It's okey to pay later.

以后付钱也行。

《新英汉大辞典》

Charge now, pay later.

现在先记在账上，以后再付款。

youdao

And they can travel now and pay later by using their credit CARDS.

他们可以先旅行然后再用信用卡付帐。

youdao

California's finances have become so bad, this month the state began to buy goods and services with promises to pay later.

VOA: special.2009.07.31

Two years later, an American group was formed to raise money to pay for a pedestal to support the statue.

VOA: special.2009.06.29

A few months later, members of Congress voted a pay raise for themselves and the executive branch of government.

VOA: special.2010.02.25

The coalition is expected to announce its policies on executive pay later this weekend.

BBC: Labour calls for 'responsible and better' capitalism

Now all drivers are being told not to stop and to pay later.

BBC: Golden Gate: Electronic tolls for San Francisco bridge

Eventually Blue Cross and Medicare realize it is politically feasible AND cheaper to detect than to pay later, special fixed interests be damned.

FORBES: How To Solve The Health Care Crisis