購読料

1. Origins, structure, and basic meaning

• Structure: 購読料 (こうどくりょう) is a compound noun for the fee paid to receive a periodical on an ongoing basis.
• Basic usage: 年間購読料を支払う makes the annual fee the object paid, while 新聞の購読料が変わる makes the newspaper fee the subject that will change next month.

2. Common pitfalls and similar expressions

• Period and publication specify the fee
  • In 年間購読料, 年間 specifies the billing period; in 新聞の購読料, 新聞 specifies the publication. 購読料 alone establishes neither detail.