Fact-check notes
Last fact-checked: 2026-05-26
Transition rule: AY 2026-27 covers FY 2025-26 and continues under the Income-tax Act, 1961. The Income-tax Act 2025 Tax Year terminology applies for income earned from 1 April 2026 onward.
This page is written from official portal guidance and the supplied Batch 11 brief. Any future-dated form, rule or portal workflow should be verified in the active utility before filing or advising a client.
What this covers
Advance tax interest depends on estimated liability, due-date instalment percentage and timing. Recalculate before the next instalment and pay with the correct challan year.
- June 15 instalment generally targets 15% cumulative advance tax.
- September 15 is the next major catch-up date for cumulative tax.
- Capital gains and windfall timing can affect interest calculation.
Who this is for
- F&O trader.
- Freelancer with low TDS.
- Investor with large gains.
- Company or LLP CFO.
Documents and data to verify
- Estimated annual income.
- TDS details.
- Advance tax challans.
- Capital gains statement.
Common mistakes to avoid
- Selecting self-assessment tax instead of advance tax.
- Wrong assessment year.
- Ignoring TDS already available.
- Not revising estimates after new income.
How to proceed
- Confirm the applicable year, taxpayer type, state, registration status and portal form before acting.
- Reconcile the official portal data with books, bank statements, certificates, invoices and notices.
- Prepare a written computation, filing note, document checklist or response with assumptions clearly stated.
- Download acknowledgements, challans, workings and evidence after filing or submission.
FAQs
Can WorkIndex help with this?
Yes. Post the facts and documents; relevant experts can quote for filing, advisory, reconciliation, registration, appeal support or ongoing compliance.
Is the page a substitute for professional advice?
No. Use it to prepare. A professional should check the current portal utility, official source and records before filing or taking a tax position.
What should I mention while posting?
Mention the year, state, form, deadline, amount involved, documents available, portal status and whether you need filing, correction, opinion or representation.