Lifestyle and rent presets: estimates, last compiled July 2026. Tax pages cite their own sources. Disclaimer | Contact

TOOL

Advance tax & 234B/C

Type the year’s tax and the TDS already sitting on it. The four installments compute themselves. Type what you actually paid to see 234C and 234B.

Advance tax actually paid (₹)

Advance tax due

₹2,00,000

tax − TDS

Paid by 31 Mar

₹0

234C interest

₹10,100

234B interest

₹8,000

Four installments apply. Liability is above the ₹10,000 gate.

Due Need (cum.) Paid (cum.) 234C

How the split works

Advance tax is not four equal cheques. Section 211 wants 15% of the year’s tax-after-TDS by mid-June, 45% by mid-September, 75% by mid-December, and the rest by 15 March. Miss a rung and Section 234C charges 1% a month on that rung’s shortfall — three months for the first three dates, one month for 15 March.

Two built-in cushions: pay at least 12% by June and that installment’s 234C is nil; pay at least 36% by September and that one is nil. The December and March rungs have no such cushion. Rule 119A floors the shortfall to the next-lower ₹100 before multiplying.

234B is the year-end stick. If what you deposited as advance tax by 31 March is under 90% of tax-after-TDS, 1% a month runs from 1 April until you pay the rest (self-assessment, usually). TDS does not go in the four paid boxes; it is already netted off at the top.

What to put on Challan 280

  • Form: ITNS-280, via e-Pay Tax on the income-tax portal.
  • Assessment year: 2027-28 (this is FY 2026-27 tax).
  • Major head: 0021 — Income Tax (other than companies).
  • Minor head: 100 — Advance Tax. Self-assessment after 31 March is 300, not 100.
  • Keep the CIN (BSR code + date + challan number). It has to match Form 26AS / AIS before you file.

Worked example — the default inputs

Estimated tax ₹2,00,000. No TDS. Nothing paid. Four months after March until you settle.

  • June shortfall ₹30,000 × 3% = ₹900
  • September ₹90,000 × 3% = ₹2,700
  • December ₹1,50,000 × 3% = ₹4,500
  • March ₹2,00,000 × 1% = ₹2,000
  • 234C total ₹10,100. 234B on ₹2,00,000 × 4% = ₹8,000.

Pay ₹24,000 by June and the first 234C line drops to zero (12% harbour). September still hurts.

Questions people actually ask

Who has to pay advance tax?

Anyone whose tax after TDS/TCS is ₹10,000 or more. Salaried people with only TDS usually skip it. Freelancers, traders, landlords, and anyone with a second income usually do not.

What are the four due dates for FY 2026-27?

15 June 2026 (15%), 15 September 2026 (45% cumulative), 15 December 2026 (75%), 15 March 2027 (100%). 44AD and 44ADA pay the whole amount on 15 March only.

How is Section 234C calculated?

One percent per month on the installment shortfall. Three months for the June, September and December misses; one month for 15 March. The base is floored to ₹100 (Rule 119A). If you still hit 12% by June or 36% by September, that installment’s 234C is zero.

How is Section 234B different?

234B is for the year as a whole: if advance tax paid by 31 March is under 90% of tax-after-TDS, you pay 1% per month from 1 April until you clear it. This page asks how many of those months you expect (default 4, i.e. a July filing).

I sold shares in November. Do I still get 234C on June and September?

If the shortfall exists only because capital gains or lottery winnings arose after that due date, and you pay that slice in later installments, 234C on the early dates is waived. Tick the relief box when that is your fact pattern. 234B still looks at 31 March.

Does TDS count as advance tax?

TDS reduces the amount on which the 15/45/75/100 split is computed. It is not typed again in the four “paid” boxes. Those boxes are only what you deposited as advance tax (Challan 280, minor head 100).

What do I put on Challan 280?

ITNS-280. Assessment year 2027-28. Major head 0021 (individuals). Minor head 100 for advance tax. Pay on the e-Pay Tax screen of the income-tax portal. Keep the BSR / challan identification number.

I am on 44ADA. Why are three rows zero?

Section 211 lets presumptive taxpayers pay 100% by 15 March. Tick the 44AD/44ADA box. June/September/December then carry no due and no 234C.

Estimate only

234A (late return), 234D, and company 15/45/75 schedules are not in this page. Type the tax figure you already trust — this is a payment ledger, not a slab engine. Confirm with a CA before you deposit.

Keep Exploring

Related Guides
Tax Calendar & Compliance Dates 2026-27

Advance tax, ITR deadlines, TDS deposit, audit, Form 26AS — all dates.
ITR Filing & Compliance Guide

Which ITR form, deadlines, penalties, advance tax, revised and updated returns.
Related Calculators
Freelancer Tax Calculator

44ADA eligibility and both-regime tax computation.

Open →
← Back to Taxes Decoded Hub
Feedback / Suggestion?