Two S-corp owners. Same business. Same million dollars in gross income. Owner A pays himself a $50,000 salary. His Section 199A deduction: $25,000. Owner B pays himself $285,714. His deduction: $142,857.
Right. Same law. Same year. Same IRS. The gap is $117,857 in free deduction. Owner A left it on the table because nobody told him his salary is a dial.
The Two-Way Valve
Look. Section 199A gives you a deduction worth 20% of your Qualified Business Income. That is the profit your S-corp kicks off.
But above a certain income, the IRS caps that deduction. The cap is the greater of two numbers: 50% of the W-2 wages your business pays, or 25% of wages plus 2.5% of your depreciable business property. This article covers the wage-only test. If your shop owns heavy equipment, real estate, or other depreciable assets, the property-based formula may give you a higher cap and a different optimal salary.
Your salary is the only W-2 wage in most S-corps. So it does two things at once. Every dollar you add to your paycheck shrinks your profit. That shrinks the pool the 20% applies to. But that same dollar raises your W-2 wages. That raises the cap.
Two pipes. One pushes water out. One pushes water in. They fight each other inside the same dollar.
Set the dial too low, and the cap chokes your deduction. Set it too high, and you’ve eaten the profit the deduction feeds on. There is one spot where the two forces cancel out.
Put This Next to Your Grocery Receipt
For Families Doing the Math at the Kitchen Table
Take your last grocery receipt and look at the number at the bottom. It keeps growing, doesn’t it? Faster than paychecks. Faster than savings accounts.
Most financial newsletters pretend that is not the real story in America. I will not.
So here is a kitchen-table test.
One question, honestly answered: could your family use an extra six figures over the next couple of years?
If the answer is yes, this letter is worth three more minutes.
Elon Musk — the man behind the cars and the rockets — has patented a new kind of AI. He calls it “an infinite money glitch” and predicts it will launch a brand-new industry growing more than 7 million percent.
I have followed setups like this for thirty years. The last one gave everyday folks a chance to turn $10,000 into as much as $366,000 in about 14 months.
The Wall Street Journal now calls breakthroughs like this “the last chance to amass generational wealth.”
No guarantees exist in markets — anyone who says otherwise is selling something.
What I offer is a free briefing in plain English: the invention, the numbers, and one little-known company at the center of it.
Judge it yourself.
P.S. The window Musk himself set closes at the end of this month. The receipt will still be there tomorrow. This may not.
The Threshold Line
Below $403,500 joint or $201,750 single in taxable income, the valve does not matter. You get the full 20%. No cap. No wage test. Enjoy.
Above that line, the wage limitation kicks in. Now the dial is the whole game.
Most articles about the QBI deduction stop right here. They tell you the cap exists. They do not tell you where to set it.
The 2/7 Rule
The fraction is 2/7. That is 28.57% of your gross business income. It is the point where the two pipes balance.
Here is Adam. He owns an S-corp. His business is not a service trade. Not a lawyer, doctor, or consultant. Business income: $800,000. He paid himself $90,000.
His deduction is capped at 50% of his wages. That is $45,000.
Now he runs the 2/7 math. He raises his salary to $228,571. His new cap: 50% of $228,571. That is $114,285.
He gained $69,285 in deduction. By paying himself more.
I mean. Read that again. He got a bigger tax break by taking a bigger paycheck. The two pipes stopped fighting.
The Objection
“But more salary means more payroll tax.”
Sure. The 199A deduction shelters 20 cents on every dollar. FICA costs you 15.3 cents. That is a spread of almost 5 points.
And once your salary clears the Social Security wage base ($184,500 in 2026), the FICA cost drops to just the Medicare slice. Above $200,000 single ($250,000 joint), that is 3.8%. The spread opens to over 16 points.
The math wins. It is not close.
The Wall
Some businesses get nothing here. The IRS calls them Specified Service Trades or Businesses. SSTBs. Lawyers. Doctors. Financial advisors. Consultants.
If you run one and your income clears the upper threshold, the deduction goes to zero. No salary trick fixes it. The valve only turns for non-SSTB shops. Architects. Engineers. Manufacturers. Contractors. Distributors.
Know which side of that wall you stand on before you touch the dial.
The Dial Is Permanent Now
The One Big Beautiful Bill Act, signed July 4, 2025, killed the sunset on Section 199A. The deduction does not expire. It is in the code for good.
That changes the stakes. A wrong dial setting is not a one-year mistake anymore. It compounds. Every quarter you leave the salary in the wrong spot, the lost deduction stacks up. Forever.
The Guardrail
One constraint. The IRS requires your salary to be reasonable compensation for the work you actually do. The 2/7 number is a ceiling on the deduction math, not a permission slip. If the market rate for your role is $150,000 and the formula says $228,571, the formula does not override the market. If the market rate is $300,000 and the formula says $228,571, you cannot drop to the formula number. Set the dial inside the range the IRS considers reasonable, then optimize within that range.
The Close
The tax code wrote two rules that fight each other inside the same dollar of your paycheck. One fraction makes them stop. 2/7. Your CPA may not have run it.
You just did.
