CORAA

Advance Tax & Section 234B/234C Working Paper — Instalment Shortfall Tracker

The four standard advance-tax instalment dates, with the shortfall (due minus paid) computed for each — the audit-file working paper that documents the conclusion. For the actual 234B/234C interest computation, use the dedicated calculator.

Free · CORAA original — SA-aligned
Updated 28 Jul 2026
Instalment schedule
15%/45%/75%/100% by 15 Jun/Sep/Dec/Mar
Sections
234B (year-end shortfall) · 234C (instalment shortfall)
Presumptive taxpayers
Single instalment by 15 March (44AD/44ADA)
Interest computation
Use the dedicated Advance Tax & 234B/234C Calculator
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Your firm — letterhead
Appears at the top of the document as the audit firm letterhead.
Used as the letterhead block.
Engagement details
The client and period this document is for.
What’s inside

An excerpt from the template.

ADVANCE TAX & SECTION 234B/234C WORKING PAPER

Assessee: ___ · PAN: ___ · Previous year ended: ___ · Assessment Year: ___

This working paper tracks instalment shortfalls only — it does not compute the Section 234B (shortfall in advance tax overall, tested at year-end against 90% of assessed tax) or Section 234C (instalment-wise shortfall interest, 1%/month for 3 months per instalment, 1 month for the March instalment) interest amounts themselves. Use the site's dedicated Advance Tax & 234B/234C Calculator for that computation, referencing the shortfall figures above as inputs.

Note: an assessee opting for presumptive taxation under Section 44AD/44ADA is required to pay the entire advance tax in a single instalment on or before 15 March — the four-instalment schedule above does not apply to that case.

↑ Excerpt only — the full template is what you download as Word
About this template

What you’re downloading, and when to use it.

This template follows the format published by the Institute of Chartered Accountants of India (ICAI) in the AASB Audit Working Paper Templates (June 2023), the authoritative reference for Indian statutory-audit documentation. Fill in your firm’s letterhead and the engagement details on the form above, click Download Word file, and you’ll get a fully formatted .docx ready to use.

Everything is generated in your browser and on a stateless API endpoint — no account, nothing stored on our servers. We’ll ask for a work email once before your first download so we can send you the file and the occasional relevant update; after that, downloads on this device are instant. Edit freely in Word, Google Docs or Pages before sending to your client.

Common questions

FAQs.

What is the difference between Section 234B and Section 234C interest?
Section 234C charges interest for shortfall at each of the four instalment due dates during the year, regardless of the final year-end position. Section 234B separately charges interest if advance tax actually paid by 31 March falls short of 90% of the assessed tax for the year — the two sections operate on different tests and can both apply to the same assessee in the same year.
Does this working paper compute the actual interest amount payable?
No — it computes only the instalment-wise shortfall (due minus paid) as the documentation trail. The interest computation itself (1% per month for three months per instalment under Section 234C, and on the year-end shortfall under Section 234B) is available on the site's dedicated Advance Tax & 234B/234C Calculator, which takes these shortfall figures as its starting input.
Is there any relief from Section 234C interest for shortfall due to unforeseen income?
Yes — Section 234C provides relief where the shortfall arises from capital gains, casual income (e.g. lottery winnings), or certain other specified income types not anticipated at the time of an earlier instalment, provided the tax on that income is paid in the immediately following instalment (or by 31 March if it arises after the December instalment). Document the nature and date of any such income relied upon for this relief.
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