An EU source cited by Reuters says Italy’s budget plan is likely to be seen as a “serious violation” of EU rules and be rejected. That’s exactly the kind of thing that will drive a country out of the eurozone, sooner or later.

Italy’s 2015 budget is likely to be judged in violation of EU rules and rejected unless Rome adopts last minute changes, an EU source told Reuters on Tuesday.

Italy’s budget blueprint adjusts the structural fiscal deficit – adjusted for the business cycle and one-off factors – by just 0.1 percent of gross domestic product, a cut considered far too modest by the Commission, which wants a correction of “at least 0.7 percent,” said the source.

The big shortfall in what Italy is proposing is “a serious violation” of the Commission’s recommendations, the source said, and could lead to Italy being put on the Commission’s blacklist of countries out of line with EU fiscal rules.

The source said the Commission had still not received Italy’s definitive budget plan, which will be signed off by the Cabinet on Wednesday. Italian Economy Minister Pier Carlo Padoan confirmed on Wednesday the budget would correct the structural deficit by just 0.1 percent.