The statutory interest is not always a given, but when making your declaration do you not have to apply it or do revenue calculate whether they will apply that to the penalty %
Depending on the total tax due or taxable income not disclosed, engaging a professional to put your case forward and ensure you include all allowable expenses may pay for this cost and give piece of mind, for future returns you will have to make.
If you wish your disclosure to be qualifying, the tax and interest must be calculated by you. Otherwise it's not a qualifying disclosure and you've lost the protections offered by the disclosure. Revenue don't have to accept the disclosure if they feel it's not a true disclosure.
Section 1077F TCA 1997 defines a qualifying disclosure as a disclosure of complete
information in relation to, and full particulars of, all matters occasioning a liability to tax that
is made in writing, is signed by or on behalf of the taxpayer and is accompanied by:
• A declaration, to the best of that person’s knowledge, information and belief that all
matters contained in the disclosure are correct and complete; and
• A payment of the tax and interest on late payment of that tax.
Furthermore, the category of default determines the scope of liabilities which must be included in the disclosure in order for it to be considered qualifying.
Deliberate Behaviour: All liabilities to tax, duty and interest, in respect of all taxes and periods, where previously undisclosed.
Careless Behaviour: All liabilities to tax, duty and interest in respect of the relevant tax and periods that are the subject of the disclosure.
Finally, a disclosure is not a ‘qualifying disclosure’ if:
The disclosure is ‘incomplete’; or
The disclosure is not made in writing.