The Tax Rate on Your Cedar Hill Home Is Being Voted On Right Now — Why Your Payment Estimate Is Already Wrong

By Steven J. Thomas

If you are under contract on a home in Cedar Hill right now, the escrow number on your loan estimate is built on last year's tax rates. Not this year's. The rates that will actually set your bill are being debated in meetings happening this month, and most of them will not be final until late September. That gap between what your lender printed and what the taxing entities adopt is the part nobody explains to you at the model home.

The short answer

Cedar Hill is proposing a city tax rate of roughly $0.638949 per $100 of taxable value for tax year 2026, up about a quarter of a cent from the $0.636449 it adopted in September 2025. That is a proposal, not a final number. Texas taxing units other than water districts have to adopt a rate before September 30, or by the 60th day after they receive the certified appraisal roll, whichever comes later. Until then, every payment estimate you are looking at is an estimate built on old inputs.

What Cedar Hill is actually voting on

The number on the table

The proposed 2026 city rate of $0.638949 per $100 was described during Duncanville's August 6, 2026 city council budget workshop, where staff walked through what neighboring cities are proposing. You can watch that Duncanville budget workshop recording yourself. That is an important detail about where the figure came from, so I am going to be direct about it: this number was cited in a neighboring city's meeting, not pulled from Cedar Hill's own posted notice. Treat it as PROPOSED and not yet adopted.

Before you plan around it, confirm the adopted rate at the source. Cedar Hill posts its own budget and tax rate documents on the city site at cedarhilltx.com, and every Texas taxing unit's proposed and adopted rates land in the state's local property tax database at Texas.gov property tax transparency. That database is updated regularly during August and September as local elected officials propose and adopt.

Why "proposed" is doing real work in that sentence

A proposed rate is a starting position. Councils cut it, hold it, or adopt it as proposed. They also have to publish a notice with a taxpayer impact statement — a side-by-side comparing this year's tax bill on a median-valued homestead against next year's estimate under the proposed budget. That statement is the single most useful document a buyer can read during August, and almost nobody reads it. The Texas Comptroller's Truth-in-Taxation page lays out the notice requirements and the adoption deadlines.

Your bill has two multipliers, not one

People argue about the tax rate. The rate is only half the equation. Your property tax bill is taxable value multiplied by the rate. Two numbers. Change either one and the bill changes.

Multiplier one: taxable value

Your appraisal district sets an appraised value. Exemptions come off that number to produce taxable value. A homestead exemption does not lower your rate. It lowers the value the rate gets applied to. That distinction matters more than most buyers realize, and I will show you the arithmetic in a minute.

Exemption amounts differ by entity and change with state legislation, so pull yours from your appraisal district rather than from a rule of thumb. Cedar Hill's city limits touch more than one county line, so check which appraisal district your specific parcel sits in. Your tax bill lists every entity by name.

Multiplier two: the rate

The rate is quoted per $100 of taxable value. So $0.638949 per $100 means you pay a little under 64 cents for every $100 of taxable value. That is the number being voted on this month.

You are not paying one tax rate. You are paying four to six.

A Cedar Hill buyer's tax bill is set by four to six separate taxing entities. City. County. School district. Community college district. Plus any special district your parcel falls inside — a municipal utility district, an emergency services district, a road district. Each one runs its own budget process. Each one votes on its own rate. Each one has its own hearing date this month.

Dallas College, which covers Dallas County property, is proposing $0.106575 per $100 against a no-new-revenue rate of $0.100224, with a hearing on August 11, 2026. That is published on the Dallas College notice of public hearing. The no-new-revenue rate is the rate that would raise the same amount of money from the same properties as last year. Proposing above it is a choice to collect more.

The same thing is happening on the other side of the metroplex. Tarrant County College is considering a move from 11.228 cents to 12 cents per $100, which works out to about $7.72 more per $100,000 of taxable value, with a vote August 20 and a final decision September 24, according to KERA News reporting from August 10, 2026. Tarrant County College is not a Cedar Hill entity, but it tells you the direction community college districts across North Texas are leaning this cycle.

