What are Subsidiary Books?
Subsidiary Books are special books used to record similar types of transactions separately.
If a business has many transactions, recording everything in one journal can become crowded and confusing.
So businesses use separate books for common transaction types.
Simple line: Subsidiary Books divide transactions into smaller special books.
Credit purchases go to Purchase Book.
Credit sales go to Sales Book.
Cash and bank transactions go to Cash Book.
Purchase returns go to Purchase Return Book.
Sales returns go to Sales Return Book.