Slovakiet er medlem af tre af de fire ordninger om ikke-spredning af masseødelæggelsesvåben og er kandidat til medlemskab af den fjerde.
Assuming full application of the own resources system, the new members' contributions to the Community budget should, in terms of total GNP and VAT resources (taking account of the capping rules applying to VAT), be close to the proportion of the Union's GNP they account for, which in Slovakia's case is about 0.2%.