800-829-1040
Individual tax account questions. Weekdays, generally 7 a.m.–7 p.m. local time.
Official telephone assistance →Save the numbers worth finding twice
IRS, Taxpayer Advocate and California FTB help—organized by the reason you are calling.
Use the number printed on a genuine notice when it is specific to your case. For general help, start with the official public line or online account below.
Verified against official agency sources October 30, 2026. Hours and routing can change; confirm on the linked government page.
Before calling
Have the account facts, authorization and notice ready.
- The complete notice or letter
- Taxpayer name and identifying information requested by the agency
- The affected form and tax period
- The filed return and relevant payment records
- Form 2848, 8821, FTB POA or TIA when someone else will discuss the account
- A written question and call log
Privacy boundary: Use the telephone number or web address printed on the notice only after confirming it at IRS.gov or FTB.ca.gov. Do not give tax credentials, payment information or identity documents to an unsolicited caller.
Internal Revenue Service
Public IRS telephone numbers.
800-829-4933
Business and specialty tax questions. Weekdays, generally 7 a.m.–7 p.m. local time.
Official telephone assistance →877-829-5500
Exempt-organization and employee-plan questions, applications, status and account notices.
Official business contacts →844-545-5640
Schedule help at an IRS Taxpayer Assistance Center after checking available local services.
Find a local IRS office →800-908-4490
Identity Protection Specialized Unit. A 5071C, 4883C or 5747C recipient should follow the verification route in that letter.
IRS identity-theft help →800-908-9946
Automated individual transcript request. Online account is generally the better starting point when available.
Get a transcript →800-829-1954
Automated refund information. For amended returns, use 866-464-2050.
Where’s My Refund? →267-941-1000
Non-toll-free international service. Check current hours and topic routing before calling.
International IRS services →866-562-5227
IRS disaster hotline. Check whether automatic filing or payment relief applies to the affected area.
Current disaster tax relief →800-829-3676
Order IRS tax forms and publications when an online copy is not sufficient.
Forms and instructions →An independent voice inside the IRS
Taxpayer Advocate Service
TAS may help when an IRS problem has not been resolved through normal channels, is causing financial difficulty, or presents qualifying systemic or rights concerns. Its service is free.
Case intake877-777-4778
California Franchise Tax Board
Public FTB telephone numbers.
800-852-5711
Live help for California income-tax questions. Outside the U.S.: 916-845-6500.
Official FTB contacts →800-338-0505
Available 24/7 for forms, refund status, payments and balance-due information.
Official FTB contacts →800-353-9032
Registration, activation, login, address and account-access help. Outside the U.S.: 916-845-2829.
MyFTB help →800-689-4776
Personal collection matters including levy, withholding order, garnishment and payment-plan questions.
FTB collection contacts →888-635-0494
Corporation, exempt-organization, partnership and LLC collection matters.
FTB collection contacts →888-792-4900
California nonresident, real-estate and backup-withholding questions.
Official FTB contacts →866-563-2375
When another government agency intercepted a state refund or payment.
Official FTB contacts →711
Or 800-735-2929 for callers with hearing or speaking limitations.
Official FTB contacts →After ordinary FTB channels
FTB Taxpayer Advocate Services
The FTB advocate may help with qualifying unresolved account, collection, wage-garnishment, hardship, rights or procedural issues after normal remedies have been exhausted.
Advocate hotline800-883-5910
Fax for FTB 914 requests: 916-843-6022
Professional-only routing
Numbers used by authorized tax professionals.
These are not substitutes for public taxpayer lines. The practitioner must meet the agency’s authorization and authentication requirements.
IRS Practitioner Priority Service
For tax professionals with valid third-party authorization, including Forms 2848, 8821 or 8655. PPS handles account issues, notices, transcripts and authorized client matters within its scope.
IRS PPS requirements →FTB Tax Practitioner Hotline
For tax professionals working on California account, collection, notice and authorization issues. Weekdays, generally 8 a.m.–5 p.m. Pacific.
FTB tax-professional services →Official online starting points
Often faster than calling.
IRS Individual Online AccountBalances, payments, transcripts, notices and authorizationsIRS Business Tax AccountBusiness balances, payments, records and notices when availableIRS Tax Pro AccountPOA/TIA requests and authorized taxpayer informationIRS paymentsOfficial payment methods and payment plansMyFTBCalifornia balances, payments, notices, chat and secure messagesFTB wait timesCurrent phone and processing estimatesIRS and FTB notice-code helperPlain-English orientation with official linksIRS representationWhen self-help is no longer enough