Louisiana DOR 2026: State Tax Filing, Refund, LaTAP Login & Phone
A practical Louisiana Department of Revenue guide for taxpayers, businesses, employers, remote sellers, event vendors and tax professionals who need LaTAP login help, Louisiana state tax filing, refund status, sales tax, income tax reform, business registration, withholding, corporate tax, notices, office hours and official LDR contact paths.
Quick Answer: What Does the Louisiana Department of Revenue Do?
The Louisiana Department of Revenue administers state tax programs and taxpayer services, including Louisiana individual income tax, corporate income tax, sales and use tax, withholding tax, severance tax, alcohol and tobacco tax resources, LaTAP online filing, refund status, business tax accounts, electronic filing mandates, notices, collections, local office appointments and taxpayer assistance.
For individuals
Use LDR for Louisiana individual income tax, LaTAP access, refund status, extensions, payments, consumer use tax, notices and tax reform updates.
For businesses
Use LaTAP for business accounts, sales tax, withholding, corporate income tax, partnership tax, payments, business registration and additional revenue accounts.
For tax professionals
Use official LDR forms, e-file mandates, LaTAP, withholding tables, policy guidance, secure portals and account support for client tax work.
Louisiana DOR Key Facts for 2026
Use this table before logging in, filing, paying, checking a refund, registering a business or calling the Louisiana Department of Revenue.
| User question | Louisiana DOR answer | Best next step |
|---|---|---|
| Where do I file and pay Louisiana taxes online? | Use Louisiana Taxpayer Access Point, commonly called LaTAP, for many state individual and business tax filing and payment actions. | Open LaTAP or the official File & Pay Online page. |
| When are 2025 Louisiana individual income tax returns due? | Louisiana individual income tax returns for tax year 2025 are due May 15, 2026. | File electronically when possible and keep confirmation. |
| What is Louisiana’s individual income tax rate? | For taxable periods beginning on or after January 1, 2025, the individual income tax rate is a flat 3%. | Use current LDR forms and tax reform FAQs before filing. |
| What is Louisiana’s state sales tax rate? | Effective January 1, 2025, the state sales tax rate is 5%, with some special-rate items and local taxes still relevant. | Check state rate and local parish/municipal tax before collecting. |
| When are Louisiana sales tax returns due? | Sales tax returns and payments are due on or before the 20th day of the month following the close of the calendar month or quarter. | File through LaTAP and keep confirmation. |
| What is Louisiana’s corporate income tax rate? | For taxable periods beginning on or after January 1, 2025, corporation income tax is a flat 5.5%. | Review corporate income tax forms and instructions. |
| Is Louisiana corporation franchise tax repealed? | Yes. Corporation franchise tax has been repealed for franchise tax periods beginning on or after January 1, 2026. | Verify the period and entity treatment before final filing. |
| What phone number reaches LDR? | Louisiana Department of Revenue offices can be reached at 855-307-3893. | Call Monday–Thursday 8:00 a.m.–4:20 p.m. or Friday 9:00 a.m.–4:20 p.m. |
Louisiana Local Tips: Parish Tax, LaTAP, Secretary of State and Local Collectors
Louisiana tax searches can be confusing because the state has LDR, LaTAP, the Louisiana Secretary of State, parish sales tax collectors, local occupational license offices and separate motor vehicle systems. Use these local tips before choosing the wrong portal.
New Orleans / Orleans Parish tip
Do not assume state LaTAP filing covers every local obligation. New Orleans businesses should verify city permits, occupational license rules, local sales tax, hotel/motel tax and special event vendor requirements.
Baton Rouge / East Baton Rouge tip
LDR headquarters is in Baton Rouge, but many questions can be handled online. Baton Rouge office visits are generally available during listed office visit hours, but call first and bring notices, returns and account numbers.
Lafayette / Acadiana tip
Retailers, restaurants and festival vendors should track state sales tax and local parish/municipal sales tax separately. Event vendors should confirm local collector requirements before the event.
