If you have filed a tax deferral by the due date for filing your tax return (usually 31st of March1), you have the option of changing the tax deferral date to suit your current needs, but no later than the deadline for filing your tax return.
However, it is important to keep in mind that no further extensions are possible after the deadline. From that point on, the last tax deferral filed, and the date stated in, will apply.
Any extension filed after the deadline will not be accepted by the Financial Administration of the Slovak Republic.
1 If 31st of March falls on a weekend or public holiday, the deadline will be postponed to the next working day.