Kentucky vs Mississippi
A tax calculator says the difference is $54 a year. Once you count what a dollar actually buys in each, Mississippi is $3,035 ahead — $30,354 over 10 years.
Property tax is set by counties, not states. Inside Texas alone the rate varies six times over, so this is the single choice that changes the answer most.
Does it work everywhere in Mississippi?
in what the money buys · $30,354 over 10 years
A pay cut of up to $3,980 (4.0%) still leaves you level.
Who worked this out, and what it is built on
I build and maintain every comparison on this site — 1275 state pairs so far, on the same engine that runs the tax calculators for all 50 states and 3,143 counties. This is not a template with two names swapped into it: Kentucky and Mississippi are run through the actual rules of each place, and if the numbers say the move is not worth it, that is what the page says.
Four sources, and one deliberate refusal. Federal figures from the IRS revenue procedure. State rates read one state at a time off each state’s own department of revenue. County property tax from the US Census Bureau. Cost of living from the Bureau of Economic Analysis Regional Price Parities, 2024 — and not from Numbeo or any other crowd-sourced index, because those are filled in by users, publish no methodology, and cannot be cited. That single choice is most of why the cost-of-living numbers here differ from everybody else’s.
When I get something wrong I publish the correction with the date and what it cost — including the two mistakes on these pages I found myself. Data last verified September 1, 2026.
Where to go from here
Almost nobody is choosing between exactly two places. These are the questions that usually come next, with the answer already attached so you can see which is worth opening.
Other moves involving Kentucky or Mississippi
States that sit near Mississippi on prices compared against Kentucky, and the mirror of that. The comparison you would run next.
- Arkansas vs Kentucky— Arkansas by $3,576
- Iowa vs Kentucky— Kentucky by $355
- Kentucky vs Oklahoma— Oklahoma by $1,958
- Kansas vs Mississippi— Mississippi by $8,175
- Mississippi vs Nebraska— Mississippi by $5,681
- Mississippi vs Missouri— Mississippi by $4,072
Each state on its own
The full detail behind each half of the comparison above.
The counties that decide it
Property tax is set by county, and the spread inside one state beats most state pairs.
- Rockcastle County, Kentucky— 0.48%, the cheapest
- Campbell County, Kentucky— 1.06%, the dearest
- Issaquena County, Mississippi— 0.35%, the cheapest
- Coahoma County, Mississippi— 1.24%, the dearest
Similar in price to Kentucky
States that sit next to Kentucky on the price index — often the comparison people should have run.
- New Mexico— 92.2 on prices
- Tennessee— 91.9 on prices
- Missouri— 90.8 on prices
- Kansas— 90.1 on prices
- Every Kentucky comparison— all 50
- Every Mississippi comparison— all 50
- The nine states with no income tax— and what they charge instead
Mississippi leaves you $3,035 a year better off — not the number you were expecting
On $100,000 with a $400,000 home, the take-home difference between Kentucky and Mississippi is $54 a year. That is what a tax calculator gives you, and it is a nominal figure: it treats a dollar in Kentucky and a dollar in Mississippi as the same thing.
They are not. On the Bureau of Economic Analysis price index Kentucky is 90.2 and Mississippi is 87, where 100 is the national average. Deflate each take-home by where it gets spent and what the money actually buys is $80,849 in Kentucky against $83,885 in Mississippi — a real difference of $3,035 a year, 56.6× the nominal one, and $30,354 over the 10 years most people stay.
Where the two sit nationally: Kentucky is the 40th most expensive place to live of the 51 — the 50 states and the District of Columbia — and Mississippi is 50th. Housing, the component that moves most, is 64.3 against 56.5.
Grey columns are what a year of Kentucky and a year of Mississippi are worth in the same money. The bars between them are each thing that changes, in the order it changes: green adds, amber takes away.
Where the money actually goes, line by line
Before the layers, the conclusion they lead to: on this pair the tax code is a side issue. The price level moves the answer 26.0 times more than the largest single tax difference between Kentucky and Mississippi. The five layers still deserve walking, because they are what people arrive believing decides it:
Federal income tax — $13,170 either way. Identical, because it is federal. Any comparison that shows a difference here is wrong.
FICA — $7,650 either way. Also federal, also identical.
State income tax — $3,382 in Kentucky, $3,268 in Mississippi. A difference of $114.
