Olmeca Tax Services

Resources

Dates and documents.

01

Key deadlines

2026 – 2027
DateWhat's dueApplies to
Oct 15, 2026Extended individual returns (Form 1040) dueAnyone who filed an extension
Jan 15, 2027Q4 estimated tax paymentSelf-employed, 1099 workers
Jan 31, 2027W-2s and 1099-NECs delivered to workersEmployers
Mar 15, 2027Partnership and S-corp returns (1065, 1120-S)LLCs, partnerships, S-corps
Apr 15, 2027Individual returns and Q1 estimatesEveryone

Dates can shift when they fall on a weekend or holiday, or when the IRS grants disaster relief. Confirm with us or on irs.gov.

02

What to gather

Bring what applies

Everyone

  • Photo ID and Social Security card or ITIN letter
  • Same for your spouse and dependents
  • Last year's tax return
  • Bank account and routing number for direct deposit
  • Any IRS or state letters you've received

Income

  • W-2s from every employer
  • 1099-NEC, 1099-K, 1099-MISC
  • 1099-INT, 1099-DIV, 1099-B
  • Rental income and expense records
  • Unemployment, Social Security, retirement (1099-G, SSA-1099, 1099-R)

Deductions & credits

  • Childcare provider name, address and tax ID
  • Tuition statements (1098-T) and student loan interest
  • Mortgage interest and property tax (1098)
  • Health coverage forms (1095-A)
  • Business mileage, home office and expense totals

Ready to make tax season easier?

Choose a firm that knows your name, not just your tax return. Tell Olmeca what you need and we'll come back with a straight answer on price and timing.