Use categories that answer a question
The best category list is neither extremely broad nor painfully detailed. It should help you decide where to cut back, estimate fixed commitments, prepare records or understand a business. Ten to fifteen top-level categories are enough for most personal statements.
A sensible personal expense structure
- Housing and utilities
- Groceries and household
- Food and delivery
- Transport and fuel
- Healthcare
- Shopping and personal care
- Entertainment and travel
- EMIs and debt payments
- Insurance and investments
- Fees and taxes
- Transfers between own accounts
- Income and refunds
Rules that keep totals accurate
Credit-card bill payments are transfers to settle earlier spending; counting both the card purchases and the bank-account payment duplicates expenses. Likewise, movement from savings to a wallet or another owned account is not new spending until the money reaches a merchant.
Keep refunds in the original category or show them as a clear offset. Whichever rule you choose, apply it consistently month to month.
Personal versus business expenses
If one account contains both, add a separate business-purpose field instead of forcing everything into a business category. Record the basis for classifying an expense and have your accountant confirm the appropriate tax treatment.