Cash to Accrual Accounting: Triggers, Tax Rules and the Audit Test
Indian law doesn't leave the cash-vs-accrual choice open-ended forever — incorporation, audit thresholds, Ind AS adoption and bank credit each trigger a mandatory switch to accrual accounting. This piece maps every trigger under Section 145 ITA 1961, Section 128 Companies Act 2013 and ICDS I, and lays out the eight-step process to make the transition audit-proof.
CA Harun Raaj
Chartered Accountant · Harun Raaj & Associates
Legal basis: Section 145, Income-tax Act 1961 (Section 276, Income-tax Act 2025, effective Tax Year 2026-27) / Section 128, Companies Act 2013 / ICDS I notified vide Notification No. S.O. 3079(E) dated 29 September 2016 under Section 145(2), effective AY 2017-18 onward — Effective: ongoing. Source: CBDT/MCA notifications. Last reviewed by CA Harun Raaj: September 2026.
A Mumbai software startup incorporated in April 2023 kept its books on a cash basis. When it applied for a ₹75 lakh working capital line in 2025, the bank rejected the financials: Section 128 of the Companies Act 2013 had required accrual accounting from Day 1 of incorporation. The retroactive switch cost the company its bank window — and it was preventable, because the law is clear about exactly when each type of business must switch.
Key point: Section 128 of the Companies Act 2013 requires every company to maintain accrual-basis books from the date of incorporation, with no turnover floor or grace period.
What the Law Actually Says
Section 145, ITA 1961 and Section 276, ITA 2025
Income chargeable under "Profits and gains of business or profession" or "Income from other sources" must be computed under either the cash system or the mercantile (accrual) system of accounting regularly employed by the assessee (Section 145(1), Income-tax Act 1961; Section 276(1), Income-tax Act 2025, effective from Tax Year 2026-27, i.e. 1 April 2026 onward).
The critical phrase is "regularly employed." The law expects consistency — once a method is adopted, it is expected to continue across years. A mid-year switch, or switching annually to manage tax liability, invites the Assessing Officer to invoke best-judgment assessment under Section 144 of ITA 1961 (Section 271 under ITA 2025) and recompute income independently.
Courts and ITAT benches have applied a two-condition test for a valid accounting method change:
- Bona fide — driven by a genuine business reason such as a regulatory requirement, corporate conversion, Ind AS adoption, or institutional due diligence — not tax minimisation.
- Not prejudicial to revenue interests — the transition year must not let income escape tax or allow a deduction to be claimed twice.
A change meeting both conditions will not attract penalty under Section 271(1)(c) of ITA 1961 (or its ITA 2025 equivalent).
ICDS I — Accounting Policies
The Central Government notified 10 Income Computation and Disclosure Standards vide Notification No. S.O. 3079(E) dated 29 September 2016 under Section 145(2), applicable from AY 2017-18 (PY 2016-17) onward. ICDS I mandates that accounting policies be selected and applied consistently. A change — including a change in accounting method — is permissible only where it is required by statute or results in a more appropriate presentation of the financial statements. Where a change is made, ICDS I requires disclosure of the change and its reason, and quantification of the financial effect. This flows into Clause 13(f) of Form 3CD for taxpayers under tax audit.
Section 128, Companies Act 2013
Section 128(1) is unambiguous: every company must maintain its books on the accrual basis and the double-entry system, with no turnover threshold. A one-day-old private limited company with ₹1 in share capital must maintain accrual-basis books. Schedule III further requires all financial statements to be prepared on the accrual basis under applicable accounting standards. A company presenting cash-basis financial statements cannot receive a clean statutory audit report under Section 143 or pass the "true and fair view" test.
Who Must Switch — the Trigger Map
Company incorporation, illustrated: Priya ran a consultancy as a sole proprietor from 2019 to 2023 on the cash basis, declaring income only when clients paid. In June 2023 she incorporated a private limited company and transferred the business. On the incorporation date, three clients owed her ₹8.2 lakh for completed work. That ₹8.2 lakh had to appear as a trade receivable in the company's opening balance sheet — even though Priya never recognised it as income under the proprietorship's cash-basis books. When those receivables are collected in FY 2023-24, the income is taxable in the company's hands.
An LLP is not governed by the Companies Act, so Section 128 does not apply — but once turnover exceeds ₹40 lakh or contribution exceeds ₹25 lakh, a statutory audit under Section 35 of the LLP Act 2008 becomes mandatory, and lenders and auditors will expect accrual-basis accounts. For proprietors and partnerships, Section 44AB pushes the same outcome once turnover crosses ₹1 crore (business) or ₹50 lakh (profession) — Clause 13(f) of Form 3CD requires disclosure of any accounting method change and its quantified effect. Ind AS 1 presupposes accrual accounting; Ind AS 115 (performance-obligation-based revenue recognition) and Ind AS 116 (on-balance-sheet lease accounting) can materially change reported income once the mandatory Ind AS threshold is crossed. Banks extending a CC limit, term loan or working capital facility require Schedule III-compliant accrual accounts — debtor ageing and accrued liabilities are invisible in a cash-basis book.
