Advance Tax Calculator · FY 2026-27

Never miss an installment.

Estimate your advance tax payable for FY 2026-27 after TDS, and see exactly how much is due at each of the four statutory installments — 15 June, 15 September, 15 December and 15 March.

Updated July 2026
Built by CA Anil Agarwal

Estimated annual income (₹)

Total income you expect to earn this FY — salary, business, professional fees, interest, rent etc.

Tax regime

Salaried / pensioner
Apply standard deduction (₹75,000 new / ₹50,000 old). Turn off for pure business/professional income.

TDS already deducted / expected (₹)

TDS deducted by your employer or clients reduces the advance tax you must pay yourself.

Advance tax payable

₹97,500

Advance tax applies — liability is ₹10,000 or more.

Taxable income: ₹14,25,000
Total income tax: ₹97,500
− TDS: − ₹0
Advance tax payable: ₹97,500

Installment schedule — FY 2026-27

Due date	Cumulative %	Installment due	Cumulative paid
1st installment 15 June 2026	15%	₹14,625	₹14,625
2nd installment 15 September 2026	45%	₹29,250	₹43,875
3rd installment 15 December 2026	75%	₹29,250	₹73,125
4th installment 15 March 2027	100%	₹24,375	₹97,500

This is an ESTIMATE. Advance tax is based on income you expect to earn — revise your estimate each quarter as actuals come in. Interest under Sections 234B/234C applies for shortfall or delay, which this calculator does not compute. Capital gains, lottery/gaming income and other special-rate items are not modelled. Confirm your figure with a Chartered Accountant before paying.

Books that track advance tax all year, not just at deadline.

TatvaBooks keeps income, TDS and expense figures current so your advance tax estimate is a live number — not a scramble every quarter. Get a due-date reminder before each installment.

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How it works

Pay as you earn, not all at once.

Why advance tax exists

Advance tax spreads your annual tax liability across the year instead of letting it pile up as one bill at filing time — the "pay-as-you-earn" scheme. It applies to anyone whose net tax liability (after TDS) is ₹10,000 or more for the year, covering salary, business/professional income, capital gains, rent, interest and other heads.

The four installments

The statutory schedule requires 15% of your estimated liability by 15 June, a cumulative 45% by 15 September, a cumulative 75% by 15 December, and the full 100% by 15 March. Each installment is calculated as the incremental amount needed to reach that cumulative percentage — which is exactly what the schedule table above shows.

Presumptive taxation is different

Taxpayers who opt for presumptive taxation under Section 44AD (business) or 44ADA (specified professions) don't follow the four-installment schedule — they can pay 100% of their advance tax liability in a single installment by 15 March, which simplifies compliance for small businesses and freelancers.

Interest for shortfall — 234B and 234C

If you underpay an installment, Section 234C charges 1% per month interest on the shortfall for that quarter. If your total advance tax paid by 31 March is less than 90% of the final liability, Section 234B charges 1% per month from April onward until you file and pay. Both are separate from — and in addition to — the principal tax itself, so it pays to revise your estimate each quarter rather than wait till March.

What this calculator does not cover

Capital gains at special rates, lottery/gaming income, marginal relief on surcharge, and 234B/234C interest computation are not modelled here — this tool estimates the principal installment schedule only. For a full advance-tax and TDS reconciliation, see our income tax guide and TDS guide, or speak to a Chartered Accountant.

Frequently asked questions

Advance tax calculator — common questions.

What is advance tax and who needs to pay it?

Advance tax is income tax paid in installments during the financial year, as you earn, rather than as one lump sum at filing time. Anyone — salaried, self-employed, freelancer or business — whose total tax liability for the year (after TDS) is ₹10,000 or more must pay advance tax. Salaried individuals with only salary income and correctly deducted TDS usually don't need to pay separately, since their employer already withholds tax each month.

What are the advance tax due dates for FY 2026-27?

Four installments: 15% of the total liability by 15 June 2026, 45% (cumulative) by 15 September 2026, 75% (cumulative) by 15 December 2026, and 100% by 15 March 2027. Taxpayers under the presumptive taxation scheme (Section 44AD/44ADA) can instead pay 100% in a single installment by 15 March.

How does this advance tax calculator work?

Enter your estimated annual income, pick your tax regime, and enter any TDS already deducted or expected. The calculator computes total income tax using the same FY 2026-27 slab logic as our income tax calculator (including 87A rebate, surcharge and 4% cess), subtracts your TDS to get advance tax payable, and splits that amount into the four statutory installments with due dates.

What happens if I miss an installment or underpay?

Interest under Section 234C applies for shortfall in any installment, and Section 234B applies if you've paid less than 90% of your total tax liability by 31 March. Both are calculated at 1% per month on the shortfall. This calculator does not compute 234B/234C interest — it only shows the principal installment schedule. Revise your estimate each quarter as actual income becomes clearer to minimise interest exposure.

My income is unpredictable — how do I estimate it for advance tax?

Use your best estimate for the full year based on income earned so far, annualised, plus any known upcoming receipts. It's normal to revise the estimate at each installment — the law only requires that the cumulative percentage paid by each due date roughly matches the cumulative slab (15% / 45% / 75% / 100%) of your then-current estimate, not a perfectly accurate forecast from day one.

Books that keep advance tax on autopilot.

TatvaBooks tracks your income and TDS across heads all year, so your advance tax estimate stays current — not a March scramble.

Request beta access See features