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 characters 0/2000
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.
Relevance Default Date
    Manuals Income Tax
    I have a handicapped dependent who is my cousin ( Daughter of my mother’s sister). She is complete...
    Manuals Income Tax
    Mr. X is a pensioner and his pension is less than his son’s salary. His daughter is a disabled dep...
    Manuals Income Tax
    Who can be your disabled dependent?
    Manuals Income Tax
    What is considered as disability and Severe Disability?
    Manuals Income Tax
    If office deducts salary for medical insurance for employee and his family, whether the employee can...
    Manuals Income Tax
    Can somebody having invested the amount from income exempt from tax or by taking loan, claim deducti...
    Manuals Income Tax
    An individual assessee pays (through any mode other than cash) during the previous year medical insu...
    Manuals Income Tax
    Part contribution ?
    Manuals Income Tax
    Mr A, new retail investor has invested in listed equity share/units of equity oriented fund of Rajiv...
    Manuals Income Tax
    X deposit 1,10,000 in PPF & made a contribution of 410,000 to annuity policy of LIC (eligible for de...
    Manuals Income Tax
    X deposit 41,000 in PPF & made a contribution of 1,10,000 to annuity policy of LIC (eligible for ded...
    Manuals Income Tax
    Suppose Mr. has paid premium of 25,000 for policy A taken on 30th June 2011 (sum assured 2,00,000) a...
    Manuals Income Tax
    I and my wife both paid for education of our one child. My wife paid 70,000 and I paid 1,60,000 can ...
    Manuals Income Tax
    Can I claim deduction u/s 80C of Income tax Act, 1961 for my adopted child’s school fees?
    Manuals Income Tax
    What are the inclusions and exclusions in Tuition Fees?
    Manuals Income Tax
    Example illustrating the Rule of Residence for an Individual for the Assessment year 2015-16
    Manuals Income Tax
    Example:-During the previous year ending 31st March, 2013, X, a salaried employee received ₹ 1...
    Manuals Income Tax
    Example:-The employer sells the following assets to the employees on 1st January 2015. Car to Z for...
    Manuals Income Tax
    Example:-. On 15th October 2014, the company gives its music system to Y for domestic use. Ownershi...
    Manuals Income Tax
    Example:-X owns car (1400cc). He uses it partly for official purposes and partly for private purpose...
❯❯
Maximize Maximize Maximize
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 Summaries Hide All Summaries
Manuals Income Tax
Show AI Summary
Deduction under section 80DD: a cousin does not qualify as a dependent for claiming the deduction.
The statutory dependent definition limits eligible relatives to spouse, children, parents, brothers, sisters, spouse's siblings, and parents' siblings; a cousin (daughter of mother's sister) is excluded, so expenses for her maintenance and medical treatment cannot be claimed as a deduction.
Manuals Income Tax
Show AI Summary
Disability deduction eligibility: a dependent sibling may claim 80DD deduction if financially supporting the disabled dependent.
An Assessing Officer's objection that the son cannot claim the deduction because Mr. X receives pension is incorrect. Deduction under section 80DD covers dependents including brothers and sisters; the son may claim the deduction if the disabled daughter is dependent on him. The son should furnish an undertaking from Mr. X confirming the daughter's dependency on the son rather than on Mr. X.
Manuals Income Tax
Show AI Summary
Disabled dependent eligibility for income tax deductions requires relatives or HUF members to be wholly or mainly dependent.
Eligibility for deductions requires that the disabled person be wholly or mainly dependent on the claimant for support and maintenance. For individuals, eligible dependents include spouse, children, parents, brothers and sisters. For a HUF, any member of the HUF may be treated as a disabled dependent for claiming the deduction.
Manuals Income Tax
Show AI Summary
Disability definition sets qualifying conditions and severity thresholds for income-tax deductions for specified impairments under tax law.
