QBI Aggregation for Freelancers With Multiple Businesses (2026): The Election That Rescues a Capped 199A Deduction

Published: August 2, 2026 · Reading time: 12 min

TL;DR: Once you clear the 2026 QBI phase-in range (thresholds ~$241,950 single / $483,900 MFJ, fully phased in at $291,950 / $583,900), a non-SSTB's deduction is limited to the greater of 50% of its W-2 wages or 25% of wages plus 2.5% of qualified property — and a profitable one-person business with no payroll hits a cap of $0. Aggregation under Reg. §1.199A-4 lets qualifying businesses pool QBI, wages, and property so the cap is applied to the group. In the worked example below it turns a $12,000 deduction into $36,000. Five tests must all pass, no SSTB may be in the group, at least two of three factors must be met, it's reported on Form 8995-A, Schedule B — and once made it binds you in future years. Below the threshold it does nothing.

Most freelancers meet Section 199A once, learn that they get 20% of their business profit as a deduction, and never think about it again. That's the right amount of attention if you're below the threshold, where the calculation genuinely is that simple — as our QBI deduction guide explains.

Above the threshold it stops being simple, and a specific, painful thing happens to freelancers who run more than one business: the deduction on the profitable one can be capped to zero because that business has no employees.

Aggregation is the fix. It is also one of the least-explained elections in the code, partly because it's genuinely restrictive and partly because it's routinely confused with something it isn't.

First: The Cap That Creates the Problem

Below the 2026 thresholds — approximately $241,950 single and $483,900 married filing jointly — none of this matters. Every qualifying freelancer takes 20% of QBI with no wage test, no property test, and no SSTB question.

Above the phase-in range (+$50,000 single / +$100,000 MFJ, so fully phased in at roughly $291,950 and $583,900), a non-SSTB business faces a hard limitation. Its deduction is the lesser of:

• 20% of that business's QBI, or
• the greater of (a) 50% of the W-2 wages the business paid, or (b) 25% of W-2 wages plus 2.5% of the unadjusted basis of qualified property (UBIA).

Read the second bullet again with a sole proprietor in mind.

A solo consultant-adjacent business with no employees and no equipment has W-2 wages of $0 and UBIA of $0. Both branches of the cap compute to $0. The deduction is $0 — not reduced, eliminated.

This is the problem an S-corp election is usually reached for: paying yourself a reasonable W-2 salary manufactures a wage base where there was none. Aggregation solves the same problem without adding a payroll — provided you already have one somewhere else. Wages you do pay are deducted on Schedule C Line 26 and simultaneously build the cap.

This is the half of §199A that gets lost. Not being an SSTB is genuinely valuable — an SSTB above the phase-out gets nothing at all — but a non-SSTB does not thereby get the full 20%. It still has to clear the wage and property cap, and a one-person business with no payroll clears nothing.

What Aggregation Actually Does

Aggregation under Reg. §1.199A-4 treats two or more trades or businesses as one for §199A purposes. The pooled group combines its QBI, its W-2 wages, and its UBIA, and the cap is applied once, to the total.

That is the entire mechanism. It is narrower than people assume, and it is worth being precise about what it does not do:

If your two businesses are simply "one makes money, one loses money," you already have the netting you want and you don't need to elect anything.

Worked Example: $12,000 Becomes $36,000

A freelance photographer, single, with $310,000 of taxable income — above the $291,950 full phase-out, so the cap applies at full strength. Two genuinely separate businesses, neither an SSTB:

Without aggregation — the cap runs business by business

Business A:

• 20% × $120,000 = $24,000
• Cap: greater of (50% × $0 = $0) or (25% × $0 + 2.5% × $0 = $0) → $0
• Deduction: $0

Business B:

• 20% × $60,000 = $12,000
• Cap: greater of (50% × $80,000 = $40,000) or (25% × $80,000 + 2.5% × $200,000 = $20,000 + $5,000 = $25,000) → $40,000
• Deduction: $12,000 (the 20% figure, since it's below the cap)

Total deduction: $12,000. Business A — the one earning two thirds of the profit — contributes nothing.

