(a) National income is the income generated by factors of production. But personal income is the income received by factors of production. So personal income is a receipt concept.
(b) Income of the government sector is included in the national income but not included in personal income.
© National income is the sum total of income of the factors earned in lieu of productive services. But personal income includes both factor income and transfer receipts.
(d) Personal income also includes windfall gains, which are, not including in national income.
(e) Undistributed profits of the companies and corporate profits taxes are the constituents of national income. But these are to be excluded from National income for the calculation of personal income.
(f) Interest on national debt is not a part of national income. But it is a part of personal income.