Duncanville, right next door, is proposing the full voter-approval rate of $0.611659. Its average residential taxable value moved from about $282,000 to about $299,000, putting the city portion of that average bill near $1,800 a year. One penny on Duncanville's rate is roughly $413,000 of city revenue. That is the scale a single penny operates at for a city this size.

The actual math on a $600,000 to $700,000 Cedar Hill new build

Here is the arithmetic, step by step, so you can run it on your own contract. Every number below is an estimate based on current conditions and on a proposed rate that has not been adopted.

Step 1: convert the price into rate units

Rates are quoted per $100. So take taxable value and divide by 100. For a $650,000 taxable value, that is 6,500 units.

Step 2: apply the proposed city rate

6,500 × $0.638949 = $4,153.17 per year. Divide by 12 and the city portion alone runs about $346.10 a month inside your escrow.

At $600,000 taxable value that same rate produces $3,833.69 a year, or about $319.47 a month. At $700,000 it produces $4,472.64 a year, or about $372.72 a month.

Step 3: what the quarter-cent change actually costs

The proposed increase is $0.638949 minus $0.636449, which is $0.0025 per $100 — a quarter of a cent.

6,500 × $0.0025 = $16.25 per year. That is $1.35 a month on a $650,000 taxable value.

At $600,000 it is $15.00 a year, or $1.25 a month. At $700,000 it is $17.50 a year, or about $1.46 a month.

So the headline rate increase, by itself, is worth a little over a dollar a month on a house in this price band. If you came here braced for a crisis, that is not it.

Step 4: what a full penny does

A full cent is four times that quarter-cent. 6,500 × $0.01 = $65.00 per year, or about $5.42 a month on a $650,000 taxable value. At $600,000 a penny is $60.00 a year, or $5.00 a month. At $700,000 it is $70.00 a year, or about $5.83 a month.

Now hold that against the Duncanville figure. One penny costs a $650,000 homeowner about $5.42 a month and generates roughly $413,000 for a city budget. That asymmetry is why penny-level arguments dominate August council meetings.

Step 5: add a second entity and watch it stack

Take the proposed Cedar Hill city rate and add the proposed Dallas College rate: $0.638949 + $0.106575 = $0.745524 per $100.

6,500 × $0.745524 = $4,845.91 per year, or about $403.83 a month. That is two entities out of four to six. The school district is typically the largest single line on a Texas tax bill, and it is not in that figure yet. Neither is the county.

The Dallas College piece on its own: 6,500 × $0.106575 = $692.74 a year, about $57.73 a month. Its proposed rate sits $0.006351 above the no-new-revenue rate, which on $650,000 is $41.28 a year, or about $3.44 a month.

Step 6: now look at what the exemption does

Pick a round number for the exercise. Say your homestead exemption removes $50,000 from a $650,000 appraised value, leaving $600,000 taxable. Do not use $50,000 as your real number — get your actual exemption from your appraisal district.

City portion at $650,000 taxable: $4,153.17 a year.
City portion at $600,000 taxable: $3,833.69 a year.
Difference: $319.47 a year, or about $26.62 a month.

Read those two results next to each other. The rate fight everyone is watching is worth about $1.35 a month on this house. The exemption line — one form, filed once — is worth about $26.62 a month on the city portion alone, before the school district and county pieces are even counted. Roughly twenty times the impact of the rate change, from a piece of paperwork.

That is the whole point of this post. Most agents sell houses. I build plans. I am licensed on the real estate side and on the mortgage side, so I am looking at the entire payment — principal, interest, taxes, insurance, mortgage insurance, HOA — not just the number on the sign in the yard. An agent watching only the sale price never sees the $26.62. A loan officer who never asks about your exemption status never catches it either.

Why your payment estimate is already wrong

Not wrong in a scandalous way. Wrong in a mechanical way, for reasons that are worth understanding before you sign.

Lenders build escrow estimates from the most recent certified tax data available. In August, that means last year's adopted rates and, on new construction, often a value that does not yet reflect a finished house. If you are buying a build that was raw dirt in January, the appraisal district may still be carrying it as land. Your first-year escrow can be funded against a land-only value, and then the account trues up once the improved value hits the roll. That is the single most common escrow surprise in new construction, and it has nothing to do with anyone doing anything wrong.