Property tax — $2,872 in Kentucky, $2,932 in Mississippi on a $400,000 home, at each state's median local rate. Smaller than the income tax gap here, which is not usually the case.
Local income tax — zero on both sides. Both Kentucky and Mississippi keep income tax at the state level only, so the figures above are complete rather than approximations.
Total: $27,074 in Kentucky against $27,020 in Mississippi — 27.1% and 27.0% of gross.
And Kentucky housing costs 13.8% more
The cost of living figure on most comparison sites is one number from a crowd-sourced database. This is the Bureau of Economic Analysis Regional Price Parity — an official index published for every state, where 100 is the national average — and it comes split into components, which is the half that decides moves.
Cheaper in Mississippi than KentuckyDearer in Mississippi than Kentucky
Each bar is how far apart Kentucky and Mississippi are on that component, and which way. Housing almost always runs several times wider than everything else — which is why a single blended index tells you very little.
All items — 90.2 in Kentucky, 87 in Mississippi. A gap of 3.2 points.
Housing — 64.3 against 56.5. A gap of 7.8 points, 2.4× the headline gap. This is what people mean when they say somewhere is expensive.
Goods — 96 against 96.2, 0.2 points apart — 39.0 times narrower than the housing gap — and typical: across all 1,275 pairs the median is 2.7 points for goods against 24.9 for housing. Blended into one figure, what you are reading is mostly housing wearing a general label.
Utilities — 75.3 against 78.4. 3.1 points apart, close enough not to change a decision.
Which half of this reaches you depends on whether you buy. Renting, the real difference between Kentucky and Mississippi is $3,222 a year — property tax comes out of your side entirely, and what is left is the price level. Buying a $400,000 home it is $3,035. So renting is where the gap is widest here, by $187 — unusual, and it means buying erodes the advantage rather than compounding it.
The number to take into a salary negotiation: $96,020
This is the question people are actually asking and almost nobody answers: what would I need to earn in Mississippi to live exactly as well as I do on $100,000 in Kentucky?
$96,020. That is 4.0% less than you earn now. You could take a pay cut of $3,980 moving to Mississippi and be no worse off — which is a very different conversation to have with a recruiter than "Mississippi has lower taxes".
The dashed line is the salary you earn now. The solid line is what matches it in Mississippi. If the relationship were a simple multiplier the two would be parallel — they are not, because brackets, the Social Security ceiling and a property tax that does not move with income all bend it.
The obvious shortcut fails here, and by a measurable amount. Scaling your salary by the ratio of price levels — $100,000 × 87/90.2 — gives $96,452. The answer is $96,020, so the shortcut is $432 too high: brackets, the Social Security ceiling and a property tax that ignores income all bend the line the shortcut assumes is straight.
The figure belongs to the two states and your income. On $40,000 the match in Mississippi is $38,135, 4.7% below what you earn; on $250,000 it is $241,250, 3.5% below. The relationship bends by 1.2% across that range.
Over 10 years: $30,354
At $3,035 a year, 10 years in Mississippi comes to $30,354 — and the county choice inside Mississippi is worth $35,736 over the same period. Both are real; only one of them is in the headline.
At $3,035 a year of real difference, 10 years in Mississippi instead of Kentucky is worth $30,354 in today's purchasing power — before compounding anything you might invest it in.
The line starts below zero because moving costs about $15,000 and lands entirely in year one. It takes until year 5 for the move to pay for itself. That is the figure a per-year comparison hides.
And it is slower to arrive than the annual figure suggests. Reckoning $15,000 for removal, fees and the cost of selling — an assumption this page makes, not a figure from a source — at $3,035 a year it takes 4.9 years to recover — so the annual figure only becomes yours from year 6.
At three horizons: $9,106 over three years, $30,354 over 10, $91,061 over thirty — and the three-year figure does not clear the cost of getting there.
None of those figures contains the one variable that could overturn them: the same job rarely pays the same in Kentucky and Mississippi. That is what the $96,020 break-even above is for — it prices an offer instead of assuming the offer is identical.
Choosing the county matters more than choosing the state here
This comparison is worth $3,035 a year. Choosing where inside Mississippi to live is worth $3,574 a year on the same $400,000 home — 1.2 times as much.
Mississippi has 82 counties and the effective property tax rate runs from 0.35% in Issaquena County to 1.24% in Coahoma County. Move to the wrong county in the better state and you have given back more than the move gained you, twice over.
