Just a moment...

Top
Help
×

By creating an account you can:

Logo TaxTMI
Call Us / Help / Feedback

Contact Us At :

E-mail: [email protected]

Call / WhatsApp at: +91 99117 96707

For more information, Check Contact Us

FAQs :

To know Frequently Asked Questions, Check FAQs

Most Asked Video Tutorials :

For more tutorials, Check Video Tutorials

Submit Feedback/Suggestion :

Email :
Please provide your email address so we can follow up on your feedback.
Category :
Description :
Min 15 characters0/2000
Make Most of Text Search
  1. Checkout this video tutorial: How to search effectively on TaxTMI.
  2. Put words in double quotes for exact word search, eg: "income tax"
  3. Avoid noise words such as : 'and, of, the, a'
  4. Sort by Relevance to get the most relevant document.
  5. Press Enter to add multiple terms/multiple phrases, and then click on Search to Search.
  6. Text Search
  7. The system will try to fetch results that contains ALL your words.
  8. Once you add keywords, you'll see a new 'Search In' filter that makes your results even more precise.
  9. Text Search
Add to...
You have not created any category. Kindly create one to bookmark this item!
Create New Category
Hide
Title :
Description :
❮❮ Hide
Default View
Expand ❯❯
Close ✕
🔎 TMI Notes - Adv. Search
TEXT SEARCH:

Press 'Enter' to add multiple search terms. Rules for Better Search

Search In:
Main Text + AI Text
  • Main Text
  • Main Text + AI Text
  • AI Text
Law:
---- All Laws----
  • ---- All Laws----
  • Benami Property
  • Bill
  • Central Excise
  • Companies Law
  • Customs
  • DGFT
  • FEMA
  • GST
  • GST - States
  • IBC
  • Income Tax
  • Indian Laws
  • Money Laundering
  • SEBI
  • SEZ
  • Service Tax
  • VAT / Sales Tax
Types:
---- All Types ----
  • ---- All Types ----
  • Act Rules
  • Case Laws
  • Circulars
  • Manuals
  • News
  • Notifications
Sort By: ?
In Sort By 'Default', exact matches for text search are shown at the top, followed by the remaining results in their regular order.
RelevanceDefaultDate
    ManualsIncome Tax
    What is the taxability of opening balance as on 1st day of April 2016 of Foreign Currency Translatio...
    ManualsIncome Tax
    Since section 43A is applicable for a foreign currency liability in respect of an asset acquired fro...
    ManualsIncome Tax
    How to recognise the exchange difference In respect of transactions that are settled beyond the end ...
    ManualsIncome Tax
    How are foreign exchange differences to be recognized.
    ManualsIncome Tax
    What is the manner in which foreign currency transactions are to be recorded.
    ManualsIncome Tax
    What is the treatment of expenditure incurred on test runs.
    ManualsIncome Tax
    What is the value at which fixed assets are to be recorded as per ICDS V relating to tangible fixed ...
    ManualsIncome Tax
    If the taxpayer sells a security on the 30th day of April 2017. The interest payment dates are Decem...
    ManualsIncome Tax
    Does ICDS-IV apply to interest received by an assessee on compensation or on enhanced compensation.
    ManualsIncome Tax
    Whether ICDS is applicable to revenues which are liable to tax on gross basis like interest, royalty...
    ManualsIncome Tax
    The condition of reasonable certainty of ultimate collection is not laid down for taxation of intere...
    ManualsIncome Tax
    How revenue from leases and hire purchase transactions will be recognised.
    ManualsIncome Tax
    Since there is no specific scope exclusion for real estate developers and Build -Operate- Transfer (...
    ManualsIncome Tax
    Whether the costs incurred for securing the contract would have to be claimed in the year of incurre...
    ManualsIncome Tax
    What is the treatment of incidental income that arises from construction contract.
    ManualsIncome Tax
    Does proviso to section 36(1)(iii) apply on construction contract i.e. interest paid on capital borr...
    ManualsIncome Tax
    whether the recognition of retention money, receipt of which is contingent on the satisfaction of ce...
    ManualsIncome Tax
    What is the manner of recognizing contract revenue during the early stages of a contract.
    ManualsIncome Tax
    What is the manner of recognition of revenue and expenses from construction contracts under ICDS III...
    ManualsIncome Tax
    How to deal with a case where contract revenue is not recorded in the books of account, but offered ...
❯❯
MaximizeMaximizeMaximize
0 / 200
Expand Note
Add to Folder

No Folders have been created

    +

    Are you sure you want to delete "My most important" ?

