NIIT Real Estate Professional Exception 2027 Calculator
Estimate the 3.8% Net Investment Income Tax savings if your rental activity qualifies under the Real Estate Professional exception.
What Is the Real Estate Professional Exception?
Under IRC §469(c)(7), if you qualify as a Real Estate Professional (REP), your rental real estate activities are treated as NON-passive — exempting them from both the passive activity loss rules AND the 3.8% Net Investment Income Tax (NIIT). For 2027, NIIT still applies to MAGI over $200K single / $250K MFJ. Source: IRC §469(c)(7), §1411. Last updated: May 2026.
The Two-Part REP Test
You must meet BOTH: (1) More than 750 hours/year in real property trades or businesses you materially participate in, AND (2) More than 50% of ALL your personal services for the year in real property trades. The 50% test makes it nearly impossible for full-time W-2 employees with side rentals to qualify.
Material Participation Still Required
Even with REP status, you must materially participate in each rental activity (or properly group/aggregate them via the §469(c)(7)(A) election). The 7 material participation tests include 500+ hours, substantially all participation, or 100+ hours and more than anyone else. Document hours contemporaneously.
Why REP Beats NIIT
A real estate investor with $75K rental income and high MAGI pays $2,850/year in NIIT without REP status. Over 10 years that's $28,500 of pure tax savings if they can substantiate REP. Plus REP unlocks unlimited passive loss deductions — often worth $20-50K/year more in early years from depreciation.
Frequently Asked Questions
What are the two REP tests for 2027?
You must (1) spend more than 750 hours/year in real property trades or businesses where you materially participate, AND (2) spend more than 50% of ALL your personal services for the year in real property trades. Both tests must be met \u2014 not one or the other.
Does REP status exempt me from the 3.8% NIIT?
Yes. If you qualify as a Real Estate Professional AND materially participate in your rentals, the income is NON-passive and excluded from net investment income for NIIT purposes. This saves 3.8% of all qualifying rental income for MAGI above the $200K/$250K threshold.
Can a W-2 employee qualify as a Real Estate Professional?
Almost never. If you work a full-time W-2 job (2,000+ hours/year), you'd need to spend MORE than 2,000 hours in real property trades to satisfy the 50% test. Realistically, only full-time real estate investors, agents, brokers, and contractors qualify.
Can my spouse qualify if I cannot?
Yes. On a joint return, EITHER spouse can be the Real Estate Professional. The tests are applied per individual \u2014 but if one spouse qualifies, the rentals on the joint return get REP treatment. Many couples have one spouse run the real estate business specifically to claim REP.
What documentation do I need?
Contemporaneous time logs (date, hours, activity description) for EVERY hour claimed in real property trades. Most IRS REP audits fail because taxpayers reconstruct hours after the fact. Use a dedicated app or spreadsheet updated weekly. Without solid logs, IRS routinely disallows REP.
Does REP affect Section 199A QBI?
Independent test \u2014 REP under \u00a7469 doesn't automatically make rental income QBI under \u00a7199A. You still need the \u00a7199A safe harbor (250+ hours) or trade-or-business status. But many real estate pros qualify for both, getting NIIT exemption AND 20% QBI deduction.