Taxes & The Four Counties
When is the next property revaluation in Lake Norman?
All four counties that touch Lake Norman, Mecklenburg, Iredell, Lincoln, and Catawba, revalue real property effective January 1, 2027, on the same four-year cycle that produced their last revaluation on January 1, 2023. That means every homeowner around the lake will receive a fresh assessed value, and the last time this happened, residential values in Mecklenburg rose 58% on average and Catawba values jumped 50% to 70%, with the counties cutting tax rates to soften the blow. If you are buying in Lake Norman now or already own here, this guide tells you when the notices arrive, what the 2023 numbers suggest for 2027, and exactly how to appeal an assessment you think is wrong.
When is the next property revaluation in Lake Norman?
North Carolina requires every county to reappraise property at least every eight years under General Statute 105-286. The four counties around the lake all go further and revalue on a four-year cycle, and their cycles are synchronized, which is rare for a four-county region. The last countywide revaluation in all four was effective January 1, 2023, and the next one in all four is effective January 1, 2027.
What that means for you: a new assessed value arrives whether you just bought a home in Lake Norman or have owned here for twenty years. Your assessed value resets toward what the county's appraisers believe the property is worth as of January 1, 2027, and your tax bill for the 2027 tax year is calculated on that new number.
| County | Cycle | Last Revaluation | Next Revaluation |
|---|---|---|---|
| Mecklenburg (Cornelius, Davidson, Huntersville) | 4 years | Jan. 1, 2023 | Jan. 1, 2027 |
| Iredell (Mooresville, Troutman, Statesville) | 4 years | Jan. 1, 2023 | Jan. 1, 2027 |
| Lincoln (Denver, Westport) | 4 years | Jan. 1, 2023 | Jan. 1, 2027 |
| Catawba (Sherrills Ford, Terrell) | 4 years | Jan. 1, 2023 | Jan. 1, 2027 |
Mecklenburg
Cornelius, Davidson, Huntersville
Iredell
Mooresville, Troutman, Statesville
Lincoln
Denver, Westport
Catawba
Sherrills Ford, Terrell
Notices arrive in late winter
Counties mail the new value notices in late January and February of the revaluation year, with an appeal window that opens as soon as the notice lands. In the most recent cycles, the informal appeal windows ran in the spring, so mark late January 2027 on your calendar now. Watch the mailbox: your notice will show the old value, the new value, and the deadline to challenge it.
Sources: Mecklenburg County, Property Valuation, Iredell County, Property Reappraisal, Lincoln County Reappraisal FAQ, Catawba County Revaluation, and North Carolina General Statute 105-286, all checked October 2026.
What did the last revaluation in 2023 do to Lake Norman values?
The January 1, 2023 revaluation was the most recent statewide reappraisal cycle, and it captured four years of one of the hottest housing markets in the country. Lake Norman home values had climbed steeply since 2019, and the 2023 assessments reflected that, with double-digit increases in every county around the lake.
Mecklenburg produced the headline number: residential values rose 58% on average countywide, with the county's overall average across all property types at 51%. Catawba County appraisers reported average increases of 50% to 70%, and some individual properties saw their value more than double. The pattern is the important part for 2027 planning: a four-year stretch of strong sales produces a big reset when the county finally catches up.
| County | Value change, 2023 revaluation | County rate action | Check 2027 by |
|---|---|---|---|
| Mecklenburg | Residential +58% avg (all property +51% avg; commercial +41%) | County rate cut from 61.69 to 47.31 cents per $100 | Mecklenburg County Assessor's Office |
| Iredell | Large countywide increases; countywide average not published in the sources we checked | County rate cut from 53.75 to 50 cents per $100 | Iredell County Assessor's Office |
| Lincoln | Countywide reappraisal completed Jan. 1, 2023; average increase not published in the sources we checked | No rate change found in the sources we checked | Lincoln County Appraisal Office |
| Catawba | ~50-70% average increases; ~69% since the 2019 revaluation; some properties rose more than 1,000% | No rate change found in the sources we checked | Catawba County Tax Office |
Mecklenburg
2023 revaluation
Iredell
2023 revaluation
Lincoln
2023 revaluation
Catawba
2023 revaluation
Why this matters for a 2027 buyer
If you close on a Lake Norman home in late 2026, your purchase price will be the county's best evidence of market value when the 2027 assessment is set. On the flip side, if you bought in 2020 and have not been reassessed since, expect the new value to catch up to what your home has actually been worth on the market, not what you paid for it. Neither outcome is a surprise if you plan for it, and both are appealable if the number comes in wrong.
