After you file

It definitely sounds wrong but in the opposite manner. I am concerned your full income is not showing for the calculations. If it is your gambling income doubling, go back through the OK program and see if you marked an amount to be taxable in one of the several places you have an opportunity to enter information. 

OK is among the majority of states that tax a nonresident or part-year resident using apportionment/ allocating the tax. The full income from everywhere is reported.

1. OK will look at your total family income for the year and determine the tax on that amount. 
2. Then, they look at what percentage of the income was actually from OK.
3. OK multiplies the percentage of OK income times the OK tax.

For example:

• OK tax on your federal income is $8,000
• But only 10% of your income was earned in OK
• OK tax liability will be 10% of $8,000 or $800.

 Let me get you to preview your return and check.

• If you are using the online version:
  1. go to Tax Tools,
  2. then select Tools,
  3. select View Tax Summary,
  4. on the left side, select Preview My 1040.
• In the desktop program, switch to forms mode.

Take a look at the 511NR:

Line 6 is OK source income - your gambling winnings

Line 7 is all income earned

Line 9 is income after adjustments - probably all of your income earned everywhere

Line 13 taxable income after OK deductions and exemptions

Line 14 tax on line 13 income

Line 17 shows OK amount and federal amount create your OK percentage of income

Line 18 is the OK percentage times OK tax