estimatetax
2026 · Indiana · County

Martin County Tax Estimator

Property in Martin County is taxed at an effective rate of about 0.531%. On the county’s median home of $150,400, that is roughly $798 a year. Put your own number in below — you do not need a parcel number.

County Martin CountyState INNo parcel number needed
$
Estimated annual property tax
$798

About $67 a month in escrow

Effective rate
0.531%
County median bill
$798

That is $0 above the median bill in Martin County0% more.

County effective rate
Estimación basada en el tipo efectivo del condado (impuesto inmobiliario mediano dividido entre el valor mediano de vivienda, Census ACS 5-year 2023). Tu recibo real depende del distrito exacto y de las exenciones que te apliquen.

How property tax works in Martin County

Your bill is the assessed value of your home multiplied by the combined rate of every authority that taxes it — the county, the school district, the city or township, and often a fire or library district. Those rates are set separately and added together, which is why two houses of identical value on opposite sides of a district line can owe different amounts.

Across Martin County, the median home is worth $150,400 and the median property tax bill is $798. Dividing one by the other gives the effective rate of 0.531% used above. That is the honest way to estimate a bill without knowing which districts a specific address falls into.

Martin County against the rest of Indiana

Of the 92 counties in Indiana with published figures, Martin County is the 13th cheapest. Switzerland County is the lowest at 0.412% and Marion County the highest at 0.929%. On a $400,000 home that spread is $2,068 a year — for the same house, in the same state.

Counties with a similar rate

What a home costs to hold in Martin County

Home valueAnnual property taxPer month
$200,000$1,061$88
$300,000$1,592$133
$400,000$2,122$177
$500,000$2,653$221
$750,000$3,980$332
$1,000,000$5,306$442

At Martin County’s effective rate, before any exemption you qualify for. Most lenders collect this monthly into an escrow account alongside the mortgage payment.

Income tax in Indiana, while you are here

Indiana taxes income at a flat 2.95% on top of the property tax above. Work out your Indiana income tax.

Martin County in the national picture

At 0.53%, Martin County is meaningfully below the national median of 0.84% — the 539th lowest of the 3,132 counties with usable data. It is not one of the extreme outliers, but the gap is real money: on a $400,000 home, the difference against a median county is about $1,226 a year, every year you own it.

For scale, the range across the whole country runs from about 0.08% at the bottom to 3.64% at the top. That is a spread of more than twenty to one on the same house, and it is decided almost entirely by where the line on the map falls rather than by anything about the property itself.

What 0.53% costs at each price point in Martin County

The rate is a percentage, so the bill scales straight with the value the assessor puts on the property: $200,000 → $1,061 a year ($88 a month); $350,000 → $1,857 a year ($155 a month); $500,000 → $2,653 a year ($221 a month); $750,000 → $3,980 a year ($332 a month); $1,000,000 → $5,306 a year ($442 a month).

The median home in Martin County is assessed around $150,400, which is why the typical bill here lands near $798. If you are looking above that price, read the row that matches your budget rather than the median — the median describes the county, not your purchase.

One caveat that catches people out: these figures use assessed value, and in many states that is not the same as the price you paid. Some states assess at a fixed fraction of market value, and some cap how fast an assessment can rise for an existing owner. Both make the published rate look higher or lower than what a specific household actually pays.

What property tax takes out of a Martin County income

Median household income in Martin County is $65,345 and the median property tax bill is $798. That is 1.2% of gross household income going to property tax alone — before any income tax, before FICA, and before the mortgage the tax sits on top of.

At 1.2% this is a manageable share by national standards, but note what it is measured against: median income, not your income. A retiree on a fixed income in the same house pays the same bill as the household earning $65,345, which is why almost every state has some form of senior or disability relief and why it is worth asking the assessor whether you qualify.

This is also the number that rent quietly reflects. A landlord in Martin County pays the same $798 on a comparable property and prices it into the lease, so the tax reaches renters too — it just arrives without a bill attached.

