Tax Knowledge Base

Free Tax Filing Guides

Practical guides on ITR filing, GST compliance, and tax planning. Updated for FY 2026-27 and Budget 2026.

Updated for FY 2026-27

All ITR GST PAN TAN Calculators Tax Planning

Tally Bookkeeping for GST 2026 — How to Maintain Books, GSTR-1 Export, Reconciliation

Complete guide to Tally bookkeeping for GST compliance in 2026. How to set up GST in Tally Prime, record purchase and sales vouchers, export GSTR-1, and reconcile GSTR-2B.

1 June 2026·8 min readRead →

ITR

TAN Registration and TDS Filing Guide 2026 — Form 49B, Quarterly Returns, Form 16

Complete guide to TAN registration and TDS filing for FY 2026-27. How to apply for TAN (Form 49B), quarterly TDS returns (24Q, 26Q), Form 16/16A generation, and penalties.

1 June 2026·8 min read

ITR

TDS Rates and Sections 2026 — Complete Chart for FY 2026-27

Complete TDS rate chart for FY 2026-27. Section 192 (salary), 194C (contractor), 194J (professional), 194A (interest), 194H (commission). Updated for Income Tax Act 2025.

1 June 2026·8 min read

Calculators

Advance Tax Calculator 2026 — Due Dates & 234B/234C Interest

Who must pay advance tax in 2026, the four instalment due dates and percentages, and how Sections 234B and 234C interest is calculated if you underpay.

30 May 2026·5 min read

Calculators

SIP Calculator 2026 — How Compounding & Tax on Returns Work

How a SIP calculator projects mutual fund wealth using monthly compounding, what the maturity formula means, and how your SIP gains are taxed in 2026.

28 May 2026·5 min read

ITR

ITR Filing Last Date 2026 — FY 2025-26 Deadlines You Must Know

Complete guide to ITR filing deadlines for FY 2025-26 (AY 2026-27). July 31 for salaried, August 31 for business income. Late fee, penalties, and revised return rules.

20 May 2026·6 min read

Tax Planning

Section 80C Deductions — Complete List for FY 2025-26 (₹1.5 Lakh Limit)

Complete list of Section 80C investments and payments eligible for ₹1.5 lakh deduction in FY 2025-26. LIC, PPF, ELSS, EPF, NSC, home loan principal, tuition fees — all covered.

19 May 2026·7 min read

ITR

New vs Old Tax Regime 2026 — Which One Saves You More Tax?

Complete comparison of new vs old tax regime for FY 2025-26. Tax slabs, deductions, rebate 87A, and which regime is better for salaried employees, freelancers, and investors.

18 May 2026·8 min read

ITR

HRA Exemption Calculation with Example — FY 2025-26

Step-by-step HRA exemption calculation with examples for metro and non-metro cities. New 8-city metro list from FY 2026-27. Formula, conditions, and common mistakes.

17 May 2026·6 min read

ITR

What is AIS (Annual Information Statement)? How to Use It for ITR Filing 2026

AIS (Annual Information Statement) is the IT Department's comprehensive view of your financial transactions. Learn how to download it, what it contains, and how to use it for ITR filing 2026.

16 May 2026·6 min read

ITR

ITR-1 vs ITR-2 — Which Form Should You File for FY 2025-26?

Confused between ITR-1 and ITR-2? This guide explains who should file which form for FY 2025-26 (AY 2026-27), with examples for salaried employees, investors, and NRIs.

15 May 2026·7 min read

Tax Planning

Advance Tax Due Dates FY 2025-26 — Who Pays, How Much, and When

Complete guide to advance tax for FY 2025-26. Due dates (June 15, Sep 15, Dec 15, Mar 15), who must pay, how to calculate, and interest under Section 234B and 234C.

14 May 2026·6 min read

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