This is a horrible story -and has wide implications for many people who invested in property ABC but used property XYZ as security.
Many banks didn't name the investment property on loan papers ,especially an overses one, as long as they had security on an established Irish property. The top-up mortgage was much used in the heady days of the property boom.
I know several people who bought properties, here and abroad, with top-up loans and are claiming the interest payments against rental income.
The idea of fighting Revenue and going to Appeals is a daunting one for most of us - especially when Revenue have put in writing their decision, which assumes a senior official has been at work.
I wouldn't be making any assumptions as to the seniority of the person who wrote that letter! People in Revenue who've been in the service since they did their leaving cert and never been promoted, or maybe been promoted once due to length of service rather than any particular competence, routinely write letters. I'd say that letter was written by and EO or HEO in a customer service area, who has got themselves caught up in the same logical circle as you (a layperson) have, based on the 2 sentences you quote below.
Hopefully I can clarify this fairly simply - and the key thing here is that context is everything...!
It does clearly state
"that interest is NOT deductible where the loan is obtained on the security of the premises but is used for purposes other than the purchase etc .... of that premises"
Very clear. And therefore Revenue are correct.
And then the next words say exactly the opposite "it is NOT necessary for the security to be the premises being let for the interest to be deductible".
This is also very clear and therefore Revenue are wrong.)
OK, so bearing in mind that I said context is everything, here is the end of paragraph 1 and the entirety of paragraph 2 of the manual, which is:
"The provisions of section 97(2)(e) TCA 1997 also apply to the purchase of foreign premises. Although rental income from foreign property is assessed as Case III rather than Case V, section 71(4) TCA, 1997 applies section 97(2)(e) TCA 1997 to foreign rental income and provides the same deduction for interest on borrowed money as that allowed in computing Irish Case V rental income.
2. Security for loan
Interest is not deductible where the loan is obtained on the security of the premises but is used for purposes other than the purchase, improvement or repair of that premises. It is not necessary that the security offered should be the premises that is let for the interest to be deductible. For example, where a person obtains a loan that is secured on his or her principal private residence and that is used for the purchase, improvement or repair of a rental premises the interest is deductible."
Now, the first part I quoted there simply means that the same rules for computing rental income/losses apply in relation to a foreign property as an Irish one.
Now lets try to decipher what para. 2 means, but in the context of section 97(2)(e), as this is the legislative provision from which it derives - and at the end of the day, it's what 97(2)(e) says that matters.
Sentence 1:
Interest is not deductible where the loan is obtained on the security of the premises but is used for purposes other than the purchase, improvement or repair of that premises.
This is referring specifically to a particular property, and to a case where someone takes out a loan secured on it, but doesn't actually use the loan on that property. e.g. that celtic tiger-ism of releasing equity from a property in order to upgrade to a BMW X5...
This sentence has no application in the case at hand, except to the extent that it clarifies that there is no way that the interest on the loan in the OP's case can be used as a deduction against the Irish rental property it's secured on. It simply spells out what is common sense - just because you mortgage a property doesn't mean you get relief against the income from that property. (The same principle applies equally to TRS on PPR mortgages incidentally.)
Sentences 2 & 3:
It is not necessary that the security offered should be the premises that is let for the interest to be deductible. For example, where a person obtains a loan that is secured on his or her principal private residence and that is used for the purchase, improvement or repair of a rental premises the interest is deductible.
This is simply clarifying that it doesn't matter what premises is used as security (in cases where there is security used). Again this merely makes explicit what is common sense.
As I said previously, this whole discussion about loans being secured on this property or that property is a complete red herring - Section 97(2)(e) is about as straightforward a provision as you'll find in the Taxes Acts. It makes no mention of security, because that's irrelevant. What's relevant is that money was borrowed and what it was used for.