Definition of disability for income-tax deductions under sections 80DD and 80DDB follows the Persons with Disabilities Act, 1995, listing impairments such as blindness, low vision, leprosy-cured, hearing impairment, locomotor disability, mental retardation, mental illness, autism, cerebral palsy and multiple disabilities; a person is considered disabled when impairment is not less than 40%, and severe disability is an impairment of 80% or more, which determine eligibility for the specified deductions.
Manuals Income Tax
Show AI Summary
Health insurance deduction allowed when employee bears premium paid non-cash and obtains employer certificate confirming the deduction.
A deduction under section 80D is available where the employee has paid medical insurance premiums for himself and/or his family by a non-cash mode; the employee should obtain an employer's certificate confirming deduction of the amount for medical insurance purposes.
Manuals Income Tax
Show AI Summary
Deduction under section 80D requires payment from taxable income; payments from exempt income or loans disqualify.
Deduction under section 80D is available only where the payment is made out of income chargeable to tax; payments from tax-exempt income or from borrowed funds do not qualify for the deduction.
Manuals Income Tax
Show AI Summary
Medical insurance deduction under 80D varies by parental senior citizen status, affecting combined family and parental premium allowances.
Deduction under 80D allows an individual who pays medical insurance premiums other than in cash to claim a deduction for premiums for the assessee, spouse and dependent children as one component and for parental premiums as a separate component; the total allowable deduction depends on whether any parent is a senior citizen, with a higher combined deduction if a parent is a senior citizen.
Manuals Income Tax
Show AI Summary
Deduction under section 80D: contributors who pay health insurance premiums non cash may claim proportional deductions
Contributors who partly pay health insurance premiums may each claim a deduction equal to the amount they actually paid, provided each share is paid directly to the insurer and by a mode other than cash; in such cases each payer may claim the deduction against their respective taxable income.
Manuals Income Tax
Show AI Summary
Deduction under 80CCG limited by eligible investment percentage and income threshold, with recapture on scheme violation.
Deduction under the Rajiv Gandhi Equity Savings Scheme is computed as a percentage of eligible investments in listed equity shares and equity oriented fund units but is restricted by a monetary ceiling; sale of previously qualifying units can breach scheme conditions and cause partial recapture as taxable income; exceeding the prescribed gross total income threshold disqualifies the taxpayer from claiming the deduction for that year.
Manuals Income Tax
Show AI Summary
Deduction under section 80CCE limits combined 80C and 80CCC claims for contributions to savings instruments.
Contributions to Public Provident Fund and an annuity policy eligible under Section 80CCC are deductible but subject to the aggregate ceiling under Section 80CCE; when combined eligible deductions across Sections 80C and 80CCC exceed the statutory limit, the deductible amount is restricted to that ceiling and any excess is disallowed.
Manuals Income Tax
Show AI Summary
Aggregate deduction under section 80CCE limits combined 80C and 80CCC contributions to the statutory overall ceiling.
Contributions to a public provident fund and annuity policy premiums are aggregated and the deductible amount is the lesser of the combined eligible contributions and the statutory aggregate ceiling; when the combined total exceeds that ceiling, the deduction is restricted to the statutory limit.
Manuals Income Tax
Show AI Summary
Deduction under 80C: eligible life insurance premiums allowed up to policy ceilings; excess disallowed; one policy's maturity taxable.
Deduction under Section 80C allows life insurance premiums up to policy wise ceilings based on a percentage of the sum assured. Policy A (sum assured 200,000) with a ceiling of 20% permits the full 25,000 premium as deductible; Policy B (sum assured 100,000) with a ceiling of 10% permits only 10,000 of the 12,000 premium as deductible. The total deduction equals the aggregate of eligible premiums, and Policy B's maturity proceeds are not exempt from tax.
