Extra depreciation for multiple shift operations requires proof of actual shifts and is capped proportionally.
Extra allowance for double or triple shift is additional to normal depreciation and is admissible only if the assessee proves actual double/triple shift operation; assets marked "N.E.S.A." are excluded. The allowance is a proportion of normal depreciation (up to 50% for double shift, up to 100% for triple shift) and is calculated by multiplying the specified normal rate by the days of double/triple shift work divided by the normal number of working days in the previous year.

Estate duty filing deadline: controllers must promptly decide extension requests to preserve interest revenue and compliance.
Under Section 53(3) of the Estate Duty Act every accountable person must file a prescribed account within six months; the Controller may grant a extension of time on terms that may include payment of interest. The Board warns that failure of Assistant Controllers to dispose of extension applications promptly can prevent charging interest and lead to revenue loss, and directs prompt action to secure conditional extensions and associated interest obligations.

Penalty under wealth tax: officers must levy when applicable, or record detailed reasons for non-levy.
Directs prompt levy of penalty u/s.18(1)(a) by Wealth Tax Officers when conditions are met; if an officer decides not to levy the penalty despite the provision being attracted, the officer must record on the order sheet detailed reasons for non-levy. The same procedure must be applied to penalties under the General Tax Act, and supervisory action, including disciplinary measures, will follow lapses.

Prior approval requirement for appellate-order revisions mandates supervisory consent before effecting substantial tax or duty adjustments.
Income-tax Officers must obtain the prior approval of the Inspecting Assistant Commissioner before giving effect to revisions consequent on appellate orders when the tax effect exceeds Rs. 1 lakh; similarly, Assistant Controllers in Estate Duty must secure Deputy Controller approval for appellate-order adjustments reducing principal value or involving Estate Duty exceeding Rs. 1 lakh.

Penalty for failure to pay self-assessed tax should be initiated promptly to ensure deterrence and prompt collection.
The Board instructs that penalty proceedings under section 140A(3) for failure to pay self-assessed tax need not be initiated during assessment proceedings but should be commenced promptly, preferably within one month after the due date, because delays defeat the deterrent purpose; any cases initiated or completed after assessment should be expeditiously closed.

Firm membership restriction: firms cannot be registered as company members except where statutory licensing applies, and corrective action may follow.
A firm is not a person and therefore cannot be registered as a company member except where a statutory licensing exemption applies; companies with firms recorded as shareholders must be directed to rectify the irregularity within a specified time and, if they fail to do so after warning, may be subjected to enforcement under the relevant statutory provision allowing corrective action.

Export profits rebate permitted for both registered firms and their partners; apply in pending assessments and appeals.
The Board directs that export-profits rebate may be allowed both to a registered firm and to its partners, following the High Court ratio, and supersedes an earlier Board letter that restricted allowance to either the firm or the partners. This position is to be applied in pending assessments and conceded in appeals and revision petitions against completed assessments under the Finance Acts.

Extension of time for rectification allows CBDT authorisation to pursue penalties arising from annulled assessments.
Authorisation is given for administrative rectification to pursue penalty demands founded on assessments cancelled or annulled, permitting action under the rectification provisions beyond the ordinary time-limit where the Board issues specific authorisation; the document also corrects an internal circular reference by substituting one Board circular number for another.

Limit on deductible employer perquisites restricts employer deductions for employee benefits; contractual bonuses treated as salary, gratuitous payments as perquisites.
Expenditure by an employer that provides benefits, amenities or perquisites to employees is deductible only up to one fifth of the salary payable to the employee; "salary" for this purpose follows rule 2(h) of Part A of the Fourth Schedule and includes dearness allowance only if employment terms so provide, excluding other allowances and perquisites. Reimbursements and in kind provisions such as medical expenses, utilities, domestic servants, club bills, rent free accommodation and motorcar use qualify as perquisites subject to the one fifth ceiling. Bonus and commission are classified by reference to their contractual or gratuitous character.

Appeal effects compliance: ensure favourable appellate orders are recorded and tax recovery initiated, with mandatory checks and reports.
Inspecting Assistant Commissioners must carry out a 100% check of favourable appellate orders received after 1 4 1969 to ensure appeal effects are entered in the Demand & Collection Register and files and that tax recovery is initiated; failures must be reported to the Commissioner of Income tax for action, Commissioners/Additional Commissioners must coordinate checks and report results to the Board, and I.T.O. (Judicial) must send quarterly lists of successful departmental appeals to Inspecting Assistant Commissioners for monitoring.