With aggregation — one pooled calculation

• Combined QBI: $120,000 + $60,000 = $180,000 → 20% = $36,000
• Combined W-2 wages: $80,000. Combined UBIA: $200,000
• Cap: greater of (50% × $80,000 = $40,000) or (25% × $80,000 + 2.5% × $200,000 = $25,000) → $40,000
• Deduction: lesser of $36,000 and $40,000 → $36,000

At a 32% marginal rate, the election is worth about $7,680 in a single year. Business B's unused wage capacity — $40,000 of cap against only $12,000 of need — was sitting idle. Aggregation moves it where it does work.

(The overall §199A limit of 20% of taxable income less net capital gain also applies: 20% × $310,000 = $62,000, comfortably above $36,000, so it isn't binding here. Check it in your own numbers — it sometimes is.)

The Five Tests, in Plain Language

All five must be satisfied. Reg. §1.199A-4(b)(1):

1. Common ownership of 50% or more

The same person or group of persons must own 50% or more of each business, directly or by attribution under §267(b) or §707(b). Attribution pulls in spouses, children, grandchildren, parents, and certain related entities — which sometimes helps, letting a spouse's ownership count toward the test.

For a sole proprietor running several Schedule C businesses, this is automatic: you own 100% of each.

2. Held for a majority of the year, including the last day

The 50% ownership must exist for a majority of the taxable year and specifically must include the last day of the year. A business acquired in November fails the majority-of-year part for that first year; it can be added to the aggregation later.

3. Same taxable year

All items must be reported on returns with the same taxable year, ignoring short taxable years. Calendar-year Schedule C businesses satisfy this without effort.

4. No SSTB in the group

If any business in the proposed group is a specified service trade or business, the aggregation fails. Not partially — entirely.

SSTBs include health, law, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage services, and any business whose principal asset is the reputation or skill of one or more owners — the full test, with the freelance edge cases, is in our QBI deduction guide.

This bar excludes a great many freelancers. A consultant who also runs a rental business cannot aggregate them. Note, though, that the SSTB test is applied per trade or business — if two activities are genuinely separate businesses with separate books, customers, and operations, an SSTB determination for one does not automatically taint the other. Whether they are genuinely separate is a facts-and-circumstances question worth documenting.

5. Two of these three factors

The businesses must satisfy at least two of:

In the worked example above, the photography and equipment-rental businesses plausibly satisfy all three: they're customarily bundled, they share a studio and back office, and the rental arm largely serves the shoot arm.

Write the reasoning down in the year you elect. Two or three sentences per factor, filed with the return. This is the part an examiner asks about, and it is much harder to articulate convincingly four years later.

Reporting It: Form 8995-A, Schedule B

Aggregation is disclosed on Schedule B of Form 8995-A, attached each year you rely on it. The annual statement identifies the businesses in the group and explains how the requirements are met.

Two consequences worth knowing:

• Attach it every year, not just the first. The disclosure is annual. Where an individual fails to attach the required statement, the IRS may disaggregate the businesses and recompute the deduction business by business — which, in the example above, would cost $24,000 of deduction for a missing attachment. Worse, the regulation then bars re-aggregating for the following three taxable years.
• An individual may aggregate businesses operated directly or through a relevant pass-through entity (RPE). If an RPE has already aggregated at its own level, you cannot break that aggregation apart — you may only add to it.

The Commitment You're Making

Reg. §1.199A-4(c)(1) is the part to read before electing: once you aggregate, you must consistently report the aggregated trades or businesses in all subsequent taxable years.

This is not an annual optimisation. You may add a newly created or newly acquired business that meets the tests. You may stop aggregating only when the group no longer satisfies the requirements — ownership drops below 50%, a business becomes an SSTB, a business is sold — and you report the change when it happens.

So run the numbers on the years ahead, not just this one:

• Planning to hire in the low-wage business? Its own cap improves, and the aggregation matters less — but it doesn't hurt.
• Planning to end payroll in the high-wage business? The group's pooled wage base collapses, and you're locked into a group whose combined cap is now the binding constraint on all of it.
• Planning to sell one of them? Model the exit year specifically.
• Income likely to fall below the threshold? Aggregation becomes irrelevant in those years — harmless, but no longer worth much.