Which reframes the question. Rather than "Kentucky or Mississippi", the decision that carries the money is which county inside Mississippi — and the answer is not visible on any comparison that stops at the state line. Set both in the calculator above and every figure on this page recomputes on your actual rates rather than two medians.
The same logic applies to the losing side: Kentucky has counties cheaper than the median used here too, and for a reader who is staying put, moving county at home may be the better version of this decision.
You could take a $3,980 pay cut to move to Mississippi and be no worse off
That is the version of this comparison worth taking into a negotiation, and it is not a figure any tax calculator produces.
Matching your $100,000 standard of living in Kentucky takes $96,020 in Mississippi — 4.0% less than you earn now. So an offer of $96,020 is not a downgrade, and an offer above it is a raise however it looks on paper.
The reverse framing is the one recruiters use, and it is worth being able to answer: a company in Kentucky offering to match your current salary is offering you less than the Mississippi job at $96,020. On 10 years the difference is $30,354.
Where every number here comes from
Four sources, each read off the body that publishes it:
US Bureau of Economic Analysis — Regional Price Parities by State and Metro Area, 2024 (released 19 February 2026) — read 2026-09-08. https://www.bea.gov/data/prices-inflation/regional-price-parities-state-and-metro-area
IRS — Revenue Procedure for the tax year (federal brackets, standard deduction and FICA) — read 2026-09-02. https://www.irs.gov/
Each state's own department of revenue (state income tax rates and deductions), verified one state at a time — read 2026-09-02. https://estimatetax.net/sources/
US Census Bureau, American Community Survey (county effective property tax rates) — read 2026-08-31. https://data.census.gov/
The cost of living index is the part worth checking, because it is where comparison sites usually reach for something crowd-sourced. The Regional Price Parities are produced by the Bureau of Economic Analysis, cover every state and metro area, and are published with a methodology document. The figures here are the 2024 release and are not extrapolated forward.
And what this page does not model:
— The cost of living index is the BEA's Regional Price Parity for 2024, the most recent published. It is not extrapolated to the current year, and it is a state-wide average — inside a state, a metro area and a rural county differ by more than most state pairs do.
— Moving costs, state transfer taxes on buying a home, and the cost of selling the one you have are not included. On a short stay they can outweigh every annual difference on this page.
— Sales tax is not modelled. It is inside the BEA index — that is what a price parity measures — but it is not broken out separately here.
— The comparison assumes the same salary in both places unless you change it. In practice a job in a high-cost state usually pays more, which is exactly what the break-even figure is for.
— Health insurance, childcare and car insurance vary enormously by state and are only inside the index as averages. If any of the three is a large part of your budget, it deserves its own arithmetic.
Where to go next
Questions
- Is it cheaper to live in Kentucky or Mississippi?
- Mississippi, by $3,035 a year in real purchasing power on $100,000 with a $400,000 home. The take-home difference is only $54; the rest comes from the cost of living, where Kentucky indexes at 90.2 and Mississippi at 87 against a national average of 100.
- How much do I need to earn in Mississippi to match $100,000 in Kentucky?
- $96,020 — 4.0% less than you earn now, so a pay cut of up to $3,980 still leaves you level. That accounts for federal tax, FICA, state tax, property tax and the price level in each state.
- What are the taxes in Kentucky vs Mississippi?
- On $100,000: state income tax of $3,382 in Kentucky against $3,268 in Mississippi, and property tax of $2,872 against $2,932 on a $400,000 home at median county rates. Federal tax and FICA are identical in both — $13,170 and $7,650 — so any comparison showing a difference there is wrong.
- Does Mississippi really have lower property tax?
- That depends entirely on the county, which is why a state-level answer is not much use. Mississippi runs from 0.35% in Issaquena County to 1.24% in Coahoma County — 3.6 times, or $3,574 a year on a $400,000 home. The median is 0.73%.
- How much is the difference over 10 years?
- $30,354 in today's purchasing power, at $3,035 a year. That excludes moving and housing transaction costs, which land in year one and can outweigh everything else on a short stay.
- Where does your cost of living data come from?
- The Bureau of Economic Analysis Regional Price Parities for 2024, an official index covering every state and metro area with a published methodology. Not a crowd-sourced database — and it comes broken into housing, goods, utilities and services, which matters because housing moves several times more than anything else.