Our lean is to keep saving and stay liquid, especially with a future rental and a next purchase in the picture. But your numbers decide. Compare your mortgage's after-tax cost against what savings can safely earn. When cash in the bank earns more than the loan costs you, extra payoff is the losing move on paper. When it earns less, payoff looks better. That gap flips as rates move, so revisit it rather than treating the answer as permanent. The bigger factor is liquidity. Money you put into the condo is hard and expensive to get back out: a refinance or home equity line means qualifying, an appraisal, and cost. Money in savings stays reachable. With a long runway to retirement, we lean toward keeping cash working, unless your retirement accounts and emergency fund are already well fed. And since your plan is to rent the condo out and buy the next place, flexibility for that purchase matters even more. There is no single right answer here. Weigh your own comfort. Our bias runs toward saving and investing over rushing the payoff.