CA. Akhilesh Kumarcaakhilesh.in
Open Finance GPT
Chartered Accountant · ICAI 2022 · Gurgaon

India Tax & Money Decision Intelligence platform

14 calculators, a Tax Decision Engine and a source-grounded copilot for Indian income tax, GST, salary and investing — built by a Chartered Accountant who runs a company's finance function. Every rule is tied to its section and an official source, the arithmetic is shown on the page, and nothing you type leaves your browser.

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  • 32pieces, numbers on the page
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  • 2022ICAI-qualified, in industry
Tax & Money DashboardTax year 2026-27 Runs in your browser · nothing stored 16 Sept 2026
  • Next advance tax instalment 15 Dec 15 Dec 2026 · 75% of the year’s tax Plan it →
  • Next GST return 20 Sept GSTR-3B and tax for Aug All due dates →
  • Calculators 14 live Tax 7 · Salary 2 · Loans 2 · Tools 1 · Investing 1 · GST 1 Open all →
  • Writing 32 pieces 19 in the last 30 days · latest 16 Sept 2026 All writing →
Compliance calendarnext 6 dates
  • GSTR-3B and tax for AugMonthly filers GST 20 Sept 2026
  • Tax audit report (Form 3CA/3CB with 3CD) for 2025-26Turnover above the section 44AB limits Tax 30 Sept 2026
  • Statutory audit and AGM: accounts for 2025-26 adoptedEvery company (Companies Act, section 96) Company 30 Sept 2026
  • DIR-3 KYC for directorsEvery DIN holder Company 30 Sept 2026
  • TDS / TCS deposit for SeptEvery deductor Tax 07 Oct 2026
  • GSTR-1 for SeptMonthly filers GST 11 Oct 2026

Monthly TDS, GST and payroll dates, the advance-tax instalments, tax audit, AGM and RoC filings, and the year-end returns. Weekends and notified extensions are not applied.

New regime slabs2026-27
  • 0%to 4L
  • 5%4–8L
  • 10%8–12L
  • 15%12–16L
  • 20%16–20L
  • 25%20–24L
  • 30%24–24L+

Nil to ₹12 lakh after the section 87A rebate; standard deduction ₹75,000 for salary. Compare with the old regime →

CalculatorsOpen all ›
Financial health Tools CTC breakup Salary Investment returns Investing TDS Tax Income tax — advance Tax NRI income tax Tax Income tax Tax Capital gains Tax GST GST Advance tax Tax Gratuity Salary HRA exemption Tax Reducing balance EMI Loans Flat rate EMI Loans
Latest piecesAll writing ›
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  • 1accountant, checking each rule against its section
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Free tax & finance calculators

Calculate first. Understand second.

Each tool shows its working, runs in your browser, and can be shared as a link or a PDF. No sign-up, nothing stored.

Income Tax calculator Old and new regime side by side, slab by slab. CTC Breakup calculator From cost-to-company to in-hand, with EPF, ESI and gratuity. TDS calculator The section, the rate and the net, for whatever you are paying. Investment Returns calculator Lump sum, SIP or step-up SIP, and the real annualised return. EMI calculator Monthly instalment and total interest the way banks charge it.

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The method

Four steps. One accountant. No hot takes.

Every piece on this site goes through the same four steps, and the calculators are built to the same rule: the working is on the page so it can be checked.

01Read

Start from the statute, not the summary.

A rule is quoted from the section it lives in, with the section named — old number and new, where the 2025 Act renumbered it.

 02Work

Worked through, not asserted.

If a piece says a figure, the arithmetic is on the page. The calculators show the formula they use rather than hiding it.

 03Check

Four rules, and I'd like to be held to them.

No affiliate links or sponsored posts. Sources named. Numbers checked against the current Finance Act before anything is published.

 04Correct

Fixed where it stands, and noted.

Corrections go into the piece itself and are recorded at its foot, so a later reader sees the right figure and an earlier one sees what changed.
Latest

The newest piece.

Direct Tax
Featured DIRECT TAXOld Regime or New:How to ActuallyDecideFind your break-even deduction D; old regimewins only if real deductions exceed it.CA Akhilesh Kumar· caakhilesh.inTAX PAYABLE · OLD VS NEW REGIMENIL₹8L₹12L₹16L₹20L₹24LOLDNEWILLUSTRATIVE · INCOME →1 numberBreak-evendeduction DYearlySalaried canswitchOnceBusinessincome:near-fixedTAX PAYABLE · OLD VS NEW REGIMENIL₹8L₹12L₹16L₹20L₹24LOLDNEWILLUSTRATIVE · INCOME →Nº 41
Direct Tax 18 Aug 2026 · 8 min read

Old Regime or New: How to Actually Decide

The comparison everyone runs is the wrong one. Instead of asking which regime is better, work out your break-even deduction — the single number that settles it in about two minutes.

