Missouri Sales Tax Calculator
Missouri charges a state sales tax of 4.225%, plus local taxes averaging 4.22%, for a combined average of 8.44%.
- Price before tax
- $100.00
- Sales tax (8.44%)
- $8.44
- Missouri state portion (4.225%)
- $4.23
- Average local portion (4.22%)
- $4.22
- Total
- $108.44
Rates shown for Missouri are effective January 1, 2026, from the Tax Foundation. The local figure is a population-weighted average — your city or county rate may be higher or lower, so enter your exact local rate above when the amount has to be right. This is a calculator, not tax advice.
How it works
- Choose whether you are adding tax to a price or removing it from a total you already paid.
- Enter the amount. The rate is pre-filled with Missouri’s combined average of 8.44% — replace it with your exact city or county rate for an exact figure.
- Read the tax amount and total below. Everything updates as you type.
Frequently asked questions
- What is the sales tax rate in Missouri?
- Missouri charges a state sales tax of 4.225%, plus local taxes averaging 4.22%, for a combined average of 8.44%. That combined figure is above the national average of 7.53%, ranking Missouri 12 out of 51 when the states and the District of Columbia are ordered from highest to lowest. Rates are effective January 1, 2026 according to the Tax Foundation.
- Why might my receipt in Missouri show a different rate?
- Because 4.22% is an average, not your rate. Local sales taxes are set by counties, cities and special districts, so two towns an hour apart can differ by a percentage point or more. Sales tax is charged based on where the sale takes place, so use the exact combined rate for that location — type it into the rate box and the calculator uses it instead.
- How do I work out the pre-tax price from a total?
- Switch the calculator to “Remove tax from a total”. It divides by 1 plus the rate rather than subtracting the percentage, which is the step people usually get wrong. At 8.44%, a $100.00 total does not contain $8.44 of tax — reversing the percentage is not the same operation as applying it.
- Is everything taxable in Missouri?
- No state taxes everything. Groceries, prescription drugs, medical devices and certain clothing are commonly exempt or taxed at a reduced rate, and the details vary a great deal from state to state. Services are treated very differently again. For a specific purchase, check with the Missouri tax authority — this calculator applies whatever rate you give it and does not know what is exempt.
- Is this tax advice?
- No. It is a calculator with published average rates pre-filled as a convenience, effective January 1, 2026. Rates change, local rates vary within a state, and exemptions are specific to what is being sold. For filing, remitting or anything with money at stake, confirm the rate with the state revenue department or a tax professional.
About this tool
Missouri charges a state sales tax of 4.225%, plus local taxes averaging 4.22%, for a combined average of 8.44%. Enter a price and the calculator shows the tax and the total; switch modes and it works backwards from a total to the pre-tax amount. Because the 4.22% local figure is a population-weighted average rather than a rule, the rate box is editable — put in your own city or county rate whenever the number has to be exact.
Reversing sales tax is the part worth understanding. To pull tax out of a total you divide by 1 plus the rate; subtracting the percentage from the total gives a slightly different — and wrong — answer, and the gap widens as the rate rises. That is why the “remove tax” mode exists here rather than leaving you to do it by hand, and it is the calculation you want when reconciling receipts, splitting an expense claim or working out what a listed price was before tax.
For context, Missouri’s combined average of 8.44% is above the national average of 7.53%, which places it 12 of 51 among the states and the District of Columbia. Five states — New Hampshire, Oregon, Montana, Alaska and Delaware — levy no statewide sales tax at all, though Alaska’s local governments do, which is why its average is above zero. High-rate states tend to get there through local add-ons rather than the state rate itself: Louisiana and Alabama both have modest state rates and some of the highest combined rates in the country.
Rates on this page are effective January 1, 2026, sourced from the Tax Foundation, and reviewed each year. They are provided to save you looking them up, not as a substitute for checking: state legislatures adjust rates, local districts add and remove their own, and exemptions for groceries, clothing and medicine differ widely. For anything you are filing or remitting, confirm the current rate with the Missouri revenue department.