Why Indiana counties charge such different rates

Property tax is set locally, so Indiana does not have one rate — it has 92. They run from 0.41% in Switzerland County to 0.93% in Marion County, with Martin County at 0.53%, 13th cheapest of 92.

That is a comparatively tight range for a US state — 2.3 to one between the extremes — which usually means Indiana funds a large share of school costs at state level rather than leaving districts to raise it locally. Where the state carries more, local rates converge.

The practical consequence is that a rate you were quoted for Indiana as a whole is close to meaningless. The number that applies to you is the one for your county, and often for your district within it.

Property tax and income tax in Indiana, together

Indiana taxes income as well as property, so a full picture of what living in Martin County costs needs both. The property side is local and is on this page; the income side is set at state level and applies wherever in Indiana you live.

The two are worth adding together rather than comparing separately, because states trade them off against each other. A state with a low income tax often leans harder on property, and vice versa — which is why a single-tax comparison between two states can point the wrong way.

What the Martin County figure is, and what it is not

The 0.53% on this page is an effective rate: the Census Bureau's median property tax paid in Martin County ($798) divided by its median home value ($150,400), both from the American Community Survey five-year estimates. It is a real, citable measure of what owners here actually pay.

It is not a millage rate, and it is not the number on your tax bill. Your bill is the sum of every levy that reaches your parcel — county, school district, city or township, and often a fire, library or water district — applied to your assessed value after any exemption you qualify for. Two houses of the same value on opposite sides of a district line in Martin County can owe different amounts, and both are correct.

Use this figure to compare Martin County against other places and to sanity-check an escrow estimate. Use the assessor's roll to find out what you owe.

Martin County at a glance

Martin County has a population of about 9,854, 4,583 housing units, and a median household income of $65,345.

It is a small county, and that has two consequences for the numbers here. Census estimates carry wider margins of error on small populations, and a single large taxpayer — a plant, a utility, a resort — can move the whole rate when it arrives or leaves.

The Indiana rules that change your Martin County bill

On top of the standard homestead deduction, the supplemental deduction removes 35% of what remains below $600,000 of assessed value and 25% of what is above it. A further Supplemental Homestead Credit is worth a tenth of your liability, capped at $300.

Indiana runs a hard circuit breaker: your total property tax cannot exceed 1% of gross assessed value on a homestead — 2% on other residential and farmland, 3% on everything else. Above that line the excess is simply not collected. Because the limit is on the bill rather than the valuation, it protects you from a sudden jump in Martin County even in a year when local values move sharply — which is a stronger guarantee than a cap on assessed value gives.

Indiana assesses at 100% of True Tax Value, which the manual defines as market value-IN-USE: what the property is worth for the use it is actually being put to, not its highest potential use. Values are then trended annually against neighbourhood sales rather than reset on a fixed cycle, so an Indiana assessment moves a little every year.

These are Indiana rules and they apply in every county in the state, Martin County included. What varies locally is the rate, not the relief — so if you qualify for the relief and have not claimed it, the Martin County assessor is where that gets fixed.

The ten-year figure, which is the one that decides a purchase

A single year's property tax is a number people accept without much thought. The decade is the number that changes decisions, because unlike a mortgage it never amortises away and unlike income tax it does not fall when your income does.

On Martin County's median home value of $150,400, held ten years with assessed value rising 4% a year, Martin County collects about $9,581. The cheapest county in the state collects $7,441 over the same period and the dearest $16,775 — a spread of $9,334 on identical property, decided entirely by location.

The same house at the national median rate of 0.84% would run $15,116 over ten years, so Martin County costs about $5,535 less across the decade than a typical American county would.

Set that against the mortgage to see the weight of it. On a $150,400 purchase the ten-year property tax bill in Martin County is roughly 8% of the amount financed at 80% loan-to-value — before insurance, before maintenance, and before any millage increase. It is the largest recurring cost of ownership after interest, and the only one that a district can raise without asking you.

Treat the figure as an order of magnitude rather than a forecast. It assumes Martin County's current effective rate holds, and rates move with district budgets and with reassessment cycles. What it is reliable for is the comparison: the gap between two counties is far more durable than either absolute number.

