Massachusetts DOR 2026: State Tax Filing, Refund, Login & Phone
A practical Massachusetts Department of Revenue guide for taxpayers, businesses, employers, tax representatives and local residents who need MassTaxConnect login help, personal income tax filing, refund status, business registration, sales tax, withholding, corporate excise, motor vehicle excise direction, child support links, notices, abatements, payment agreements and official DOR contact paths.
Quick Answer: What Does the Massachusetts Department of Revenue Do?
The Massachusetts Department of Revenue administers tax laws, child support services and municipal finance support for the Commonwealth of Massachusetts. For most taxpayers, the main online doorway is MassTaxConnect, where individuals and businesses can file returns, make payments, check refund status, receive notices, register business tax accounts and manage tax correspondence.
For individuals
Use DOR for Massachusetts Form 1, Form 1-NR/PY, payments, refunds, estimated tax, 1099-G/1099-INT, amendments, abatements, appeals, payment plans and notices.
For businesses
Use MassTaxConnect for registration, sales and use tax, withholding, meals tax, room occupancy, corporate excise, pass-through entity excise, fiduciary and other tax accounts.
For local issues
Motor vehicle excise, property tax bills, assessed values and local finance questions often involve city or town offices, even when DOR provides statewide guidance.
Massachusetts DOR Key Facts for 2026
Use this table before you file, pay, register a business, check refund status or call the Massachusetts Department of Revenue.
| User question | Massachusetts DOR answer | Best next step |
|---|---|---|
| Where do I file and pay Massachusetts taxes online? | Use MassTaxConnect for many individual and business tax filings, payments, refund checks, notices and account actions. | Open MassTaxConnect and choose the correct individual, business or payment action. |
| When are 2025 Massachusetts personal income tax returns due? | 2025 Form 1, Form 1-NR/PY and fiduciary Form 2 are due April 15, 2026. | File electronically when possible and keep confirmation. |
| Who must file a Massachusetts personal income tax return? | Everyone whose Massachusetts gross income is $8,000 or more generally must file a Massachusetts personal income tax return. | Use resident, part-year resident or nonresident guidance before filing. |
| What is the Massachusetts personal income tax rate? | Most taxable income is taxed at 5%, and an additional 4% surtax applies to taxable income over the annual surtax threshold. | Use current forms and instructions for the tax year being filed. |
| What is the Massachusetts sales tax rate? | The Massachusetts sales and use tax rate is 6.25% on many taxable sales, rentals and certain services. | Review sales/use tax rules before charging customers. |
| What is the DOR phone number? | DOR contact center: 617-887-6367 or 800-392-6089 toll-free in Massachusetts. Hours are generally 9 a.m.–4 p.m., Monday–Friday. | Have your SSN, address, account number or letter ready. |
| Does DOR handle motor vehicle excise payments? | DOR publishes motor vehicle excise guidance, but bills are usually paid to your city or town collector. | Start with your local bill or city/town collector. |
| Does DOR handle property tax bills? | Property tax bills and assessed values are usually local city/town matters. DOR’s Division of Local Services supports municipal finance guidance. | Contact your local assessor or collector first. |
Massachusetts Local Tips: Before You Use the Wrong Agency
Massachusetts tax searches often mix DOR, MassTaxConnect, the Secretary of the Commonwealth, IRS, city/town collectors, city/town assessors, Registry of Motor Vehicles, Department of Unemployment Assistance and local licensing offices. Use these local tips before clicking the wrong portal.
Secretary of the Commonwealth is not DOR
If you need to form or search an LLC or corporation, file an annual report or check business entity records, start with the Secretary of the Commonwealth. If you need sales tax, withholding, corporate excise, MassTaxConnect or tax payments, use DOR.
City/town collector vs assessor
Property tax bills, water/sewer bills and many motor vehicle excise payments go through the city or town collector. Property values, exemptions and abatements often start with the local assessor.
Boston, Cambridge, Worcester and local tax offices
Local excise, property and business certificate tasks can vary by city or town. A Boston resident, Worcester business or Cape rental owner may need DOR plus local offices depending on the issue.
Cape Cod and short-term rental warning
Room occupancy and short-term rental rules can involve state excise, local option taxes, community impact fee questions and platform reporting. Keep booking platform records and MassTaxConnect filings organized.
