Sounds like you may want to consider first whether you really want to move. Your equity gap could be worse. Some considerations; if you pay off some of the mortgage pay the variable piece first not the tracker, renting sounds easier than it is, if you rent you may be liable for clawback of stamp duty, this could be significant this depends in the time you bought the property, check out revenue.ie, prices may fall further and the quity gap is likely to increase, and the cost of you're mortgage is likely to increase. If you plan to move eventually if you can sell the house factor in further proce reductions on both sides, if the price of the house you buy is higher, you might get an advantage, but beware of catching a falling knife, its safer to buy on the way up than on the way down.