IRS Resource Center

The official IRS tools you actually need

Refund trackers, payment portals, EINs, ITINs, and foreign-account rules, sorted by who you are. Each link goes straight to IRS.gov, and next to it is our plain-English guide on the topic.

For individuals For businesses International & NRI Upcoming deadlines

For individuals

Refunds, payments, and your records

Check where your money is, pay what you owe, and pull the documents lenders and visa offices ask for.

On IRS.gov

Official tools and pages, opening in a new tab

Where's My Refund?Track your federal refund status Where's My Amended Return?Status of a filed 1040-X Make a paymentDirect Pay, card, or EFTPS Payment plansSet up an installment agreement Your online accountBalances, payment history, and notices Get your tax transcriptIncome and return records for loans or visas Tax withholding estimatorCheck if your paycheck withholding is right Understand an IRS noticeLook up the letter you received Identity Protection PINStop fraudsters filing in your name Interactive Tax AssistantIRS answers to common tax questions

For businesses

EINs, payroll, and company filings

Everything an owner needs from the IRS, from forming the company to depositing payroll taxes and filing 1099s.

On IRS.gov

Official tools and pages, opening in a new tab

Apply for an EINFree employer identification number, online Business taxes overviewWhat your entity type owes, and when S corporationsElection rules and filing requirements Estimated taxesQuarterly payment rules and safe harbors Employment taxesPayroll deposit and filing requirements EFTPSPay federal business taxes electronically File 1099s with IRISThe IRS's free 1099 e-file portal Business tax accountYour company's balance and records online Self-employed tax centerRules for freelancers and sole props IRS tax calendarEvery federal due date for businesses

International & NRI

Visas, ITINs, and foreign accounts

For NRIs, H-1B and F-1 holders, and anyone with money outside the US: residency tests, treaties, and foreign reporting.

On IRS.gov

Official tools and pages, opening in a new tab

International taxpayersThe IRS hub for non-US situations Substantial presence testAre you a resident for tax purposes?Apply for an ITINTax ID for a spouse or dependents Tax treatiesTreaty benefits by country, including India FBAR reportingForeign accounts over $10,000 combined FATCA summaryForm 8938 vs FBAR, side by side Form 1040-NRThe return for nonresident aliens Forms & instructionsEvery federal form, straight from the source

Key federal deadlines

What's due next

Dates already account for weekends and holidays. State deadlines can differ.

Get reminders in the newsletter

15Oct

Extended 2025 returns due

Individuals on extension · Thursday, 2026

15Jan

Q4 2026 estimated payment

Self-employed & investors · Friday, 2027

1Feb

W-2s & 1099s due to recipients

Employers · Monday, 2027

15Mar

1120-S & 1065 returns due

S-corps & partnerships · Monday, 2027

15Apr

2026 returns & Q1 payment due

Everyone · Thursday, 2027

15Jun

Q2 2027 estimated payment

Self-employed & investors · Tuesday, 2027

Links on this page lead to IRS.gov and EFTPS.gov, official US government websites. Taxagon is not affiliated with the IRS.

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