Manuals Income Tax
Show AI Summary
Deduction under 80C: spouses can separately claim education-related deductions based on their individual contributions and limits.
Spouses who each make genuine payments toward a child's education may separately claim a deduction under deduction u/s 80C based on their respective contributions, with each spouse's claim limited by the statutory individual ceiling; the wife may claim her actual payment and the husband may claim up to the maximum permissible individual deduction.
Manuals Income Tax
Show AI Summary
Deduction under section 80C for adopted child's school fees permitted where the statute is silent on biological status.
Because 80C does not specify that the child must be biological, deductions for school fees paid for an adopted child are treated as permissible under the provision; the operative legal point is the statute's silence regarding the child's biological status.
Manuals Income Tax
Show AI Summary
Tuition fee deduction under 80C covers institutional tuition but excludes transport, hostel, library and private tuition charges.
Deduction under Section 80C allows tuition fee claims only for amounts paid to recognised educational institutions, including pre nursery, play school and nursery class fees; excluded are transport, hostel, mess, library and vehicle stand charges, late fees, part time and distance learning course fees, and private tuition.
Manuals Income Tax
Show AI Summary
Residence test for individuals sets presence and prior year stay thresholds determining resident status for income tax assessment.
Rule of residence for individuals for the assessment year 2015-16 uses presence-based thresholds and cumulative prior year conditions to determine resident in India status. Individuals are classified by category-those leaving for employment, visitors who are citizens or persons of Indian origin, and all other individuals-with each category subject to the single year presence test and, where applicable, an additional short term presence requirement plus multi year aggregation criteria assessing residence across preceding years.
Manuals Income Tax
Show AI Summary
Relief under Section 89(1): compare tax on receipt and accrual bases to determine relief for salary arrears and adjust current tax payable.
Relief for salary received in arrears or advance is determined by computing tax on the aggregate income on the receipt basis and comparing it with tax computed as if the income had been charged to the earlier year(s); the relief equals the difference. The example aggregates salary and arrears, applies standard and specified deductions, computes net income and tax for the years on receipt and accrual bases, and derives the relief amount which is then deducted from current year tax payable.
Manuals Income Tax
Show AI Summary
Perquisite valuation: employer sale of movable assets to employees taxed as written down value less sale consideration.
Taxable perquisite on employer sale of movable assets to employees is the difference between the employer's written down value (after applying depreciation to cost to reach the balance on the relevant date) and the sale consideration; the document demonstrates this by computing successive depreciated written down values for a car, computer and fridge and subtracting the sale prices to determine the perquisite amounts.
Manuals Income Tax
Show AI Summary
Use of movable assets perquisite taxed at prescribed annual percentage with pro rata computation for period of employer-provided use.
Use of moveable assets provided by an employer is a taxable perquisite valued by applying a prescribed annual percentage of the asset's cost, with a pro rata adjustment for the actual days of employee use within the year (annual percentage of cost x days of use/365).
Manuals Income Tax
Show AI Summary
Perquisite valuation for motor car under Rule 3(2): employer reimbursements reduced by official-use deduction, affecting taxable perquisite.
Valuation of a motor car perquisite requires deducting the official-use portion from employer reimbursements before treating the balance as a taxable perquisite; absent a log book a fixed deduction method is applied, while contemporaneous usage evidence permits apportionment of the reimbursement by the documented official-use percentage.

