Too Embarrassed To Ask: what is a marginal tax rate?

Tax comes in many different forms and people pay it at different rates, so what is a marginal tax rate?

[@kellywatchman6724]

Mr Arthur Harold is the best, recommending him to all beginners who wants to recover losses like I did

[@davidwelty9763]

45% top tax rate is HIGH! And people say the wealthy don’t pay their fair share.

[@bogdar2019]

Catch that CH4! Sell it!

[@sameeshoncloud9]

Presenter looks like harry kane😂

[@kamalashgovindaraj5245]

Thank you.