Multi-LLC tax estimator

Add up net profit from every LLC and estimate your combined self-employment and federal income tax for 2026 — including the detail single-business calculators miss: the Social Security wage base is shared across all your entities, not applied to each. Runs entirely in your browser.

Your entities

Filing status

Net profit per LLC (after expenses)

Optional — the rest of the picture

W-2 wages (Social Security already withheld)

Other taxable income (spouse, interest…)

Include simplified 20% QBI deduction

Estimated total federal tax · 2026

Combined net profit

Self-employment taxshared $184,500 SS base

— Social Security (12.4%)

— Medicare (2.9% + any 0.9%)

Federal income tax

— QBI deduction applied

— Taxable income (after deductions)

Estimate only Federal only, tax year 2026 (IRS Rev. Proc. 2025-32), Single or Married-filing-jointly, standard deduction, and a simplified 20% QBI deduction that phases out for many businesses above about $201,775 (single) / $403,500 (joint). It excludes state tax, credits, and many situational rules — so it is a planning estimate, not tax advice. Everything runs in your browser; nothing is stored or sent. Talk to a tax professional before filing or making decisions.

Stop reconstructing this every quarter

This estimate is only as good as knowing each entity's real net profit. Crestfolio tracks every LLC, rental, and business as its own module — so your numbers are always current and tax time is a handoff, not a scramble.

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