“Green” Home Bonus: how to calculate the VAT deduction The Irpef deduction of 50% of VAT for green homes applies to the residual amount after the deduction of the tax credit for the purchase of the first home.

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Emma Potter

The purchase of highly energy efficient homes is encouraged by important tax breaks, including the possibility of deduct 50% of the VAT paid.

On the website of TaxTodaya reader requested clarification on the correct method of calculating the deduction, raising a technical but crucial question for those who benefit from these benefits.

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Reader’s question

A reader asked a very interesting question, which highlights a concrete case of application of the house bonus “green”, particularly relevant for those who sold and repurchased their first home in the same year.

Specifically, the reader asks:

“In 2023 I purchased a house (new first home) in energy class A++ from a builder. In declaration 730/24 I indicated in the form of a tax credit the VAT paid for the purchase of the (old) first house, sold previously but in the same year. Since all the conditions are in place to take advantage of the 2023 green house bonus, I ask if the correct amount to be deducted in line E59 of 730 is the entire sum of VAT due or the difference between the latter and that reported in Table G as tax credit. Or the one actually paid?”

The question is of great interest, because it highlights a practical case in which two distinct tax benefits are intertwined: the tax credit for buying your first home and the Irpef deduction of 50% of the VAT paid for the purchase of green homes.

The main question raised by the reader is whether the deduction applies to the entire amount of VAT due or only to the part actually left to be paid, after subtracting the tax credit.

This type of doubt is common, especially when taking advantage of multiple benefits related to the same purchase, and requires a clear answer to avoid errors in the tax declaration.

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The response of the Revenue Agency

The Revenue Agency provided a clear and detailed response, referring to the relevant legislation and previous interpretative indications.

There Budget Law 2023 (article 1, paragraph 76, of law no. 197/2022) introduced an Irpef deduction equal to 50% of the VAT paid on the purchase of residential real estate units in energy class A or B. This concession concerns purchases made between 1 January 2023 and 31 December 2023 by construction companies or from collective savings investment undertakings (UCI).

The Agency then specified that, for those who also benefit from the tax credit for buying your first homethe calculation of the deduction must follow a precise logical order:

  1. Determine the tax credit resulting from the sale and repurchase of your first home.
  2. Calculate the VAT deduction actually remained dependentthat is, after having deducted the amount already recovered in the form of tax credit.

This interpretation is consistent with what has already been expressed in circular no. 7/2018 (page 270), which regulated a similar benefit valid for purchases made by 31 December 2017.

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How to apply the deduction in 730

For taxpayers who fill out the form 730/2024the amount to be indicated to line E59 is that of the VAT actually incurred, i.e. the residual value net of the tax credit reported in the Framework G. This clarification avoids the overlap of tax benefits and guarantees compliance with regulatory provisions.

This benefit represents an important incentive for those who invest in highly energy efficient homes, contributing both to the reduction of consumption and to compliance with environmental sustainability objectives. However, attention to the correct compilation of the tax return is essential to avoid errors that could compromise access to benefits.

Do you still have doubts about filling out your 730 or how to calculate benefits? Feel free to consult an expert or find out more on the Revenue Agency website.