Remote workers and part-year residents
Massachusetts resident, part-year resident and nonresident filing rules can affect workers who moved, worked remotely, lived in New Hampshire or Rhode Island, or earned Massachusetts-source income.
Call-before-visiting strategy
DOR service options can change. Use official contact pages, MassTaxConnect messages and appointment guidance before visiting. Bring notices, returns, payment confirmations and ID.
Massachusetts DOR Action Helper: Which Official Page Do You Need?
Choose your situation and this helper points you to the correct Massachusetts DOR, MassTaxConnect or local action. It does not collect personal data.
Select what you need. The helper will give you the official page, what to prepare and the common mistake to avoid.
MassTaxConnect Login: File, Pay, Refunds, Letters and Account Access
MassTaxConnect is the main online system for Massachusetts tax accounts. Individuals can use it for refund checks, payments, account access and some filing actions. Businesses use it for registration, filing, payment, notices and account maintenance.
Use MassTaxConnect when you need to
- File or pay Massachusetts personal income tax where available.
- Check the status of a personal income tax refund.
- Make estimated tax or bill payments.
- Register a business tax account.
- File and pay sales/use tax, withholding or other business taxes.
- Read DOR letters and respond to account notices.
Before creating or recovering access
- Have SSN/ITIN or business identification ready.
- Prepare your address and tax account information.
- Watch for authentication code email after signup.
- Use the same legal name and tax year information from official returns.
- Keep login email, password and security details secure.
Massachusetts Individual Income Tax 2026: Form 1, Form 1-NR/PY, Due Date and Surtax
Massachusetts personal income tax returns for tax year 2025 are due April 15, 2026. Residents generally use Form 1. Nonresidents and part-year residents generally use Form 1-NR/PY. Everyone whose Massachusetts gross income is $8,000 or more generally must file a Massachusetts personal income tax return.
| Individual tax item | What to know | User action |
|---|---|---|
| Resident return | Form 1 is the Massachusetts Resident Income Tax Return. | Use the 2025 Form 1 instructions for 2026 filing. |
| Nonresident/part-year return | Form 1-NR/PY is for Massachusetts nonresidents and part-year residents. | Review source income and apportionment rules if you moved or worked across states. |
| Due date | 2025 Massachusetts personal income tax returns are due April 15, 2026. | File and pay by the deadline or follow extension payment rules. |
| Extension | If you qualify for an extension, the return is generally due October 15, 2026, but tax due still must be paid on time. | Use official extension and payment guidance. |
| Tax rate | Most Massachusetts taxable income is taxed at 5%. | Use current DOR tax rates and forms for exact calculations. |
| 4% surtax | An additional 4% surtax applies to taxable income over the annual surtax threshold. | High-income taxpayers should use current DOR surtax worksheets and examples. |
Massachusetts DOR Refund Status: Check Your Personal Income Tax Refund
MassTaxConnect’s personal income tax refund status tool is the fastest way to check the status of a Massachusetts state tax refund. Use the official tool rather than third-party pages, and have your filing details ready.
Before checking refund status
- Know the tax year you filed.
- Have your SSN/ITIN or taxpayer information ready.
- Have the exact refund amount from the return.
- Confirm whether you filed electronically or by paper.
- Check MassTaxConnect messages or letters if refund is delayed.
When to contact DOR
Call the DOR contact center only after checking the official refund status tool and reviewing any MassTaxConnect letters. Have your SSN, address, tax year, refund amount and any DOR letter ready.
Massachusetts Business Tax Registration: MassTaxConnect, Sales Tax, Withholding and More
MassTaxConnect is DOR’s online application for registering, filing and paying Massachusetts taxes. A business may need sales/use tax, withholding, corporate excise, meals tax, room occupancy, trustee tax, pass-through entity excise or other accounts depending on its activities.
Businesses should check DOR registration when they
- Sell taxable goods or taxable services in Massachusetts.
- Have employees and must withhold Massachusetts income tax.
- Operate a restaurant, marketplace, lodging or short-term rental activity.
- Have corporate excise or pass-through entity tax obligations.
- Need room occupancy, meals, marijuana, alcohol or other tax accounts.
- Need to close, update or manage an existing Massachusetts tax account.
Prepare before registering
- Legal business name and trade name.
- FEIN or owner identification details.
- Business structure and Secretary of the Commonwealth entity details if applicable.
