JAKARTA (REUTERS) - Indonesia will announce a second fiscal stimulus package this month as part of efforts to cut a ballooning current account deficit, local media reported.

The government released a package of fiscal measures in August, when waning investor confidence in Indonesia was hammering its financial markets.

However, it has yet to make public details of some of those measures, including a promised new "negative investment list", setting out which areas are closed to foreign investment.

The rupiah has continued to fall and is now Asia's worst performing currency, having lost almost 17 percent of its value against the US dollar since the start of the year.

Analysts warn that when the US Federal Reserve does finally start its expected stimulus tapering, which was delayed in September, Indonesia could again see a rush funds leaving the country and even sharper falls in the rupiah.

"There will be a (new) regulation so that exports could be bigger while imports would be controlled," the Jakarta Globe daily on Tuesday quoted the head of the finance ministry's fiscal office, Bambang Brodjonegoro, as saying.

Some of the measures announced in August included an increase in luxury tax on certain imports and planned incentives for labour-intensive industries to prevent layoffs.

The current account deficit widened to 4.4 percent of gross domestic product (GDP) in the first half of the year.

The government will announce trade data at around 0330 GMT (11.30am Singapore time) for August which should help indicate whether the current account deficit is narrowing.