730 pre-filled: deadline and instructions for submitting changes online

Race against time for those who want to have the Irpef refund in their July paycheck. The pre-filled declaration, in fact, in this case must be sent by May 31st, but changes and sending will only be possible from this date. Until that moment, all you can do is consult the data and check whether or not you can enter expenses, or if the missing items are non-deductible.