Tax & Regulatory
under Indian law.
Indian tax practice is mid-transition: the Income-tax Act, 1961 governs income up to 31 March 2026 and the Income-tax Act, 2025 takes over from 1 April 2026, collapsing 819 sections into 536 and folding most TDS obligations into table serials inside s.393. GST runs in parallel under the CGST Act, 2017. This hub carries the section mapper, the TDS finder, the slab tables, the CII series and the interest calculator, each citing its own source.
Last reviewed: 19 August 2026 · every citation on this page names the dataset it came from
- 11governing provisions
- 14product capabilities
- 9free tools
- 28compliance deadlines
- 5audiences
The single most consequential fact in Indian tax right now is the changeover. Income earned up to 31 March 2026 stays on the Income-tax Act, 1961; income from 1 April 2026 is Tax Year 2026-27 and runs on the Income-tax Act, 2025. Most TDS provisions no longer have standalone section numbers — s.194J professional fees becomes a serial in the s.393(1) table, s.194C contractor payments another, s.195 non-resident payments a serial in s.393(2). Citing the legacy number after the changeover is a drafting defect, not a shorthand.
The thresholds moved too. The Finance Act 2025 raised the s.194J professional-fees threshold to ₹50,000 a year, s.194I rent to ₹6 lakh a year (₹50,000 a month), and s.194H commission and brokerage to ₹20,000 a year, all with effect from 1 April 2025. Section 194C's ₹30,000 single / ₹1 lakh aggregate thresholds were left unchanged. Section 194Q still applies to buyers with turnover above ₹10 crore purchasing goods above ₹50 lakh a year per seller.
GST is the other half. Section 7 of the CGST Act, 2017 defines supply; s.9(3) and (4) carry reverse charge; s.16 sets the four conditions for input tax credit — possession of a tax invoice, receipt of goods or services, tax actually paid by the supplier, and the return furnished; and s.17(5) lists the blocked credits that catch people out. Section 31 requires the tax invoice whose fields Rule 46 prescribes. Capital gains carry their own trap: indexation was withdrawn for most transfers on or after 23 July 2024, which the Cost Inflation Index tool states on its face.
The provisions, with their section numbers.
Each row names the dataset it was taken from — the seeded statute library, the compliance calendar's own statutory reference, the bare Limitation Act, or the DPDP research set. Nothing here was written from memory.
Tools that apply to this work.
Each runs in your browser. Nothing is uploaded anywhere, and none of them needs an account.
Where each Income-tax Act, 1961 section lands in the Income-tax Act, 2025 from 1 April 2026.
Section-wise TDS rates for FY 2025-26 — salary, rent, professional fees, contractors and 20+ more.
Forward and reverse GST, with the CGST/SGST split for intra-state supply and IGST for inter-state.
Find the GST code and rate for any product or service.
Validate a GSTIN's checksum and decode state code, PAN and entity type — runs in your browser.
New and old regime side by side for FY 2024-25 to FY 2026-27, with rebate, surcharge and cess.
Every notified CII with an indexed-cost calculator — and the 23 July 2024 withdrawal caveat.
Interest under 234A/234B/234C, CGST s.50, TDS 201(1A) and the 234E fee, each with its citation.
Every recurring statutory due date, month by month, each carrying its own citation.
The capabilities that do this work.
Every one of these is a real feature page with its own status — Live, Beta or Soon. If it says Beta, it is in beta.
Section-wise IT Act analysis with CBDT circulars, flagging missed deductions.
Auto-flags TDS obligations from contract clauses — section, rate, threshold, due date.
GST math, ITC reconciliation against GSTR-2B, and e-invoicing validation.
Side-by-side treatment of a clause or transaction under both frameworks.
DTAA treaty analysis, transfer pricing flags, Form 15CA/CB requirements.
Every deadline that applies to your entity in one calendar, with advance alerts.
SEBI, RBI, MCA/ROC, and GST circulars + filings tracked end-to-end.
New circulars summarised and filterable by Act, regulator, and effective date.
Tax invoices with CGST/SGST/IGST split, GSTIN capture, 8-year retention.