    NOTE:

    Notes
    Showing Results for :
    Reset Filters
    Results Found:
    Show All SummariesHide All Summaries
    ManualsIncome Tax
    Show AI Summary
    Taxability of foreign currency translation reserve: opening FCTR to be included in income unless previously recognised, requiring professional judgment.
    The opening balance of the Foreign Currency Translation Reserve (FCTR) as on 1 April 2016 relating to exchange differences on monetary items for non integral foreign operations shall be recognised in the relevant previous year as income to the extent not previously included in income computation; the correctness of this recognition is debatable and requires appropriate professional judgment because conversion does not create real income and ICDS treatment may not apply to earlier years.
    ManualsIncome Tax
    Show AI Summary
    Foreign currency liabilities treatment: exchange differences on monetary items hit profit or loss; non monetary differences not taxable or deductible.
    Section 43A does not apply to foreign currency liabilities for purchase of assets in India; such liabilities are governed by ICDS VI. Per ICDS VI para 5(i), exchange differences on monetary items are recognised in the profit and loss account, whereas exchange differences on non monetary items are neither taxable nor deductible.
    ManualsIncome Tax
    Show AI Summary
    Exchange difference recognition requires periodic recognition until final settlement, treated as income or expense for monetary items.
    Exchange differences on monetary transactions settled after the end of the previous year must be recognised in each intervening period up to final settlement, with exchange gain or loss on settlement treated as income or expense, except for items relating to nonintegral foreign operations.
    ManualsIncome Tax
    Show AI Summary
    Foreign exchange differences: monetary item gains and losses recognised as income or expense, non-monetary conversion differences excluded.
    Exchange differences on monetary items (cash and assets or liabilities receivable or payable in fixed or determinate amounts of money) arising on settlement or on the last day of the financial year must be recognised as income or expense of that year. Exchange differences on non-monetary items arising on conversion at the last day of the year are not to be recorded as income or expense for that year.
    ManualsIncome Tax
    Show AI Summary
    Foreign currency transaction recording: use transaction-date exchange rate or a stable weekly/monthly average when fluctuations are insignificant.
    Under ICDS VI, a foreign currency transaction must be initially recorded in the reporting currency using the exchange rate on the transaction date; if rates do not fluctuate significantly from actuals, a weekly or monthly average rate may be used instead.
    ManualsIncome Tax
    Show AI Summary
    Capitalization of test-run and commissioning expenditure: pre-commercial costs capitalized, post-commercial costs treated as revenue excluding general overheads.
    Expenditure on start-up and commissioning, including test runs and experimental production, must be capitalized as part of the cost of the tangible fixed asset until commercial production begins; expenditure after commercial production is revenue expenditure. Administration and general overheads not relating to a specific tangible fixed asset are excluded from asset cost and treated as revenue expenditure.
    ManualsIncome Tax
    Show AI Summary
    Valuation of tangible fixed assets requires recording at actual cost including nonrecoverable taxes and directly attributable expenditures.
    Valuation of tangible fixed assets under ICDS V requires recording assets at actual cost, comprising purchase price, duties and taxes that are not recoverable, and other directly attributable expenditure necessary to bring the asset to its intended use; recoverable taxes are excluded.
    ManualsIncome Tax
    Show AI Summary
    Accrual basis interest recognition: interest taxed on accrual must be included when computing capital gain from subsequent sale.
    Where interest has been accounted as income on an accrual basis before the sale of a security, the amount already taxed as interest income on accrual basis shall be taken into account for computation of income arising from such sale.
    ManualsIncome Tax
    Show AI Summary
    Interest on compensation taxed as Income from Other Sources when received; accounting standard ICDS does not displace the statute.
    Interest received on compensation or enhanced compensation is taxable in the year of receipt and must be reported under Income from Other Sources, regardless of whether the assessee uses mercantile or cash accounting; where ICDS IV conflicts with the Act the statute prevails.
    ManualsIncome Tax
    Show AI Summary
    ICDS applicability to gross-basis incomes confirms ICDS governs computation of taxable interest, royalty and fees for technical services.