- Physical and mailing address.
- First date of Massachusetts activity.
- Tax types needed and responsible party information.
Massachusetts Business Owner Workflow: Secretary → IRS → DOR → City/Town License
Massachusetts business tax registration is not the same as forming a corporation or LLC. Use this workflow to avoid registering in one place and missing another required step.
| Step | Where to go | Why it matters | Common mistake |
|---|---|---|---|
| 1. Business entity | Secretary of the Commonwealth | Forms/searches corporations, LLCs, annual reports and registered agent records. | Thinking DOR creates your LLC. |
| 2. Federal EIN | IRS | Needed for payroll, banking and many tax accounts. | Paying unnecessary third-party EIN fees. |
| 3. State tax account | Massachusetts DOR / MassTaxConnect | Registers sales tax, withholding and other Massachusetts tax accounts. | Selling taxable items before registering. |
| 4. Local business certificate | City or town clerk | Many localities require business certificates, permits or local licenses. | Assuming state tax registration replaces local rules. |
| 5. Industry-specific agency | Relevant regulator | Alcohol, cannabis, food, lodging, construction and regulated professions may need additional approvals. | Ignoring industry licensing because a DOR tax account exists. |
Massachusetts Sales and Use Tax: 6.25% Rate, Returns, Use Tax and Exemptions
The Massachusetts sales tax is 6.25% of the sales price or rental charge on many taxable tangible personal property transactions and certain services. Use tax is also 6.25% and may apply when Massachusetts sales tax was not collected or was paid at a lower rate.
| Sales tax topic | What to know | Best action |
|---|---|---|
| General rate | Massachusetts sales and use tax is generally 6.25%. | Confirm whether your item or service is taxable. |
| Use tax | Use tax can apply to taxable purchases made online, by mail, by phone or out of state when Massachusetts tax was not collected. | Report use tax when required. |
| Business filing | Registered vendors generally file and pay through MassTaxConnect. | Keep sales records, exemptions and returns. |
| Exemptions | Some transactions are exempt, but documentation is important. | Keep valid exemption certificates and customer documentation. |
| Meals, room occupancy and local option issues | Restaurants, lodging and short-term rentals may involve additional tax categories or local option rules. | Review activity-specific guidance before collecting tax. |
| Marketplace/platform records | Platforms may collect some taxes, but businesses should still keep gross receipts and platform reports. | Do not assume platform collection covers every obligation. |
Massachusetts Withholding Tax: Employer Registration, Payroll and Filing
Massachusetts employers may need to register with DOR and withhold Massachusetts income tax from wages. Employer obligations can also involve federal EIN setup, payroll records, unemployment contributions, Paid Family and Medical Leave and year-end wage statements.
Employer withholding checklist
- Apply for a federal EIN if needed.
- Register your business with MassTaxConnect.
- Collect employee withholding information.
- File and pay withholding tax through official DOR systems.
- Keep payroll, W-2, 1099 and payment records.
Do not confuse agencies
DOR handles tax withholding. Unemployment insurance is generally handled through the Department of Unemployment Assistance, and Paid Family and Medical Leave has its own program rules. Employers may need more than one account.
Massachusetts Corporate Excise, Estimated Payments and Pass-Through Entity Excise
Massachusetts business entities may need corporate excise, financial institution excise, pass-through entity excise, partnership filing or other business tax filings depending on entity type and activity. DOR publishes year-specific forms, instructions and estimated payment schedules.
Businesses that should review corporate tax
- C corporations doing business in Massachusetts.
- S corporations and corporate entities with Massachusetts activity.
- Financial institutions and insurance-related taxpayers.
- Pass-through entities considering elective PTE excise.
- Entities with Massachusetts property, payroll or sales.
Estimated tax timing matters
Corporate estimated payment due dates and percentages can differ from personal estimated tax rules. For 2026 corporate estimated tax, DOR lists installments on March 16, June 15, September 15 and December 15 for calendar-year taxpayers.
