Is DIRT due on interest earned from a loan

I am wondering is DIRT due on interest earned from a loan?

For example Person (A) lends Person (B) €20,000. (B) pays back €30,000 to (A) over 3 years including interest of €10,000.
Does (A) pay DIRT on this €10,000 euro?

Thanks

No.

The borrower should withhold 20% tax and the lender will pay Income Tax at the marginal rate, PRSI and USC on the interest received.

Joe_90 said:

No.

The borrower should withhold 20% tax and the lender will pay Income Tax at the marginal rate, PRSI and USC on the interest received.

Click to expand...

Thanks for the reply. Forgive me if it's a stupid question but why would the borrower withold 20%? Thanks