Indiana assesses property as of January 1 and bills it the following year, in May and November. A new house is assessed on whatever was standing on that January 1, so your first bill after closing usually reflects the lot or a partly built house and looks cheap. Once the finished house is assessed, the bill rises to the real number. Plan for that jump, especially in your escrow, and file for the homestead deduction right after closing.
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I'm Wes Johnston, a Realtor with Trueblood Real Estate in Fishers. Before real estate I spent about ten years designing homes and managing their construction for a custom builder in Hamilton County. I drew the blueprints and ran the jobs, so I know what goes on behind the drywall and what to check before it's covered up.
The most common surprise I see a year after a new-construction closing isn't a warranty item. It's the escrow letter. Here's why it happens and how to see it coming.
Property is assessed as of January 1 each year (Indiana Code 6-1.1-2-1.5), and the taxes on that assessment are billed the next year in two installments, due May 10 and November 10. So the bill you pay in 2027 is for the property as it stood on January 1, 2026. The full mechanics, including the 1% homestead cap and the deductions that are changing every year through 2031, are on my Indiana property taxes page.
Because on the January 1 that bill is based on, the house wasn't finished, or wasn't started. The assessor values what was there: the lot, maybe a foundation or framing. If you close in August 2026 on a house that broke ground in March, the bill you pay in 2027 is based on January 1, 2026, when it was dirt. The bill you pay in 2028 is based on January 1, 2027, the finished house. That's the jump.
Timing changes the size of the gap. A house finished in November is a full house on the next January 1; a house finished in February had almost a year as a partly built structure on the rolls. Ask the county assessor what the parcel is currently assessed at and whether an improvement has been added; that tells you where you are in the cycle.
Your lender sets the escrow payment from the current tax bill, which is the low one. When the real bill arrives, the escrow account comes up short, and the lender sends a letter: a lump sum to cover the shortage, a higher monthly payment going forward, or both. Nothing is wrong; the math just caught up. Two ways to soften it: ask your lender at closing to escrow based on an estimate of the finished-house taxes, or set the difference aside yourself each month.
Start with the price you're paying as a rough stand-in for assessed value, apply the homestead deductions, and multiply by the tax rate for that taxing district, then check against the 1% homestead cap. The step-by-step is here. A faster check: find a finished house of the same plan in the same community that was complete on a January 1 and look up its bill on the county site. I do this for every new-construction buyer; send me the community and I'll pull one.
Right after closing. For the deduction to apply to the next year's bill, the application has to be filed by early January; the Department of Local Government Finance's guidance for the 2022 cycle set the deadline at January 5, with the form dated by December 31, and said a buyer closing as late as December 31 could still qualify (DLGF memo, December 2021). In many closings the sales disclosure form you sign doubles as the homestead application; confirm with your title company that it was filed, and if not, file with the county auditor yourself. More on how to file.
The seller, here the builder, usually credits you for their share of the current year's taxes, which are based on the low assessment. Builder contracts sometimes handle this differently than the standard Indiana purchase agreement, so we read the tax clause. Either way, expect the credit to be small, and don't read it as a sign your taxes will be small. The rest of the closing is on new construction closing costs.
More new construction answers: What Are the Closing Costs on New Construction in Indiana?, How Indiana property taxes work, How Long Does It Take to Build a House in Indiana?, Do I Need a Realtor to Buy New Construction in Indiana?. Everything I've written on buying new is on the Resources page, and every builder's available homes are on New Home Builds.
Send me the community and plan. I'll find a finished comparable that's been through a full assessment and tell you what to expect, and what to tell your lender about escrow.
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This page is general information, not legal or tax advice. Assessment practices vary by county; confirm your parcel's status with the county assessor and your deductions with the county auditor.