I can ballpark that you would need somewhere in the range of a $5000/mo gross income to qualify for a $300k mortgage. HOWEVER, there are too many variables that affect a loan to be able to give a 100% accurate answer.... depends on the type of loan you are getting (conventional, FHA, USDA, etc?), the amount of down payment you are putting down, your credit profile (while you have a very high credit score, lender's also look at how many credit lines you have, how long you have had credit, etc), what the monthly payments of your other debts are, your employment history, etc. Your best bet is to sit down with a lender to get pre-qualified. Most sellers will not even consider your offer to purchase unless you have a lender's letter verifying your ability to secure a mortgage loan. Be prepared to supply your year to date paystubs, your previous two year's w-2s/tax returns, and copies of your asset accounts showing that you have the $'s necessary to make your down payment and closing costs. If you don't have a lender in mind, I can recommend some local lenders who can help you out.