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Guide · Calculators & Tools

Advance Tax Calculator
FY 2025-26 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.

TaxClue Editorial Desk Updated 18 August 2026 13 min read 14 FAQs answered
New regime slabs FY 2025-26 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 2025-26 new-regime slabs and shows each installment.

Threshold ₹10,000
Installments 4
Interest 1%/mo
Final date 15 Mar
Interactive

Advance Tax Calculator — FY 2025-26

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 2025-26
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 2026 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.

◆ FREE 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 2025-26 (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 2025-26

InstallmentDue DateCumulative % of TaxWhat to Pay
1st Installment15 June 202515%15% of estimated total tax
2nd Installment15 September 202545%45% cumulative (30% more)
3rd Installment15 December 202575%75% cumulative (30% more)
4th Installment15 March 2026100%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 202515%1% × 3 months (234C)
15 Sep 202545%1% × 3 months (234C)
15 Dec 202575%1% × 3 months (234C)
15 Mar 2026100%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).

Government sourcesPortal & e-Pay Tax: incometax.gov.in · Advance tax & interest: Sections 208, 211, 234B, 234C, Income-tax Act · FY 2025-26 slabs & 87A rebate: Union Budget 2025
People also ask

Frequently Asked Questions

Basics
Who needs to pay advance tax?
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.
What are the advance tax due dates for FY 2025-26?
Four installments: 15 June 2025 (15% of tax), 15 September 2025 (45% cumulative), 15 December 2025 (75% cumulative) and 15 March 2026 (100%). The same dates apply to companies and individuals.
What is the ₹10,000 threshold?
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.
Which tax regime does this calculator use?
It computes tax on the new-regime slabs for FY 2025-26 — 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.
Calculation
How is advance tax calculated?
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.
Is advance tax applicable on capital gains?
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.
Do salaried employees need to pay advance tax?
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.
How does the standard deduction affect advance tax?
Salaried and pension taxpayers get a ₹75,000 standard deduction under the new regime for FY 2025-26. 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.
Interest & Penalty
What is the penalty for not paying advance tax?
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.
What is the difference between Section 234B and 234C?
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).
Can I avoid 234C interest?
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.
Payment
How do I pay advance tax online?
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.
Can presumptive-scheme taxpayers pay advance tax once a year?
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.
What if I overpay advance tax?
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.
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