TMI Notes

Back

All TMI Notes

Showing Results for :
Reset Filters
No Records Found

TMI Notes

Back

All TMI Notes

whatsapp Join Channel
Showing Results for : Reset Filters

Capital Gains taxation on Qualifying Ships : Clause 229(8) to (10) of the Income Tax Bill, 2025 Vs. Section 115VN of the Income-tax Act, 1961

14 May, 2025

Contents
Acts
Rules & Regulations
Summary
Note

Note

-

Bookmark

Print

Print

Clause 229 Depreciation and gains relating to tonnage tax assets.

Income Tax Bill, 2025

Introduction

The Indian legislative framework for the taxation of shipping companies has, over the years, recognized the unique nature of the shipping industry and the need for a specialized regime. The tonnage tax scheme (TTS) was introduced as a concessional regime for shipping companies, providing for the computation of income based on the net tonnage of qualifying ships rather than the traditional income computation under normal provisions. The Income Tax Bill, 2025, continues this legacy by proposing a comprehensive regime under Clause 229 for the treatment of depreciation and capital gains relating to tonnage tax assets. Clause 229(8) to (10) of the Income Tax Bill, 2025, specifically addresses the taxation of profits or gains arising from the transfer of capital assets, i.e., qualifying ships or vessels, and delineates the treatment of such gains under the tonnage tax regime. These provisions are a direct evolution of Section 115VN of the Income-tax Act, 1961, which currently governs the chargeability and computation of gains from the transfer of tonnage tax assets. This commentary provides a detailed, itemized analysis of Clause 229(8) to (10), drawing comparisons with the existing Section 115VN, and discusses the legal, practical, and policy implications for stakeholders within the shipping industry.

Objective and Purpose

The primary objective of Clause 229(8)-(10) and Section 115VN is to ensure clarity and consistency in the computation and taxation of capital gains arising from the transfer of assets forming part of the block of qualifying assets under the tonnage tax regime. The legislative intent is to:

  • Prevent tax arbitrage or avoidance by ensuring that gains from the sale of qualifying ships are appropriately taxed, even within a concessional regime.
  • Maintain a clear demarcation between qualifying and non-qualifying assets for depreciation and capital gains purposes.
  • Provide certainty to shipping companies regarding the tax treatment of asset transfers during or after the tonnage tax period.
  • Align the computation methodology with general capital gains provisions, while making necessary modifications to reflect the peculiarities of the tonnage tax scheme.

The historical background for these provisions lies in the need to adapt standard depreciation and capital gains rules (which are based on the concept of block of assets) to the specialized context of tonnage tax, where only certain ships qualify for concessional treatment and others do not.

Detailed Analysis of Clause 229(8) to (10) of the Income Tax Bill, 2025

Clause 229(8): Taxation of Gains from Transfer of Qualifying Assets

Any profits or gains arising from the transfer of a capital asset being an asset forming part of the block of qualifying assets shall be chargeable to income-tax as per sections 67 and 74, and the capital gains so arising shall be computed as per sections 67 to 81.

Clause 229(8) establishes the foundational rule that any profits or gains resulting from the transfer (i.e., sale, exchange, or relinquishment) of a capital asset, specifically an asset forming part of the block of qualifying assets, are chargeable to income-tax. The computation and chargeability are to be done in accordance with sections 67 and 74 (and for computation, sections 67 to 81).

Interpretation and Legal Principle:

- The clause ensures that even though the tonnage tax regime provides a concessional method for computing business income, capital gains on the transfer of qualifying ships are not exempt from tax. - The reference to "block of qualifying assets" highlights the importance of maintaining a separate block for ships that qualify under the TTS, as opposed to other assets.

- The cross-reference to sections 67 and 74 (presumably the new provisions for capital gains computation and chargeability in the 2025 Bill) indicates that the general machinery for taxing capital gains applies, subject to modifications prescribed in the tonnage tax regime.

Ambiguity or Issues:

- The clause leaves open the exact mechanics of computation, which are clarified in subsequent sub-clauses and cross-referenced sections.

- The use of "as per sections 67 and 74" requires careful reading of those sections to understand the full scope, but the intention is clear: capital gains on qualifying assets are taxable, and the computation follows general rules with necessary modifications.

Clause 229(9): Modified Application of General Capital Gains Provisions

For the purposes of computing such profits or gains, as referred to in sub-section (8), the provisions of section 74 shall have effect as if for the words "written down value of the block of assets", the words "written down value of the block of qualifying assets" had been substituted.

Clause 229(9) introduces a crucial modification: while the general capital gains computation provisions (section 74) apply, wherever the phrase "written down value of the block of assets" appears, it is to be read as "written down value of the block of qualifying assets".