    ICDS IV (Revenue Recognition) applies to incomes taxed on a gross basis, including interest, royalty and fees for technical services payable to non-residents, and such receipts must be computed and recognized under ICDS principles for determining the amount chargeable to tax.
    ManualsIncome Tax
    Show AI Summary
    Accrual-based revenue recognition: interest and royalty must be recognised despite collection uncertainty; statutory provisions prevail.
    Interest is recognised on a time basis and royalty according to contractual terms; later non recovery may be claimed as a deduction under the amended deduction provisions, and applicable statutory provisions prevail over ICDS IV.
    ManualsIncome Tax
    Show AI Summary
    Revenue recognition for leases: lease treated as income not sale; lessor taxed on rent and entitled to depreciation.
    ICDS IV recognises revenue when risk and rewards transfer, so leases are not sales: lease rent is taxable income and the lessor may claim depreciation. Under hire purchase, both parties cannot claim depreciation on the same asset; substance-over-form principles indicate the owner giving the asset on hire should recognise sale while the hirer is entitled to depreciation.
    ManualsIncome Tax
    Show AI Summary
    Revenue recognition under ICDS IV applies to real estate developers and BOT operators absent a specific exclusion.
    In the absence of any specific ICDS notified for real estate developers, BOT projects and leases, the relevant provisions of the Income tax Act and applicable ICDS (including ICDS III and ICDS IV) apply to revenue recognition, income computation and disclosure for those transactions.
    ManualsIncome Tax
    Show AI Summary
    Work-in-progress treatment: costs to secure construction contracts must be capitalised and not deducted until related work is performed.
    Precontract costs to secure construction contracts must be treated as an asset and characterised as work-in-progress, representing amounts due from customers, and therefore should not be claimed as a deduction in the year of incurrence but carried forward and recognised when the related construction or installation work is performed.
    ManualsIncome Tax
    Show AI Summary
    Incidental income in construction contracts: deduct from contract costs; investment returns taxed separately under income provisions.
    Incidental incomes arising from construction contracts are not part of contract revenue and must be reduced from contract costs; examples include sale of surplus materials and disposal of plant and equipment. Income in the nature of interest, dividends and capital gains is excluded from incidental income and is taxed separately under applicable law.
    ManualsIncome Tax
    Show AI Summary
    Proviso to section 36(1)(iii) inapplicable to construction contracts; interest on contract borrowings is deductible for execution purposes.
    Proviso to section 36(1)(iii) does not apply to borrowings by contractors for executing construction contracts because such borrowings are not for acquisition of an asset; therefore interest on capital borrowed attributable to a construction contract is not barred by the proviso and is allowable as a deduction under ICDS III.
    ManualsIncome Tax
    Show AI Summary
    Retention money recognition: recognise as revenue only when reasonable certainty of ultimate collection exists under ICDS construction rules.
    Retention money within a construction contract is part of contract revenue and should be recognised as revenue on billing only when there is reasonable certainty of its ultimate collection, based on the contract's performance criteria and para 9 of ICDS on construction contracts.
    ManualsIncome Tax
    Show AI Summary
    Contract revenue recognition: recognize only costs incurred when outcome is not reliably estimable; early-stage limit applies.
    When the outcome of a construction contract cannot be estimated reliably, revenue is recognized only to the extent of costs incurred, subject to an early-stage completion limit specified in the Income Computation and Disclosure Standard on Construction Contracts.
    ManualsIncome Tax
    Show AI Summary
    Percentage of completion method recognizes construction contract revenue, expenses and profit by proportion of work completed.
    Recognition of revenue and expenses for construction contracts under ICDS III is governed by the percentage of completion method, whereby revenue, costs and profit are recognized by reference to the stage of completion of contract activity on the reporting date and reported in proportion to work completed.
    ManualsIncome Tax
    Show AI Summary
    Bad debt deduction available without book write off when previously taxed income becomes irrecoverable under the statutory proviso.
    If contract revenue was offered to tax under ICDS but not recorded in the books and later becomes irrecoverable, it cannot be written off in the absence of a book entry; instead, deduction may be claimed under the statutory proviso allowing bad debt deduction without book write off where the amount was taken into account in computing income in the previous year in which it became irrecoverable or an earlier year.

