Online Connecticut Department of Revenue 2026: e-Tax Portal
A practical guide to the Connecticut Department of Revenue Services online tax portal, officially known as myconneCT. Use this page to understand DRS filing, payments, refund status, individual income tax, business registration, sales and use tax, withholding tax, notices, penalties, local property tax confusion and official contact paths.
Quick Answer: What Is the Connecticut Department of Revenue Services Online Portal?
The Connecticut Department of Revenue Services, commonly called DRS, uses myconneCT as its online portal. myconneCT is used to file tax returns, make payments, view filing history, register a business, send secure messages and manage many Connecticut tax accounts.
Individuals
Use DRS and myconneCT for Connecticut income tax filing, payments, extensions, refund status, tax calculators, 1099-G access, account messages and copies of recent returns.
Businesses
Use myconneCT to register a business, file returns, make payments, apply or renew tax exemption forms and manage DRS business tax accounts.
Employers
Use DRS withholding tax guidance for Connecticut payroll withholding, CT-941 due dates, remitter classifications and employer tax filing obligations.
Connecticut Department of Revenue Services Key Facts for 2026
Use this table before you log in, file, pay, check refund status, register a business or call DRS.
| User question | Connecticut DRS answer | Best next step |
|---|---|---|
| What is myconneCT? | myconneCT is DRS’s online portal to file tax returns, make payments, view filing history and register a business. | Use the official DRS myconneCT page to access the portal. |
| When is the 2025 Connecticut income tax return due? | The state and federal income tax filing deadline for the 2025 tax year is Wednesday, April 15, 2026. | File electronically and pay any amount due by the deadline. |
| Can I file Connecticut tax through myconneCT? | Yes. DRS says income tax returns can be filed electronically through commercial software or by using myconneCT. | Remember that myconneCT does not file your federal return with the IRS. |
| How do I get a refund faster? | DRS recommends electronic filing and direct deposit for faster refund processing. | Use e-file, choose direct deposit when eligible and verify routing/account numbers. |
| What is the Connecticut sales and use tax rate? | Connecticut’s general sales and use tax rate is 6.35%, with special rules and rates for certain items and services. | Check official DRS sales tax guidance before collecting or paying tax. |
| What happens if I file or pay late? | DRS guidance lists 1% monthly interest on unpaid tax and a 10% late payment/underpayment penalty for income or use tax. A $50 late filing penalty may apply when no tax is due. | File on time even if you can only pay part of the balance. |
| Who handles Connecticut property tax bills? | Property tax bills are generally handled by cities and towns, not the normal DRS income tax portal. | Contact your local town hall, assessor or tax collector for property tax bill details. |
| What is the common DRS taxpayer phone number? | Common DRS taxpayer service phone numbers include 860-297-5962 and, for in-state callers, 800-382-9463. | Have your notice, tax year, tax type, confirmation number and account details ready. |
Connecticut DRS Portal Helper: Which Online Service Do You Need?
Choose your task and this helper points you to the correct official Connecticut DRS path. It does not collect personal data.
Select what you need. The helper will show the official page, what to prepare and the common mistake to avoid.
myconneCT Login: File Returns, Make Payments, View History and Securely Message DRS
myconneCT is the main Connecticut e-tax portal for many individual and business tax tasks. DRS says taxpayers can use myconneCT to file returns, make payments, view filing history, register a business and send secure messages to DRS.
Use myconneCT when you need to
- File Connecticut income tax returns or extensions where supported.
- Make individual or business tax payments.
- View filing history and account information.
- Register a new business for a Connecticut registration number.
- File business tax returns and renew/apply for tax exemption forms.
- Send and receive secure DRS messages.
Before logging in, prepare
- Username, password and access to your email or authentication method.
- Social Security number, ITIN, FEIN or Connecticut tax registration number.
- Tax type, tax year, filing period and confirmation records.
- Federal return records if filing a Connecticut income tax return.
- Bank routing/account number if making an electronic payment.
- DRS notice number or letter details if responding to correspondence.
