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Compliance Library

Stay compliant, deadline by deadline.

Regulatory documents, compliance checklists, and the filing deadlines that apply to most taxpayers and small businesses, in one place for our clients.

Regulatory documents

The official sources, one click away.

Forms, publications, and agency guidance we reference most often. Each link opens the agency's own page so you are always reading the current version.

Compliance checklists

Work through these before you file.

Use them before a deadline, before a records request, or before an IRS notice arrives. Open a checklist to read it line by line.

  • Photo ID and Social Security numbers for everyone on the return
  • W-2s, 1099s, 1099-Ks, and any other income forms received
  • Last year's filed return, federal and state
  • Mortgage interest, property tax, and charitable giving records if you itemize
  • Childcare, education, and student loan interest statements
  • Form 1095-A if anyone on the return had marketplace health coverage
  • Records of estimated tax payments made during the year
  • Bank account and routing numbers for direct deposit or debit

Filing deadlines

The 2027 filing calendar.

Key dates for the 2026 tax year, for individuals and small businesses.

January 15, 2027

Individuals & businesses

Fourth-quarter 2026 estimated tax payment

The final 2026 estimated payment for anyone paying quarterly, including self-employed taxpayers.

January 31, 2027

Employers & payers

W-2 and 1099 forms issued

W-2s and most 1099 series forms must be sent to recipients and filed with the IRS.

March 15, 2027

Partnerships & S corporations

Calendar-year 1065 and 1120-S returns, or an extension

Flow-through entity returns are due and pass-through K-1s are issued to owners.

April 15, 2027

Individuals & C corporations

2026 individual returns, first-quarter 2027 estimated payment, and calendar-year 1120 returns

Also the deadline for FBAR (FinCEN 114) filings and 2026 IRA and HSA contributions.

May 15, 2027

Texas businesses

Texas franchise tax report for most entities

The annual franchise (margin) tax report and payment for Texas entities.

June 15, 2027

Individuals & businesses

Second-quarter 2027 estimated payment

Also the return deadline for US citizens and residents living outside the country.

September 15, 2027

Individuals & businesses

Third-quarter 2027 estimated payment

Also the extended deadline for calendar-year partnership and S-corporation returns.

October 15, 2027

Individuals

Extended 2026 individual returns

The final filing deadline when Form 4868 was filed. The tax owed was still due in April.

  • •A deadline that falls on a weekend or a federal holiday moves to the next business day.
  • •An extension to file is not an extension to pay. Tax owed for 2026 is still due April 15, 2027, even if the return is filed later.
  • •Estimated payment dates apply when income is not covered by withholding, so self-employed clients should mark all four quarters.

This library is general information for TBG Shoppe clients, not individualized tax, legal, or financial advice. Your situation may carry different requirements or deadlines.

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