    TMI Notes

    Back

    All TMI Notes

    Showing Results for :
    Reset Filters
      No Records Found

      TMI Notes

      Back

      All TMI Notes

      whatsappJoin Channel
      Showing Results for : Reset Filters

      Evolving the Law of Search Assessments : Clause 292 of the Income Tax Bill, 2025 Vs. Section 158BA of the Income-tax Act, 1961

      16 June, 2025

      Contents
      Acts
      Rules & Regulations
      Summary
      Note

      Note

      -

      Bookmark

      Print

      Print

      Clause 292 Assessment of income pertaining to the block period.

      Income Tax Bill, 2025

      Introduction

      Clause 292 of the Income Tax Bill, 2025 introduces a special procedure for the assessment of income in cases involving a search or requisition, marking a significant evolution in the statutory approach to block assessments. This provision, forming part of Chapter B of the Bill, is designed to supersede the general assessment machinery of the Act in specific circumstances where search and seizure operations are conducted. The legislative history and operational context of Clause 292 are rooted in the experience with Section 158BA of the Income-tax Act, 1961, which has long governed the assessment of undisclosed income detected during search operations. With the proposed overhaul of the income tax legislation, Clause 292 seeks to modernize, clarify, and, in some respects, expand upon the existing legal framework.

      Section 158BA, as recently amended and currently in force, provides the foundation for block assessment in search cases, focusing on the assessment of "total undisclosed income" for a defined block period. The transition to Clause 292 in the 2025 Bill reflects both the lessons learned from decades of practical application and the policy imperatives of enhancing tax compliance, procedural clarity, and administrative efficiency in the handling of search cases.

      This commentary undertakes a detailed examination of Clause 292, elucidating its objectives, operational mechanics, and implications. It further offers a comprehensive comparative analysis with Section 158BA, highlighting both continuities and significant departures. The analysis is structured to provide legal practitioners, tax administrators, and policy analysts with a nuanced understanding of the evolving landscape of search assessments in Indian tax law.

      Objective and Purpose

      The primary objective of Clause 292 is to establish a comprehensive and exclusive procedure for the assessment or reassessment of income relating to the block period in cases where a search or requisition is conducted. The provision is designed to:

      • Ensure the expeditious and effective assessment of income unearthed during search operations.
      • Prevent the duplication of proceedings by abating ongoing assessments for the relevant period, thus avoiding conflicting or overlapping assessments.
      • Clarify the treatment of income discovered during search vis-`a-vis regular assessments, and ensure a distinct tax treatment for such income.
      • Provide for the revival of abated proceedings in the event of annulment of search assessment orders, thus safeguarding the interests of revenue and the taxpayer.
      • Lay down a clear mechanism for handling multiple or subsequent searches and the necessary extensions of time for assessment completion.

      The legislative intent is to streamline the process, reduce litigation, and reinforce the integrity of the tax system by ensuring that undisclosed income is assessed and taxed in a fair, transparent, and legally robust manner.

      Detailed Analysis of Clause 292 of the Income Tax Bill, 2025

      Sub-section (1): Overriding Effect and Scope

      Clause 292(1) asserts its primacy over all other provisions of the Act. It mandates that, upon the initiation of a search or requisition, the Assessing Officer (AO) must assess or reassess the total income of the block period in accordance with the special procedure laid out in this Chapter. This sub-section is crucial for several reasons:

      • It establishes the exclusive jurisdiction of the special procedure in search cases, thereby excluding the operation of regular assessment provisions for the block period.
      • The phrase "irrespective of any other provision" underscores the legislative intent to avoid procedural conflicts and ensure the supremacy of the search assessment regime.
      • The trigger for the application of Clause 292 is the initiation of a search or the making of a requisition, aligning with the established jurisprudence that the search event is the foundational fact for block assessment.

      Sub-section (2): Abatement of Pending Proceedings

      Clause 292(2) provides that all assessment, reassessment, or recomputation proceedings (other than those under this Chapter) pending for any tax year within the block period shall abate upon the initiation of search or requisition. The legal and practical implications are:

      • This ensures that there is no parallel or duplicative assessment for the same period, thereby preventing inconsistent or conflicting findings.
      • The abatement is automatic and deemed to take effect from the date of search/requisition, streamlining the transition to the special procedure.
      • Litigation has often arisen around the meaning of "pending" proceedings; Clause 292, by explicit language, seeks to minimize ambiguity, though practical disputes may still arise regarding the status of proceedings at the time of search.

