If I enter our information separately we both get a refund. I get 3400.00 one and he gets a 14900.00. If combined I owe 249 and he drops to 10,900 can you tell me why?

[TurboTaxEsther]

When you each prepare your return individually, you likely did not enter the other spouse's income. This will create a spousal credit of over $11,000 which you do not qualify for. Try entering each other's income to the ones you prepared apart and they will come out the same.