Advance Tax Payment Dates 2026: Calculate & Pay Guide

The second advance tax instalment deadline is September 15. Miss it and you owe interest under Section 234C from that date forward — even if you pay the full amount by March 31. The calculation is automatic, the penalty applies regardless of intent, and appealing takes months you likely don't have.

Overview

Most self-employed professionals and business owners understand they need to pay advance tax. Where they go wrong is in the calculation step — specifically, estimating total income for a year that's only half done. Underestimate by more than 10%, and Section 234C interest applies. Overestimate significantly, and you've parked cash with the government at zero return. The second mistake happens at the payment stage: selecting the wrong assessment year on the Challan 280 form. Select FY 2024-25 when you mean AY 2026-27, and reconciling that payment during ITR filing becomes a multi-month ordeal involving your jurisdictional assessing officer.

Four Advance Tax Installment Dates for FY 2025-26

You pay advance tax in four instalments during the financial year. For FY 2025-26 (Assessment Year 2026-27), the schedule is fixed:

June 15, 2025: 15% of your estimated annual tax liability must be paid by this date. This is the trickiest instalment — you're projecting income for twelve months with only two months of actual data. Freelancers and consultants with lumpy project income often underpay here.

September 15, 2025: cumulative 45% of your total liability must be paid. Subtract what you paid in June. If your June payment was ₹60,000 and your total liability estimate is ₹4 lakh, you owe ₹1.2 lakh by September 15 (45% of ₹4 lakh minus the ₹60,000 already paid).

December 15, 2025: cumulative 75% due. By now, you have nine months of income data. Revise your estimate if your actual earnings are tracking 15% or more above or below your original projection. Paying based on stale assumptions here is where Section 234C interest accumulates fastest.

March 15, 2026: the final 100%. Pay the remaining 25% by this date. This is not March 31 — the financial year-end. The deadline is two weeks earlier. March 15 falls on a Sunday in 2026, so the effective due date is March 16.

Senior citizens (60 years or older) who have no business income are exempt from advance tax entirely. Salaried individuals are also exempt if their employer deducts TDS and they have no other substantial income.

Who Must Pay Advance Tax

You must pay advance tax if your total tax liability for the year exceeds ₹10,000 after accounting for TDS. This applies whether you're self-employed, a freelancer, a business owner, or a salaried person with significant income from other sources.

A Bangalore-based graphic designer earned ₹8 lakh in FY 2024-25 from clients. Total tax liability after deductions: ₹62,500. Clients deducted ₹15,000 as TDS under Section 194J. Net liability: ₹47,500. The ₹10,000 threshold is exceeded, so advance tax applies for FY 2025-26.

Salaried employees typically don't pay advance tax because their employer deducts TDS monthly. The exception: if you have rental income, capital gains, freelance income, or interest income that pushes your total liability above ₹10,000 after employer TDS, you must pay the shortfall as advance tax.

Business owners under presumptive taxation (Section 44AD or 44ADA) pay the entire advance tax liability in one instalment by March 15. The quarterly schedule does not apply to them.

How to Calculate Your Advance Tax Liability

Start with your estimated gross income for FY 2025-26. Include all heads: salary, business/professional income, rental income, capital gains, and other sources.

Subtract deductions you're eligible for: ₹50,000 under Section 80C (PPF, ELSS, life insurance), ₹25,000 or ₹50,000 under Section 80D (health insurance), ₹50,000 under NPS (80CCD(1B)), home loan interest under 24(b), and any other applicable deductions. This gives you your taxable income.

Apply the income tax slab rates for AY 2026-27. As of now, FY 2025-26 rates are not yet notified in the Union Budget 2025 — use FY 2024-25 rates as a baseline and adjust once the budget is announced (expected February 2025). For the old regime, slabs are ₹0–₹2.5 lakh (nil), ₹2.5–₹5 lakh (5%), ₹5–₹10 lakh (20%), above ₹10 lakh (30%). For the new regime, slabs differ: ₹0–₹3 lakh (nil), ₹3–₹6 lakh (5%), ₹6–₹9 lakh (10%), ₹9–₹12 lakh (15%), ₹12–₹15 lakh (20%), above ₹15 lakh (30%).

