How does Revenue treat late payment of CGT?

[Tuttlinghorn]

How does revenue typically deal with late payment on CGT by an individual ? Presumably a mandatory penalty - any idea how much % or how it’s determined ?

eg an amount due for payment pre Oct 2019 based on sale of shares during 2019 ... but some dope realises they didn’t actually pay it when it now comes round to filing their 2019 taxes

 

[jpd]

They'll be delighted to get it - I wouldn't worry too much unless it's for an inordinate amount

 

[Gordon Gekko]

The key thing is not to miss the date for filing the return.

That’s to avoid a penalty of either 5% or 10% depending on how late the return is.

The late payment itself attracts interest on a daily basis at an annualised rate of circa 8%.

There are Covid-related concessions where a lower rate or even nil rate applies; you might be able to spoof your way into those.