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Updated: March 2026

Knowledge Hub

Everything you need to understand, plan and file your taxes — free guides, instant calculators, and a complete compliance calendar. Written and verified by Chartered Accountants.

CA-Written Tax Guides
4 Free Tax Calculators
Full Compliance Calendar
Budget 2026 Updated

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Featured Tax Guides

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📊

Union Budget 2026-27 — Complete Tax Analysis

No slab changes. New IT Act 2025 from 1 Apr 2026. Revised ITR deadline. TCS cuts. NRI relief. FAST-DS.

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📚

Complete Income Tax Guide FY 2025-26

Tax slabs, deductions, ITR forms, due dates, penalties, TDS and everything else explained simply.

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🌎

NRI ITR Filing Guide FY 2025-26

DTAA, NRO/NRE, RNOR status, Schedule FA, property TDS refund — complete NRI tax guide.

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💰

Section 80C — All Eligible Investments

PPF, ELSS, LIC, EPF, NSC — returns, lock-in periods, risk comparison and free calculator.

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🏠

HRA Exemption — Section 10(13A) Guide

3-condition rule, metro vs non-metro, rent to parents, partial year — with live calculator.

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🧾

GST Filing Guide — GSTR-1, 3B, 9

Return types, due dates, ITC reconciliation, penalties, e-invoice and composition scheme.

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Upcoming Deadlines

Key Due Dates — FY 2025-26 (AY 2026-27)

Full Calendar

ITR Filing Deadlines

Salaried / Individual (ITR-1, ITR-2)31 Jul 2026
Non-Audit Business (ITR-3, ITR-4)31 Aug 2026
Tax Audit Cases (Sec 44AB)31 Oct 2026
Transfer Pricing (Sec 92E)30 Nov 2026
Belated Return (late fee applies)31 Dec 2026
Revised Return — with fee (NEW)31 Mar 2027

Advance Tax & GST Deadlines

Advance Tax — Instalment 4 (100%)15 Mar 2026
GSTR-3B (Feb 2026) — Monthly filers20 Mar 2026
GSTR-1 (Mar 2026) — Monthly filers11 Apr 2026
Advance Tax — Instalment 1 FY27 (15%)15 Jun 2026
Advance Tax — Instalment 2 (45%)15 Sep 2026
GSTR-9 Annual Return FY 2025-2631 Dec 2026

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indiantaxplanning.in  ·  CA-verified  ·  Updated March 2026

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