Shreveport / North Louisiana tip
Businesses near the Texas or Arkansas border should confirm nexus, delivery location, local tax collection and use tax before assuming another state’s rules apply.
Remote seller and marketplace tip
Marketplace collection does not always mean every state and local tax record is solved. Keep platform reports, customer destination details, exemption certificates and LaTAP confirmations.
Property tax tip
Property tax bills and assessments usually involve parish assessors, sheriffs or local tax collectors. LDR is not usually where a homeowner pays a normal parish property tax bill.
Louisiana DOR Action Map: What You Need vs Where to Go
Use this roadmap before logging in, filing, calling, or searching for a Louisiana tax refund.
| User need | Correct Louisiana path | What to prepare |
|---|---|---|
| File Louisiana individual income tax | LaTAP / File & Pay Online / current individual tax forms. | Federal return, W-2/1099 forms, filing status, deductions, credits and payment info. |
| Check Louisiana refund status | LDR Where’s My Refund or LaTAP. | SSN, filing status and refund amount. |
| File or pay business tax | LaTAP business account. | Revenue account number, tax type, period, return records and payment method. |
| Register a business with LDR | Business Registration page / LaTAP after Secretary of State registration where applicable. | Entity details, FEIN, legal name, address, start date and tax accounts needed. |
| Collect Louisiana sales tax | LDR sales tax page and LaTAP; check local collector separately. | Sales records, taxable products/services, parish/local rates and exemptions. |
| Handle withholding tax | LDR withholding resources and LaTAP. | Payroll records, employee withholding certificates and filing/payment period. |
| Corporate income tax | LDR corporate income tax resources and forms. | Federal return, Louisiana schedules, apportionment and payment records. |
| Property tax bill | Parish assessor, sheriff, or local tax collector. | Parcel/address, assessment notice, bill and exemption information. |
| Respond to a notice | Official LDR notice instructions, LaTAP notices and contact page. | Notice, letter ID, tax type, tax year, payment records and supporting documents. |
Louisiana DOR Action Helper: Which Official Page Do You Need?
Choose your situation and this helper points you to the best official LDR or LaTAP 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.
LaTAP Login: File, Pay, View Notices and Manage Louisiana Tax Accounts
Louisiana Taxpayer Access Point, known as LaTAP, is the main online system for many Louisiana state tax filings, payments and account actions. LDR’s File & Pay Online page directs taxpayers to log into LaTAP for state individual and business tax returns.
Use LaTAP when you need to
- File Louisiana state individual or business tax returns electronically.
- Make payments and view payment confirmations.
- View refund notices issued on your account.
- Register or manage Louisiana business revenue accounts.
- Add additional business tax accounts.
- Handle sales tax, withholding and other listed tax types.
Before logging in, prepare
- LaTAP user ID and password.
- Louisiana Revenue account number if available.
- FEIN, SSN or other taxpayer identification.
- Filing period and tax type.
- Refund amount or notice details when checking account status.
- Payment method and confirmation records.
Louisiana Individual Income Tax 2026: Due Date, Flat 3% Rate and Filing Basics
Louisiana individual income tax changed significantly with tax reform. For taxable periods beginning on or after January 1, 2025, Louisiana uses a flat 3% individual income tax rate instead of graduated brackets. Individual income tax returns for tax year 2025 are due May 15, 2026.
| Individual tax item | What to know | Action |
|---|---|---|
| 2025 return due date | Louisiana individual income tax returns are due May 15, 2026. | File electronically when possible and keep confirmation. |
| Flat individual tax rate | For periods beginning Jan. 1, 2025 and after, the rate is a flat 3%. | Use current LDR tax forms and instructions. |
| Standard deduction change | For periods beginning on or after Jan. 1, 2025, the standard deduction for single and married filing separate is increased to $12,500; married filing joint, qualified surviving spouse and head of household are double. | Confirm filing status before calculating tax. |
| Refund status | Refund status can be checked online using Where’s My Refund or by logging into LaTAP. | Wait at least 4 weeks for e-filed returns or 8 weeks for paper returns. |
| Extensions | Requesting an extension can affect filing time but does not automatically remove payment obligations. | Use official LDR extension guidance. |
| Consumer use tax | Louisiana residents may owe use tax on taxable purchases where sales tax was not properly collected. | Review consumer use tax rules before filing. |
Louisiana Refund Status: Where’s My Refund, LaTAP Notices and When to Call
Louisiana refund status is checked through LDR’s Where’s My Refund tool or through LaTAP. Most taxpayers can find refund information online without contacting LDR.
