It's generally advisable to sell your current property before buying a new one. Selling first ensures financial clarity, allowing you to determine your budget for the next purchase. This reduces the risk of carrying two mortgages simultaneously, easing financial strain. Moreover, selling before buying often strengthens your negotiating position, as you're not contingent on selling to fund the new purchase. However, individual circumstances vary, and consulting with a real estate professional can provide personalized guidance based on market conditions and your specific situation.