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Recent

The last six pieces.

All 32 articles, by subject
Career 16 Sept 2026 01 India Job Market 2026: What the Data Actually Shows Behind the Layoff Headlines India job market 2026 trends with the numbers, not the noise: white-collar hiring at a three-year high, unemployment at 5.1%, which sectors are hiring, the AI jobs paradox, gig work, the skills that get you hired — and how to check a role's pay evidence or a suspicious offer before you act. Read more Direct Tax 15 Sept 2026 02 Influencer Tax Planning in India (2026-27): How Creators, Freelancers and Small Businesses Save Tax the Legal Way Social media income tax planning, worked out on real numbers: when the 6% presumptive scheme makes you tax-free, when an HUF genuinely works, when an LLP or Pvt Ltd pays for itself — and the free business tax planning tool that runs all of it on your figures. Read more Markets 14 Sept 2026 03 Altman Spells Out the AI Slowdown: Safety Cases, Two Red Lines, and a China Problem Nobody Can Solve Alone Forty-eight hours after three rivals agreed AI should slow down, Sam Altman said how: safety cases before big training runs, outside auditors, no waiting for Washington. Then Trump said no, Beijing called it fear-mongering, and the chip stocks that feed the labs fell hard in Asia. The state of play, in plain English. Read more Markets 13 Sept 2026 04 Anthropic, OpenAI and Elon Musk Just Agreed on Something Rare: AI Needs to Slow Down Dario Amodei, Sam Altman and Elon Musk — three people who have spent years disagreeing in public — said the same thing within hours of each other. What actually happened, what triggered it, and what the sceptics say, in plain English. Read more Markets 12 Sept 2026 05 AI Is Cutting Your Own Hand: What the Data Shows About Human Skills, Thinking and Trust It is not AI losing anything. Brain scans, a study of 666 people and the month bots became the majority of web traffic show what happens to human skill, thinking and judgment when we hand over the hard part. Read more Fintech 11 Sept 2026 06 Anthropic's September 2026 Threat Report: Hackers, Spies and Propagandists Tried to Weaponise Claude, and Were Caught A Russian espionage group, a lone hacker in France, a company selling election manipulation as a service. Anthropic's latest threat report lists who tried to misuse Claude over nine months, what they got, and where each one was stopped. A plain-language walk through it. Read more

Latest tax & finance updates

Curated · updated 17 Sept 2026

Links to reporting published elsewhere, selected for relevance. The original reporting belongs to each publisher.

Mint — Markets US Fed rate hike impact on Indian economy: FOMC outcome effect decoded — opens Mint — Markets in a new tab 17 Sept 2026 Mint — Markets Gold falls more than 1% after Fed hikes interest rates — opens Mint — Markets in a new tab 17 Sept 2026 Mint — Markets US Fed Rate Hike Impact on American Treasuries: FOMC outcome effect decoded — opens Mint — Markets in a new tab 17 Sept 2026 Mint — Markets Turkish Funds With $7.5 Billion Assets Default on Redemptions — opens Mint — Markets in a new tab 17 Sept 2026 RBI Conversion/Switch of Government of India Securities — opens RBI in a new tab 17 Sept 2026

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Frequently asked

What people ask before they read on.

Something else? Write to hello@caakhilesh.in and the accountant who wrote the piece will reply.

Who writes this?

CA Akhilesh Kumar, a Chartered Accountant qualified with the ICAI in 2022 and a Senior Finance Manager in industry in Gurgaon. Every piece and calculator here is his own work.

Is any of this advice?

No. It is general information written for education, not tax, financial, investment or legal advice, and it takes no account of your circumstances. For your own position, engage a professional who can see your facts.

Do the calculators store what I type?

No. The arithmetic runs in your browser and nothing is sent to a server. A share link carries the figures after the # in the address, which browsers never send to a server; the PDF is built on your own device.

How current is the tax content?

Pieces name the provision they rest on, and the calculators follow the Income-tax Act, 2025 where it applies from 1 April 2026. The law moves with every Finance Act, so check the date on a piece before acting on it.

Can I quote a figure or link to a calculator?

Yes. Every calculator has a ready-made credit line, and the articles can be linked freely. A link back is all that is asked.

Are there affiliate links or sponsored pieces?

None. No affiliate links, sponsored posts, referral codes or adverts.

One piece, every fortnight

The email list opens shortly. Until then, new pieces are on the RSS feed and on LinkedIn — and corrections, disagreements and article suggestions are welcome by email.

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