Interpretation and Legal Principle:

- The standard capital gains regime for depreciable assets (under the existing law, section 50 of the 1961 Act) is based on the concept of a block of assets and their written down value (WDV).

- Under the tonnage tax regime, it is necessary to distinguish between qualifying and non-qualifying assets, as only the former benefit from the concessional regime.

- This clause ensures that the computation of capital gains on the transfer of a qualifying ship is based on the WDV of the block of qualifying assets, not the entire block of ships or assets, thereby preventing distortion of gains or losses.

Ambiguity or Issues:

- There may be practical challenges in segregating the WDV of qualifying and non-qualifying assets, especially if assets move between blocks (addressed in earlier sub-clauses).

- The clause is clear in its intent and provides a direct legislative override to avoid interpretational disputes.

Clause 229(10): Definition of Written Down Value of Qualifying Assets

In this section, "written down value of the block of qualifying assets" means the written down value computed as per sub-section (2).

Clause 229(10) provides a definition for the term "written down value of the block of qualifying assets", linking it back to the computation method prescribed in sub-section (2) of Clause 229.

Interpretation and Legal Principle:

- The definition ensures that there is no ambiguity regarding the WDV to be used for capital gains computation.

- Sub-section (2) prescribes a formula for apportioning the WDV between qualifying and non-qualifying assets, thereby providing a clear basis for subsequent computations.

Ambiguity or Issues:

- The linkage to sub-section (2) is logical and necessary, but it requires taxpayers and authorities to meticulously apply the apportionment formula, which may involve complex calculations if there are frequent changes in the composition of qualifying and non-qualifying ships.

Practical Implications

The practical implications of Clause 229(8)-(10) are significant for shipping companies opting for the tonnage tax scheme:

  • Clarity in Taxation: The provisions clarify that capital gains on the transfer of qualifying ships are taxable, removing any doubt that the concessional regime exempts such gains.
  • Segregation of Assets: The mandatory segregation of qualifying and non-qualifying assets for both depreciation and capital gains purposes requires robust accounting and asset tracking systems.
  • Compliance Burden: Shipping companies must ensure accurate computation of the WDV for each block, especially when assets are transferred between qualifying and non-qualifying status.
  • Prevention of Tax Arbitrage: The provisions prevent the shifting of assets between blocks to manipulate gains or losses, thereby protecting the integrity of the tax base.
  • Alignment with General Law: By aligning the computation with general capital gains provisions (with necessary modifications), the law ensures consistency and reduces litigation risk.

Comparative Analysis: Clause 229(8)-(10) vs. Section 115VN of Income-tax Act, 1961

Section 115VN of the Income-tax Act, 1961, serves as the precursor to Clause 229(8)-(10) and is worded as follows:

Any profits or gains arising from the transfer of a capital asset being an asset forming part of the block of qualifying assets shall be chargeable to income-tax in accordance with the provisions of section 45, read with section 50, and the capital gains so arising shall be computed in accordance with the provisions of sections 45 to 51: Provided that for the purpose of computing such profits or gains, the provisions of section 50 shall have effect as if for the words written down value of the block of assets, the words written down value of the block of qualifying assets had been substituted. Explanation. For the purposes of this Chapter, written down value of the block of qualifying assets means the written down value computed in accordance with the provisions of sub-section (2) of section 115VK.