Connecticut Individual Income Tax 2026: Filing Deadline, Extension, Payment and Penalty Rules
For calendar-year taxpayers, the Connecticut income tax return due date for the 2025 taxable year is April 15, 2026. If you need more time to file, Form CT-1040 EXT can request an extension of time to file, but it does not automatically extend time to pay.
| Income tax item | What to know | User action |
|---|---|---|
| Due date | 2025 Connecticut income tax returns are due April 15, 2026 for calendar-year filers. | File electronically where possible and keep confirmation. |
| Extension | Use Form CT-1040 EXT when a Connecticut extension request is required. Tax expected to be owed must still be paid by the original due date. | Do not confuse an extension to file with an extension to pay. |
| Estimated payments | Estimated tax may be required when Connecticut income tax is $1,000 or more and withholding/credits are below required annual payment rules. | Use DRS estimated tax guidance and current forms. |
| Interest | DRS guidance lists interest at 1% per month or fraction of a month on unpaid tax until paid in full. | Pay as much as possible by the due date. |
| Late payment / underpayment penalty | The penalty for late payment or underpayment of income or use tax is 10% of the tax due. | File and pay on time whenever possible. |
| No-tax-due late filing | DRS may impose a $50 penalty for late filing of a required return or report even when no tax is due. | File required returns on time even when the balance is zero. |
Connecticut DRS Refund Status: Faster Refunds, Direct Deposit and myconneCT Account Access
DRS recommends electronic filing and direct deposit for faster refund processing. myconneCT can also be used to obtain account information and access certain tax documents.
Before checking refund status
- Confirm you are checking a Connecticut DRS refund, not an IRS federal refund.
- Have your Social Security number or taxpayer identification ready.
- Have the tax year, refund amount and filing method ready.
- Check whether the return was e-filed or paper-filed.
- Use myconneCT for account access when available.
Refund problems to avoid
Do not file a second Connecticut return just because a refund has not arrived. If DRS needs more information, wait for instructions or use official DRS/myconneCT contact paths. Verify bank details carefully before choosing direct deposit.
Connecticut Business Registration: DRS Tax Number, myconneCT and Secretary of the State Confusion
A Connecticut business may need both business entity filings and tax registration. The Secretary of the State handles many business and commercial filings, while DRS handles Connecticut tax registration and tax accounts through myconneCT.
| Business task | Correct office | What to prepare |
|---|---|---|
| Form LLC, corporation or search business records | Connecticut Secretary of the State | Business name, entity type, registered agent and filing details. |
| Get federal EIN | IRS | Legal name, responsible party, business structure and mailing address. |
| Register for Connecticut tax number | DRS / myconneCT | FEIN/SSN, business address, start date, owner/officer details and tax type. |
| Register sales and use tax account | DRS / myconneCT | Business activity, taxable sales, locations and expected filing frequency. |
| Register withholding tax | DRS / myconneCT | Employer payroll start date, employee wage records and tax withholding details. |
| Local permits or town business requirements | City/town offices | Location, zoning, trade permits, local license and occupancy information. |
Connecticut Sales and Use Tax: 6.35% General Rate, Registration, Filing and Local Mistakes
Connecticut’s general sales and use tax rate is 6.35%, but some items and services can have different treatment. Businesses should use official DRS guidance before deciding whether to collect tax, claim an exemption, or file a return.
Sales tax checklist
- Register for sales and use tax when your activity requires it.
- Collect the correct Connecticut tax on taxable sales.
- Keep exemption certificates and resale documentation.
- File returns and pay through official DRS/myconneCT channels.
- Keep sales records, purchase records and deduction support.
Use tax reminder
Use tax can apply when taxable goods or services are bought for use in Connecticut and sales tax was not properly collected. Individuals and businesses should review DRS use tax guidance before ignoring an untaxed purchase.
Connecticut Withholding Tax 2026: Employer Filing, CT-941 and Remitter Timing
Connecticut withholding tax applies to employers and payers required to withhold Connecticut income tax. DRS guidance includes remitter rules, monthly and quarterly due dates and Form CT-941 timing.
| Withholding item | DRS timing to know | Employer action |
|---|---|---|
| Monthly remitter | Monthly withholding can be due the fifteenth day of the following month. | Track payday month and deposit deadline. |
| Quarterly reconciliation / CT-941 timing | Quarterly periods are generally due the last day of the month following the calendar quarter. | File by April 30, July 31, October 31 and January 31 where applicable. |
| Weekly remitter | For some weekly remitters, due dates depend on the payday day of week. | Use DRS withholding rules before scheduling payroll tax deposits. |
| Employee withholding | Use current Connecticut withholding forms and guidance. | Keep employee withholding certificates and payroll records. |
| Payroll software | Software does not replace employer responsibility. | Confirm rates, due dates and DRS account status. |
Connecticut Business Taxes: Corporation, Pass-Through Entity Tax and Filing History
Connecticut business taxpayers may need to handle corporation business tax, pass-through entity tax, sales and use tax, withholding tax or other tax types. The right filing depends on entity structure, ownership, income, activity and registration status.