Step-by-Step: How to Make the Switch Properly
- Identify the trigger date precisely — incorporation date for companies, the year the audit threshold is crossed for LLPs and tax-audit assessees, or the MCA-notified transition date for Ind AS.
- Take a complete accrual inventory as on the switch date — outstanding debtors, creditors, advances received but not earned, prepaid expenses, accrued but unbilled income, and outstanding expenses incurred but not paid.
- Recognise opening adjustments in Year 1. The transition year typically shows higher income (debtors and accrued income now included) and higher expenses (creditors and provisions now recognised). Document a detailed transition workings note.
- Guard against double-taxation and double-deduction. Income recognised as cash in Year 0 must not be recognised again on accrual in Year 1 for the same item; an advance deducted in Year 0 must not be deducted again in Year 1. A direct tax advisory review of the transition workings note prevents disputes later.
- Disclose the change in Clause 13, Form 3CD if tax audit applies — nature of change, reason, and quantified financial effect. Under ICDS I, non-disclosure of an accounting policy change is itself a compliance failure.
- Switch the accounting system from the first day of the new financial year. Mixing periods — part-year cash, part-year accrual — compounds reconciliation errors. A bookkeeping and accounting team should set up transition journals and the chart of accounts before the year begins.
- Engage the auditor before year-end, not after. The statutory auditor under Section 143, or the tax auditor under Section 44AB, reviews completeness of the opening balance, Year-1-vs-Year-0 consistency, ICDS I disclosure, and Schedule III format compliance. Bringing in your audit and assurance firm 3–4 months before year-end allows time to correct classification errors.
- For Ind AS transitions, apply Ind AS 101 — first-time adoption adjustments are recognised directly in equity, not the profit and loss account. A specialist Ind AS adoption advisory engagement before the transition date is essential.
I'm CA Harun Raaj, Visakhapatnam. If your business is approaching an incorporation, audit, Ind AS, or lending trigger, write in before the transition year closes — the opening balance sheet is far easier to get right the first time than to correct afterward.
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See Also
Frequently Asked Questions
Can a small sole proprietor with ₹30 lakh turnover stay on the cash basis?
Yes — Section 145(1) of ITA 1961 (Section 276(1) of ITA 2025 from Tax Year 2026-27) permits the cash system with no minimum turnover floor, so there is no obligation to switch until a statutory trigger applies. If turnover is approaching the ₹1 crore tax audit threshold under Section 44AB, switching proactively in a clean year is less disruptive than being forced into it mid-audit.
We converted from a proprietorship to a private limited company last month. Must we restate our proprietorship accounts?
No — the proprietorship stays on its own cash basis. What Section 128(1) of the Companies Act 2013 requires is an opening accrual-basis balance sheet for the company as on its incorporation date, recognising all receivables, liabilities and prepaid items. The company's first statutory audit under Section 143 will verify this opening balance.
My Assessing Officer rejected the outstanding creditor deduction I claimed in the transition year. Was the rejection correct?
Likely not, provided the two-condition test is met. If you were on the cash basis in Year 0 and switched to accrual in Year 1, outstanding creditors at the switch date must be claimed in Year 1 — provided the same amounts were not already claimed in Year 0. A documented transition workings note is the primary evidence and supports an appeal to CIT(A) on the two-condition test and ICDS I grounds.
Does switching from cash to accrual affect the presumptive taxation scheme under Section 44AD?
Yes, indirectly. Section 44AD deems income at 8% or 6% of turnover for eligible businesses up to ₹3 crore (₹4 crore for digital transactions), so the accounting method is largely irrelevant while you remain in the scheme. However, once you opt out of Section 44AD after having opted in, Section 44AB(e) mandates a tax audit for the next five consecutive assessment years if income exceeds the basic exemption limit, which in turn requires proper accrual books and Form 3CD compliance.
Do LLPs need accrual accounting like companies do under Section 128?
No — Section 128 of the Companies Act 2013 applies only to companies, not LLPs. An LLP stays exempt from mandatory accrual accounting unless its turnover exceeds ₹40 lakh or its contribution exceeds ₹25 lakh, at which point a statutory audit under Section 35 of the LLP Act 2008 becomes mandatory and lenders and auditors will expect accrual-basis financials.
Does ICDS I require disclosure every year, or only when the accounting method changes?
Only when a change is made. ICDS I, notified vide Notification No. S.O. 3079(E) dated 29 September 2016, requires disclosure of the change and its reason, plus quantification of the financial effect, solely in the year the accounting policy changes. Consistent use of the same method year after year does not trigger a Clause 13(f) disclosure in Form 3CD.
What happens if a company prepares cash-basis financial statements instead of accrual?
It cannot receive a clean statutory audit report under Section 143 of the Companies Act 2013. Cash-basis statements fail the "true and fair view" test and do not comply with Section 128(1)'s mandatory accrual and double-entry requirement, or with Schedule III's requirement that statements be prepared on the accrual basis under applicable accounting standards.
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