Oklahoma 1099 Quarterly Tax Calculator
Built & reviewed by Nandu Kannan · Overtime rules cited to primary statutes
Estimate your 2026 quarterly taxes as a self-employed / 1099 worker in Oklahoma. Enter your net profit to get self-employment tax, federal income tax, Oklahoma state tax, and the four estimated payments with due dates.
| Quarter | Due | Amount |
|---|
| Self-employment tax (15.3%) | $0 |
| Federal income tax | $0 |
| State income tax | $0 |
2026 estimate. SE tax includes the half-SE deduction + simplified 20% QBI. State tax estimated on profit. Pay via IRS Form 1040-ES; states have their own estimated-tax vouchers. Due dates: Apr 15, Jun 15, Sep 15 (2026), Jan 15 (2027). Not tax advice.
How 1099 quarterly tax works in Oklahoma
Self-employed workers pay the full 15.3% Social Security + Medicare (the "self-employment tax") on 92.35% of profit, plus federal income tax, plus Oklahoma state income tax. The IRS expects this in four estimated payments rather than a single April bill. Oklahoma’s brackets are so compressed that the 4.75% top rate kicks in barely above $7,000 of taxable income for single filers.
Frequently asked questions
How much should I set aside for taxes as a 1099 contractor in Oklahoma?
It depends on profit, but as a rough guide a single filer with $60,000 of net 1099 profit in Oklahoma owes about $13,924 total for 2026 — roughly $3,481 per quarter. That covers 15.3% self-employment tax, federal income tax, and Oklahoma state income tax. Use the tool for your numbers.
When are 2026 quarterly taxes due?
Federal estimated taxes for 2026 are due April 15, June 15 and September 15, 2026, and January 15, 2027. Pay federal with IRS Form 1040-ES; most states have their own estimated-tax vouchers with similar dates.
What counts as profit?
Your 1099 / self-employment income minus legitimate business expenses (software, equipment, mileage, home office, etc.). Self-employment tax and income tax apply to profit, not gross revenue — so tracking deductions directly lowers what you owe.
Does Oklahoma charge state income tax on 1099 income?
Yes. Oklahoma’s brackets are so compressed that the 4.75% top rate kicks in barely above $7,000 of taxable income for single filers. The tool estimates it on your profit.
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