Key Points of Comparison:

  1. Chargeability and Computation:
    • Section 115VN: Refers to sections 45 (chargeability of capital gains) and 50 (computation for depreciable assets), and computation as per sections 45 to 51.
    • Clause 229(8): Refers to sections 67 and 74 (presumably the new equivalents in the 2025 Bill), and computation as per sections 67 to 81.
    • Analysis: The structure and intent remain the same, with the updated Bill aligning references to the new section numbers. The core principle-taxing gains from the transfer of qualifying ships as capital gains-remains unchanged.
  2. Modification of General Provisions:
    • Section 115VN: Provides that section 50 (dealing with block of assets) shall be read as if "block of assets" refers to "block of qualifying assets".
    • Clause 229(9): Similarly, modifies section 74 to substitute "block of assets" with "block of qualifying assets".
    • Analysis: Both provisions introduce a legal fiction to ensure that only the WDV of qualifying assets is considered for capital gains computation, preventing cross-contamination with non-qualifying assets. The approach is preserved in the new Bill.
  3. Definition of Written Down Value:
    • Section 115VN Explanation: Refers to computation as per section 115VK(2).
    • Clause 229(10): Refers to computation as per Clause 229(2).
    • Analysis: The cross-reference is updated to reflect the new legislative framework, but the substance is identical: the WDV is to be apportioned as per the prescribed formula.
  4. Structural and Drafting Differences:
    • The 2025 Bill breaks down the provision into three sub-clauses for clarity, whereas Section 115VN is a single, compound section with a proviso and an explanation.
    • The new Bill uses updated section numbers, possibly reflecting a reorganization of the capital gains provisions in the new tax code.
    • There is greater clarity and ease of reference in the new Bill, which may aid in compliance and reduce interpretational disputes.

Substantive Parity: Despite the differences in structure and section references, the substantive law remains unchanged. Both provisions:

  • Tax capital gains on the transfer of qualifying ships under the tonnage tax regime.
  • Mandate the use of the WDV of the block of qualifying assets for computation.
  • Provide a legal fiction to modify the general capital gains computation for depreciable assets.
  • Define the WDV by reference to a specific apportionment formula.

Potential Improvements in the 2025 Bill: The 2025 Bill, by reorganizing and clarifying the provisions, may improve compliance and reduce ambiguity. The explicit breakdown into sub-clauses makes the law more accessible and user-friendly, especially for non-specialist readers.

Practical and Policy Implications

For shipping companies, the provisions in both the existing Act and the proposed Bill have the following implications:

  • Tax Planning: Companies must carefully plan the acquisition, use, and transfer of ships to optimize tax outcomes within the constraints of the law.
  • Accounting Systems: Robust systems are required to track the WDV of qualifying and non-qualifying assets, especially in cases where assets are moved between blocks.
  • Regulatory Compliance: Accurate and timely compliance with disclosure and reporting requirements is essential to avoid disputes and penalties.
  • Litigation Risk: The detailed apportionment and legal fiction reduce the scope for litigation, but disputes may still arise regarding the classification or movement of assets.
  • Policy Consistency: The continuation of these provisions in the new Bill reflects policy consistency and provides certainty to the shipping industry.

Comparative Perspective: International Practices

The tonnage tax regime is not unique to India; several jurisdictions, including the UK, Singapore, and Greece, have similar regimes. Most such regimes provide for concessional taxation of shipping income but tax capital gains on ship transfers under normal rules. The Indian approach-taxing capital gains on qualifying ships by reference to a segregated block of assets-is consistent with international best practices and ensures that the concessional regime does not become a loophole for tax avoidance.

Conclusion

Clause 229(8) to (10) of the Income Tax Bill, 2025, represents a clear and logical evolution of the existing Section 115VN of the Income-tax Act, 1961. Both provisions serve to ensure that capital gains from the transfer of qualifying ships under the tonnage tax regime are appropriately taxed, using a modified version of the general capital gains computation rules to reflect the unique nature of the regime. The updated drafting in the 2025 Bill enhances clarity and accessibility without making substantive changes to the law. For stakeholders, the provisions underscore the need for meticulous asset tracking and compliance, while providing certainty and preventing tax arbitrage. Potential areas for further reform or judicial clarification could include guidance on the practical implementation of asset movement between qualifying and non-qualifying blocks, as well as clarification on the treatment of partial disposals or complex asset structures.


Full Text:

Clause 229 Depreciation and gains relating to tonnage tax assets.

Topics

Acts Income Tax