TSH in turn stimulates the thyroid to grow and to make thyroid hormones. The secretion of TRH and TSH is elegantly regulated by the brain, and is based in large part on the blood levels of thyroid hormone. The more thyroid hormone the brain detects in the blood, the less TRH and TSH are secreted.
The income tax withholding formula for the State of Oklahoma will include the following changes: 1  The flat tax rate on supplemental wages will change from 5.25 percent to 5.00 percent. 2  The Single and Married withholding tables will increase.
Oklahoma Income Tax. Similar to the federal government, Oklahoma has an income tax that applies higher rates to higher income levels. The rates range from 0.05% to a top rate of 5.25%, based on the income brackets shown below. Income Tax Brackets.