Quarterly Estimated Tax Calculator — Missouri (2026)
If you earn income in Missouri without withholding — freelancing, contracting, rentals, dividends — the IRS expects payment four times a year, not once. This calculator turns your expected 2026 net profit into a per-quarter number covering self-employment tax, federal income tax and Missouri state tax. Missouri uses a progressive income tax with 8 brackets running from 0.00% up to 4.70%, applied after a state standard deduction of $16,100.
Missouri Quarterly Tax Calculator
Gross 1099 income minus business expenses.
2026 due dates and safe harbor
Federal estimated payments are due April 15, June 15, September 15 of 2026 and January 15 of 2027. You avoid penalties by paying either 90% of the current year's liability or 100% of last year's (110% if prior-year AGI exceeded $150,000) — the safe-harbor rule.
Missouri runs its own estimated-payment schedule that usually mirrors the federal dates. On $90,000 of net profit the Missouri portion alone is about $751 per quarter.
Underpayment penalties
The IRS charges interest-style penalties per quarter you fall short, currently around 7–8% annualized. Paying late in the year does not fix an early-quarter shortfall unless you use the annualized income method on Form 2210.
Irregular income is common in logistics work around Kansas City: if Q1 is slow and Q4 is huge, the annualized method usually beats four equal payments.
Paying as a Missouri taxpayer
Pay federally through IRS Direct Pay or EFTPS, and Missouri through the state revenue department's online portal — keep confirmation numbers for both.
Kansas City and St. Louis levy a 1% earnings tax on residents and on non-residents who work in the city.
Local and payroll taxes Missouri adds on top
Kansas City and St. Louis each levy a 1% earnings tax on wages earned in the city. That deduction sits outside the federal and state income tax lines, so build it into your own budget on top of the numbers above.
Kansas City and St. Louis levy a 1% earnings tax on residents and on non-residents who work in the city.
Nobody withholds these for you when you are self-employed in Missouri. Local wage taxes, city business licences and gross-receipts style levies are yours to register for and remit alongside your quarterly federal and state estimates.
Working across a state line from Missouri
Missouri has no income-tax reciprocity agreements, so if you live here and work across a state line you generally file a nonresident return in the work state and claim a credit at home to avoid double taxation.
Remote and hybrid work complicates this further: most states tax income where the work is physically performed, so a Kansas City resident spending part of the year at a client site in Kansas may owe a nonresident return there. Keep a day-count log if you split time between states.
The rest of your Missouri tax bill
Missouri charges a 4.225% state sales tax, homeowners pay an average effective property tax of 0.98% of market value, and the minimum wage in force during 2026 is $15.00 an hour.
Local rates lift combined sales tax to about 8.4% on average.
Income tax is only one part of a state's take. Missouri recovers revenue through sales and property tax as well, which is why headline income tax rates alone are a poor guide to how far a salary really goes. Missouri exempts Social Security and offers public pension and private pension deductions subject to income limits.
Missouri vs Kansas on the same salary
On a $90,000 salary, a single filer keeps about $68,842 a year in Missouri against roughly $67,406 in Kansas — a difference of $1,437, or $120 a month.
Effective combined rates are 23.5% in Missouri and 25.1% in Kansas. Set that gap against living costs: index 88 here versus 87 there, with property tax at 0.98% and 1.34% respectively.
Missouri income tax brackets 2026 (single filer)
| Taxable income | Rate |
|---|---|
| $0 – $1,273 | 0.00% |
| $1,273 – $2,546 | 2.00% |
| $2,546 – $3,819 | 2.50% |
| $3,819 – $5,092 | 3.00% |
| $5,092 – $6,365 | 3.50% |
| $6,365 – $7,638 | 4.00% |
| $7,638 – $8,911 | 4.50% |
| $8,911 and up | 4.70% |