When It's Not Worth Doing

Failing any of the five tests takes the election off the table, and the two cases above — below the threshold, or netting is all you wanted — mean it buys nothing. There is one more worth naming, because it is the case where every test passes and the election still does no work:

Every business already has ample W-2 wages of its own. Each clears its own cap unaided, so pooling adds nothing. Aggregation is only valuable when the wage base and the profit sit in different businesses.

Frequently Asked Questions

What is QBI aggregation?

Aggregation is an election under Reg. §1.199A-4 that lets you treat two or more separate trades or businesses as a single trade or business for purposes of the Section 199A qualified business income deduction. Its only real effect is on the W-2 wage and qualified property limitation that applies above the taxable income threshold: aggregated businesses pool their QBI, their W-2 wages, and their unadjusted basis in qualified property, so a business with profit but no payroll can borrow the wage base of a business that has payroll. It is reported on Form 8995-A, Schedule B, and it does nothing at all if your taxable income is below the threshold.

What are the requirements to aggregate businesses for QBI?

Reg. §1.199A-4(b)(1) sets five conditions, all of which must be met. First, the same person or group owns 50% or more of each business, directly or by attribution under §267(b) or §707(b). Second, that ownership exists for a majority of the taxable year, including the last day. Third, all items are reported on returns with the same taxable year, ignoring short years. Fourth, none of the businesses is a specified service trade or business. Fifth, the businesses satisfy at least two of three factors: they offer products or services that are the same or customarily offered together; they share facilities or significant centralized business elements; or they operate in coordination with or reliance on one another.

Can I aggregate an SSTB with a non-SSTB business?

No. If any business in the proposed group is a specified service trade or business — health, law, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage services, or a business whose principal asset is the reputation or skill of its owners — the aggregation fails entirely. This is a hard bar, not a proportional reduction, and it's the reason many freelancers who would benefit most cannot use the election. The SSTB test is applied business by business, so splitting genuinely separate activities into separate trades or businesses can matter.

Is QBI aggregation reversible?

Not at will. Under Reg. §1.199A-4(c)(1), once you aggregate, you must consistently report the aggregated group in all subsequent taxable years. You may add a newly created or newly acquired business to an existing aggregation if it meets the requirements. You may only stop aggregating if the group no longer satisfies the rules — for example, ownership falls below 50% or one business becomes an SSTB — and you must then report the change. Treat the first year's election as a multi-year commitment rather than an annual optimisation.

Does aggregation help me combine a profitable business with a loss business?

No — and this is the most common misunderstanding. QBI losses from one business offset QBI income from another at the combined-QBI step whether or not you aggregate, because Section 199A nets qualified business income across all your businesses by default. Aggregation changes only where the W-2 wage and qualified property cap is applied — to the group as a whole instead of business by business. If netting is what you're after, you already have it. If your problem is a profitable business with no payroll being capped to zero, aggregation is the fix.

Authoritative References

• Treasury Reg. §1.199A-4 — Aggregation
• IRS — Qualified Business Income Deduction
• IRS — About Form 8995-A, Qualified Business Income Deduction (Complex Computation)
• IRS — Instructions for Form 8995-A
• IRS — Facts About the Qualified Business Income Deduction
• IRS — Publication 535 successor guidance, Business Expenses

The Election Runs on Numbers You Have to Be Able to Produce

Aggregation is decided by four figures per business — QBI, W-2 wages, UBIA, and a defensible story about how the businesses relate. The first three come straight off books that have to be separate enough to compute them individually and clean enough to combine. Freelancers who run two businesses out of one bank account cannot produce either version, and the election evaporates for want of arithmetic.

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This article is educational and not tax advice. Section 199A thresholds are inflation-adjusted annually, and aggregation is a fact-specific election with multi-year consequences. Confirm current-year figures at irs.gov and consult a qualified tax professional before electing.