Massachusetts Motor Vehicle Excise: Why DOR Is Not Usually Where You Pay the Bill
Massachusetts motor vehicle excise is commonly billed and collected locally by a city or town. DOR publishes guidance, but the bill usually comes from the local collector and payments or abatements may involve city/town offices and local assessors.
| Motor excise issue | Usually correct office | What to prepare |
|---|---|---|
| Pay motor vehicle excise bill | City or town collector listed on the bill. | Bill number, plate, name and payment method. |
| Moved, sold vehicle or cancelled registration | Local assessor or collector depending on issue. | Proof of sale, registration cancellation, move date or insurance/plate records. |
| Driver license or registration status | Registry of Motor Vehicles. | License, plate, registration and RMV notice. |
| General excise rules | DOR motor vehicle excise guidance. | Review official guidance before disputing a bill. |
Massachusetts Property Tax: Local Assessor, Collector and DOR Division of Local Services
Massachusetts property tax is primarily local. City and town assessors determine values and exemptions, while city and town collectors handle tax bills and payments. DOR’s Division of Local Services provides municipal finance oversight and guidance, but it is not usually where residents pay property tax bills.
| Property issue | Usually correct office | Why |
|---|---|---|
| Property tax bill or payment | City/town collector | Billing and collection are local. |
| Assessed value | City/town assessor | Valuation is local. |
| Residential exemption, elderly exemption or abatement | Local assessor | Applications and deadlines are local. |
| Municipal finance guidance | DOR Division of Local Services | DLS supports local officials and statewide guidance. |
Massachusetts DOR Letter, Bill, Audit, Abatement or Collection Notice: What To Do Next
A Massachusetts DOR notice can involve missing returns, refund adjustments, identity verification, tax due, penalties, audits, collections, appeals, abatements or MassTaxConnect account mismatches. Do not ignore the notice, but verify through official DOR channels before paying or sharing sensitive information.
| Notice type | First thing to check | Best action |
|---|---|---|
| Refund or identity letter | Tax year, return type, letter ID and requested response method. | Use MassTaxConnect or official contact options. |
| Bill or balance due | Tax period, amount, payment due date and penalty/interest lines. | Compare with filed returns and payment confirmations. |
| Missing return notice | Whether you filed, when you filed and confirmation number. | Respond with proof or file the missing return if required. |
| Audit notice | Documents requested, deadline and tax years involved. | Organize records and consider qualified tax help. |
| Abatement or appeal | Deadline and type of tax involved. | Use official appeal/abatement guidance and keep confirmation. |
| Payment agreement | Balance, eligibility and payment method. | Use official DOR payment agreement tools when available. |
MassTaxConnect Payments: EFT Debit, Credit Card, Debit Card and Convenience Fees
MassTaxConnect allows online payments and gives taxpayers options such as EFT debit and card payments. DOR notes that credit and debit card payments may involve a third-party convenience fee, so taxpayers should review payment details before submitting.
Before paying
- Confirm tax type and tax period.
- Match payment to the correct account.
- Review convenience fee details for card payments.
- Save confirmation number and bank/card records.
- Do not use unofficial payment links.
Estimated tax due dates
For calendar-year 2026 personal estimated tax, DOR lists installments due April 15, 2026; June 16, 2026; September 15, 2026; and January 15, 2027. Use current DOR instructions before paying.
Massachusetts DOR Child Support and Case Manager: Separate from Tax Filing
The Massachusetts Department of Revenue also provides child support services. Child support actions, case information and payments use separate official child support tools and should not be confused with personal income tax filing or business tax accounts.
Use child support pages for
- Enrolling in child support services.
- Managing a child support case.
- Viewing case information through Case Manager.
- Understanding child support payments and services.
Do not mix portals
MassTaxConnect is primarily for tax accounts. Child support Case Manager is separate. Use the official DOR child support page if your issue is support, custody-related financial enforcement or case information.
Massachusetts Department of Revenue Phone Numbers and Contact Paths
Use official Massachusetts DOR contact paths and prepare account information before calling so the representative can verify the issue faster.
| Need | Official contact/path | What to prepare |
|---|---|---|
| General tax help | 617-887-6367 | SSN, address, letter, tax year, account type and payment details. |
| Toll-free in Massachusetts | 800-392-6089 | Use during DOR contact center hours. |
| Hours | 9 a.m.–4 p.m., Monday–Friday | Call earlier in the day and avoid peak filing deadlines when possible. |
| Refund status | Use MassTaxConnect refund status first. | Tax year, SSN/ITIN and exact expected refund amount. |
| Business tax | MassTaxConnect and DOR business tax contact paths. | FEIN, account type, tax period, letter ID and payment records. |
| Motor vehicle excise | City/town collector or assessor listed on bill. | Bill number, plate, registration and local notice. |
Massachusetts DOR FAQs
Visible FAQs below match the FAQPage schema included at the end of this article.
