"We'll pay the whole tax in March": what Section 211 advance tax instalments actually require

A founder tells us the company will be profitable this year, maybe ₹1.2 crore of profit before tax, and that the CA will "sort out the tax in March." The company pays nothing in June, nothing in September, nothing in December, and clears the entire liability on 14 March. The tax gets paid in full, on time, before the financial year even closes. And the company still owes roughly ₹90,000 in interest it never budgeted for.

This is the most common — and most avoidable — cash leak on an Indian private limited company's P&L. Advance tax is not a year-end obligation. It is a four-instalment schedule, and missing each instalment carries its own separate interest charge.

What the law actually requires

Section 208 of the Income-tax Act, 1961 sets the trigger. Every assessee whose estimated tax liability for the year is ₹10,000 or more must pay advance tax. There is no turnover threshold, no profit threshold, and no exemption for small or newly incorporated companies. If your Pvt Ltd expects a tax liability above ₹10,000 — which is essentially any company with taxable profit above about ₹45,000 under Section 115BAA — advance tax applies from year one.

Section 211 sets the schedule. For companies, all four instalments are mandatory:

The percentages are cumulative, not incremental. By 15 September you must have paid 45% of the year's total advance tax in aggregate — not 45% on top of the June 15%. A common bookkeeping error is treating each figure as a fresh slice, which under-pays every instalment after the first.

Note the important carve-out at the fourth proviso to Section 211: the relaxed schedule that lets an eligible assessee under the presumptive scheme (Section 44AD/44ADA) pay 100% in a single 15 March instalment applies only to individuals, HUFs, firms and LLPs electing presumptive taxation. A company cannot elect Section 44AD. The four-instalment schedule is unconditional for a Pvt Ltd.

Section 234C charges interest for deferment of an instalment. The rate is 1% per month, simple interest, computed as follows:

• Shortfall in the June instalment: 1% × 3 months
• Shortfall in the September instalment: 1% × 3 months
• Shortfall in the December instalment: 1% × 3 months
• Shortfall in the March instalment: 1% × 1 month

Crucially, Section 234C has a built-in tolerance for the first two instalments. Interest for the June instalment is triggered only if the tax paid is less than 12% of assessed tax (not 15%), and for September only if less than 36% (not 45%). There is no such cushion for December and March — you must hit 75% and 100% exactly.

Two further reliefs sit in the proviso to Section 234C. No 234C interest arises where the shortfall is attributable to (a) capital gains, or (b) income from a newly commenced business — provided the tax on that income is paid in the remaining instalments, or by 31 March if the income arose after the last instalment date. This is a genuine shelter for a company that closes an unexpected asset sale in Q4; it is not a shelter for ordinary operating profit that was foreseeable in June.

Section 234B is a different charge for a different failure. It applies where the total advance tax paid during the year is less than 90% of assessed tax. Interest runs at 1% per month from 1 April of the assessment year until the date of payment of the shortfall. So a company that pays nothing until it files its ITR-6 in October is looking at seven months of 234B interest on top of whatever 234C it has already accrued.

The two sections stack. They are not alternatives.

Practical implications

Take the company above: ₹1.2 crore profit before tax, opting for the concessional regime under Section 115BAA (22% base plus 10% surcharge plus 4% cess = 25.168% effective). Total tax ≈ ₹30.2 lakh.

Under Section 211, the schedule should have been ₹4.53 lakh by 15 June, ₹13.59 lakh cumulative by 15 September, ₹22.65 lakh by 15 December, ₹30.2 lakh by 15 March.

Pay nothing until 14 March and Section 234C bites four times:

• June shortfall ₹4.53 lakh × 1% × 3 = ₹13,590
• September shortfall ₹13.59 lakh × 1% × 3 = ₹40,770
• December shortfall ₹22.65 lakh × 1% × 3 = ₹67,950
• March: paid in full, so nil

Total 234C ≈ ₹1.22 lakh. Because the full amount was paid before 31 March, the company clears the 90% test and escapes Section 234B entirely. Had the same company waited until filing its return in October, Section 234B would have added roughly ₹30.2 lakh × 1% × 7 months = ₹2.11 lakh on top.

