Tools worth bookmarking.

Rate charts, calculators, planning tools and checklists built by the firm — the same references we use internally, made public. Every page states the period on which its position is given.

Rate charts & reference tables

Every payment code in one searchable table.

From 1 April 2026 the Income-tax Act, 2025 identifies the nature of a payment by a four-digit payment code rather than the legacy 194-series section number. The chart carries both, so any figure can be traced back to the 1961 Act.

Tax calculators

Old regime or new, on your own figures.

Income Tax Calculator — FY 2025-26

Compares the old and new regimes for a resident individual below 60, for the year ended 31 March 2026 — the year now being filed, which remains governed by the Income-tax Act, 1961. Income earned from 1 April 2026 falls in Tax Year 2026-27 under the Income-tax Act, 2025; a calculator for that year will follow once the firm confirms the slabs. Educational estimate: surcharge and special-rate incomes are not modelled.

Position stated as at: FY 2025-26 (AY 2026-27) — governed by the Income-tax Act, 1961. Basis: income earned up to 31 March 2026 remains under the 1961 Act; income from 1 April 2026 falls under the Income-tax Act, 2025. This tool is provided as general reference information and is not professional advice. Rates, thresholds and procedures change; verify the position against the bare Act, the Rules and current official notifications, or ask the firm, before acting on any figure shown.

How to read the result

The two regimes are not better or worse than one another. They are different arithmetic structures, and which produces the lower liability depends almost entirely on how much you can actually deduct and substantiate.

What this tool does not model

  • Surcharge at higher income levels, and the 25% cap in the new regime
  • Income taxed at special rates, including capital gains under sections 111A and 112A
  • Marginal relief where total income sits just above the rebate threshold
  • Residents aged 60 and above, and other status-specific reliefs

For the reasoning behind the comparison, including the procedural trap in Form 10-IEA for taxpayers with business income, read the full article.

Old vs New Tax Regime →

Checklists & downloads

The document lists we work from.

Each is the internal list the firm uses on that engagement type. Write to us and we will send the current version.

ITR filing document checklist

Request via email →

New company post-incorporation checklist

Request via email →

GST annual return workings checklist

Request via email →

NRI property sale — step sequence

Request via email →

Tax audit data request list

Request via email →

Startup diligence-readiness checklist

Request via email →

MSME payment (43B(h)) process note

Request via email →

Monthly compliance calendar template

Request via email →

Reading

The explanations behind these tools sit in Insights.

Eleven articles on the old and new regimes, GST credit reconciliation, MSME payment timelines, the MCA filings companies forget, Form 3CD, diligence readiness, exchange-control reporting and cross-border taxation — each written for the questions clients actually bring us.

Read the articles → Old vs New Regime → GSTR-2B vs Books →

Content on this page is for general information only and does not constitute professional advice. Positions in tax law change with amendments and judicial decisions — please consult the firm before acting on any information here.

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