Goodwill is classified as a real account because it represents an intangible asset of the business. Real accounts relate to assets and properties, and since goodwill has monetary value and provides future economic benefits, it falls under this category.

Real accounts are accounts related to assets and properties owned by a business. A cash account represents physical currency or bank balances, which are tangible assets. In contrast, rent and insurance expense accounts are nominal accounts because they represent operational costs, and rent income is a nominal account representing revenue. Therefore, only the cash account fits the definition of a real account.

Real accounts represent assets and properties owned by a business. Since office equipment is a tangible asset, it falls under the classification of a Real account, following the rule 'debit what comes in, credit what goes out'.

A building account is considered a non-current asset, which is why it is classified as a real account. Real accounts represent assets, liabilities, and equity, and are typically reported on the balance sheet. This makes it different from nominal accounts, which represent income and expenses that are closed out at the end of each accounting period. As a tangible property, the building holds value for the business over multiple periods.

When a fixed asset like a building is purchased, it is recorded as an increase in the asset account. The 'Purchase account' is used only for the acquisition of inventory intended for resale. Therefore, the cost of the building is debited to the Building account to reflect the acquisition of the asset.