Amendments, Refunds, and Payments

Where’s My Amended Return?
Where’s My Refund?
View Tax Account
Direct Pay
Online Payment Agreement
Offer in Compromise Pre-Qualifier

Credits and Deductions

Earned Income Tax Credit Assistant
Exempt Organizations Select Check

Calculators

Tax Withholding Estimator
Sales Tax Calculator

Tax Payer Assistance

Taxpayer Assistance Center Locator
Understanding Your IRS Notice or Letter

Tax Forms For Businesses

Employer Identification Number (EIN)
Tax Calendar
Electronic Federal Tax Payment System
Publication 334
Business Tax Credits

California Specific

California Franchise Tax Board
California Refund Status
California Employment Development Department
Franchise Tax Board Payment Plans
Contra Costa County Property Taxes

Tax Forms for Individuals

Form W-4 employee withholding
Form 1040-V Payment Voucher
Form 1040-ES
Offer in Compromise Pre-Qualifier
Form 656 Booklet Offer in Compromise
Form 9465 Installment Agreement Request
Form 8821
Pub 17
Insolvency worksheet
Form 8857 Innocent Spouse Relief

Other Links

Social Security Administration
Health Care.gov
Medicare.gov
FAFSA Student loan
Affordable Health Care Act
Health Tax Credit Estimator
Annual Credit Report
Tax deductions for rental property
SBA Portal
Applying for 501 (c)(3) Tax Exempt Status
US Department of Labor Employment Law Guide