Tax payment in USA?

Question

1=> I understand that part of salary from our pay slip is deducted as tax. How to calculate if its done so.

2=> Income tax and State tax we file every year is always more than the refund we receive. How to understand the best way of filing tax?
If we consult an agent, we found that he will not explain every payment in detail. Is there any web source to do so?

3=> I have heard that a non-resident of US with a dependent spouse will receive higher tax returns at the end of year. What is the % of increase in this scenario? And how should we file tax to get this advantage.

Please explain in detail.

Hi Judy,
That means if both partners are filing for tax deduction of both of their incomes only in that case we get a higher tax return.
Am i correct in this?

Answer 1

In your question 3, there is some truth in it. If your spouse us a resident of the US, Canada, or Mexico, and has a social security number or ITIN, then you can file a joint return, and your taxable income would be lowered because you would have an extra exemption and standard deduction subtracted from your income, so you taxes would be lowered. The amount saved would depend on your income, but could be around $8750 times your tax bracket - if that's 15% you could save $1312 in tax.

Answer 2

www.paycheckcity.com can help you with questions 1 and 2. It's a paycheck calculator website that can give you insight into payroll. As far as #3, that is not true at all. There's no special deduction for that.