Schedule list

Tax Assistance

Tax assistance centres (CAF) and qualified professionals deliver to the taxpayer a copy of the tax return and the tax settlement statement (Form 730-2026) for returns submitted from 1 June to 20 June 2026.

Workplace safety

Submission to INAIL of the application for financing projects to improve workplace safety conditions, under the ISI 2025 call, by companies and Third Sector entities.

Agricultural contributions

Agricultural employers must submit contribution declarations based on data relating to employees employed in the previous month. 

Withholding taxes – contracts 

Obligation for contractors and subcontractors to transmit the nominal list of the workers employed and the receipts evidencing payment of the withholdings applied to their workers in the previous month. 

Mandatory communications – seafarers

Deadline for submitting telematic notifications relating to hires and terminations in the previous month for seafarers embarked or disembarked.

Mandatory communications – agency workers

Obligation to submit telematic notifications to the Employment Centre for all relationships established, extended, converted and terminated in the previous month with agency workers, including the activation or extension of remote work. The notification must be made using the UnificatoSomm form.

Enasarco contributions 

Payment of social security contributions for the 1st quarter of 2026 relating to agents and representatives. 

Digital platforms

By 20 May 2026, it is necessary to notify self-employed relationships established in the previous month through the intermediation of a digital platform.