilisation evidence (registration receipt, builder demand letter, contractor invoice) for assessment defence years later. Common pitfall — assessees forget to deposit before the ITR due date and lose the exemption permanently; even a 1-day delay is fatal under settled law.

Both questions involve specific qualifying conditions that materially shape eligibility. Foreign property — post Finance Act 2014, the new residential house under Section 54 (and Section 54F) must be located "in India"; property purchased outside India does not qualify, regardless of value or proceeds source. This restriction was introduced to plug an earlier interpretive gap — pre-2014, several ITAT decisions had allowed exemption on foreign property; the legislature foreclosed this by inserting "in India" through the 2014 amendment, applicable to transfers from AY 2015-16 onwards. The restriction is particularly relevant for NRIs — an NRI selling Indian property and wishing to buy a house in their country of residence cannot claim Sec 54 / 54F exemption on that purchase; they must invest in Indian residential property to claim. NRIs are otherwise eligible for the same conditions and limits as residents. Under-construction property — Section 54 specifically allows construction of a new house within 3 years from the date of sale, not just outright purchase. This includes purchase of an under-construction flat from a builder where possession is delivered within 3 years. Several judicial decisions (Mrs. Hilla J.B. Wadia v. CIT (Bombay HC), CIT v. R.L. Sood (Delhi HC), CIT v. Sambandam Udaykumar (Karnataka HC)) have liberally interpreted "construction" to include allocation of an apartment in a builder project, even where construction is not 100% complete, provided substantial payment is made within 3 years. CBDT Circular No. 471 (1986) and Circular No. 672 (1993) reinforce this liberal interpretation by treating allotment in DDA / cooperative housing schemes and similar project-based purchases as "construction" for Sec 54 / 54F. Risks with under-construction — possession delays beyond 3 years can defeat the exemption; mitigation strategy is to deposit the gain in CGAS by ITR due date and document continuous payment to builder; in case of inordinate builder delay, judicial precedents support assessee's bona fide intention as a defence, but uncertainty exists. For RERA-registered projects, possession date in RERA registration is strong supporting evidence. Tip: where possession is uncertain, prefer ready-to-move-in property within 2 years (purchase route) rather than 3-year construction route.

Yes — multiple exemption sections can be combined on a single LTCG transaction (subject to the underlying conditions of each), and this stacking strategy is one of the most powerful tools to legally minimise capital gain tax. Common combinations: (1) Sec 54 + Sec 54EC — for a residential house sale: invest LTCG up to ₹10 crores in another residential house under Sec 54, plus invest up to ₹50 lakhs in NHAI / REC / PFC / IRFC bonds under Sec 54EC; both exemptions can be claimed for the same LTCG, capped at the aggregate of new house cost and bond investment; (2) Sec 54F + Sec 54EC — for sale of long-term plot, shares, or other non-house asset: invest net consideration in a new residential house under Sec 54F, plus invest up to ₹50 lakhs in 54EC bonds for the same gain; both can be claimed; (3) Sec 54 + multiple house investments — under Sec 54 once-in-lifetime option, invest in two houses where LTCG ≤ ₹2 crores; (4) Across financial years — Sec 54EC investment can technically span two FYs if sale is near year-end (sale in February → ₹50 lakh in same FY by 31 March → another tranche in April), but the combined cap is still ₹50 lakhs per gain (clarified by Finance Act 2014). What cannot be done: (a) Exemption on the same component of gain twice — e.g., the same ₹50 lakhs cannot be claimed under both Sec 54 and Sec 54EC; the gain is allocated across exemptions; (b) Sec 54 cannot be claimed on a sale of plot (use Sec 54F); Sec 54F cannot be claimed on house sale (use Sec 54); (c) Sec 54B (agricultural land) and Sec 54D (industrial acquisition) are asset-specific and cannot be combined with Sec 54 / 54F on the same transaction. Optimal stacking decision matrix: (a) If LTCG ≤ ₹50 lakhs, evaluate whether Sec 54EC alone covers it (saves illiquid house buying); (b) If LTCG between ₹50 lakhs and house cost desired, use Sec 54 + Sec 54EC combined; (c) If LTCG significantly higher than ₹10 crores, plan house construction ≤ ₹10 crores + ₹50 lakhs bonds + accept residual taxable LTCG at 12.5% / 20% on the balance; (d) Time the sale so that bond purchase fits within 6 months and CGAS deposit before ITR due date. Schedule CG in ITR-2 / ITR-3 has separate rows for each exemption — claim accurately with section-wise computation and supporting evidence.

