How to Get Advance Tax Computation in India
Advance tax is the pay-as-you-earn scheme under the Income-tax Act, 1961, that requires individuals, professionals, and businesses to pay income tax in instalments during the financial year itself rather than as a lump sum after March 31. It applies to anyone whose estimated tax liability for the year, after deducting TDS, exceeds ₹10,000 — this covers most self-employed professionals, freelancers, directors with non-salary income, and companies, though salaried individuals with tax fully covered by employer TDS are generally exempt. Falling short of the prescribed instalment thresholds attracts interest under Sections 234B and 234C, which compounds monthly and can meaningfully erode cash flow if liabilities are underestimated. Because advance tax is based on an estimate of income that has not yet fully materialised, getting the computation right requires periodically revisiting projections as the year progresses — especially for businesses with seasonal revenue, capital gains, or other lump-sum receipts. This guide walks through the full computation-to-payment-to-return-filing cycle so instalments are accurate, timely, and properly reflected in the eventual ITR.
Before you start
- PAN of the taxpayer (individual, firm, or company) and login credentials for the income tax e-filing portal
- Financial statements or management accounts (provisional P&L and balance sheet) reflecting income to date in the financial year
- Estimated income projection covering business/professional income, capital gains, rental income, and other sources for the full financial year
- Details of TDS and TCS already deducted or expected to be deducted during the year, available via Form 26AS/AIS
- Prior year's computation of total income and tax paid, for comparison and sanity-checking the current estimate
- Bank account details for making the challan payment (net banking or debit card linked to the account used for tax payment)
- Details of eligible deductions (Chapter VI-A) and exemptions expected to be claimed for the year
- For companies/firms subject to tax audit, relevant books of account or accounting software access to derive interim figures
Step-by-step
Determine whether advance tax applies to you
Advance tax is payable by any taxpayer — individual, HUF, firm, LLP, or company — whose estimated tax liability for the financial year, net of TDS/TCS credit, is ₹10,000 or more. Salaried individuals whose entire tax liability is covered by employer TDS typically do not need to pay separately, but professionals, freelancers, landlords with rental income, and anyone with capital gains or business income usually do.
Resident senior citizens (60 years or above) who do not have income from business or profession are exempt from the advance tax requirement, even if their liability crosses the threshold.
Estimate total income for the financial year
Project your total income for the full financial year (April to March) across all heads — salary, business/professional income, capital gains, house property, and other sources. For business income, extrapolate from actual results to date, adjusted for known seasonal patterns, rather than a simple straight-line projection.
Build in a reasonable buffer for late-year events such as bonus receipts, asset sales, or dividend income that may not be visible early in the year — under-estimation is the most common cause of interest under Section 234C.
Compute estimated tax liability under the applicable regime
Apply the applicable income tax slab rates (comparing the old and new tax regimes where the choice is available) to arrive at gross tax liability. Add applicable surcharge (where total income crosses the relevant thresholds) and health and education cess at 4%.
Deduct eligible rebates (such as under Section 87A, where applicable) and Chapter VI-A deductions if computing under the old regime, or the standard deduction and limited deductions permitted under the new regime.
Net off TDS, TCS, and available tax credits
Subtract TDS already deducted (or reasonably expected to be deducted) by clients, tenants, banks, or employers, along with TCS collected and any brought-forward MAT/AMT credit that can be set off in the current year. Cross-check the TDS figure against Form 26AS and the Annual Information Statement (AIS) to avoid relying on stale or incomplete data.
The resulting net figure is your advance tax liability for the year — this is the number that gets split across the four instalments.
Split the liability across the four statutory instalments
For non-corporate and corporate taxpayers alike, cumulative advance tax paid must meet at least:
- 15% of the liability by the 1st instalment (on or before June 15)
- 45% by the 2nd instalment (on or before September 15)
- 75% by the 3rd instalment (on or before December 15)
- 100% by the 4th instalment (on or before March 15)
Taxpayers who opt for the presumptive taxation scheme under Section 44AD or 44ADA can instead pay 100% of their liability in a single instalment on or before March 15, with no requirement to split across the year.