Then layer the rate side on top. Four to six entities are each voting on their own rate between now and September 30. Your estimate predates all of those votes.

Rates on the loan side are moving too. Freddie Mac's 30-year average was 6.69% for the week ending August 6, 2026, per Money's current mortgage rates tracker. On a $650,000 purchase with 20% down, that is a $520,000 loan and about $3,352 a month in principal and interest, based on current conditions. Put roughly $404 of city and community college taxes next to that and you can see how the escrow side quietly becomes a real share of what you write the check for every month. This is an estimate for illustration. It is not a quote and does not obligate anyone to lend. To be specific about what is behind that number: 6.69% is a national weekly survey average, not a rate offered to you; the example assumes a $650,000 purchase price, 20% down, and a $520,000 30-year fixed-rate loan; the payment shown is principal and interest only and excludes taxes, insurance, and any mortgage insurance, so the APR and your actual monthly payment would both be higher. Your rate and terms depend on credit, loan program, property, and market conditions at the time of lock.

The calendar between now and September 30

Here is the sequence, from the Comptroller's Truth-in-Taxation rules.

• Appraisal districts certify the appraisal roll to each taxing unit during the summer.
• Each unit calculates its no-new-revenue rate and its voter-approval rate.
• Each unit publishes notices, including the taxpayer impact statement comparing this year's bill on a median-valued homestead to next year's estimate under the proposed budget.
• Each unit holds its public hearing.
• Each unit adopts a rate before September 30, or by the 60th day after receiving the certified appraisal roll, whichever is later. Water districts run on a separate track.

Five steps, four to six times over, all compressed into about eight weeks. Every one of those meetings is public, and most of them are streamed.

The trigger that gets pulled in mid-August

If a taxing unit adopts a rate above its voter-approval rate, it has to hold an election on the next uniform election date, and it has to adopt that rate no later than the 71st day before the election. Count backward from a November 2026 uniform date and you land in mid-August. Which means tax rate elections for November get called right about now.

For a buyer, that changes what you are looking at. A rate that goes to an election is not settled in September at all. It is settled by voters in November, after you have closed, moved in, and started making payments on an escrow account built from last year's numbers. Watch for the language in the notice about whether the proposed rate exceeds the voter-approval rate. That single line tells you whether the number is final in six weeks or four months.

What supply and financing conditions are doing to the picture

New construction supply across DFW is running around 5.2 months, down from a peak above 7. That is current conditions, and it cuts both ways for a Cedar Hill buyer. Tighter supply gives builders less reason to discount, but many are still using rate buydowns and closing cost credits instead of cutting sticker price. A buydown lowers your interest portion. It does nothing to your tax portion. If the escrow side of your payment is what is stretching you, a buydown solves the wrong half of the problem.

That is a conversation worth having before you pick an incentive package, not after. If you want to see what is actually available, I track DFW new construction communities and builder activity and keep current builder incentives across the metroplex in one place.

What to check this week

• Pull your entity list. Look at the tax bill or the appraisal district record for the exact address. Write down every entity by name. Do not assume it is the same as the last house you owned.
• Look up each entity's proposed rate. Start at the Texas.gov local property tax database. It updates regularly through August and September.
• Read the taxpayer impact statement. Every notice has one. It compares this year's bill on a median-valued homestead to next year's estimate. It is the plainest math any government agency will hand you.
• Check for the voter-approval language. If a unit is proposing above its voter-approval rate, the number is headed to a November election and is not settled in September.
• Confirm your exemption status. New build, new owner, mid-year closing — exemptions do not automatically follow the house. File with the appraisal district.
• Ask your lender how the escrow was calculated. Specifically: what value and what rate. If the answer is last year's rate against a land-only value, ask what a true-up would look like at the improved value and the proposed rate.
• Re-run the payment with the proposed rates. Not the current ones. Use the six-step arithmetic above.

None of this requires a professional. It requires about an hour and a willingness to open four to six PDFs.

Most agents sell houses. I build plans.

