If you are referring to the issue of stamp duty clawback, see [broken link removed].
The 5 year period was reduced to 2 years. Subject to confirmation of this from your legal advisors, you should be in a position to rent it now ( market permitting ) .
Once you have identified a tenant/tenants ( in no particular order )
1) Register tenancy with www.prtb.ie
2) Remember the non-principal private residence levy www.nppr.ie
3) Inform insurer that property now rented
4) Cancel TRS www.revenue.ie . mortgage int allowable against rental income ( at 75% for 2009 ) and only if property registered with PRTB ( see 1. )
5) If letting furnished, put realistic values on the furnishings/fixtures/fittings/equipment as these are allowable against income for tax at 12.5% p.a.
6) You may need to separately register with Revenue (Form TR1) for income tax non-PAYE returns ( unless you are already registered through a self-employment or company directorship) . However if net income initially is small or negative you may be able to do this on your normal PAYE return F12 if you are a PAYE taxpayer. Either way you must return income & expenses annually with Revenue.
7) Keep all receipts for costs. Insurance, prtb etc. are allowable costs against tax.