Each capital gain exemption section under Sections 54 to 54GB carries a lock-in period on the new asset acquired through reinvestment, and breaching the lock-in reverses the exemption claimed. Lock-in details by section: (a) Sec 54 — new residential house cannot be transferred within 3 years from the date of acquisition or completion of construction; (b) Sec 54F — new house lock-in 3 years; additionally, assessee cannot purchase another house within 2 years or construct another within 3 years of original transfer (separate condition); (c) Sec 54EC — bonds locked in for 5 years (extended from 3 years w.e.f. 1 April 2018); cannot be sold, pledged, or transferred or used as security for loans; (d) Sec 54B — new agricultural land lock-in 3 years; (e) Sec 54D — new industrial premises lock-in 3 years; (f) Sec 54G / 54GA — new industrial assets lock-in 3 years; (g) Sec 54GB — new equity in eligible startup lock-in 5 years (3 years for computers / software). Consequence of breach — under each section, if the new asset is transferred / sold within the lock-in period, the exemption claimed earlier is reversed: the cost of the new asset is reduced by the exempted amount, increasing the capital gain on the subsequent transfer of the new asset; effectively, the original exempted gain is added back to the capital gain on the new asset's sale (taxable in the year of subsequent sale as either short-term or long-term gain depending on holding period of the new asset). For Sec 54EC bonds — if the bond is converted into money / loan is taken against it within 5 years, the exempted LTCG amount is taxable as LTCG in the year of conversion / loan; tax rate at 12.5% / 20% as applicable. For Sec 54GB — if startup equity is sold within 5 years (3 years for software), the exempted LTCG is taxed in the year of sale of equity. Strategic implications: (a) Plan succession / family transfers (gift to spouse / child) carefully — gift may not be a "transfer" under Sec 47, preserving exemption; (b) Compulsory acquisition during lock-in can be argued as not voluntary transfer; (c) Sale of inherited new asset post lock-in is fine; (d) Track lock-in dates meticulously — many exemptions are lost due to inadvertent early sale by family members not aware of the lock-in. Documentation — preserve original purchase deed of new asset, lock-in date workings, and any subsequent transfer particulars for assessment defence.

Yes — NRIs are eligible for capital gain exemptions on reinvestment under Sections 54, 54EC, and 54F on the same conditions as resident individuals, with one important qualification: the new residential house must be located in India (post Finance Act 2014). Section-wise NRI eligibility: (a) Sec 54 — available; NRI selling Indian residential house and reinvesting in another Indian residential house qualifies; ₹10 crore cap and 1 / 2 / 3-year window apply; (b) Sec 54EC — available; NRI can invest up to ₹50 lakhs in NHAI / REC / PFC / IRFC bonds within 6 months of sale; bonds can be held in NRO demat account; (c) Sec 54F — available; NRI selling shares, mutual funds, gold, plot, or other long-term assets and reinvesting net consideration in Indian residential house qualifies; (d) Sec 54B — available only if NRI was carrying out agricultural activity on the urban agricultural land for 2 years; rare in practice; (e) Sec 54GB — typically not available because the seller must be an individual / HUF investing in eligible Indian MSME / startup; in principle, NRI individual can qualify if conditions met. Critical NRI-specific implications: (1) New house must be in India — NRI cannot purchase home in country of residence and claim Sec 54 / 54F; (2) Buyer's TDS under Sec 195 — buyer of property from NRI must deduct TDS at 12.5% (LTCG) or 30% (STCG) plus surcharge and cess from the first rupee of consideration (no ₹50 lakh threshold); strongly recommended that NRI obtain Sec 197 lower deduction certificate (Form 13) before the sale to reduce TDS to actual capital gain tax post-exemption; otherwise, large refunds get blocked for years; (3) FEMA repatriation — sale proceeds (after tax) credited to NRO; can be repatriated up to USD 1 million per financial year through NRO with Form 15CA / 15CB; if NRI buys new Indian property under Sec 54 / 54F, the proceeds are typically routed through NRE / NRO, and source of funds documentation is critical for FEMA compliance; (4) DTAA — NRI's residence country may also tax the capital gain (e.g., USA taxes worldwide income of US persons); credit for Indian capital gain tax can be claimed under DTAA with TRC + Form 10F; (5) ITR filing — NRI must file ITR-2 in India to claim exemption, refund excess TDS, and meet reporting requirements; PAN is mandatory; (6) CGAS for NRIs — NRO account holders can open CGAS with notified PSU banks; deposits and withdrawals must comply with FEMA repatriation framework. Common pitfalls — buyer deducting TDS at 1% (resident rate under Sec 194-IA) instead of 12.5% / 30% (NRI rate under Sec 195); NRI not filing ITR assuming exemption is automatic; missing 6-month / 2-year / 3-year deadlines because of cross-border travel / banking delays. NRI capital gain exemption planning is therefore as much a FEMA / compliance exercise as a tax structuring one.