This graduate thesis provides an overview of Croatian legislation and its changes in the field of tax installment measure of tax debt, referring to the legal changes that came into force before and after 2015. The measure of installment repayment provides taxpayers to settle their overdue tax debts incurred on the basis of taxes, contributions and other public duties in monthly installments within the deadline prescribed by law, thus achieving adaptability for taxpayers when fulfilling their tax obligations, in accordance with their economic strength and capabilities. Since the introduction of the General Tax Act of 2001, installment repayment measures have been covered by regulations that have, among other things, been introduced for the purpose of reducing the consequences caused by the economic crisis, and some of the regulations have been changed several times due to unclear provisions. After 2015, the introduction of pre-accession process under the Bankruptcy Act and the administrative contract according to the General Tax Act proved to be a good basis for resolving tax debts.