Need I pay the whole amount now?

我必须现在全部付清吗？

《牛津词典》

People who earn under a certain amount are not liable to pay tax.

收入低于一定数额者不必纳税。

《牛津词典》

I'd prefer to pay regularly in small amounts, rather than have a large amount to pay in one go.

我宁愿定期小额付款，也不愿一次性大额支付。

youdao

"This really isn't new. There has been a tremendous amount of agitation among workers for higher pay for years."

VOA: special.2010.06.18

That's not the actual amount that they pay because the tax law is so complicated and there are so many loopholes.

但那并不是公司实际支付的税额,那是因为税法非常复杂并且有很多漏洞

耶鲁公开课 - 金融市场课程节选

Suppose someone has a contract that promises to pay an amount each period over a number of years.

假设某人有一份合约,承诺在数年内的不同时段内分开支付

耶鲁公开课 - 金融市场课程节选

They manage members of the insurance companies, build the lists of approved drugs for manufacturers and reimburse the retail pharmacies for the difference between the true cost of a drug and the co-pay amount that a customer of a retail pharmacy plays.

FORBES: Berkeley Takes the Express and Wins BIG at Ross Stock Competition

We all pay some amount to make sure we are covered for the risk.

FORBES: The Whole Truth About Wisconsin Individual Health Insurance Rate Expectations Under Obamacare

All users of the system, ATA says, should pay an amount proportional to their use of the system.

FORBES: The Skies Get Unfriendly