Business tax records to keep
- Federal return and Connecticut business tax forms.
- Connecticut registration number and myconneCT confirmations.
- Owner, member, partner or officer records.
- Apportionment, income, credits and payment history.
- Sales tax, payroll and local business records.
Common business mistake
Do not assume that filing an annual report with the Secretary of the State satisfies DRS tax obligations. Entity records and tax accounts are separate workflows.
Connecticut Property Tax: Why DRS Is Not Usually Where You Pay Your Bill
Connecticut property tax is generally local. For the property tax credit on a Connecticut income tax return, DRS tells taxpayers to know the exact amount of property tax paid; if they do not know it, they may call their local town hall for the information.
| Property issue | Usually correct office | What to prepare |
|---|---|---|
| Property tax bill or payment | Town or city tax collector | Bill, account number, property address, installment and payment record. |
| Assessed value | Local assessor | Assessment notice, property card, parcel details and appeal deadline. |
| Property tax credit amount for income tax | Local town hall / tax collector records | Exact property tax amount paid during the relevant year. |
| Car tax / motor vehicle property tax | Local municipality | Vehicle details, bill, town of residence and payment confirmation. |
| Income tax filing with property tax credit | DRS | Connecticut income tax return and exact qualified property tax amount. |
Connecticut DRS Letter, Bill, Notice or Penalty: What To Do Next
A Connecticut DRS notice can involve missing returns, underpayment, late filing, late payment, refund adjustment, identity verification, business registration, sales tax, withholding, audit or collection activity.
| Notice type | First thing to check | Best action |
|---|---|---|
| Missing return notice | Tax type, tax year, filing period and confirmation records. | Compare with myconneCT filing history and respond through official instructions. |
| Balance due or penalty notice | Original due date, payment date, amount due and interest period. | Check payment confirmation and contact DRS if records disagree. |
| Refund adjustment | Adjusted line item, offset, credit, withholding or missing document. | Review return, W-2/1099, payment and credit records. |
| Sales tax notice | Permit/account number, filing period, sales records and exemption documents. | Prepare invoices, sales reports and payment records before calling. |
| Withholding notice | Employer account, quarter, CT-941 and payroll records. | Compare payroll deposits, employee records and filing status. |
| Scam or suspicious message | Sender, payment demand, link domain and notice details. | Open CT.gov/DRS directly instead of using suspicious links. |
Connecticut Local Tips: Hartford, New Haven, Stamford, Bridgeport and Town-Level Tax Issues
Connecticut is small, but tax responsibilities are split across state and local offices. DRS handles state tax administration, while cities and towns often handle property tax, car tax, local assessments and local payment questions.
Hartford-area tip
DRS headquarters and many state tax resources are centered in Hartford, but most users should start online through myconneCT before trying to visit or mail documents.
New Haven and Fairfield County tip
Property tax questions usually belong to the town assessor or tax collector. DRS may need the exact amount paid for income-tax credit purposes, but your town has the payment record.
Stamford and business corridor tip
A business may need Secretary of the State filings, DRS tax registration, withholding, sales tax, local permits and unemployment/employment-related accounts. Do not stop after one registration.
Remote worker and border-state tip
Connecticut residents and nonresidents with New York, Massachusetts or Rhode Island work arrangements should check residency, withholding and credit rules carefully before filing.
Connecticut Department of Revenue Services Phone Numbers, Mailing Address and Contact Paths
Use official DRS pages for the most current contact details. Prepare your tax type, tax year, notice number and account information before calling.
| Need | Contact path | Notes |
|---|---|---|
| General DRS taxpayer help | 860-297-5962 | Common DRS taxpayer services number. Have your notice and tax details ready. |
| In-state toll-free taxpayer help | 800-382-9463 | Commonly listed for Connecticut in-state callers. |
| myconneCT account help | Use myconneCT help, FAQs, tutorials and secure messaging. | Login, password, account access and secure messages should start on the official portal. |
| Mailing documents or refund check issue | Department of Revenue Services, 450 Columbus Blvd, Suite 1, Hartford, CT 06103 | Use official form instructions for exact mail stop or unit when provided. |
| Property tax amount paid | Local town hall, assessor or tax collector | Use local records for property tax credit support. |
| Business entity filing | Secretary of the State | DRS handles tax registration; SOTS handles many business filings. |
Connecticut Department of Revenue Services FAQs
Visible FAQs below match the FAQPage schema included at the end of this article.
