⌖ Knowledge Bank / Calculators

The toolkit.

15 calculators we use in our own engagements every day — GST, income tax, TDS, HRA, EMI, NSC, RERA and a few more. All formulas current to FY 2025-26 and cross-referenced with statutory rates.

⌖ §1 / GST

Goods & Services Tax.

03 calculators

01GST

GST Calculator

Add or extract GST from any amount.

02GST

GST MRP Calculator

Work out the MRP given a base price and GST rate — or the other way round.

03GST

GST Rate Finder

Quick reference for the 0 / 5 / 12 / 18 / 28 percent rate buckets.

⌖ §2 / Income Tax & TDS

Income tax & withholdings.

03 calculators

01Tax

Income Tax Calculator

FY 2025-26 — Old and New regime, side by side.

02Tax

TDS Calculator

Apply the right section rate to a payment.

03Tax

HRA Exemption Calculator

Section 10(13A) — three-way minimum.

⌖ §3 / Loans & Installments

Loans & instalments.

04 calculators

01Loans

EMI Calculator

Equated monthly instalment for any loan.

02Loans

Home Loan Calculator

Long-tenure loan EMI with prepayment view.

03Loans

Auto Loan Calculator

Vehicle financing EMI and total cost of ownership.

04Loans

Installments Solver

Given the EMI you can afford, how many months will it take?

⌖ §4 / Finance & Investments

Personal & business finance.

03 calculators

01Finance

Net Profit Calculator

Revenue minus expenses with margin ratios.

02Finance

Net Worth Calculator

Assets minus liabilities — your snapshot.

03Finance

NSC Calculator

National Savings Certificate maturity at the current rate.

⌖ §5 / Compliance & Statutory

Statutory & compliance.

02 calculators

01Compliance

Effective Capital

Schedule V cap on managerial remuneration.

02Compliance

RERA Interest Calculator

Interest on delayed possession at MCLR + 2%.

⌖ On accuracy

These tools implement the statutory formulas as currently notified. Tax slabs, surcharge thresholds and TDS rates change each Union Budget — the calculator labels make the relevant FY explicit. Where a state-level variation exists (PT, RERA interest), the calculator either lets you set the rate or flags the default in copy.

Engagement clients receive personalised workings filed under their entity — these public calculators are the generic version, useful for first-cut estimates and educational use.