      Sub-section (3): Abatement of Proceedings Involving References or Orders

      This sub-section extends the abatement to proceedings where references (u/s 166(1)) or orders (u/s 166(6)) have been made or passed. The abatement covers both the main assessment and the ancillary reference/order, ensuring:

      • Comprehensive abatement of all proceedings connected to the block period, including transfer pricing or valuation references that may be pending.
      • Administrative clarity, as all related proceedings are subsumed under the special assessment regime triggered by the search.
      • The date of abatement is synchronized with that of sub-section (2), avoiding procedural confusion.

      Sub-section (4): Procedure for Subsequent Searches

      Clause 292(4) addresses situations where an assessee is subject to a subsequent search or requisition. It stipulates:

      • Any pending assessment arising from an earlier search must be completed before initiating assessment for the subsequent search.
      • The assessment for the subsequent search follows only after the earlier one is finalized, ensuring chronological order and procedural fairness.
      • If the period available for the subsequent assessment is less than three months, it is mandatorily extended to at least three months from the end of the month in which the earlier assessment is completed. This extension is designed to protect the rights of both the assessee and the revenue by ensuring adequate time for assessment.

      This sub-section is particularly significant in complex cases involving multiple searches over time, and reflects a considered approach to procedural management.

      Sub-section (5): Revival of Abated Proceedings upon Annulment

      Clause 292(5) deals with the scenario where an assessment under the special procedure is annulled in appeal or other legal proceedings. It provides:

      • All abated proceedings, including assessments, reassessments, recomputations, references, or orders, are revived from the date the annulment order is received by the Principal Commissioner or Commissioner.
      • This revival is conditional and will cease if the order of annulment is subsequently set aside.

      This mechanism balances the interests of finality in tax proceedings with the need to prevent revenue leakage or injustice to the taxpayer in the event of procedural irregularities or legal errors in the special assessment.

      Sub-section (6): Separate Assessment of Non-Undisclosed Income

      Clause 292(6) ensures that income (other than undisclosed income) for the tax year in which the last search authorization or requisition is executed is assessed separately under the normal provisions of the Act. This maintains the conceptual distinction between:

      • Income uncovered or inferred as a result of search (to be assessed under the special procedure), and
      • Regular income of the relevant year (to be assessed under the ordinary provisions).

      This distinction is crucial for the integrity of the tax system and for upholding the principle that only undisclosed income is subject to the harsher regime of search assessments.

      Sub-section (7): Charging of Tax on Block Period Income

      Clause 292(7) provides that the total income pertaining to the block period (as defined in section 293(5)) shall be taxed at the rate specified in section 192, regardless of the tax year(s) to which such income pertains. The key elements are:

      • Uniformity in the rate of tax for block period income, facilitating administrative simplicity and predictability for taxpayers.
      • The rate is prescribed by cross-reference to section 192, which must be examined for the applicable rate structure.
      • This provision eliminates disputes regarding the applicable tax rate for income relating to different years within the block period.

      Practical Implications

      Clause 292 is designed to have far-reaching practical impacts for all stakeholders involved in search cases:

      • For Taxpayers: The provision provides procedural certainty, clarifies the treatment of undisclosed income, and ensures that regular income is not swept into the harsher block assessment regime. However, the abatement and revival mechanisms may expose taxpayers to revived assessments in the event of legal challenges.
      • For Revenue Authorities: The clause enhances administrative efficiency by consolidating search-related assessments and eliminating duplicative proceedings. The revival mechanism protects the revenue's interests in cases where search assessments are annulled.
      • For Legal Practitioners: The provision offers a clearer, more structured framework for advising clients, but also introduces new areas for potential litigation, especially regarding the scope of abatement, revival, and the treatment of multiple searches.

      The procedural timelines and extensions, particularly in cases of multiple searches, are calibrated to prevent both undue delay and procedural prejudice.

