Nov 2 (Reuters) - The Slovak central state budget showed a deficit of 1.08 billion crowns ($37.96 million) in the January-October period, compared with an 5.11 billion deficit for the same period of 2005, the finance ministry said on Thursday. CENTRAL STATE BUDGET Jan-Oct/06 Jan-Oct/05 FY 2006 PLAN (SKK bln) revenues 240.578 214.420 272.717 expenditure 241.658 219.535 330.185 balance -1.080 -5.115 -57.468 - The budget showed a deficit of 5.134 billion crowns for January-September. - The state budget traditionally shows surpluses or small deficits in the first months of the year, before state spending rises late in year and budget shortfall widen. BACKGROUND: - The central budget showed a deficit of 33.886 billion crowns for the whole of 2005, much less than the approved ceiling of 61.524 billion. - Slovakia introduced a flat 19 percent tax rate in 2004 as a part of an overhaul of its complex tax system. - The tax system reform brought higher-than-expected revenues last year and the finance ministry projects a further increase in tax revenues in 2006. - The central state budget data are calculated according to local cash-flow methodology as the ministry publishes the key public finance statistics according to the European Union's ESA 95 standards annually. - The cash-flow methodology takes in revenues and expenditures when money arrive or leave the state accounts, while the accrual ESA 95 method includes revenues and expenditures immediately as they occur. - The central budget is the major part of public finances. The overall public finance deficit ceiling was set at 4.2 percent of GDP for 2006, including the cost of pension system reform. - Slovakia plans to slash the fiscal deficit to 3.0 percent of GDP in 2007 to meet the criteria for euro adoption. - Slovakia joined the Exchange Rate Mechanism 2 (ERM-2), a form of waiting room ahead of euro adoption, in November 2005, with the crown's central parity rate set at 38.4550 to the euro. MARKET REACTION: - The market shows no immediate reaction to the data. The crown trades at 36.300 per euro as of 0930 GMT, in sight of its all-time high of 36.250 hit on last Friday. - For LIVE Slovak economic data releases, click on......<ECONCZ> - Schedule of upcoming indicator releases............<SK/ECON09> - Summary of short-term economic data forecasts......<SK/ECON04> - Stories on Slovak currency moves........................[SKK/] - Slovak speed money guide ..............................<CZK/1> - Slovak benchmark state bond prices .................<0#SKBMK=> - Slovak forward money market rates ....................<SKKFRA> ((Reporting by Martin Santa, Editing by Alan Crosby; RM: martin.santa.reuters.com@reuters.net; Email: martin.santa@reuters.com; +421-2-5341-8402)) ($1=28.45 Slovak Crown) Keywords: ECONOMY SLOVAKIA BUDGET