None of this interest is deductible. Section 40(a)(ii) disallows income tax and any interest thereon as a business expense. So ₹1.22 lakh of avoidable interest costs the company ₹1.22 lakh of post-tax cash — there is no shield.

There is a second-order consequence founders underestimate. Advance tax defaults show up in Form 26AS and in the Annual Information Statement, and the pattern of a company with rising turnover paying zero advance tax is a routine CASS selection parameter for scrutiny under Section 143(2). Interest is the visible cost; an assessment is the expensive one.

Finally, the interest and the underlying provision must be reflected correctly in the accounts. Under Schedule III of the Companies Act, 2013, current tax provision and advance tax paid are presented separately, and the statutory auditor will report the movement. A company that has under-provided will find the shortfall surfacing in the tax audit report in Form 3CD at the clauses dealing with amounts debited to the P&L that are inadmissible under Section 40 — which is exactly the sort of disclosure that invites an Assessing Officer's attention.

Step-by-step: what to do

• Build a rolling forecast, not a year-end estimate. By 5 June, close your April and May books and annualise. Advance tax is payable on estimated income; the law does not require perfect foresight, only a bona fide estimate. Document the basis of the estimate in the board file — it is your defence if the estimate later proves low.
• Compute total tax under the correct regime. If you have filed Form 10-IC and opted into Section 115BAA, use 25.168% effective. If you are still on the old regime, use 30% base plus surcharge plus cess, and separately check whether Minimum Alternate Tax under Section 115JB produces a higher figure. MAT liability is also payable in advance tax instalments — a company with large book profits but low taxable income is not exempt.
• Apply the cumulative percentages under Section 211 — 15%, 45%, 75%, 100% — and set calendar reminders for 15 June, 15 September, 15 December and 15 March. Where the due date falls on a Sunday or bank holiday, the CBDT has consistently extended to the next working day, but do not plan around it.
• Pay through the e-Pay Tax facility on the income tax portal using Challan ITNS-280, selecting minor head 100 (Advance Tax) and the correct assessment year. Selecting minor head 300 (Self-Assessment Tax) by mistake is the single most common challan error — the payment will not be credited against the instalment, and 234C interest accrues as though nothing was paid. Correcting a challan afterwards requires an application to the Assessing Officer.
• Reconcile each challan against Form 26AS within 10 days of payment. A challan that has not appeared in 26AS has not reached your PAN.
• Re-estimate at each instalment date. If Q2 revenue has doubled, the September instalment must be 45% of the revised total, not 45% of the June estimate. Section 234C compares actual payment against tax on the finally assessed income — an outdated estimate is no defence.
• True up in March. Before 15 March, compute the full year's expected liability including any TDS credit available, and pay the balance so that cumulative advance tax is at least 100%. Even if you have missed earlier instalments, clearing 90% before 31 March eliminates Section 234B, which is usually the larger of the two charges.
• Book the interest separately. Debit Section 234B/234C interest to a distinct ledger, not to the tax provision. The tax auditor needs it identified for the Form 3CD disallowance, and lumping it into "taxes" produces a reconciliation the auditor will raise as an observation.

FAQ

Our company made a loss last year. Do we still pay advance tax?
Only if estimated liability for the current year is ₹10,000 or more. Prior-year losses do not exempt you — if brought-forward losses are fully set off and this year is profitable, advance tax applies from the June instalment.

We incorporated in July. Is the June instalment still due?
No — the company did not exist on 15 June, so there is no default. But the September instalment at 45% of the year's tax is due in full, and the Section 234C shelter for a "newly established business" only covers income from that new business where tax is paid in the remaining instalments.

Does TDS deducted by our customers count towards advance tax?
Yes. Advance tax is computed on tax liability net of TDS and TCS credit available. If clients deduct 10% under Section 194J on most of your revenue, your advance tax obligation may be small or nil — but verify the credit actually appears in Form 26AS before relying on it.

Can we pay all four instalments in one go in June?
Yes, and it is permitted and safe. Paying ahead of schedule never attracts interest; Section 234C only penalises shortfall against the cumulative target at each date. The trade-off is working capital, and there is no interest paid to you on the excess until refund stage under Section 244A.

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