<prompt> Human: I am buying a home in CA for 650k. I also have saved exactly 650k in cash. I am tempted to put 50 down, but is that wise? Someone else told me to only put 100k down and the rest invested into an asset managemt group.Im very torn on what I should do. I have a job that pays 130 year, but its rather unstable at the moment, although I do have a CS background and can probably find work fairly quickly. I tend to be less risky because I want to be able to continue to make payments even if shit hits the fan. Initiallly I was planning on keeping 5 years of savings in an emergency fund, but thats probably overdoing it...Assistant: Thanks for the insights everyone! Where Im confused is finding the balance between an appropriate monthly payment 30 of take home pay and a smart amount down consensus sounds like 20.Problem is their is a contradiction between the two. At 20 down, total payments would be around 50 of take home pay.  <response>: How about figuring out whatd take to get mortgage payments down to 25-30 of take-home pay 30-35 total housing cost after taxes, utilities? Or some other goalpostOr, if you figure your 130k job is unstable, what could you end up earning in a fall-back job? Take that number, and work out your ideal mortgage payment based on that.Yeah, the argument for 20 is solid. But, you can also make a cashflow argument, and a being conservativesafe argument. Ultimately you need to be able to afford the house - and you need to be able to sleep at night. Its less about numbers and more about personality. Know thyself : 