      Comparative Analysis with Section 158BA of the Income-tax Act, 1961

      Structural and Conceptual Parallels

      Both Clause 292 and Section 158BA share the following core features:

      • They provide a special, overriding procedure for the assessment of income discovered in search cases, to the exclusion of general assessment provisions.
      • They mandate the abatement of pending regular assessments for the block period, preventing duplication and conflict.
      • Both contain mechanisms for the revival of abated proceedings in the event of annulment of search assessments.
      • They distinguish between undisclosed income (to be assessed under the special regime) and regular income (to be assessed under the normal provisions).
      • Both prescribe a uniform rate of tax for block period income, irrespective of the year(s) to which the income pertains.

      Key Differences and Innovations in Clause 292

      • Scope of Income Assessed:
        • Section 158BA focuses on the assessment of "total undisclosed income" as a result of search. Clause 292, while retaining this focus, refers more generally to "total income" of the block period, as defined elsewhere in the Bill. This may reflect a broader or more nuanced approach to what constitutes assessable income in search cases, though the substantive impact will depend on the definition in section 293(5).
      • References and Orders:
        • Section 158BA(3) refers specifically to references and orders u/s 92CA (Transfer Pricing Officer). Clause 292(3) refers to section 166, which may cover a broader range of references or orders, potentially expanding the ambit of abatement. This reflects a modernization and possible expansion of the types of proceedings subsumed under the special regime.
      • Multiple Searches:
        • Both provisions address the procedure for multiple or subsequent searches, but Clause 292 provides a more detailed and explicit mechanism for the extension of assessment timelines, ensuring a minimum period of three months for subsequent assessments. This procedural safeguard is more clearly articulated in Clause 292, reflecting lessons learned from practical difficulties u/s 158BA.
      • Revival Mechanism:
        • Both provisions provide for the revival of abated proceedings if the search assessment is annulled. Clause 292, however, is more explicit in including "reference or order" in the list of proceedings to be revived, which may address ambiguities that have arisen under the earlier law.
      • Tax Rate Reference:
        • Section 158BA(7) refers to the rate specified in section 113. Clause 292(7) refers to section 192 of the new Bill. The substantive rate may differ, and the cross-reference ensures that the applicable rate is always current with the main charging provision of the new Act.
      • Terminological and Structural Modernization:
        • Clause 292 employs updated terminology and cross-references to provisions in the New Bill, reflecting a modernization of the legislative drafting style and structure.

      Ambiguities and Potential Issues

      • Definition of "Total Income" vs. "Total Undisclosed Income":
        • The shift from "total undisclosed income" to "total income" of the block period (as referred to in) may create interpretative challenges unless the definition in the new Act is clear and unambiguous. There is potential for disputes regarding the scope of income to be assessed under the special procedure.
      • Abatement and Revival:
        • While the mechanics of abatement and revival are similar, the expanded reference to "reference or order" in Clause 292 may raise questions about the types of proceedings that can be revived, especially in complex cases involving multiple references or orders.
      • Procedural Timelines:
        • The extension of assessment periods in cases of multiple searches is a positive development, but may also lead to disputes regarding the computation of time and the sequence of assessments, particularly where searches are closely spaced or overlapping.

      Comparative Jurisprudence and Policy Considerations

      The evolution from Section 158BA to Clause 292 is informed by extensive judicial interpretation and administrative experience. Courts have consistently emphasized the need for procedural fairness, clarity in the scope of abatement, and the distinct treatment of undisclosed income. Clause 292 seeks to codify and expand upon these principles, providing a more robust framework for the future.

      From a policy perspective, the new provision reflects a desire to modernize the law, reduce litigation, and enhance both taxpayer and revenue protection in search cases. The explicit procedural safeguards and clearer drafting are likely to reduce ambiguity and administrative friction, though new interpretative issues may arise as the provision is put into practice.

      Conclusion

      Clause 292 of the Income Tax Bill, 2025 represents a significant advance in the law relating to the assessment of income in search cases. It builds upon the foundation laid by Section 158BA, retaining its essential structure while introducing important clarifications, procedural safeguards, and modernized language. The provision is designed to ensure the fair, efficient, and legally robust assessment of income unearthed during search operations, while protecting both taxpayer rights and the revenue's interests. As with any major legislative reform, the ultimate success of Clause 292 will depend on its practical implementation and the resolution of any interpretative challenges that may arise. Ongoing judicial scrutiny and administrative guidance will be essential to ensure that the objectives of the provision are fully realized in practice.


      Full Text:

      Clause 292 Assessment of income pertaining to the block period.

      Topics

      ActsIncome Tax