All I can say is I've advised everyone on why they paid more with their return. Typically, when they cash out or early withdrawal of retirements they only take out the ten pct penalty plus ten percent for taxes, never considering the multi bracket jump.
Other times it's a married couple and both are claiming the exact amount of dependents and both are working.
Pub 15a outlines the with holdings by the number of exemptions claimed. The IRS likes a net zero game, you don't owe them and they don't owe you. It's up to you to ensure you have the proper withholdings. You can write a check to the Treasury to apply additional funds to your account.
As far as the accusations of getting info from the internet, I referenced IRS pub 17. You can review the material yourself.
Other times it's a married couple and both are claiming the exact amount of dependents and both are working.
Pub 15a outlines the with holdings by the number of exemptions claimed. The IRS likes a net zero game, you don't owe them and they don't owe you. It's up to you to ensure you have the proper withholdings. You can write a check to the Treasury to apply additional funds to your account.
As far as the accusations of getting info from the internet, I referenced IRS pub 17. You can review the material yourself.