Reasonable cause and advance tax treatment govern late-filing penalty and require recomputation after credit is given.

Reasonable cause must be established on the record to excuse delay in filing a return; unsupported claims about audit completion or an accountant's illness were insufficient, so the late-filing penalty remained sustainable. A voluntary payment made during the financial year may still be treated as advance tax for penalty computation where the assessee's income otherwise attracted advance-tax liability under Chapter XVII-C, even if no notice under section 210 was issued. The penalty was therefore upheld in principle for belated filing, but the base had to be recomputed after giving credit for the voluntary advance-tax payment.

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Issues: (i) Whether the assessee had shown reasonable cause for the delay in filing the return so as to avoid penalty for late filing; (ii) Whether the sum of Rs. 10,000 paid voluntarily during the financial year could be treated as advance tax for computing penalty under the penalty provision.

Issue (i): Whether the assessee had shown reasonable cause for the delay in filing the return so as to avoid penalty for late filing.

Analysis: The return was filed long after the due date and was not accompanied by audited accounts. The record did not establish when the internal audit was completed, nor did it prove the alleged illness of the accountant or its duration. The return was required to be filed by the principal officer, and the claimed audit difficulties did not satisfactorily explain the continuing default.

Conclusion: The assessee did not prove reasonable cause for the delay, and the penalty was sustainable on this issue.

Issue (ii): Whether the sum of Rs. 10,000 paid voluntarily during the financial year could be treated as advance tax for computing penalty under the penalty provision.

Analysis: The payment was made during the financial year and the assessee's income brought it within the advance-tax provisions. Even though no notice under section 210 had been issued, the statutory scheme of Chapter XVII-C treated such a payment as advance tax where the liability to advance tax otherwise existed. The amount was therefore deductible in computing the penalty base.

Conclusion: The voluntary payment of Rs. 10,000 had to be treated as advance tax and given credit in recomputing the penalty.

Final Conclusion: The penalty was upheld in principle for belated filing, but the quantum had to be recomputed after giving credit for the advance-tax payment.

Ratio Decidendi: For penalty for late filing, reasonable cause must be proved on the record, and a voluntary payment made during the financial year can qualify as advance tax for penalty computation where the statutory conditions for advance tax liability are otherwise satisfied.

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