Federal / IRS
IRS Resources
The most-used IRS links for business owners. Payments, refund status, EIN applications, and tax calendars.
Where's My Refund?
Check the status of your federal tax refund. Updated daily, usually within 24 hours of e-filing.
Make a Federal Tax Payment
Pay estimated taxes, balance due, or other federal tax obligations online.
EFTPS: Electronic Federal Tax Payment
Schedule and make federal tax payments. Required for many business tax deposits.
Apply for an EIN
Get an Employer Identification Number online. Free, immediate, directly from the IRS.
IRS Tax Calendar for Businesses
Key federal tax deadlines for the current year. Quarterly estimated taxes, filing dates, and more.
Standard Mileage Rates
Current IRS mileage rate for business, medical, and charitable driving.
Federal / IRS
IRS Resources
State Tax Portals
State Tax Payments & Refund Trackers
Select your state to find the official payment portal and refund tracker.
Common Forms
Frequently Used Tax Forms
Direct PDF download links from the IRS. Always the current revision.
W-4
Employee's Withholding Certificate
W-9
Request for Taxpayer Identification Number
1099-NEC
Nonemployee Compensation
1099-MISC
Miscellaneous Information
SS-4
Application for Employer Identification Number
Form 941
Employer's Quarterly Federal Tax Return
Form 940
Employer's Annual Federal Unemployment (FUTA) Tax Return
1040-ES
Estimated Tax for Individuals (vouchers)
Form 4868
Application for Automatic Extension of Time to File
Form 8832
Entity Classification Election
Form 2553
Election by a Small Business Corporation (S-Corp)
Form I-9
Employment Eligibility Verification
Idaho
Idaho State Tax Resources
Quick links specific to Idaho business owners.
Idaho Refund Status
Check the status of your Idaho state income tax refund.
tax.idaho.gov
Make an Idaho Tax Payment
Pay Idaho income tax, withholding, sales tax, and other state obligations online.
tax.idaho.gov
Idaho State Tax Commission
Official Idaho tax authority. Forms, instructions, and online services.
tax.idaho.gov
Idaho Secretary of State (Business)
Search business filings, register a new entity, or file annual reports.
sos.idaho.gov
Idaho Withholding Tax
Register for withholding, file returns, and make withholding payments.
tax.idaho.gov
Idaho Unemployment Tax
Register, file, and pay Idaho unemployment insurance tax.
labor.idaho.gov
Calculators & Tools
Free Business Tools
Tools built by Vantage Advisors and trusted third-party calculators.
S-Corp Tax Savings Calculator
See how much you could save in self-employment taxes by electing S-corp status. 2026 rates, all 50 states, downloadable summary.
Vantage Tool →
QBI Deduction Calculator
Estimate your Section 199A deduction for 2025 or 2026, including the SSTB phase-out, W-2 wage limit, and Idaho state-tax impact.
Vantage Tool →
Paycheck Calculator
Estimate net pay after federal and state taxes, Social Security, and Medicare. Salary or hourly.
ADP.com