Is the tool for the official certificates currently valid, or should we wait for a specific date?
Yes, it is valid.
Not at this stage, there is no such option.
We would like to receive them with the December salaries or at the latest by January, so that we can reflect them in the report under Article 73.6.
It would be ideal to submit it with the December cycle, but if there are amounts that are determined later, it can also be done at the beginning of January.
No, tax relief can only be applied through the employer who conducts the annual personal income tax reconciliation, and this must always be the primary employer. If the taxable base is insufficient and you have other income that was not included by the first employer, then you must submit a [...]