The Qualified Business Income deduction is now permanent and worth up to 20% off your taxable income — but if you're a consultant, that deduction can vanish entirely above a specific income level. Most other self-employed professionals don't face this cliff.
If you're an independent consultant or 1099 professional anywhere in Frederick County or central Maryland, recent tax legislation made one of your most valuable deductions permanent — but it also comes with a consulting-specific trap that doesn't apply to many other self-employed fields.
The Qualified Business Income deduction, also called the Section 199A deduction, lets eligible self-employed individuals and pass-through business owners deduct up to 20% of their qualified business income. Recent legislation made this deduction permanent going forward, and starting in 2026, added a new minimum: if your qualified business income is at least $1,000 and you materially participate in the business, you're guaranteed at least a $400 deduction even if the standard 20% calculation would produce less.
This deduction reduces your income tax — it does not reduce your self-employment tax, which is calculated separately on your net earnings before QBI is applied. The two are genuinely different calculations on different lines of your return, and it's worth understanding that distinction rather than assuming QBI shrinks your whole tax bill equally.
Here's what makes consulting different from many other self-employed fields: the tax code designates certain service businesses as "Specified Service Trades or Businesses," and consulting is explicitly named on that list, alongside law, accounting, financial services, and health care. If your taxable income exceeds the upper threshold for your filing status, the QBI deduction phases out completely for an SSTB — not partially, but entirely.
For 2026, the phase-out range runs from $201,775 to $276,775 for single filers, and from $403,500 to $553,500 for joint filers. Below the lower number, you get the full 20% deduction. Above the upper number, consultants get none of it. In between, the deduction phases down gradually.
This is the detail that catches successful consultants off guard. A graphic designer, web developer, or real estate agent with the exact same income keeps their full QBI deduction regardless of how much they earn, because those fields aren't classified as SSTBs. A consultant at the same income level can lose the deduction entirely.
| Filing Status | Full Deduction Below | Fully Phased Out Above |
|---|---|---|
| Single | $201,775 | $276,775 |
| Married Filing Jointly | $403,500 | $553,500 |
Since QBI can disappear for high-earning consultants regardless of structure, the more dependable lever becomes reducing self-employment tax through an S-Corp election. By splitting income between a reasonable W-2 salary and a distribution, an S-Corp owner pays self-employment tax only on the salary portion. The general rule of thumb is that this starts making sense once net profit is consistently in the $80,000 to $100,000 range, where the tax savings outweigh the added cost of payroll processing and a separate corporate return.
There's a secondary wrinkle worth knowing: for S-Corp owners, QBI is calculated on your share of business income after your salary is subtracted — meaning a lower reasonable salary leaves more income classified as QBI, while a higher salary reduces QBI but also reduces self-employment tax exposure differently. Getting the balance right between these two levers is exactly the kind of calculation worth running with an actual CPA rather than guessing.
As a 1099 consultant, no one withholds tax from your payments, which means you're generally required to make quarterly estimated payments if you expect to owe $1,000 or more for the year. The safe harbor rule — paying at least 100% of last year's total tax liability (110% if your prior-year adjusted gross income exceeded $150,000), spread across four payments — protects you from underpayment penalties even if your estimate turns out to be off.
At Mercer Flanagan, we work with independent consultants and 1099 professionals throughout Frederick County and central Maryland to plan around the SSTB phase-out, evaluate whether an S-Corp election makes sense, and keep quarterly estimated payments on track.
Book a free consultation and we'll walk through your specific numbers — no pressure, no obligation.
Book a Free ConsultationNo. QBI only reduces income tax. Self-employment tax is calculated separately on your net self-employment earnings before the QBI deduction is applied, so the two need to be modeled independently.
Generally, yes, if your work is genuinely consulting in nature. The tax code specifically names consulting alongside law, accounting, and financial services as Specified Service Trades or Businesses subject to the QBI phase-out at higher income levels.
Often yes. Even without QBI, an S-Corp election can still meaningfully reduce self-employment tax by splitting income between salary and distributions, which is a separate benefit from QBI entirely.
By Roy Cogliandolo, CPA · Mercer Flanagan · February 22, 2026
This article is for general informational purposes and reflects tax rules current as of 2026. Income thresholds are adjusted periodically — confirm current figures with your CPA before relying on this information.