Before checking refund status
- Wait at least 4 weeks after electronically filing.
- Wait at least 8 weeks after mailing a paper return.
- Have your Social Security number ready.
- Have your filing status ready.
- Have the exact refund amount requested.
- Log in to LaTAP for notices issued on your account.
Refund phone options
Taxpayers may check individual income refund status by automated phone at 888-829-3071 or 225-922-3270. These automated refund numbers are available 24 hours a day. For broader LDR contact, use 855-307-3893.
Louisiana Business Registration: Secretary of State, LaTAP and Revenue Accounts
Louisiana business registration often has multiple steps. The Secretary of State handles many business entity records, while LDR handles state tax accounts. LDR says to use LaTAP if you have registered your business previously with the Secretary of State and need a Louisiana Department of Revenue business account, or if you already have an LDR account and need to add additional accounts.
Check LDR registration if your business
- Sells taxable goods or services in Louisiana.
- Needs to file state sales and use tax.
- Has employees and needs withholding tax.
- Operates as a corporation or partnership with Louisiana tax duties.
- Needs a new Louisiana revenue account.
- Needs to add additional LDR tax accounts.
Information to prepare
- Legal business name and trade name.
- FEIN or owner identification details.
- Louisiana Secretary of State entity details if applicable.
- Business physical and mailing address.
- Start date and business activity.
- Tax account types needed: sales, withholding, corporate, partnership or other.
Louisiana Business Owner Workflow: Secretary of State → EIN → LaTAP → Parish/Local License
Use this workflow before assuming that one registration completes all Louisiana business requirements.
| Step | Where to go | Why it matters | Common mistake |
|---|---|---|---|
| 1. Business entity | Louisiana Secretary of State / geauxBIZ | Forms or searches LLCs, corporations and business entity records. | Thinking LDR forms every legal entity. |
| 2. Federal EIN | IRS | Needed for payroll, banking and many tax accounts. | Paying unnecessary third-party EIN fees. |
| 3. State revenue account | Louisiana DOR / LaTAP | Creates or manages Louisiana state tax accounts. | Selling taxable items before registering. |
| 4. Local sales tax / occupational license | Parish or municipality | Local sales tax and business license rules may be separate from state LDR filing. | Assuming state LaTAP filing covers all local tax. |
| 5. Industry permits | Relevant Louisiana agency or local office | Alcohol, tobacco, contractors, food service and special events may need additional permits. | Only registering with LDR and ignoring regulated activity rules. |
Louisiana Sales and Use Tax: 5% State Rate, Due Date, Local Tax and Special Rates
Louisiana’s state sales tax rate is 5% effective January 1, 2025. Businesses must also consider local parish and municipal sales taxes, special rate items, exemptions and filing requirements. Sales tax returns and payments are due on or before the 20th day of the month following the close of the calendar month or calendar quarter of the reporting period.
| Sales/use tax topic | What to know | Best action |
|---|---|---|
| State rate | Louisiana state sales tax rate is 5% effective January 1, 2025. | Check the official rate table for special items. |
| Local taxes | Parish and municipal local tax can apply in addition to state tax. | Check the local collector for the sale location. |
| Due date | Returns and payments are due by the 20th day after the reporting month or quarter. | File early in LaTAP and keep confirmation. |
| Special events | Fairs, festivals and temporary vendors may need both state and local tax handling. | Contact local taxing authorities before the event. |
| Direct marketers | Direct marketer rates and rules can differ from ordinary retail state rates. | Use LDR direct marketer guidance. |
| Refund claims | Large sales tax refund claims and preparer-filed claims may have electronic documentation requirements. | Follow LDR refund claim mandate guidance. |
Louisiana Local Sales Tax: Parish, Municipality, Event Vendors and Marketplace Records
Louisiana is one of the states where local tax compliance can be especially important. A business may need state-level LDR filing plus separate local sales tax or occupational license steps depending on parish, municipality, event location and activity.