Add 4% health and education cess to your calculated tax. If your taxable income exceeds ₹50 lakh, add surcharge: 10% on income between ₹50 lakh and ₹1 crore, 15% between ₹1 crore and ₹2 crore, and so on.

Subtract any TDS already deducted (from clients, banks, or employers). The remaining amount is your advance tax liability. Divide this across the four instalments: 15%, 30% (45% cumulative minus 15% already paid), 30% (75% cumulative minus 45%), and 25%.

A Mumbai-based consultant expects to earn ₹12 lakh in FY 2025-26. After ₹1.5 lakh in 80C and 80D deductions, taxable income is ₹10.5 lakh under the old regime. Tax: ₹1,12,500 plus 4% cess equals ₹1,17,000. Clients will deduct ₹1.2 lakh as TDS. Net advance tax due: zero. But if the same consultant opts for the new regime (no deductions), taxable income is ₹12 lakh. Tax: ₹1,35,000 plus cess equals ₹1,40,400. After ₹1.2 lakh TDS, ₹20,400 remains due. Since this exceeds ₹10,000, advance tax applies.

Estimating income nine months in advance is inherently imprecise for non-salaried taxpayers. If your actual income at year-end is within 10% of your estimate, you're safe. Beyond that, interest applies.

Payment Methods and Online Process

Log in to the Income Tax e-filing portal (incometax.gov.in) and navigate to e-Pay Tax. Select Challan 280 (for advance tax, self-assessment tax, or regular assessment tax).

Choose the correct tax applicable: select (0021) Income Tax (Other than Companies). For Assessment Year, select 2026-27 — this is critical. Selecting the wrong AY creates reconciliation problems during ITR filing that can delay refunds by six months.

Enter the advance tax amount for the instalment you're paying. Select your payment mode: net banking, debit card, or NEFT/RTGS. UPI is not enabled for advance tax payments exceeding ₹1 lakh on most bank portals.

After payment, download and save the challan counterfoil. It contains your BSR code, challan serial number, and payment date — you'll need these when filing your ITR. The payment reflects in your Form 26AS within 7–10 days.

If you miss a payment deadline, you can still pay late. The tax is accepted, but interest accrues from the missed due date. Pay through the same Challan 280 process; the system does not distinguish between timely and late payments at the point of transaction.

Interest and Penalties for Non-Payment

Section 234B applies if you fail to pay at least 90% of your total assessed tax liability by March 31. Interest is 1% per month (simple interest, not compounded) on the shortfall, charged from April 1 until the date you file your return or pay the tax, whichever is earlier. If your total liability was ₹2 lakh and you paid only ₹1.5 lakh by March 31, you owe 1% per month on ₹50,000 from April onward.

Section 234C applies if you underpay or miss any of the four quarterly instalments. Interest is 1% per month on the shortfall for each instalment period. If you were due to pay ₹45,000 by September 15 (45% of total liability) but paid only ₹30,000, you owe 1% per month on ₹15,000 from September 16 until March 15. Then a fresh calculation starts for the December instalment shortfall, if any.

234C interest is calculated separately for each instalment. Missing the June deadline but catching up in September does not erase the June shortfall interest — it continues accruing until March 15.

There is no penalty under Section 234A for advance tax shortfalls, only interest under 234B and 234C. However, if you don't file your ITR by the due date (July 31 for non-audit cases), Section 234A adds 1% per month on the unpaid tax, up to the date you file.

A Pune-based freelancer with ₹3.5 lakh total liability paid nothing until March 15, then paid the full amount. 234C interest applies on 15% from June 16 to March 15 (9 months), on 30% from September 16 to March 15 (6 months), and on 30% from December 16 to March 15 (3 months). Total interest: approximately ₹15,750. If they also missed 90% by March 31, 234B adds another layer from April 1 onward.

When to Consult a Tax Accountant

Your income fluctuates by more than 30% quarter to quarter. Calculating advance tax on a moving target without cushion or shortfall requires someone who models this daily. A Chennai-based event photographer earned ₹2 lakh in Q1, ₹9 lakh in Q2 (wedding season), and expects ₹3 lakh in Q3-Q4. Paying 15% of annual liability in June based on Q1 data alone leads to severe underpayment. A tax accountant recalibrates estimates quarterly and advises provisional payments.

