Connecticut · Do-it-yourself · $29

Appeal your Connecticut property taxes yourself.

Everything you need to appeal your Connecticut assessment yourself: starting with the 70% ratio that makes most homeowners wrongly think they are under-assessed, then the hard February 20 deadline, the hearing you must attend, and a ready-to-edit appeal.

What you are buying: a DIY preparation guide and templates, not a parcel-specific comp report. With this kit, you pull your own comps — the kit shows you how to organize them.The separate $49 Property Assessment Audit requires verified parcel evidence. Neither product includes filing or representation.
The Connecticut DIY Appeal Kit
Organize your evidence, prepare your appeal letter, and check the filing steps in one PDF. $29, paid once.
  • State-specific process guidance with official-source links
  • Evidence organizer and filing checklist
  • Ready-to-edit appeal-letter template
See a worksheet excerpt before buying

PARTIAL SAMPLE · Connecticut DIY kit

Your notice and deadline worksheet

Three blank fields from the worksheet included in your paid PDF. Copy these details from your notice; they are not a property analysis or an official filing form.

Property address and parcel identifier

State, county, township and reviewing body

Assessment year and valuation date

After purchase: the complete state guide, three fillable worksheets, official-source links and editable appeal letter. The full evidence organizer and letter are not included in this excerpt. You gather evidence and file yourself.

Your filing plan, ready to work through

Get the Connecticut process guide, three fillable worksheets, official filing links and an editable appeal letter. Gather your evidence and file yourself.

Personalize your kit (optional)

Copy details from your assessment notice. We add these to your worksheets and your address to the letter. These are your entries, not a verified property analysis. You can also buy now and fill them in later.

Worksheet preview · Connecticut

Property: [Your property address]

County / municipality: [From your notice]

Assessed value: [From your notice]

Parcel: [From your notice]

Assessment year: [From your notice]

After purchase: the complete guide, editable worksheets and letter. No comparable sales or savings estimate included. Confirm your filing deadline before buying.

Instant PDF, emailed on purchase · Secure checkout by Stripe · 30-day money-back guarantee

Prepare your Connecticut property tax appeal

Have a current notice? Check its deadline and reviewing office, verify the property details, then organize evidence that supports the correction you are requesting. Confirm official forms and fees before filing.

Preparing for a future window? Use the worksheets to review property records, list errors to investigate and plan your evidence. Buying now does not reopen a closed deadline or guarantee lower taxes.

The kit organizes those steps into a reusable guide and worksheets. It does not find comparable properties for you, file an appeal or replace your local authority’s instructions.

See what comes in the $29 DIY kit

Inside the Illinois kit: fillable worksheets, an evidence organizer and an appeal-letter template. Your state's guidance and filing requirements may differ.

Watch the walkthrough · 42 seconds · captioned
Read the video transcript

Want to appeal your property assessment without starting from a blank page? Here is what AppealMyTax's $29 DIY kit includes: a guide to the process, a worksheet to check your notice and deadline, fillable fields to organize comparable-property research and supporting evidence, a filing and hearing tracker, and an appeal letter you can copy and customize. Choose your state and pay once. Your kit is delivered by email. You gather the evidence, confirm your local requirements, and file yourself. See what is included at AppealMyTax.

On screen: pages from the Illinois kit, including its notice/deadline worksheet, evidence organizer and filing/hearing tracker. You complete required forms and file yourself.

How a Connecticut appeal works

The short version, free. The paid kit adds the evidence workbook, filing controls, and editable letter.

  1. Connecticut assesses your home at 70% of market value as of October 1, and each of its 169 towns runs its own appeal. There are no counties. Divide your assessment by 0.70 first: that is the market value your town is actually claiming.
  2. File a written application with your town's Board of Assessment Appeals by FEBRUARY 20 (March 20 only if your town's assessor got a grand list extension). It is a hard statutory bar with no good-cause cure.
  3. Then SHOW UP at the March hearing. Section 12-113 bars the board from reducing the assessment of anyone who does not appear. Filing the form alone accomplishes nothing.
  4. The board notifies you of the hearing by March 1 and mails a decision within one week of deciding. A reduction stays locked in until your town's next revaluation. If you lose, you have two months from that mailing to appeal to Superior Court, and SERVICE, not just filing, must be completed inside those two months.