Sources: WBTV, March 2023, Mecklenburg County FY2024 budget release, Iredell Free News, 2023, Hickory Record, 2023, and WBTV, March 2023. Verify current year figures with each county tax office.
Does a higher assessment always mean a higher tax bill?
No, and this is the part almost nobody explains. Your property tax bill is your assessed value times your tax rate, so a county can raise values and cut the rate at the same time, and many homeowners end up paying roughly what they paid before. That is exactly what happened in 2023: Mecklenburg cut its county rate from 61.69 cents to 47.31 cents per $100 of assessed value for the fiscal year that followed the revaluation, and Iredell cut its rate from 53.75 cents to 50 cents per $100.
But there are two catches. First, the rate cuts were not large enough to fully cancel the value jumps: Iredell's own budget coverage noted that most property owners still saw higher tax bills. Second, the rate is only part of the story because towns layer their own rates on top of the county rate, and a town rate does not automatically drop when a county revalues. Mooresville's 0.5800% municipal rate, the highest town rate on the lake, applies to whatever new assessed value Iredell certifies.
| Example: $500K home in... | Combined rate (FY2024-25) | Illustrative tax bill |
|---|---|---|
| Cornelius (Mecklenburg) | 0.7147% | ~$3,574 / year |
| Mooresville (Iredell) | 1.0800% | ~$5,400 / year |
| Denver (Lincoln) | ~0.505% | ~$2,525 / year |
| Sherrills Ford (Catawba) | 0.3985% | ~$1,993 / year |
Cornelius
Mecklenburg County
Mooresville
Iredell County
Denver
Lincoln County
Sherrills Ford
Catawba County
Do the math on your own home
The rates above are the county plus town rates in effect for FY2024-25, shown as a percentage of assessed value. Run your own price point through the interactive calculator on the Four County Breakdown page, and remember that the 2027 revaluation can change the value while the rate is set separately by each county and town board during budget season. Use the calculator to see how a 20%, 40%, or 60% value change would move your actual bill.
Rates compiled from the site's Four County Breakdown (FY2024-25 county and municipal rates). Rate actions: Mecklenburg FY2024 budget (county rate 61.69 to 47.31 cents), Iredell FY2023-24 budget (53.75 to 50 cents), sources as cited above. Verify current rates and rates after the 2027 budget cycle with each county and town.
How do you appeal a Lake Norman property assessment?
The appeal process is well defined in every county around the lake, and you do not need a lawyer or an appraiser to start it, though outside help helps when the stakes are large. The general shape is the same everywhere: an informal conversation with the assessor first, then a formal appeal to the county's Board of Equalization and Review, then, if needed, higher levels that can include the North Carolina Property Tax Commission and the courts.
The deadline is the part you cannot miss. North Carolina gives you a limited window after the value notice, and each county runs its own calendar. In the most recent cycle, for example, Mecklenburg's spring appeal deadline for value notices was early May, and Lincoln's Board of Equalization and Review heard informal appeals that had been filed within 30 days of the notice date. Check your notice for the exact date, because missing it closes the door for the whole year.
| County | Start here | Then | Best source for the current calendar |
|---|---|---|---|
| Mecklenburg | Informal review with the Assessor's Office is encouraged first | Formal appeal to the Board of Equalization and Review | tax.mecknc.gov Property Value Appeals |
| Iredell | Appeal Form with documentation to the Assessor's Office within the notice window | Board of Equalization and Review review | iredellcountync.gov Appeals Process |
| Lincoln | Informal appeal within 30 days of the value-change notice | Board of Equalization and Review, then Property Tax Commission and courts | lincolncountync.gov Appeal Procedures |
| Catawba | Real Property Appeal Request, online or on paper, during the appeal window | Board of Equalization and Review hearing | catawbacountync.gov Online Real Property Appeal |
Mecklenburg
Cornelius, Davidson, Huntersville
Iredell
Mooresville, Troutman, Statesville
Lincoln
Denver, Westport
Catawba
Sherrills Ford, Terrell
Read the notice and the deadline line by line
Your value notice shows the old value, the new value, and the last day you can appeal. Put that date in your phone the day the notice arrives. Nothing else matters if you miss it.
Gather your evidence before you call
The strongest evidence is comparable sales from around January 1 of the revaluation year, ideally homes similar in size, age, and location sold close to the assessment date. If you bought recently, your own closing price is powerful evidence. A short, dated list of three to five comparable sales beats a long, angry letter every time.
Try the informal route first
Every county around the lake encourages an informal conversation with the assessor before a formal filing, and it is genuinely the fastest path. Many differences get resolved on the phone when the data is on your side. Only if that fails, file the formal appeal within the window on your notice.