Local tax checklist
- Identify the parish and municipality for the sale or delivery.
- Confirm whether local sales tax applies.
- Check whether a local collector or commission handles filing.
- Confirm occupational license or local permit requirements.
- Keep marketplace facilitator and platform reports.
- Keep exemption certificates and resale documentation.
Event vendor warning
Festival, fair, pop-up and temporary vendors should not wait until after an event to ask about sales tax. Confirm state and local tax duties before the event, especially in New Orleans, Baton Rouge, Lafayette, Shreveport, Lake Charles and parish festival locations.
Louisiana Withholding Tax: Employer Filing, L-4 and Electronic Filing Expansion
Louisiana withholding tax applies when employers withhold Louisiana income tax from wages. LDR provides Form L-4, withholding tables, electronic filing resources and LaTAP tools. Beginning January 1, 2026, LDR announced expanded electronic filing and payment mandates for business tax returns, forms, payments and fees, including all withholding taxes and most sales and use taxes.
Employer checklist
- Register the correct withholding tax account in LaTAP.
- Collect Louisiana Form L-4 from employees when needed.
- Use current withholding tables and tax reform guidance.
- File and pay withholding electronically when required.
- Keep payroll, W-2, 1099 and payment records.
2026 electronic filing reminder
Business taxpayers should prepare for expanded electronic filing and payment requirements. Keep LaTAP credentials current, confirm account access and avoid last-minute portal problems near filing deadlines.
Louisiana Corporate Income Tax: Flat 5.5% Rate and Franchise Tax Repeal
For taxable periods beginning on or after January 1, 2025, Louisiana corporation income tax rate is a flat 5.5%. The graduated brackets and rates were repealed. Corporation franchise tax has been repealed for franchise tax periods beginning on or after January 1, 2026.
Corporations should review
- Federal corporate return and Louisiana schedules.
- Louisiana-source income and apportionment.
- Flat 5.5% corporation income tax rate.
- Franchise tax period beginning date.
- Inventory tax credit and tax reform changes if relevant.
- Payment, extension and electronic filing rules.
Do not confuse entity filing with tax filing
Louisiana Secretary of State entity records and Louisiana DOR corporate tax filings are separate. A corporation may need Secretary of State filings, LDR business accounts, corporate income tax, sales tax, withholding tax and local permits depending on business activity.
Louisiana Tax Reform and Credits: What Changed After January 1, 2025
Louisiana tax reform changed important individual and corporate tax rules. Some deductions, credits and special treatments changed by effective date, entity type and tax period. Always use official LDR tax reform FAQs before making final filing decisions.
| Tax reform topic | What LDR guidance says | User action |
|---|---|---|
| Individual income tax | Flat 3% for taxable periods beginning on or after Jan. 1, 2025. | Use current individual tax forms and withholding guidance. |
| Standard deduction | Single and married filing separate standard deduction increased to $12,500; certain filing statuses are double. | Confirm filing status and current instructions. |
| Corporate income tax | Flat 5.5% for taxable periods beginning on or after Jan. 1, 2025. | Use corporate forms and tax reform FAQs. |
| Franchise tax | Repealed for franchise tax periods beginning on or after Jan. 1, 2026. | Check the franchise tax period, not just calendar year. |
| Inventory tax credit | Changes depend on entity type and taxable period; C-corporation treatment changes for periods beginning on or after July 1, 2026. | Use official credit guidance before claiming. |
Louisiana Property Tax: Why LDR Is Usually Not Where You Pay Your Bill
Property tax in Louisiana is usually administered locally. Homeowners and property owners generally work with parish assessors, sheriffs or local tax collectors for bills, assessed value, exemptions and payment questions.
