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Business

August 24, 2025

Specified Service Trade or Business (SSTB)

Also known as: Specified Service, SSTB

Key Information

a Specified Service Trade or Business (SSTB) is a business primarily involved in providing services within specific fields.

These fields include:

  • Health
  • Law
  • Accounting
  • Consulting
  • Athletics
  • Actuarial science
  • Performing arts
  • Financial services
  • Investing and investment management
  • Any business where the main asset is the reputation or skill of its employees or owners

Tax Impact

The designation of a business as an SSTB impacts how the Qualified Business Income (QBI) deduction is claimed. When an individual’s taxable income:

  • Is below a specific threshold, business income from an SSTB is treated like any other business for QBI deduction purposes.
  • Falls within a specific range, the QBI deduction is gradually phased out for business income from an SSTB.
  • Exceeds a specific threshold, business income from an SSTB is excluded from claiming the QBI deduction altogether.

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References

IRS Tax Cuts and Jobs Act, Provision 11011 Section 199A