Generate the tax payment challan (Challan No. 280)
Advance tax is paid using Challan No. ITNS 280 (now generated through the e-Pay Tax service on the income tax e-filing portal, having replaced the earlier NSDL/OLTAS interface for most taxpayers). Select 'Advance Tax (100)' as the type of payment and enter the assessment year correctly — this is the year following the financial year in which income is earned.
Double-check the assessment year field before submitting; a challan filed against the wrong assessment year is a common error that complicates credit reconciliation later.
Make the payment and retain proof
Pay the computed instalment via net banking, debit card, RTGS/NEFT, or over the counter at authorised bank branches, depending on the amount and mode permitted. Download and retain the challan receipt (which carries the BSR code, challan serial number, and payment date) — these details are needed when reporting advance tax payments in the ITR.
Keep both a digital copy and, where practical, a printed copy filed with the year's tax records.
Reassess and revise estimates before each subsequent instalment
Before each of the September, December, and March instalment dates, revisit the income projection in light of actual results for the elapsed months and revise the remaining instalments upward or downward as needed. The law permits revising estimates at any instalment — there is no penalty for adjusting a prior estimate, only for underpaying the cumulative percentage due at each date.
This step is particularly important for businesses whose income is back-loaded (e.g., festive-season retail, year-end services) since early instalments based on partial-year data can materially understate the eventual liability.
Reconcile advance tax paid with Form 26AS/AIS
After the March 15 instalment, verify that all challan payments appear correctly against your PAN in Form 26AS and the AIS on the income tax portal — this can take a few days to reflect after payment. Discrepancies (wrong assessment year, wrong PAN, or a payment not reflecting at all) should be flagged and corrected before the return is filed.
Report advance tax in the Income Tax Return
While filing the ITR (due date typically July 31 for non-audit taxpayers and later for those subject to tax audit or transfer pricing provisions — confirm the current year's due date on the e-filing portal), report each advance tax instalment paid, along with the BSR code and challan details, under the taxes paid schedule. The portal auto-populates most of this from Form 26AS/AIS, but it should still be cross-verified against your own challan records.
Any shortfall between total tax liability and advance tax plus TDS paid is payable as self-assessment tax before filing.
Compute and settle any 234B/234C interest exposure
If advance tax paid falls short of 90% of the assessed tax liability, interest under Section 234B applies from April 1 of the assessment year until the date of payment. If any instalment falls short of the prescribed cumulative percentage, interest under Section 234C applies for the shortfall at that instalment date, generally computed at 1% per month for a limited period per default.
A professional can help compute this interest precisely, as it varies by instalment and taxpayer category (presumptive-scheme taxpayers have a different 234C exposure structure than others).
Retain records for the assessment cycle
Keep the income projection working papers, challan receipts, Form 26AS/AIS extracts, and the final ITR acknowledgement together for at least the period during which the return remains open to scrutiny or reassessment under the applicable limitation provisions. These records are the primary support if the estimate is questioned or if a mismatch arises during processing.
Common mistakes to avoid
- Assuming advance tax only applies to companies — any individual or professional with TDS-net liability of ₹10,000 or more is covered, including freelancers and landlords.
- Straight-lining partial-year results without adjusting for known seasonal or one-off income, leading to a significant final-quarter shortfall.
- Selecting the wrong assessment year on Challan No. 280, which causes the payment to not reflect correctly in Form 26AS.
- Ignoring capital gains or one-off receipts (such as property sales) that arise mid-year, which still require advance tax within the instalment for the period in which they arise.
- Failing to revise later instalments after early ones prove to be under- or over-estimates, resulting in avoidable 234C interest.
- Not reconciling TDS credit against Form 26AS/AIS before computing the net advance tax due, leading to double-counting or missed credit.
- Treating the March 15 instalment as optional for presumptive-scheme taxpayers under Section 44AD/44ADA — it remains the sole mandatory instalment date for them.
- Overlooking surcharge thresholds when income crosses ₹50 lakh, ₹1 crore, or higher slabs, which changes the effective tax rate mid-computation.