| Property tax issue | Usually correct office | Why |
|---|---|---|
| Property tax bill/payment | Parish sheriff or local tax collector | Collection is local. |
| Assessed value | Parish assessor | Assessment and valuation are local. |
| Homestead exemption | Parish assessor | Eligibility and filing records are local. |
| Tax sale or delinquency | Parish/local tax collector | Deadlines and local rules apply. |
| State income/sales tax account | Louisiana DOR / LaTAP | Separate from property tax billing. |
Louisiana DOR Notice, Bill, Penalty or Collection Issue: What To Do Next
An LDR notice can involve refund review, missing returns, additional information, identity verification, tax due, sales tax account issues, withholding, corporate income tax, penalties, collections or account mismatch. Do not ignore a notice, but verify it through official LDR channels before paying or sending sensitive information.
| Notice type | First thing to check | Best action |
|---|---|---|
| Refund notice | Tax year, filing status, requested documents and LaTAP notices. | Log in to LaTAP and respond through official instructions. |
| Missing return | Tax type, tax period and filing confirmation. | Compare records and file/correct if needed. |
| Sales tax bill | Return period, state/local split, payment records and exemption documents. | Prepare LaTAP and sales records before calling. |
| Withholding notice | Payroll period, L-4, W-2/1099 and payment confirmation. | Review payroll records and filing history. |
| Corporate tax notice | Taxable period, apportionment, credits, payment and extension records. | Use a tax professional if calculations are complex. |
| Collection issue | Deadline, balance, tax type and appeal/response rights. | Contact LDR quickly through official numbers or LaTAP. |
Louisiana DOR Office Visits: Baton Rouge, Regional Offices, Hours and No-Cash Reminder
Louisiana DOR lists office locations and appointment resources. In-office visits are generally available from 8:00 a.m. to 4:30 p.m., Monday through Friday, while phone support hours differ. LDR also announced that the Baton Rouge office stopped accepting cash payments effective November 1, 2025.
Bring records before visiting
- Government photo ID.
- Notice letter and envelope.
- LaTAP login/account details.
- Tax return copies and filing confirmation.
- Payment confirmations and bank records.
- Business FEIN, revenue account number and Secretary of State details.
Call-first strategy
Use 855-307-3893 before visiting when possible. Phone support is Monday through Thursday 8:00 a.m.–4:20 p.m. and Friday 9:00 a.m.–4:20 p.m. Office visit services, appointment rules and accepted payment methods can change.
Louisiana Department of Revenue Phone Numbers and Contact Details
Choose the correct phone number before calling. Prepare your SSN or FEIN, tax year, refund amount, filing status, LaTAP account, notice, tax type and payment details.
| Need | Official contact | Hours / notes |
|---|---|---|
| General LDR assistance | 855-307-3893 | Monday–Thursday 8:00 a.m.–4:20 p.m.; Friday 9:00 a.m.–4:20 p.m. |
| Individual refund automated status | 888-829-3071 | Available 24 hours a day. |
| Individual refund local automated status | 225-922-3270 | Available 24 hours a day. |
| Electronic filing help desk | 225-219-2488 | Use for certain electronic filing or eFax assistance. |
| Sales tax / direct marketer questions | 855-307-3893 | LDR also lists Sales.Inquiries@la.gov for sales inquiries. |
| Baton Rouge Headquarters | 617 North Third Street, Baton Rouge, LA 70802 | Verify office visit hours and payment rules before visiting. |
Louisiana DOR FAQs
Visible FAQs below match the FAQPage schema included at the end of this article.
What is the official Louisiana Department of Revenue website?
The official Louisiana Department of Revenue website is revenue.louisiana.gov.
What is LaTAP?
LaTAP is Louisiana Taxpayer Access Point, the official online portal for many Louisiana state tax filing, payment and account actions.
Where do I log in to LaTAP?
You can log in to LaTAP at latap.revenue.louisiana.gov.
When are 2025 Louisiana individual income tax returns due?
