Meaning of income „accruing‟ and „arising‟ :
Accrue refers to the right to receive income, whereas due refers to the right to enforce
payment of the same. For e.g. salary for work done in December will accrue throughout the month,  day to day, but will become due on the salary bill being passed on 31st December or 1st January. Similarly, on Government securities, interest payable on specified dates arise during the period of holding, day to day, but will become due for payment on the specified dates. Example: Interest on Government securities is usually payable on specified dates, say on 1st January and 1st July. In all such cases, the interest would be said to accrue from 1st July to 31st December and on 1st January, it will fall due for payment. It must be noted that income which has been taxed on accrual basis cannot be assessed again on receipt basis, as it will amount to double taxation. For example, when a loan to a director has already been treated as dividend under section 2(22)(e) and later dividend is declared, distributed and adjusted against the loan, the same cannot be treated as dividend income again. With a view to removing difficulties and clarifying doubts in the taxation of income, Explanation 1 to Section 5 specifically provides that an item of income accruing or arising outside India shall not be deemed to be received in India merely because it is taken into account in a balance sheet prepared in India. Further, Explanation 2 to Section 5 makes it clear that once an item of income is included in the assessee‟s total income and subjected to tax on the ground of its accrual/deemed accrual or receipt, it cannot again be included in the person‟s total income and subjected to tax either in the same or in a subsequent year on the ground of its receipt – whether actual or deemed.