I said it earlier and I want to close on it with the number attached. On a $650,000 Cedar Hill build, the tax rate change everyone is arguing about moves your monthly escrow by roughly $1.35. The exemption you might not have filed moves the city portion alone by roughly $26.62. Same house, same month, twenty-fold difference — and only one of the two shows up in the news.

I hold licenses on both sides of that transaction. Real estate and mortgage. That means when I sit down with a Cedar Hill buyer, I am not just talking about the house and handing the payment question to somebody else. I am looking at value, exemptions, rate, loan structure, and escrow as one number, because that is the number that hits your account on the first of the month. It is not a crusade. It is just arithmetic that somebody should be doing on your behalf.

What to take from this

• Cedar Hill's proposed 2026 city rate of $0.638949 per $100 is proposed, not adopted. Confirm the final number at cedarhilltx.com and the Texas.gov property tax database.
• Your bill has two multipliers: taxable value and the rate. The exemption moves the first one and usually matters more than the second.
• Four to six separate entities set your Cedar Hill bill, and each one votes on its own rate before September 30.
• A quarter-cent change runs about $1.35 a month on a $650,000 taxable value. A full penny runs about $5.42 a month. Both are estimates based on current conditions.
• If any entity proposes above its voter-approval rate, the number goes to a November election and gets called in mid-August.
• Your lender's escrow estimate uses last year's rates and, on new construction, often a pre-improvement value. Ask what it was built from.

Frequently asked questions

When does Cedar Hill's 2026 tax rate become final?

Texas taxing units other than water districts must adopt a rate before September 30, or by the 60th day after receiving the certified appraisal roll, whichever comes later. If a unit adopts above its voter-approval rate, the rate goes to an election on the next uniform election date instead. Check the Texas Comptroller's Truth-in-Taxation page for the current-year deadlines.

How much does a quarter-cent rate increase actually cost me?

On a $650,000 taxable value, a quarter of a cent per $100 is $16.25 a year, or about $1.35 a month. On $600,000 it is $15.00 a year. On $700,000 it is $17.50 a year. These are estimates based on the proposed rate and current conditions.

What happens if my escrow was funded on a land-only value?

On new construction, the appraisal district may still carry your parcel as unimproved land when your loan closes. Once the finished house hits the appraisal roll, the tax bill rises and the escrow account gets analyzed and adjusted. That can mean a shortage payment or a higher monthly escrow the following year. Ask your lender to model the improved value before you close so the change is not a surprise.

Which taxing entities show up on a Cedar Hill tax bill?

Typically the city, the county, the school district, the community college district, and any special district your parcel falls within. That is four to six line items. Cedar Hill's city limits touch more than one county line, so verify the exact entities for your specific address rather than assuming they match a neighbor's.

Does the homestead exemption lower my tax rate?

No. It lowers the taxable value the rate is applied to. Rate and value are two separate multipliers. Using a $50,000 exemption for illustration on a $650,000 value, the city portion at the proposed rate drops from $4,153.17 to $3,833.69 a year, about $26.62 a month. Get your actual exemption amounts from your appraisal district — they vary by entity and change with state law.

Where do I verify all of this myself?

Three places. The Texas Comptroller's Truth-in-Taxation page for the rules and deadlines. The Texas.gov local property tax database for each entity's proposed and adopted rate, updated regularly through August and September. And cedarhilltx.com for the city's own posted budget and notice documents.

Run your real number before the votes land

If you are shopping or under contract in Cedar Hill, get a payment estimate built on your actual entity list, your actual exemption status, and the proposed rates rather than last year's. That takes a few minutes.

Start your pre-approval

Steven J. Thomas — licensed Texas real estate broker with Refind Realty DFW, TREC Broker License #657467, and loan officer with Envision Home Lenders, NMLS #689220. 972-846-9170. Office: 128 S. Cockrell Hill Rd, DeSoto, TX 75115.

All figures above are estimates based on current conditions and on proposed tax rates that have not been adopted. Nothing here is a quote, a rate lock, an approval, or an offer or agreement to lend. This is not tax or legal advice — confirm rates with each taxing entity and consult a tax professional about your situation. Equal Housing Opportunity. Equal Housing Lender.