Safety first. On an 18-month horizon this is your down payment, and the priority is that the money is intact and available when you're ready. A plain checking account steadily loses ground to inflation, so park the savings somewhere that pays interest while staying liquid and low-risk. The usual candidates: - High-yield savings accounts - Money market funds - Short-duration Treasuries, such as a 12-month or 2-year note Short Treasuries carry a small bonus: if interest rates fall while you hold them, their prices rise, which can add a little on top of the yield. Don't count on that part. Steer well clear of anything that can be down 20% right when you need the cash. On this timeline, stocks and especially crypto are the wrong tool, because a dip you can't wait out can shrink or delay the purchase itself. Exact yields move around, so compare current options when you park the money rather than anchoring on a rate you heard. And if part of the question is how large a purchase this savings supports, that's the free Roadmap conversation: about 20 minutes where we run your real numbers.