Finance that makes sense.
Money decisions, with the working shown.
Calculators, guides and an evening brief for Indian earners, investors and borrowers. Every result shows its formula, values and steps.
Daily Brief
The Daily Brief publishes most evenings between 7 and 11 pm IST. How we check
Read the briefStart with your situation
- All calculators
- Tax calculators
- Money calculators
- Business Income Tax Calculator
- Presumptive Tax Calculator
- Advance Tax Calculator
- Do I Need to Pay Advance Tax?
- Missed Advance Tax Instalment
- Advance Tax Deferment Interest Calculator
- Property Capital Gains Preview
- Trader Tax Calculator
- Cash vs Loan Calculator
- Intelligence: what changed, with the source
- Daily Brief
- Exam Updates
- Traders Brief
- Tax Brief
- Daily Brief archive
- Guides
- Calculation methodology
- Statutory sources
- Editorial standards
- How the brief is made
- Changelog
- About HeyArtha
Aptivya by HeyArtha
Chapter-wise and full-paper case scenario MCQ practice for CA Intermediate candidates. Every test mirrors the ICAI examination pattern: realistic factual narratives, zero negative marking, complete statutory working, and downloadable signed performance certificates.
Corporate and Other Laws
Complete chapter-by-chapter test series covering all 15 syllabus units: Companies Act 2013, LLP Act 2008, General Clauses Act 1897, Interpretation of Statutes, and FEMA 1999.
Taxation (Income-tax & GST)
Complete chapter-by-chapter and full-paper practice for the May 2027 examination attempt. Features Direct Tax (Income-tax Act, 2025) and Indirect Tax (CGST & IGST Acts).
Daily Brief
Today's brief
Statutory dates
Upcoming statutory dates
-
15 Dec
Advance tax, 3rd instalment: 75% of the year
Anyone whose estimated tax for the year, after TDS, is ₹10,000 or more.
Read the guide -
15 Mar
Advance tax, 4th instalment: the full amount for the year
Anyone whose estimated tax for the year, after TDS, is ₹10,000 or more. Presumptive income pays by this date.
Read the guide -
15 Jun
Advance tax, 1st instalment: 15% of the year
Anyone whose estimated tax for the year, after TDS, is ₹10,000 or more.
Read the guide
Dates can change if notified. Extensions are covered in the Daily Brief.
Tools
Pick a category, or browse them all. Each tool shows its formula, values and steps.
Tools by job
Tax
Take-home pay, year-end planning and advance tax.
Loans
Whether to pay cash or take a loan.
Investing
Tax on trading, derivatives and property sales.
- Trader Tax Calculator
- Property Capital Gains Preview
- F&O Turnover & Tax Audit Validator (Preview)
- Pitch Decoder
Business and books
Business profit, presumptive tax and bank statements.
How the working is shown
Every result sheet carries these six parts.
- Inputs you gave
- Formula used
- Values substituted
- Result
- Assumptions and the rule it comes from
- Link to this tool's test record
Test records
How each tool is checked
- Write the rules
- Build an independent calculation
- Run both on the same cases
- Publish every difference
Guides
Plain-language reading on tax, trading and the CA path, written to sit next to the calculators.
CA Talks
Sole Proprietorship vs Pvt Ltd vs LLP: 2026 Guide
Which structure actually fits your startup: liability, funding, ESOPs, and compliance cost compared honestly, not as a sales pitch.
~10 min read
Traders
Risk Management Basics Every New Indian Trader Skips
Position sizing, the 1% rule, and portfolio heat explained with real Indian rupee math, not vague warnings.
~11 min read
Traders
How to Read Your Trading P&L Statement (India Guide)
Contract note, tax P&L, turnover: what each report actually shows and why your bank credit never matches the number on screen.
~9 min read
Traders
Demat Account Basics for First-Time Traders (2026)
What a demat account actually is, the real charges, and the new September 2026 nomination rule every new account holder should know.
~9 min read
Traders
Brokerage & Tax on Trading Income in India (2026 Guide)
What Zerodha actually charges, how STT changed in 2026, and how F&O, intraday and delivery profits are taxed, in a real numbers breakdown.
~10 min read
CA Talks
CA vs ACCA: The Real Cost, Duration and Rights Compared (2026)
Not the coaching pitch. A neutral, data-first CA vs ACCA breakdown: fees, duration, statutory rights and where each one actually leads.
10 min read

Built by Shivam
Built by Shivam, a CA Intermediate student. Not a Chartered Accountant; the tools are not reviewed by one.
Questions people ask
Do you store what I type?
Your figures are calculated in your browser. Analytics and the optional feedback form are separate; see the Privacy page. If you choose to save a scenario or download a summary, it is kept only in your own browser storage, and you can clear it at any time. Like most sites, we keep ordinary server logs and use analytics and advertising cookies; the privacy policy explains what they cover.
Read the privacy policyWho builds this, and is it reviewed by a Chartered Accountant?
HeyArtha is built by Shivam, a CA Intermediate student. He is not a Chartered Accountant, and the tools are not reviewed by one. Each tool states its method and sources on its own pages, and the test records show how it was compared. For a decision that matters, check your own case with a practising professional.
About HeyArthaHow do you check the results?
Tools are compared with an independent calculation, a second program written separately from the tool, and the differences are listed. Test records are published tool by tool, so some tools are still in preparation. The Test records section above shows which tools have a record, how many cases were compared and how many differences were listed.
How the working is checkedWhich tax year and law do the calculators use?
Each tool page states the tax year or financial rules it uses. Tax calculators implement Tax Year 2026-27 and the Income-tax Act 2025, as amended by Finance Act 2026. Non-tax tools, covering loans, personal money, or investments, use standard financial mathematics rather than statutory tax law. The sources page outlines the legal sections and mathematical baselines behind every tool.
Statutory sourcesIs this tax, legal or investment advice?
No. Everything on HeyArtha is educational information. The calculators show how a figure is worked out under stated rules and assumptions, and the guides explain ideas in plain language. They do not take your whole situation into account. For advice on your own affairs, speak to a qualified professional who can see all your facts.
What is the Daily Brief?
The Daily Brief is an evening summary of finance and tax news, with the source named on each story so you can read the original. It publishes most evenings between 7 and 11 pm IST. Separate pages cover exam updates, traders and tax news, and the brief archive keeps earlier editions.
Open the Daily BriefI think a result is wrong. How do I tell you?
Use the feedback page, and say which tool you used, what you entered and what you expected to see. Tool pages that have a Report a mismatch link lead to the same place. Changes to rules and rates are recorded on the public changelog, so you can see what was changed and when.
Send feedback
Pick a tool and see every step.