What is the official Massachusetts Department of Revenue website?
The official Massachusetts Department of Revenue website is on Mass.gov at mass.gov/orgs/massachusetts-department-of-revenue.
What is MassTaxConnect?
MassTaxConnect is Massachusetts DOR’s online system for filing, paying, checking refunds, registering businesses and managing many tax accounts.
What is the Massachusetts DOR phone number?
The DOR contact center phone number is 617-887-6367. Toll-free service in Massachusetts is 800-392-6089.
What are Massachusetts DOR phone hours?
DOR phone hours are generally 9 a.m. to 4 p.m., Monday through Friday.
When are 2025 Massachusetts income tax returns due?
2025 Massachusetts personal income tax returns are due April 15, 2026.
Who must file a Massachusetts personal income tax return?
Everyone whose Massachusetts gross income is $8,000 or more generally must file a Massachusetts personal income tax return.
What is Massachusetts Form 1?
Form 1 is the Massachusetts Resident Income Tax Return.
What is Massachusetts Form 1-NR/PY?
Form 1-NR/PY is the Massachusetts Nonresident or Part-Year Resident Income Tax Return.
How do I check my Massachusetts tax refund?
Use the official MassTaxConnect refund status tool and prepare your tax year, taxpayer identification and expected refund amount.
What is the Massachusetts personal income tax rate?
Most Massachusetts taxable income is taxed at 5%, with an additional 4% surtax on taxable income over the annual surtax threshold.
What is the Massachusetts sales tax rate?
The Massachusetts sales and use tax rate is generally 6.25%.
Where do businesses register for Massachusetts taxes?
Businesses generally register for Massachusetts tax accounts through MassTaxConnect.
Is the Secretary of the Commonwealth the same as DOR?
No. The Secretary of the Commonwealth handles business entity records, while DOR handles tax accounts, filings and payments.
Does Massachusetts DOR handle withholding tax?
Yes. Massachusetts DOR administers employer withholding tax, but employers may also need other accounts with other agencies.
Does Massachusetts DOR handle corporate excise?
Yes. DOR administers Massachusetts corporate excise and publishes year-specific corporate forms and estimated payment guidance.
What is the Massachusetts pass-through entity excise?
It is an elective excise that qualifying pass-through entities may choose under Massachusetts rules. Use official DOR guidance before making the election.
Does DOR handle motor vehicle excise payments?
DOR publishes motor vehicle excise guidance, but payments are usually made to the city or town listed on the bill.
Does DOR handle property tax bills?
Property tax bills are usually handled by city or town collectors, while assessed values and many exemptions are handled by local assessors.
What should I do if I received a Massachusetts DOR notice?
Read the tax type, year, deadline and requested action. Verify through MassTaxConnect or official DOR contact paths and respond before the deadline.
How do I make a Massachusetts tax payment?
Use MassTaxConnect or official DOR payment instructions. Save confirmation numbers and review any card convenience fees before submitting.
Can I set up a Massachusetts DOR payment agreement?
Massachusetts DOR provides payment agreement options for eligible taxpayers. Use official DOR guidance and MassTaxConnect where available.
How do I file an abatement or appeal with Massachusetts DOR?
Use official DOR appeal or abatement guidance and keep all supporting documents, deadlines and confirmations.
Does DOR handle child support services?
Yes. Massachusetts DOR includes child support services, but child support tools are separate from normal tax filing and MassTaxConnect tax account actions.
Is this website the official Massachusetts DOR website?
No. This is an independent informational guide. Use official Mass.gov and MassTaxConnect pages for filing, payments, refunds, account access and legal tax decisions.
Final Recommendation: Use This Page as Your Massachusetts DOR Roadmap
Start here to understand the correct path, then complete sensitive actions only through official Massachusetts DOR, Mass.gov, MassTaxConnect or local city/town pages. For personal income tax, use current Form 1 or Form 1-NR/PY instructions. For businesses, keep MassTaxConnect confirmations, sales records, payroll records, exemption certificates and DOR notices organized.
Last editorial update: June 5, 2026. Verify final filing, payment, refund, tax rate, business, child support, motor excise and legal details on official Massachusetts DOR pages.