As verbs the difference between paying and spending
is that paying is present participle of lang=en while spending is present participle of lang=en.
As nouns the difference between paying and spending
is that paying is payment while spending is an amount that has been, or is planned to be spent.
paying
English
Verb
(head)
Noun
(
en noun)
payment
* Philip H. Wicksteed, The Commonsense of Political Economy
- It brings his payings into close and convenient correspondence with his usings of commodities, and different branches of his expenditure thus become easily comparable.
spending
English
Verb
(head)
Noun
(
en noun)
An amount that has been, or is planned to be spent