Next dueIncome Tax
30 SEPTax Audit Report · Form 3CA/3CB · AY 2026-27due today 7 OCTTDS / TCS deposit · Deducted in Sep 2026in 7 days 31 OCTITR filing · Audit cases · AY 2026-27in 31 days 15 DECAdvance Tax · 3rd (75%) instalment · FY 2026-27in 76 days 31 DECBelated / revised ITR · AY 2026-27in 92 days 11 OCTGSTR-1 · Outward supplies · Sep 2026in 11 days 15 OCTPF & ESI · Contributions · Sep 2026in 15 days 20 OCTGSTR-3B · Summary return · Sep 2026in 20 days
All due dates
Guide · Calculators & Tools

Advance Tax Calculator FY 2026-27 Installments & Interest

Estimate your advance tax under the new regime, get the four installment amounts due on 15 Jun, 15 Sep, 15 Dec and 15 Mar, and see Section 234B & 234C interest for late payment.

Written by
TaxClue Editorial Desk
Updated
18 August 2026
Reading time
13 min
Questions
14 answered
  • New regime slabs FY 2026-27
  • 234B & 234C interest
  • Free instant result
Quick Answer

You must pay advance tax if your total tax liability after TDS exceeds ₹10,000 in a year. It is paid in four installments — 15% by 15 June, 45% (cumulative) by 15 September, 75% by 15 December and 100% by 15 March. Fall short and you pay 1% per month interest under Section 234B/234C. The calculator below computes your liability on FY 2026-27 new-regime slabs and shows each installment.

Interactive

Advance Tax Calculator — FY 2026-27

Enter your estimated annual income, taxpayer type, TDS already deducted and advance tax paid so far. The tool computes tax on new-regime slabs (with the ₹75,000 salaried standard deduction and Section 87A rebate up to ₹12 lakh) and lays out the installment schedule with any 234B/234C interest.

Your Tax Details — FY 2026-27
Taxpayer Type
Estimated Annual Income ₹10,00,000
⚠️

Advance Tax Applicable

Installment Schedule
InstallmentDue DateCumulative %Amount DueStatus
Pro Tip: Pay your full advance tax by 15 March 2027 to avoid any Section 234B interest. Paying on time across all 4 installments also avoids 234C interest. Use Challan 280 on the Income Tax portal (incometax.gov.in) — select "Advance Tax" as payment type.

◆ EXPERT CONSULTATION

The formula

How Advance Tax Is Worked Out

Advance tax is your estimated total tax for the year, minus TDS, paid ahead in installments rather than as a lump sum at year-end. The steps:

  • Estimate your total income for FY 2026-27 (salary, business, capital gains, rent, interest).
  • Compute tax on the applicable slabs — the calculator uses the new-regime slabs with the ₹75,000 salaried standard deduction.
  • Apply the Section 87A rebate (full rebate up to ₹12 lakh taxable under the new regime) and add 4% cess plus any surcharge.
  • Subtract TDS/TCS already deducted — if the balance exceeds ₹10,000, advance tax applies.
  • Split that balance across the four due dates (15% / 45% / 75% / 100% cumulative).
Presumptive taxpayers get a break

Taxpayers under Section 44AD/44ADA (presumptive scheme) can pay their entire advance tax in a single installment by 15 March instead of four. Senior citizens (60+) with no business income are fully exempt from advance tax.

Due dates

Advance Tax Installment Schedule — FY 2026-27

InstallmentDue DateCumulative % of TaxWhat to Pay
1st Installment15 June 202615%15% of estimated total tax
2nd Installment15 September 202645%45% cumulative (30% more)
3rd Installment15 December 202675%75% cumulative (30% more)
4th Installment15 March 2027100%Remaining balance

Same four dates apply to individuals and companies. Presumptive-income taxpayers may pay 100% by 15 March in one go.

Late payment

Interest Under Section 234B & 234C

Section 234B: charged when advance tax paid is less than 90% of assessed tax — interest of 1% per month on the shortfall from 1 April until the tax is paid.

Section 234C: charged when an individual installment falls short of the required cumulative percentage — 1% per month for 3 months on each shortfall (1 month for the final installment).