Vendor-onboarding review, weekly compliance scan, GST reconciliation — ready to enable.
Add / remove GST, with intra-state CGST+SGST or inter-state IGST split.
Section-wise TDS rates for FY 2025-26 across 30+ payment types.
Search GST codes for goods and services, with rate.
Validate any GSTIN's checksum + decode state and entity type.
The modules this area draws on.
The people who do tax & regulatory work.
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28 compliance deadlines touch this area.
These are the statutory dates, not the extended ones — there is no automatic carry-forward when a due date falls on a Sunday or a gazetted holiday, and regulators grant relief only by ad-hoc notification. Every row states who it applies to; almost none of them applies to every entity.
- TDS / TCS payment
- TDS / TCS — Q1 statement
- TDS / TCS — Q2 statement
- TDS / TCS — Q3 statement
- TDS / TCS — Q4 statement
- Advance Tax — Q1 (15%)
- Advance Tax — Q2 (45%)
- Advance Tax — Q3 (75%)
- Advance Tax — Q4 (100%)
- ITR filing — Individuals / HUFs (no audit)
- Tax audit report (ex-3CA/3CB + 3CD)
- ITR filing — Companies / audit cases
- Transfer pricing accountant's report (ex-3CEB)
- ITR filing — TP cases
- Belated / revised return
- GSTR-1 — Outward supplies
- GSTR-3B — Summary return
- CMP-08 — Composition quarterly statement
- GSTR-4 — Composition annual return
- GSTR-9 — Annual return
- GSTR-9C — Reconciliation statement
- GSTR-7 — TDS return (deductor)
- GSTR-8 — TCS return (e-commerce)
- ITC-04 — Job-work declaration (Apr-Sep)
- ITC-04 — Job-work declaration (Oct-Mar)
- FLA — Foreign Liabilities & Assets return
- APR — Annual Performance Report (ODI)
- ECB-2 — Monthly ECB return
Tax & Regulatory — the questions people actually ask.
Which Income-tax Act applies to my transaction?
Income earned up to 31 March 2026 stays on the Income-tax Act, 1961. Income earned from 1 April 2026 is Tax Year 2026-27 and runs on the Income-tax Act, 2025. The section mapper carries 80 mappings across TDS, deductions, capital gains, business, compliance and international heads, each with a confidence badge — confirmed rows were checked against the bare text of the 2025 Act, and unverified rows are marked as gaps rather than guessed.
Why can I not find s.194J in the Income-tax Act, 2025?
Because most TDS obligations stopped being standalone sections. They are now table serials inside s.393 — professional and technical fees at s.393(1) Table Sl. No. 6(iii), contractor payments at Sl. No. 6(i), rent at Sl. No. 2(ii), commission and brokerage at Sl. No. 1(ii), purchase of goods at Sl. No. 8(ii), and non-resident payments at s.393(2) Table Sl. No. 17. After the changeover, cite the serial.
Does LexVio compute my tax or file my returns?
It does not file. The free tools compute — GST forward and reverse with the CGST/SGST or IGST split, TDS rates by section, slab tax under either regime, indexed cost from the notified CII series, and interest and late fees under 234A/234B/234C, CGST s.50, TDS 201(1A) and the ₹200-a-day 234E fee, each shown step by step with its citation. Inside the product, tax analysis reads your contracts section-wise against the Act with CBDT circulars and flags TDS obligations arising from clauses.
Is indexation still available on capital gains?
Not for most transfers on or after 23 July 2024 — indexation was withdrawn, and the Cost Inflation Index tool says so on its face rather than quietly computing a number you cannot use. The notified CII series is still published and still relevant to transfers before that date, from base 100 for FY 2001-02 through 384 for FY 2026-27.
A map of the material, not advice on your matter. These hubs point at statutory text, free calculators and product capabilities. They are not legal advice, they do not create an advocate-client relationship, and they are no substitute for reading the bare Act as currently amended. Indian law is fact- and state-specific — stamp duty, registration and several employment obligations vary by state, and limitation turns on facts a web page cannot know. Take advice on your own facts before acting.
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