Superbonus, the 2023 tax spreader slows down submission
The intersection of some novelties that have arrived in recent months has created a funnel in this year's 730
by Giuseppe Latour and Giovanni Parente
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The deduction spread for 2023 expenses slows down the sending of the 730/2025. If the solution promised by the Budget Law to unblock the instalment plan over ten years for the 2023 super-bonus continues to be lacking, those who wish to submit their declaration using this chance will still not be able to do so from 15 May. The intersection of certain novelties that have arrived in recent months risks, in short, creating a funnel in this year's 730.
The knot to untie
.The centre of this traffic jam is box 8A of line E41. This box, in fact, must be ticked in the event of an option to spread the use of the 2023 expenses linked to the superbonus over ten years. In this regard, it must be remembered that the spread of the deduction over ten years for the former 110% was first approved for 2022, and then extended to expenses from 2024 onwards, leaving out only 2023.
A gap filled with the last manoeuvre, which, of course, came after the deadline for 2024 declarations had already expired. For this reason, the Budget Law chose the path ofa supplementary tax return, to be submitted by the close of the 2025 declaration season. If, after the supplementary return, more taxes are due, these must be paid, without the application of penalties and interest, within the same deadline. At the moment, however, this opportunity is not yet materially available, because the updated models that will allow it are lacking.
Returning to box 8A, then, the instructions for 730/2025 ask to file the supplementary before crossing it out. In other words, those who want to take the route of extending the instalment for superbonus expenses over ten years relative to 2023 will first have to wait for the publication of the updated 2024 forms, then send the supplementary and pay the difference, and finally proceed with sending this year's declaration.
In this way, within a few days, the taxpayer will make arrangements for two instalments linked to the superbonus. The first of ten will be inserted, with the supplementary, in the 2024 declaration. The second will, instead, be inserted in an ordinary manner in the 730/2025. The spread option will benefit those with lower tax capacity, unable to bear the burden of a spread over four years, and will be irrevocable.