Shortfall atRequired CumulativeInterest if Short
15 Jun 202615%1% × 3 months (234C)
15 Sep 202645%1% × 3 months (234C)
15 Dec 202675%1% × 3 months (234C)
15 Mar 2027100%1% × 1 month (234C)
After year-end< 90% of tax1%/month (234B) till paid

Interest under 234B and 234C is computed on the deficit amount, rounded down to the nearest ₹100.

Capital gains? You get relief

For capital gains or lottery/dividend income arising after an installment date, no 234C interest applies provided the tax on it is paid in the remaining installments (or by 31 March for income arising in the last quarter).

Sources
  1. Portal & e-Pay Tax: incometax.gov.in
  2. Advance tax & interest: Sections 208, 211, 234B, 234C, Income-tax Act
  3. FY 2026-27 slabs & 87A rebate: Union Budget 2025, continued under the Income-tax Act, 2025

Disclaimer: This guide is general information based on the law and notifications in force when it was last updated. It is not professional advice for your case — rates, thresholds and due dates change, so check the current position or speak to our CA team before you act on it.

People also ask

Questions, answered

Short, direct answers to the 14 questions readers ask most on this topic.

Anyone whose total tax liability for the year exceeds ₹10,000 after TDS must pay advance tax — salaried employees with side income (capital gains, rent, FD interest), freelancers, professionals and businesses. Salaried people whose employer deducts full TDS on salary alone usually need not pay it. Senior citizens (60+) with no business income are exempt.

Four installments: 15 June 2026 (15% of tax), 15 September 2026 (45% cumulative), 15 December 2026 (75% cumulative) and 15 March 2027 (100%). The same dates apply to companies and individuals.

Advance tax is payable only if your estimated total tax for the year, after reducing TDS and TCS, is ₹10,000 or more. If your net tax after TDS is below ₹10,000, you owe no advance tax and can settle any small balance as self-assessment tax while filing your ITR.

It computes tax on the new-regime slabs for FY 2026-27 — nil up to ₹4 lakh, then 5% / 10% / 15% / 20% / 25% / 30% up to and above ₹24 lakh — with the ₹75,000 salaried standard deduction and Section 87A rebate giving zero tax up to ₹12 lakh taxable income.

Estimate your total annual income, compute tax on the slabs, apply the 87A rebate, add 4% cess and any surcharge, then subtract TDS/TCS already deducted. If the balance exceeds ₹10,000 you pay it across the four installment dates in the 15/45/75/100 cumulative pattern.

Yes — capital gains must be included in the advance tax estimate. But because gains can be unpredictable, if a gain arises after an installment date, you can pay the tax on it in the remaining installments (or by 31 March for the last quarter) without attracting Section 234C interest.

Not usually, if the employer deducts full TDS on salary. But if you have significant other income — capital gains, rental income, interest, freelance or dividend income — on which TDS is insufficient, and the extra tax exceeds ₹10,000, you must pay advance tax on it.

Salaried and pension taxpayers get a ₹75,000 standard deduction under the new regime for FY 2026-27. The calculator subtracts it from salary income before applying the slabs, which lowers the tax and therefore the advance-tax installments. Business/freelance income does not get this deduction.

There is no fixed penalty, but interest applies. Section 234B charges 1% per month if advance tax paid is under 90% of assessed tax. Section 234C charges 1% per month for shortfalls in each installment. Both are on the deficit amount and add up quickly over the year.

234B applies to an overall shortfall — if total advance tax paid is less than 90% of assessed tax, interest runs from 1 April of the assessment year until the tax is paid. 234C applies to timing — a shortfall at any individual installment date attracts 1% per month for 3 months (1 month for the last installment).

Yes — pay at least the required cumulative percentage by each due date (15%, 45%, 75%, 100%). There is also relief: if you pay at least 12% by 15 June and 36% by 15 September, the 234C interest on those two installments is waived, and capital-gains/dividend income arising later is protected if paid in the remaining installments.

Go to incometax.gov.in → e-Pay Tax → New Payment → Income Tax → select "Advance Tax (100)". Choose the assessment year, enter the amount and pay by net banking, UPI or card. Save the challan (CIN) — you will need it when filing your ITR.

Yes. Taxpayers opting for the presumptive scheme under Section 44AD (business) or 44ADA (professionals) can pay 100% of their advance tax in a single installment by 15 March instead of four, without 234C interest.

Any excess advance tax over your final liability is refunded after you file your ITR, and the department pays interest under Section 244A on the refund. So paying a little extra is safer than underpaying and incurring 234B/234C interest.