Tax, CGIL alarm: 730 at risk due to errors in single income certifications
The trade union Cafes denounce the presence of errors in the calculation of the new tax wedge cut. Report already sent to the Economy and still awaiting reply
by Marco Mobili and Giovanni Parente
Key points
The alarm comes from the CGIL twenty-four hours before the debut of the precompiled 2026: 730s at risk due to errors in the single certifications. According to a letter sent on 21 April to Economy Minister Giancarlo Giorgetti and Deputy Economy Minister Maurizio Leo, 'it has emerged that a significant number of tax withholding agents have issued employees with Single Certificates 2026 that contain incorrect or absent data on the nature of employment income (Article 49, paragraph 1, of the Tuir), useful for verifying the right to the sum that does not contribute to the formation of income ("additional sum") or to the further deduction for employment income'. In practice, errors were allegedly made by the tax withholding agents in indicating the new items characterising the cut in the tax wedge applied from 2025.
CAP monitoring
Now, in a press note, the confederal secretary of the CGIL, Christian Ferrari, and the president of the national consortium Caaf CGIL, Monica Iviglia, explain that that letter has not yet been followed up with a reply and the problem risks having a effect on the 730 precompiled forms that will be made available from the afternoon of 30 April in the reserved area of the Inland Revenue website. The errors in the Single Certifications emerged through the constant monitoring of the organisation's territorial structures and its Tax Assistance Centres.
Building societies, some public administrations and private enterprises
According to the alarm raised by the CGIL, among the substitutes who have allegedly committed errors are 'the building insurance companies that have paid the Ape (Anzianità professionale edile), some public administrations and quite a few private companies'
In the Single Certificates in question, 'the income from employment or their substitute allowances has been certified by the substitute as income from employment that is not included in income from employment pursuant to Article 49(1) of the Consolidated Income Tax Act'.
The cascading errors on 730
As the CGIL note explains, 'this is an extremely serious error because these amounts, we must reiterate, are fundamental in determining the calculation of the additional sum and the correct deduction provided for by the Budget Law 2025, economic benefits that the current architecture of the model 730 does not allow to recover in the declaration if the starting data of the certification is incomplete'.