Appealing a Martin County assessment: what it is worth

You cannot appeal the tax rate — that is set by budget votes you have no standing to challenge individually. What you can appeal is the assessor's opinion of your property's value, and that is a factual claim you can be right or wrong about.

The arithmetic decides whether it is worth your afternoon. On the median home in Martin County, $150,400, the bill runs about $798 a year. A 10% reduction in assessed value is worth roughly $80 a year, and because the corrected value carries forward it is nearer $399 across five years. Under $60 a year, the paperwork rarely pays; over $400, it usually does.

At this size a formal challenge is rarely worth the afternoon, and the better use of the same effort is the record itself: a factual correction costs one phone call and is usually granted without a hearing. Save the comparable-sales route for a year in which the valuation moves sharply, which in a lower-value area typically follows a reassessment cycle rather than arriving annually.

Also check the record itself before arguing valuation, because errors are commoner than contested opinions: square footage that includes an unfinished basement, a bathroom that does not exist, a garage counted twice, land area from a survey predating a lot split. A factual correction is usually granted without a hearing.

Deadlines are set locally here and are short — often thirty to forty-five days from the date the assessment notice was mailed, not from when you read it. Check the notice itself for the date, because missing the window generally forfeits the year regardless of how strong the case was.

How the bill is paid, and what happens if it is not

Most owners with a mortgage never pay this directly. The servicer collects roughly $67 a month alongside principal and interest on the median Martin County bill, holds it in escrow, and pays the county when it falls due. The consequence is that a rise reaches you as a change in your monthly payment months after the fact, with no obvious connection to the assessment notice that caused it.

Read the annual escrow analysis when it arrives. It shows the bill actually paid, and it is the cheapest way to catch an assessment you would have appealed had you noticed — by the time the payment changes, the appeal window for that year has usually closed.

The weight here is light: the median bill is 1.22% of median household income, so escrow rarely drives a purchasing decision and an increase is absorbed rather than felt. The consequence worth knowing is the reverse of the usual complaint — where the tax is small relative to income, owners tend not to open the assessment notice at all, and unclaimed exemptions go unnoticed for years.

Unpaid property tax is also secured against the house itself, which is what separates it from every other tax. States permit a tax lien, and eventually a tax sale, at the end of a statutory redemption period. It is slow and heavily noticed, so it is nearly always avoidable — but the mechanism means an unpaid property tax bill can never simply be written off the way an unpaid income tax debt sometimes is.

The Indiana counties either side of Martin County

The Indiana counties immediately cheaper than Martin County: Warren County at 0.52%, Fulton County at 0.51%, Wells County at 0.51%. On a $400,000 home the move from Martin County to Wells County would save about $78 a year.

Immediately more expensive: White County at 0.53%, Wabash County at 0.53%, LaGrange County at 0.54%. If you are weighing Martin County against White County, the rate gap on a $400,000 home is about $0 a year — worth knowing, but rarely the largest difference between two places.

Comparisons like these are the reason to use an effective rate rather than a millage. Millage rates are not comparable across county lines because assessment practices differ; tax paid over value paid is.

What actually sets your Martin County bill

Three numbers decide your bill, and the rate is only one of them. The first is assessed value, and Indiana taxes the full market value rather than a fraction of it — so nothing is discounted before the exemptions come off, and the headline rate here means what it says.

The second is how fast the bill itself is allowed to move, and Indiana is unusual in limiting exactly that — 1% a year — rather than limiting the valuation behind it. It is the stronger of the two protections.

The third is the combined rate of every authority that reaches your parcel — the county, the school district, the city or township, often a fire or library district. They are set separately and added, which is why two houses of identical value on opposite sides of a line in Martin County owe different amounts and both figures are correct.

Buying in Martin County? Read this first

Property tax is the part of the monthly cost buyers most often underestimate, because it does not surface until the lender builds the escrow. On a $400,000 home in Martin County it adds roughly $177 a month on top of principal, interest and insurance — $2,122 a year.

