Thank you! I started using the W-4 calculator (in TurboTax) to try to figure this out. He just seems to be losing a lot out of his paycheck, but we don't want to incur a balance due at the end of the year. I will try the IRS tool you provided.
As for the state filing, it is always a tricky process for us since he is in the military. I am a Montana resident, but he is an Ohio resident. However, he is becoming a Montana resident this year (hopefully making filing taxes easier and joint moving forward). TurboTax allows me to specify that his income is military and separate the states accordingly.