Louisiana individual income tax returns for tax year 2025 are due May 15, 2026.
What is Louisiana’s individual income tax rate for 2026?
For taxable periods beginning on or after January 1, 2025, Louisiana individual income tax is a flat 3%.
What is Louisiana’s state sales tax rate?
Effective January 1, 2025, Louisiana’s state sales tax rate is 5%, with local taxes and special-rate items still important.
When are Louisiana sales tax returns due?
Louisiana sales tax returns and payments are due on or before the 20th day of the month following the close of the calendar month or quarter.
How do I check my Louisiana tax refund?
Use LDR’s Where’s My Refund tool or log in to LaTAP to view refund status and notices.
What information do I need to check a Louisiana refund?
You need your Social Security number, filing status and refund amount to check Louisiana refund status.
How long should I wait before checking my Louisiana refund?
LDR says to allow at least 4 weeks for electronically filed returns and 8 weeks for paper returns before checking refund status.
What is the Louisiana refund phone number?
You can check individual income refund status by calling 888-829-3071 or 225-922-3270. These automated numbers are available 24 hours a day.
What is the Louisiana Department of Revenue phone number?
The main Louisiana Department of Revenue phone number is 855-307-3893.
What are Louisiana DOR phone hours?
LDR phone hours are Monday through Thursday 8:00 a.m. to 4:20 p.m. and Friday 9:00 a.m. to 4:20 p.m.
What is Louisiana’s corporation income tax rate?
For taxable periods beginning on or after January 1, 2025, Louisiana corporation income tax is a flat 5.5%.
Is Louisiana corporation franchise tax repealed?
Yes. Corporation franchise tax has been repealed for franchise tax periods beginning on or after January 1, 2026.
Does LDR handle Louisiana business entity formation?
No. Business entity records are generally handled by the Louisiana Secretary of State, while LDR handles state tax accounts.
How do I register a business with Louisiana DOR?
Use LDR’s Business Registration guidance and LaTAP after Secretary of State registration where applicable, or to add additional revenue accounts.
Do Louisiana businesses need local sales tax registration too?
Often yes. Louisiana businesses should check parish and municipal local sales tax collectors in addition to state LDR filing.
Do special event vendors need Louisiana sales tax registration?
Special event vendors should check state LDR requirements and local taxing authorities before fairs, festivals or temporary events.
Does Louisiana require electronic filing for business taxes?
Beginning January 1, 2026, LDR expanded electronic filing and payment mandates for business tax returns, forms, payments and fees, including all withholding taxes and most sales and use taxes.
Does Louisiana DOR accept cash payments?
LDR announced that the Baton Rouge office stopped accepting cash payments effective November 1, 2025. Verify accepted payment methods before visiting.
Who handles Louisiana property tax bills?
Property tax bills are usually handled locally by parish sheriffs, tax collectors or local officials, not through the normal LDR LaTAP filing process.
Who handles Louisiana property assessments?
Parish assessors usually handle property assessments, values and homestead exemption records.
What should I do if I receive an LDR notice?
Read the notice, identify the tax type, year, deadline and requested action, then respond through official LDR or LaTAP instructions.
What should I prepare before calling Louisiana DOR?
Prepare your SSN or FEIN, tax year, refund amount, filing status, LaTAP account details, notice, tax type and payment records.
Is this website the official Louisiana DOR website?
No. This is an independent informational guide. Use official Louisiana DOR and LaTAP pages for filing, payments, account access and legal tax decisions.
Final Recommendation: Use This Page as Your Louisiana DOR Roadmap
Start here to understand the correct Louisiana tax path, then complete sensitive actions only through official Louisiana Department of Revenue and LaTAP pages. For individuals, remember the May 15, 2026 deadline for 2025 returns and the flat 3% rate for periods beginning in 2025. For businesses, verify state and local sales tax, LaTAP access, e-filing mandates, withholding, corporate tax and parish/local obligations before filing.
Last editorial update: June 5, 2026. Verify final filing, payment, refund, rate, local tax, office and legal details on official Louisiana DOR pages.