You're switching from old to new tax regime mid-year, or you have income from capital gains, foreign remittances, or partnership firm allocations. These require adjusted calculations for TDS credits and tax rates that differ from salary or business income.

You missed one or more instalment deadlines and need a realistic picture of accrued interest before filing. Calculating 234C interest manually across multiple shortfalls is error-prone. Most DIY filers either overpay out of caution or underpay and face demands later.

You're under a tax audit (turnover above ₹1 crore for business, ₹50 lakh for professionals). Advance tax compliance is scrutinised during audit — shortfalls trigger queries. Paying correctly from June onward is simpler than explaining gaps in September.

Tax accountants on Selyst specialise in advance tax planning for freelancers, consultants, and small business owners. Post your requirement with your income structure and filing history. You'll receive quotes from up to five Pros, most of whom offer quarterly review packages that include advance tax calculation, payment guidance, and ITR filing. Typical pricing in metros: ₹3,000–₹6,000 for a quarterly package, depending on complexity.

Common Mistakes to Avoid

A Delhi-based consultant estimated ₹10 lakh income in June, paid instalments based on that figure, and earned ₹14 lakh by March. Total tax liability: ₹1.96 lakh. Amount paid: ₹1.4 lakh. Shortfall: ₹56,000. The ITR was filed on time, but 234B interest of ₹5,600 (10 months at 1%) was levied. The mistake was not revising the estimate in December when Q3 income data was available.

Paying advance tax under the wrong assessment year is unrecoverable without jurisdictional officer intervention. A Hyderabad freelancer selected AY 2025-26 on the March 2026 challan instead of AY 2026-27. The payment didn't reflect in their 26AS for FY 2025-26. Rectifying this required filing a grievance, uploading challan proof, and waiting 90 days. The interest clock kept running.

Assuming salaried income exempts you entirely from advance tax. A Kolkata IT professional had ₹18 lakh salary (TDS deducted) and ₹6 lakh rental income (no TDS). Employer TDS covered salary tax. Rental income added ₹1.2 lakh in tax liability — all of it due as advance tax. They paid nothing until March 31, assuming year-end TDS reconciliation would suffice. 234B and 234C interest totalled ₹18,000.

FAQ

When is the first advance tax payment due for FY 2025-26? June 15, 2025. You must pay 15% of your estimated annual tax liability by this date. If your estimated total tax is ₹2 lakh, ₹30,000 is due in June.

What happens if I miss the September 15 advance tax deadline? Section 234C interest at 1% per month applies on the unpaid amount from September 16 until March 15, 2026. Paying late does not waive the interest — it accrues automatically and is added to your tax demand when you file your ITR.

Can I revise my advance tax estimate mid-year? Yes. If your actual income by December is tracking significantly higher or lower than your June estimate, recalculate your liability and adjust the December and March payments accordingly. Revision prevents underpayment interest or unnecessary cash lock-up.

Do senior citizens need to pay advance tax? Not if they're 60 or older and have no business or professional income. If a senior citizen earns only pension, interest, and rental income, they're exempt. If they run a business or consultancy, advance tax applies normally.

How do I know if my advance tax payment was successful? Check Form 26AS on the Income Tax portal 7–10 days after payment. The challan details (BSR code, serial number, payment date, and amount) should appear under the advance tax section. If it doesn't reflect within two weeks, contact your bank or file a grievance on the IT portal.

What is the penalty for not paying advance tax at all? There is no separate penalty, but interest under Sections 234B and 234C applies. If your total liability exceeds ₹10,000 and you pay nothing until you file your return, you'll owe 1% per month on the shortfall from the missed due dates. For a ₹2 lakh liability paid only in July 2026, interest can exceed ₹25,000.

Get Expert Help with Advance Tax Compliance

Post your advance tax calculation and filing requirement on Selyst. You'll receive quotes from up to five tax accountants in your city within hours. Compare profiles, pricing, and client reviews, then contact the Pro who fits your needs. Most accountants offer quarterly packages that include advance tax calculation, payment tracking, and ITR filing. Find a tax accountant on Selyst now.