Frequently asked questions
Who is required to pay advance tax in India?
Any taxpayer — individual, HUF, partnership firm, LLP, or company — whose estimated tax liability for the financial year, after deducting TDS and TCS, is ₹10,000 or more must pay advance tax. Resident senior citizens (60 years and above) without business or professional income are exempt from this requirement.
What are the due dates for advance tax instalments?
For most taxpayers the instalments fall on June 15 (15% of liability), September 15 (45% cumulative), December 15 (75% cumulative), and March 15 (100% cumulative). Taxpayers under the presumptive taxation scheme (Sections 44AD/44ADA) need only pay the full 100% by March 15 in a single instalment.
What happens if I miss an advance tax instalment or underpay it?
Underpayment against the cumulative percentage due at each instalment date attracts interest under Section 234C, generally computed at 1% per month on the shortfall for a limited period. If total advance tax paid falls short of 90% of the final assessed liability, interest under Section 234B also applies from April 1 of the assessment year until the balance is paid — confirm current rates and computation mechanics with your tax advisor, as these are prescribed by statute and subject to periodic clarification.
How do I pay advance tax online?
Advance tax is paid using Challan No. ITNS 280 through the e-Pay Tax service on the income tax e-filing portal. Select 'Advance Tax (100)' as the payment type, enter the correct assessment year, and complete payment via net banking, debit card, or other permitted modes; retain the challan receipt for your records.
Can I revise my advance tax estimate mid-year?
Yes. There is no restriction on revising your income and tax estimate before each subsequent instalment date. In fact, doing so is expected, since early estimates are necessarily based on partial-year data — the only consequence for a low early estimate is potential 234C interest if the cumulative percentage due at that date wasn't met.
Is advance tax applicable on capital gains from selling property or shares?
Yes. Capital gains are included in the total income estimate for the year in which they arise, and the corresponding advance tax becomes due for the instalment period covering that event. Where a capital gain arises after an earlier instalment date has passed, the tax on it is generally payable with the next instalment falling due, without triggering 234C interest for the earlier instalments that could not have accounted for it.
Do salaried employees need to pay advance tax separately?
Usually not, if their entire tax liability is covered by employer TDS. However, salaried individuals with additional income — such as rental income, capital gains, freelance earnings, or interest income — that pushes their net liability above ₹10,000 after TDS credit do need to pay advance tax on that additional liability.
What is Form 26AS and AIS, and why do they matter for advance tax?
Form 26AS and the Annual Information Statement (AIS) are portal-based statements that consolidate TDS, TCS, and self-paid tax challans linked to your PAN. Reconciling your advance tax payments against these before filing the return ensures the payments are correctly credited and helps catch errors like a wrong assessment year on a challan.
What is the difference between advance tax and self-assessment tax?
Advance tax is paid in instalments during the financial year based on an estimate of income for that year. Self-assessment tax is any balance tax paid after the year ends, at the time of filing the return, once actual total income and final liability are known — it fills the gap between what was paid as advance tax/TDS and the final computed liability.
Does advance tax apply to companies subject to tax audit differently?
The instalment structure and percentages are the same across taxpayer categories, but companies and firms subject to tax audit or transfer pricing provisions generally have a later ITR filing due date than non-audit taxpayers. This does not extend the advance tax instalment dates themselves, which remain fixed regardless of the eventual filing deadline.
Can advance tax be paid in cash?
Payment is largely digital today via the e-Pay Tax service, though over-the-counter payment at authorised bank branches remains available for amounts within the limits permitted by the bank's cash-handling policy. Most taxpayers find net banking or debit card payment through the portal the fastest route, with an immediate downloadable receipt.
What records should I keep after paying advance tax?
Retain the income projection working papers used for each instalment, all challan receipts (with BSR code and challan serial number), the Form 26AS/AIS extract showing the credit, and the final ITR acknowledgement. These should be kept for as long as the return remains open to scrutiny or reassessment under the applicable limitation period, so they are available if the estimate or payment is ever questioned.
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