What is the Connecticut Department of Revenue Services?
The Connecticut Department of Revenue Services is the state tax agency that administers Connecticut tax filing, payments, refunds, business taxes, withholding, sales and use tax and taxpayer services.
What is myconneCT?
myconneCT is the Connecticut DRS online portal used to file tax returns, make payments, view filing history, register a business and communicate securely with DRS.
Is myconneCT the same as the official Connecticut DRS website?
myconneCT is the official online service portal connected to Connecticut DRS, while the DRS website on CT.gov provides guidance, forms, instructions, press releases and support pages.
When is the 2025 Connecticut income tax return due?
The 2025 Connecticut income tax return is due April 15, 2026 for calendar-year filers.
Can I file my Connecticut income tax return through myconneCT?
Yes. DRS says Connecticut income tax returns can be filed electronically using commercial tax software or by using myconneCT.
Does myconneCT file my federal return too?
No. If you use myconneCT for a Connecticut return, you still need to file your federal return separately with the IRS.
How do I check my Connecticut refund status?
Use the official DRS refund status page or myconneCT account access and prepare the tax year, taxpayer identification details and refund information.
What is the fastest way to receive a Connecticut refund?
DRS recommends filing electronically and choosing direct deposit where eligible to receive a refund faster.
What is the Connecticut sales and use tax rate?
The general Connecticut sales and use tax rate is 6.35%, although certain items and services can have special rules or rates.
Where do I register a Connecticut business for tax?
Use myconneCT to register a business for Connecticut tax accounts and obtain a Connecticut registration number when required.
Is Connecticut business registration with DRS the same as forming an LLC?
No. Business entity filings are generally handled by the Connecticut Secretary of the State, while DRS handles tax registration and tax accounts.
What should I prepare before logging in to myconneCT?
Prepare your username, password, email or authentication access, SSN/ITIN/FEIN, Connecticut tax registration number, tax type, tax year and any notice or confirmation number.
What happens if I pay Connecticut income tax late?
DRS guidance lists interest at 1% per month or fraction of a month on unpaid tax and a 10% late payment or underpayment penalty for income or use tax.
Can DRS charge a penalty if no tax is due?
Yes. DRS may impose a $50 penalty for late filing of a required return or report even if no tax is due.
How do I request a Connecticut income tax extension?
Use Form CT-1040 EXT when a Connecticut extension request is required and pay any expected tax due by the original due date.
Does an extension give me more time to pay Connecticut tax?
No. An extension is generally an extension of time to file, not an extension of time to pay tax due.
Who handles Connecticut property tax bills?
Connecticut property tax bills are generally handled by local town or city tax collectors, not the regular DRS income tax portal.
Where do I get the property tax amount for my Connecticut income tax credit?
If you do not know the exact amount of property tax paid, DRS guidance indicates you may call your local town hall for the information.
What is the Connecticut DRS phone number?
A common Connecticut DRS taxpayer service phone number is 860-297-5962. In-state callers may also see 800-382-9463 listed for taxpayer assistance.
Where is Connecticut DRS located?
Connecticut DRS is commonly associated with 450 Columbus Blvd, Suite 1, Hartford, CT 06103. Use official form instructions for exact mailing directions.
Can I send secure messages to DRS?
Yes. DRS states that myconneCT can be used to securely send and receive messages with DRS.
How do I get copies of prior Connecticut tax returns?
DRS guidance says you may request copies using the appropriate disclosure request form, and myconneCT may allow viewing and printing of recent Connecticut income tax returns.
What should I do if I received a DRS notice?
Read the notice carefully, identify the tax type, tax year, filing period, deadline and requested action, then respond through official DRS or myconneCT instructions.
Is this website the official Connecticut DRS website?
No. This is an independent informational guide. Use official CT.gov, DRS and myconneCT pages for filing, payment, refund status, notices and legal tax decisions.
Final Recommendation: Use This Page as Your Connecticut DRS Online Portal Roadmap
Start with myconneCT for online filing, payments, filing history, business registration and secure DRS messages. Use official DRS pages for final tax decisions, forms and instructions. For property tax, car tax or local bill amounts, start with your town or city office. For business entity formation, start with the Secretary of the State, then handle tax registration through DRS.
Last editorial update: June 6, 2026. Verify final filing, payment, refund, notice, business registration and legal tax details on official Connecticut DRS pages.