The QBI Deduction: Who Gets It, Who Loses It

The qualified business income deduction lets many owners of pass-through businesses deduct up to 20% of their business income. The interesting question is not what it is — it is who keeps it, because eligibility phases out by income, and above the threshold your profession decides the answer.

Two owners with identical profits can get entirely different results: one keeps the full deduction, the other loses every dollar of it, purely because of what their business does.

In this article, we set out the three bands that decide eligibility, which professions are restricted, where real estate sits, and the planning levers that move an owner from one band to another.

1. Below the Threshold, Almost Everyone Qualifies

The deduction applies to qualified income from pass-through businesses — sole proprietorships, partnerships, S corporations — and not to C corporation profits or to wages.

Below a taxable-income threshold that is adjusted each year, the deduction is generally available regardless of what the business does. A consultant, a designer and a landlord with qualifying activity are treated alike. The IRS summarises the structure in its QBI deduction overview.

The deduction is taken against taxable income rather than inside the business, which means it does not reduce self-employment tax — a distinction that changes how it interacts with the entity questions covered in our article on S corp and LLC choices.

Qualified income also excludes several items owners assume are covered: capital gains, most dividends and interest, and reasonable compensation paid to the owner. The deduction attaches to the operating profit of the business, not to everything that flows through the return.

For a New York City owner there is a further point of geometry. The deduction is federal, so it does not reduce the city's business taxes — the 4% unincorporated business tax or the 8.85% corporate rate run on their own bases, as our article on the NYC entity comparison sets out.

2. Above It, Your Profession Decides

Above the threshold, the rules split businesses into two groups. A specified service trade or business — a category that includes health, law, accounting, consulting, financial services and businesses relying on the reputation or skill of the owner — phases out of the deduction entirely as income rises through a band above the threshold.

Every other business keeps the deduction above the threshold, but subject to limits based on W-2 wages paid and, in some cases, depreciable property held. A profitable business with no payroll can find its deduction capped by the wage test alone.

As the table shows, the phase-out is the whole game for service professionals: a consultant just under the band keeps a five-figure deduction that a consultant just over it loses completely. The IRS publishes the detailed rules in its Section 199A FAQs.

The definitions are narrower than their labels suggest, and the margins are where disputes live. Consulting means advice without implementation, so a firm that executes as well as advises may sit outside the category; reputation-or-skill is confined to endorsements, licensing of likeness and appearance fees rather than skilled work generally. Labels matter less than what the business actually sells.

3. Where Real Estate Sits

Real estate occupies a favourable position in this structure, in two respects.

The final regulations treat real estate agents and brokers as outside the restricted brokerage category, which the rules confine to securities brokerage — so a real estate professional above the threshold is tested under the ordinary wage and property limits rather than phased out. And rental real estate can itself generate qualified income where the activity rises to the level of a trade or business, helped in practice by a safe harbour with record-keeping and service-hour conditions.

Both positions are fact-dependent — whether a rental operation qualifies turns on the level of activity, and the safe harbour has specific conditions — so this is a determination to make with a CPA rather than to assume. For owners, it sits alongside the depreciation and expense positions covered in our article on IRS audits and records.

4. The Levers That Move the Answer

Because eligibility is measured against taxable income, anything that lowers taxable income can pull an owner back below the threshold or deeper into the deduction.

The largest movable piece for most owners is a deductible retirement contribution. A solo 401(k) contribution of tens of thousands of dollars can carry a service professional from inside the phase-out band to below the threshold — recovering a deduction that was otherwise lost, on top of the contribution's own value. The mechanics are in our article on solo 401(k) and SEP accounts.

Entity choice cuts the other way. S corporation wages paid to the owner are not qualified business income, so a larger salary shrinks the deduction's base while a smaller one enlarges it — one more variable in the salary question, pulling in the opposite direction from the payroll tax saving described in our article on the NYC entity comparison.

The wage limit creates a third lever for non-service businesses above the band. Because the deduction is capped by a percentage of W-2 wages paid, a business with no payroll can be capped at zero — and putting the owner on payroll through an S corporation can create the very wages the test wants, changing the answer. The interaction is intricate enough that it should be modelled, not assumed.

5. Final Thoughts

However, some treat the deduction as background noise — a line the software fills in. That is safe below the threshold, and expensive above it. Near the phase-out band, the difference between qualifying and not is measured in five figures, and it responds to decisions made before year end, not at filing.

The practical sequence: know which side of the threshold you sit on, know whether your trade is in the restricted category, and if you are near the band, price the retirement contribution that would carry you under it.

The thresholds change annually, the provision itself has been amended and extended over the years, and the service-business definitions are intricate at the margins — so confirm your own position with a US CPA before relying on any of this. If you are structuring a New York business and want the entity, salary and retirement decisions made with the deduction in view, speak with our team.

Reinvent NY provides business consulting, operational support, and coordination services. Legal advice and immigration filings are handled by independent licensed attorneys. Real estate services are provided through licensed professionals and applicable brokerage relationships. This article is for informational purposes only and does not constitute legal or investment advice.

More for business owners: NYC Unincorporated Business Tax vs S Corp, S Corp vs LLC for a New York Business, Estimated Tax for New York Business Owners.