One rule to check before you rely on the seller's number: whether Indiana revalues the property when it changes hands. Where it does, the seller's bill can understate yours badly; where it does not, you inherit their position. We have not loaded that rule for Indiana, so ask the Martin County assessor directly rather than assuming.

Then ask what relief you qualify for in your first year. Deadlines are short and often fall early in the year. Relief that is not claimed is not given.

If your Martin County assessment looks wrong

You can contest the assessed value. You cannot contest the rate — that is set by elected bodies and is not open to appeal. So the question to answer before filing is narrow: would this property actually sell for what the assessor says it is worth?

Gather comparable sales close to the assessment date rather than to today. An assessor is defending a valuation as of a particular day, and recent sales that postdate it carry little weight.

Deadlines are short and usually run from the date the assessment notice is mailed rather than from when you opened it. The Martin County assessor's office is where the clock is published, and missing it costs the whole year — there is no late appeal in most jurisdictions.

Martin County property tax questions

How much is property tax in Martin County?
The effective rate in Martin County is 0.53%, from a median tax bill of $798 on a median home value of $150,400. On a $400,000 home that is about $2,122 a year, or $177 a month once it is in escrow.
Is property tax high in Martin County?
No — it is below average. Martin County charges 0.53% against a national median of 0.84%.
Which Indiana county has the lowest property tax?
Switzerland County at 0.41%, with Marion County the most expensive at 0.93%. Martin County sits at 0.53%, 13th cheapest of the 92 Indiana counties with published data.
Will my Martin County tax bill change when I buy?
That depends on whether Indiana revalues a property when it changes hands, and we have not loaded that rule for Indiana. It matters: in states that reassess on sale, the seller's bill can badly understate what you will pay. Ask the Martin County assessor before you rely on the current figure.
Is there a homestead exemption in Martin County?
Not in the usual form. On top of the standard homestead deduction, the supplemental deduction removes 35% of what remains below $600,000 of assessed value and 25% of what is above it. A further Supplemental Homestead Credit is worth a tenth of your liability, capped at $300.
How much can my Martin County tax bill rise in a year?
Indiana limits the bill itself rather than the valuation behind it: 1% a year. Indiana runs a hard circuit breaker: your total property tax cannot exceed 1% of gross assessed value on a homestead — 2% on other residential and farmland, 3% on everything else. Above that line the excess is simply not collected.
Is my Martin County home taxed on its full market value?
Yes. Indiana assesses at 100% of True Tax Value, which the manual defines as market value-IN-USE: what the property is worth for the use it is actually being put to, not its highest potential use. Values are then trended annually against neighbourhood sales rather than reset on a fixed cycle, so an Indiana assessment moves a little every year. That is worth knowing when you compare Indiana against a state that taxes a fraction — a lower rate somewhere else can still mean a higher bill.
Can I appeal my Martin County assessment?
You can contest the assessed value, but not the rate — the rate is set by elected bodies and is not open to appeal. Deadlines are short and usually run from the date the assessment notice was mailed rather than from when you opened it. The Martin County assessor's office publishes the current window, and in most jurisdictions there is no late appeal.
Does Indiana have an income tax as well?
Yes. Indiana taxes income at a flat 2.95%, on top of the property tax on this page. Worth adding the two together before comparing Indiana against anywhere else.
Do I need a parcel number to use this calculator?
No, and that is deliberate. The Martin County assessor's own estimator generally asks for one, which is fine if you already own the property and useless if you are deciding whether to buy it. This works from the home value instead. It is an estimate built on the county's effective rate, which averages across every district inside Martin County, so your exact bill depends on your district combination and on any exemption you qualify for. For the binding figure, the Martin County assessor or treasurer is the authority.
Where these numbers come from

US Census Bureau, American Community Survey 5-year 2023. B25103 median real estate taxes paid · B25077 median home value · B19013 median household income. Retrieved 2026-08-31. The effective rate is the county’s median tax paid divided by its median home value — a federal, citable figure. It is not the same as the exact millage for your parcel, and we do not claim it is. For that, go to the Martin County assessor.

An estimate for planning, not tax advice, and not a substitute for the county’s own assessment. County list: US Census Bureau, national county file 2020.