Prior approval for significant assessment revisions required before giving effect to appellate orders in income, wealth and gift taxation.
Revision of assessments following appellate orders that reduce tax liability or decrease net wealth/amount of gift beyond a prescribed monetary limit must not be given effect to without the prior approval of the Inspecting Assistant Commissioner; this requirement applies to income-tax, wealth-tax and gift-tax cases and is to be enforced through inspections and supervisory verification to prevent recurring irregularities.

Constitution of Special Bench to resolve conflicting appellate decisions enables authoritative guidance and permits expedited precedent-setting reference.
Request the President of the Income-tax Appellate Tribunal to constitute a Special Bench to decide selected appeals identified by Commissioners where different Tribunal Benches have given varying decisions, thereby producing an authoritative decision to guide other Benches and lower authorities, with the prospect thereafter of presenting a test case for expedited higher-court consideration if required.

Deductibility of legal expenses: litigation costs in tax proceedings are allowable as business deductions when justified by commercial expediency.
Legal and accountancy expenses incurred in connection with proceedings before income-tax authorities, including appeals up to the Supreme Court, are allowable as business deductions under sections 10(2)(xv) and 37(1) of the Income-tax Act when such expenditure is incidental to the trade and justified by commercial expediency to protect the assessee from excessive tax claims.

Dividend tax relief hinging on company certificates may be allowed via late rectification applications if properly supported.
Shareholder entitlement to dividend tax relief from tax-holiday profits depends on production of company certificates indicating the tax-free percentage of profits. The Board directed that rectification applications supported by such certificates shall be admitted and decided on merits even if filed after the statutory time limit, and that previously rejected cases re-filed be treated similarly; pending appeals or references on the issue may be withdrawn.

Estate duty postponement discretionary; extensions require interest and terms, and officers must press for recovery promptly.
Payment of estate duty may be postponed at the Controller's discretion and any extension of time is subject to conditions, including the charge of interest and other terms imposed by the Controller; absent an extension there is no automatic interest on delayed payments. Assistant Controllers must press for recovery promptly after the due date so accountable persons either pay or seek extension on the Controller's terms, and Deputy Controllers should monitor compliance.

Basic exemption misapplication prompts instruction to verify wealth tax returns and prevent incorrect exemptions and double allowances.
Misapplication of the basic exemption under the Wealth Tax Act for assessment years up to 1971-72 produced incorrect wealth-tax calculations through errors such as adopting incorrect exemption limits, allowing the exemption twice, or applying HUF exemption limits to Individuals, causing loss of revenue; the Board directs Commissioners to ensure assessing officers exercise due care in allowing deductions and verifying return data so the prescribed basic exemption is correctly adopted.

Reappointment of retiring auditor requires an AGM resolution; failure to appoint allows government appointment power.
A retiring auditor who is qualified and willing is not automatically or deemed reappointed; the company must pass a resolution at the annual general meeting to reappoint. A resolution appointing a person other than the retiring auditor requires special notice, and non compliance with that requirement invalidates the resolution. Where no auditor is validly appointed or reappointed at the meeting, the statutory power for government appointment of auditors becomes available to fill the vacancy.

Extension of time for wealth-tax returns for agricultural landowners allows delayed filing to permit proper valuation by qualified valuers.
Extension of time permits persons owning agricultural lands and related assets to file wealth-tax returns for assessment years 1970-71 and 1971-72 up to the end of February 1972 to allow proper valuation by qualified valuers; Commissioners are instructed to secure regional-language publicity of the Board's press handout and to notify all Wealth-tax Officers, with repeat releases if publicity proves inadequate.

Deterrent sentencing: prosecutors must press for harsher penalties and appeal lenient sentences in tax concealment cases.
The Board notes causes of lenient sentences in Income-tax prosecutions and directs prosecuting counsels to seek appellate review where courts impose lenient punishments, to stress the premeditated nature and societal harm of tax offences, to treat monetary penalties as distinct from prescribed punishments, to argue that imprisonment till rising of court is not rigorous imprisonment, and to request committal to Sessions where magistrates lack power to impose adequate fines or sentences.

Time limit for tax assessments requires determination of tax within statutory period, otherwise the assessment may be void.
The Board directs that under Section 153 the assessment process must include both passing the assessment order and determining the amount of tax payable within the statutory limitation; failure to determine tax or to issue demand within the period may render the assessment barred by limitation. Income-tax Officers must complete tax calculations and determine tax due within the prescribed time and take immediate action to implement this instruction.