What to check on your assessment notice

  • DIVIDE THE ASSESSMENT BY 0.70. That is the market value your town is claiming. Compare that number, not the assessment, to what your house would actually sell for. This one step is where most Connecticut homeowners wrongly conclude they are under-assessed. (Hartford residents: confirm your ratio with the Assessor first. It is not 70%.)
  • The assessment date. Value is set as of October 1, and in a revaluation year as of the October 1 the revaluation took effect, which may be several years back. Your comparables must match that date.
  • Your property record card, audited line by line: square footage, bedroom and bath count, basement finish, garage, acreage, year built, condition and grade. A single wrong number is the easiest appeal to win.
  • Your filing deadline and delivery method, confirmed with the Assessor: February 20 or March 20, and whether they require physical receipt. Most large cities do not accept a postmark and several impose a 4:30 or 5:00 p.m. cutoff.

Official lookup: CT OPM: the five-year revaluation schedule for every town →

What’s inside

✓The 70% conversion that tells you whether you actually have a case, and why most Connecticut homeowners get it backwards.
✓The hard February 20 deadline, the narrow March 20 extension and what really triggers it, and the one court-recognised exception.
✓The § 12-113 appearance rule: why filing the form and not showing up forfeits the entire appeal.
✓How to get your town's OWN neighbourhood sales compilation and revaluation price schedules for free under § 12-62(c).
✓Your town's revaluation year, and why a February appeal may be contesting a valuation set years ago.
✓The service-versus-filing trap that kills self-represented Superior Court appeals under § 12-117a.
✓Dedicated sections for Bridgeport, New Haven, Hartford, and Stamford, including Hartford's non-standard residential ratio.
✓A ready-to-edit appeal application meeting every content requirement in § 12-111(a)(1).

How it works

  1. Buy the kit — the PDF lands in your inbox instantly.
  2. Call your Assessor's Office and ask two things: whether the grand list date was extended under § 12-117 (February 20 normally, March 20 with an extension), and whether they accept a postmark. Most large cities do not. The application must be physically received.
  3. Gather the evidence on the checklist and edit the appeal-letter template.
  4. File the current instrument required by your municipal Board of Assessment Appeals, in practice received and date-stamped by the Assessor's Office before your deadline.

Different process where you live?

Connecticut is not one system. These jurisdictions use a different agency, a different form, and an earlier deadline than the rest of the state. The kit covers each one in its own section.

Bridgeport
All real property in the City of Bridgeport. Bridgeport revalued effective October 1, 2025, which makes this a live revaluation appeal cycle and the highest-stakes year for its homeowners.
Deadline
February 20, with the window opening February 1. The form states in capitals that completed forms must be on file with the Assessor no later than February 20 and that POSTMARK DATE WILL NOT BE ACCEPTED.
Filed with
The City of Bridgeport Board of Assessment Appeals, 45 Lyon Terrace, Room 105.
Form
Property Assessment Appeal Application, grand-list-year specific.
New Haven
All real property in the City of New Haven. Note the trap: New Haven's last revaluation was effective October 1, 2021 and the next is October 1, 2026, so a February 2026 appeal contests the 2021 valuation even while 2026 revaluation mailers are arriving.
Deadline
February 20 at 5:00 p.m. Postmark date will not be accepted. If the 20th falls on a weekend or holiday, the city applies the previous business day.
Filed with
The City of New Haven Board of Assessment Appeals, 165 Church Street.
Form
Property Assessment Appeal Application, grand-list-year specific.
Hartford
All real property in the City of Hartford. IMPORTANT: Hartford assesses residential property at a lower ratio than the statewide 70% under separate authority, so the standard divide-by-0.70 arithmetic does not apply here without checking.
Deadline
On or before February 20, with hearings throughout March. Hartford's next revaluation is effective October 1, 2026, then 2031.
Filed with
The Hartford Board of Assessment Appeals, c/o the Assessor's Office, 550 Main Street, Room 108.
Form
Application to Appeal (posted in PDF and spreadsheet versions).
Stamford
All real property in the City of Stamford. Stamford's last revaluation was effective October 1, 2022 and the next is 2027.
Deadline
February 20 at 4:30 p.m., or March 20 if the grand list date is extended.
Filed with
The City of Stamford Board of Assessment Appeals, 888 Washington Blvd., 6th Floor.
Form
Appeal Application Form for the current Grand List, with separate real-estate and motor-vehicle versions.
Deadline: Under § 12-111(a)(1) an appeal to the Board of Assessment Appeals shall be filed in writing or by electronic mail, in a manner prescribed by the board, ON OR BEFORE FEBRUARY 20. Section 12-112 reinforces it: no appeal may be heard unless written appeal is made on or before February 20 (the September session is for motor vehicles only). There is no late-filing provision, no good-cause exception, and no hardship waiver. The one narrow exception is that a filing received after February 20 is timely where the deadline fell on a day the municipal office was closed. The March 20 variant is narrower than most people think. Section 12-111(b) extends the taxpayer's date to March 20, with hearings in April, only where an extension was granted TO THE ASSESSOR under § 12-117 by the town's chief executive officer. It is not something you apply for, and a § 12-117 extension granted only to the BAA (which is mandatory in a revaluation year) does NOT move your filing date. To confirm which applies, ask the Assessor's Office directly. Two reliable tells: the grand list is normally signed and published by January 31, and hearings scheduled for April rather than March indicate an extension year. After the board decides, § 12-117a(a)(1) gives you two months from the DATE OF MAILING of its notice to apply to the Superior Court.