Know what you are allowed to appeal
In North Carolina you appeal the value of your property, and evidence of unequal assessment can be part of it, but the most common and most winnable ground is simply that the assessed value exceeds fair market value. An appeal is about value, not about whether you can afford the tax.
Keep paying your bill while the appeal runs
An appeal does not pause your tax bill or stop interest and penalties. Pay what was billed, and if the appeal succeeds, the county will adjust your account. Check with your county's tax collector for how a successful appeal is refunded or credited in your jurisdiction.
Revaluation years are the only real window
In non-revaluation years, values change only for physical changes, zoning changes, or clerical and mathematical errors. So the January 1, 2027 revaluation is your genuine opportunity to challenge an assessment in Lake Norman, and after the window closes you generally wait for the next cycle. Treat the 2027 notice like the once-every-four-years event it is.
Appeal process summarized from Mecklenburg, Iredell, Lincoln, and Catawba county tax sources (checked October 2026), including Mecklenburg's Property Value Appeals guidance, Iredell's Appeals Process, Lincoln's Appeal Procedures, and Catawba's Online Real Property Appeal. Deadlines change every cycle; always follow the dates on your own notice.
What should you actually do before the 2027 notices?
If you already own in Lake Norman, write down what you paid, what you think the home is worth, and three comparable sales from your neighborhood before late January 2027. When the notice arrives, compare it to that list immediately instead of waiting, because the informal window is short and the formal deadline is absolute.
If you are buying between now and the revaluation, remember that your purchase price is your best appeal evidence, and it cuts both ways: a purchase that comes in below an inflated assessment is a strong appeal, and a purchase near or above the assessed value makes an appeal hard to win. Your lender's appraisal is the same document the county will respect, so keep a copy after closing.
And no matter which county you are in, budget for the possibility that your bill changes in the 2027-28 tax year. The 2023 cycle raised values sharply even where rates dropped, and most owners around the lake saw a real increase in their total bill. Expect the same shape in 2027 and you will never be caught by surprise.
Related guides on this site
The Four County Breakdown has the full county and town rate table plus the interactive tax calculator. The HOA fee guide covers the other recurring cost every Lake Norman owner pays, and the boat property tax guide explains how boats are taxed separately from your home in every county around the lake.
Frequently asked questions
When is the next property revaluation in Lake Norman?
All four counties that touch Lake Norman, Mecklenburg, Iredell, Lincoln, and Catawba, revalue real property effective January 1, 2027, on their four-year cycle. The last revaluation in all four was effective January 1, 2023.
How much did Lake Norman assessments go up in the last revaluation?
In the January 1, 2023 revaluation, Mecklenburg residential values rose 58% on average (51% countywide across all property types), Catawba values rose 50% to 70% with some properties more than doubling, and Iredell and Lincoln saw large increases. Counties cut rates to offset part of the jump, but most owners still paid more.
Does a higher assessed value automatically mean a higher tax bill?
No. Your bill is assessed value times tax rate, and counties can cut rates when values rise. In 2023 Mecklenburg cut its rate from 61.69 to 47.31 cents per $100 and Iredell cut from 53.75 to 50 cents, but the cuts did not fully cancel the value increases, and town rates like Mooresville's 0.5800% sit on top of the county rate.
How do I appeal my Lake Norman property assessment?
Start with an informal review with your county's assessor, then file the formal appeal within the window on your value notice. Every county routes appeals through its Board of Equalization and Review, and Lincoln and others escalate further to the North Carolina Property Tax Commission and the courts. Do not miss the deadline on the notice.
Is my purchase price evidence for an assessment appeal?
Yes. If you buy a home in Lake Norman before the January 1, 2027 revaluation, your closing price is strong evidence of market value, and so is your lender's appraisal. If the new assessment comes in well above your purchase price, point to the sale and ask the assessor to explain the gap.
Can I appeal my assessment outside a revaluation year?
Generally no, and Catawba's guidance is typical of all four counties: outside a revaluation year, values change only for physical or zoning changes or clerical and mathematical errors. That makes the 2027 revaluation the real window to challenge your value for the next four years.
Buying in Lake Norman before the 2027 revaluation?
I can show you the assessed values and tax bills on the homes you are considering, which county is about to revalue, and how your purchase price will land when the 2027 notice arrives.
Planning a move to Lake Norman?
Whether you are three months out or three years out, the county, town, and community questions come first, before any house tour. Tell me where you are moving from and what you are looking for, and I will point you to the right starting point in Lake Norman.