<prompt> Human: Hi rpersonalfinance,My wife and I 22 25 respectively just received 15k and we wanted to pick your brains to see what we should do with it.A little background: Combined, we have credit card debt of 15,000 15 interest. Myself just under 6,000 and her 9,000. Shes going through a Masters program and has student loans of 50,000 not sure of her interest rates. Im hovering at 5,000 only 3,000 of it has interest of 7.We both have good, steady jobs where we are happy with a combined income of 80,000. Cost of living is around 3,200month where we live. Im including car payments, utility billing, rent, groceries, eating out, costs for animals.In our 5 year plan, wed like to purchase property and build a 2 story barn with an apartment upstairs where we can keep our 2 horses and live. Well rent out the other 2-4 stables to horse owners for 250month each. In our 10 year plan, we see 2 kids maybe 3 because accidents happen, a house on that same property and renting out the barn apartment or keeping it as a guest home.Weve considered the following:Put it all in savings and let interest accrue - eventually use it for a propertybarn-apartment down payment.Use it to pay off credit cards over time so our credit gets a nice boost.Were both interested in hearing what else your experience would suggest.Thank you in advance for reading this post.TL;DR Just got 15k, not sure if we should save it or use it to pay off debt over time.  <response>: The clear financially best answer is to pay that credit card off immediately in 1 clear stroke. Investing it is pointless bc it would be very difficult pretty much impossible to get a guaranteed 15 return on your money. So even if you were getting 8 in the market, youd be paying 15 so you are actually getting negative 7Only caveat to all of this is your emergency fund. You should probably have at least a few months worth of expenses saved up. So you might want to say put 7500 on the credit card and 7500 in the bank for emergency fun. 