What Connecticut charges to file

These are your county or state’s fees, not ours. Listed so there are no surprises.

  • Board of Assessment Appeals: FREE. No statute authorizes a municipal filing fee, and the major cities' forms show none.
  • The informal revaluation-company hearing: free.
  • Superior Court appeal under § 12-117a or § 12-119: a $360 civil entry fee under CGS § 52-259 per the Judicial Branch's published schedule. Verify against the current fee page at the time of filing, since court fees are periodically amended.
  • Additional court costs that vary: state marshal service of process, the bond or recognizance required by § 12-117a(a)(1), and any appraisal you commission.
  • A licensed appraisal is MANDATORY within 120 days where assessed value is $1,000,000 or more (§ 12-117a(a)(2)). Not typical for residential, but relevant for high-value homes.
  • A fee waiver application (Judicial Branch form JD-CV-120) exists for indigent litigants.

Questions

Why is this $29 and not $49?
The Property Assessment Audit provides the filing or valuation output supported by your property's available evidence. Check your address and preview the available evidence before buying. This $29 kit is the state process guide, filing materials, evidence checklist, and appeal-letter template; you gather the property evidence yourself.
When is the Connecticut property tax appeal deadline?
Under § 12-111(a)(1) an appeal to the Board of Assessment Appeals shall be filed in writing or by electronic mail, in a manner prescribed by the board, ON OR BEFORE FEBRUARY 20. Section 12-112 reinforces it: no appeal may be heard unless written appeal is made on or before February 20 (the September session is for motor vehicles only). There is no late-filing provision, no good-cause exception, and no hardship waiver. The one narrow exception is that a filing received after February 20 is timely where the deadline fell on a day the municipal office was closed. The March 20 variant is narrower than most people think. Section 12-111(b) extends the taxpayer's date to March 20, with hearings in April, only where an extension was granted TO THE ASSESSOR under § 12-117 by the town's chief executive officer. It is not something you apply for, and a § 12-117 extension granted only to the BAA (which is mandatory in a revaluation year) does NOT move your filing date. To confirm which applies, ask the Assessor's Office directly. Two reliable tells: the grand list is normally signed and published by January 31, and hearings scheduled for April rather than March indicate an extension year. After the board decides, § 12-117a(a)(1) gives you two months from the DATE OF MAILING of its notice to apply to the Superior Court.
What form do I file to appeal my Connecticut property assessment?
your town's Board of Assessment Appeals application (Property Assessment Appeal Application), filed with your municipal Board of Assessment Appeals, in practice received and date-stamped by the Assessor's Office. The kit explains the filing steps and includes a ready-to-edit appeal letter.
Do you file the appeal for me?
No — this is a do-it-yourself product. You file with your municipal Board of Assessment Appeals, in practice received and date-stamped by the Assessor's Office. The kit provides the preparation workflow, evidence organizer, filing checks, and ready-to-edit letter.
What if it doesn't help?
30-day money-back guarantee, no questions asked. If the kit isn't useful, reply to your delivery email and we'll refund you.
Is this legal or tax advice?
No. It's general information to help you file your own appeal. Always rely on the date and instructions printed on your own assessment notice and confirm current requirements with your county.
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