Consumption expenditure

Every rupee a household spends falls into one of two broad buckets. Investment expenditure leaves something behind that can generate more income later — a bond, a property, a mutual fund unit. Consumption expenditure leaves nothing behind: once the money is spent, it is gone.

A restaurant bill, new clothes, or a haircut are the workbook's own examples of consumption expenditure. None of these come back to generate income for the household later, however necessary or enjoyable they were at the time.

The line is not always obvious. Education for children looks like consumption — the fees are spent and gone — but the workbook treats it as an investment if it raises the child's future earning power, so it should be prioritised, not treated as pure lifestyle spending.

The workbook's suggested discipline is to allocate savings for goals before considering discretionary consumption expenditure, so future needs are funded first: 'Income minus Savings equals Expenses', rather than saving only what happens to be left over after spending. A Systematic Investment Plan (SIP), especially one deducted automatically from salary, is the workbook's own tool for enforcing this order — the investment expenditure happens before the consumption spending has a chance to use up the money.

Deepa earns Rs 90,000 a month. In one month, she spends Rs 8,000 dining out and buying clothes (consumption expenditure — nothing generated income) and puts Rs 15,000 into a recurring deposit (investment expenditure — this asset will pay her interest going forward).

If Deepa spends first and saves what's left, an unplanned Rs 10,000 outflow on consumption items can easily crowd out her Rs 15,000 investment for the month. By setting up her Rs 15,000 SIP to auto-debit on salary day, before any consumption spending happens, Deepa ensures the investment expenditure always happens — and only what remains is available for dining out and shopping.

Chapter 4, section 4.2.1, 'Differentiating between consumption expenditure and investment expenditure', is part of the debt-and-expenditure planning discussion and explicitly flags children's education as an exception that looks like consumption but should be treated as investment. Expect a question that lists several expense items and asks you to classify each as consumption or investment expenditure.

• Education is the workbook's flagged exception — it looks like consumption expenditure but should be prioritised like an investment, because it can raise future income.
• Do not assume all durable purchases are investment expenditure — a car, even though it lasts years, is a consumption asset because it does not generate income and depreciates.
• The workbook's ordering rule is 'save first, spend after' (Income minus Savings equals Expenses), the reverse of the common habit of spending first and saving whatever is left.