根据你提供的句子上下文，其中的 lead fees 可能是 late fees 的误拼。late fee的意思是“滞纳金”。又如：

The penalties and late fees began to snowball. 处罚和滞纳金开始越积越多。

We returned the library book late and had to pay a late fee. 我们归还图书馆的书晚了，不得不交逾期费。

Payment was received two weeks after it was due; therefore, you will be charged a late fee. 付款逾期了两周，所以你应支付滞纳金。

You will be charged a late fee if the electric company does not receive your payment on time. 如果电力公司没有按时收到你的付款，你将会被收取滞纳金。

If you don’t pay your credit card bill on time, you’ll get socked with a huge late fee. 如果你不按时支付信用卡账单，你就要缴纳一大笔滞纳金。

另外，你的句子中的 check out在此表示“（从图书馆）借”，其后的 all 好像也用得不对，似乎应该有个the，即说成 check out all the books（或改为 check out your books）。你的句子大意是：

Your library card, please. Oh, you have late fees. It comes to 4 dollars. You have to pay it off before you check out all the books. 请出示你的借书证。哦，还有滞纳金。总共4美元。你得把钱付清才能借这些书。