Multifamily Real Estate Market: Key Insights for Investors

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The levers that move a multifamily return are unglamorous and mostly accounting. Here are the ones worth knowing before the next acquisition or refinance.

Basis, NOI and the K-1

Tax Basis, and When It Has to Be Decided

How ownership is structured decides three separate numbers: how much depreciation you can claim, what a refinance does to your position, and what an exit costs you. All three are set at the transaction, and none of them can be adjusted afterwards.

Key: Basis step-ups in partnerships and ownership structures are where the savings sit, and they need planning before the transaction rather than after it.

Cost segregation is the other half. Residential rental property depreciates over 27.5 years under IRC §168(c); a cost segregation study uses an engineering analysis to reclassify components (fixtures, flooring, landscaping, electrical) onto much shorter lives, which front-loads the deductions and improves cash flow in the early years.

It is not free. A study generally pays for itself on properties above roughly $500,000 in basis, and the benefit is largest for investors with passive income to offset. Model it before you buy or refinance rather than discovering afterwards that the fee outran the saving. Our tax strategies for real estate investors cover how that modeling works.

What NOI Leaves Out

Net Operating Income (NOI) is a critical metric, but focusing on it exclusively can create a false sense of profitability. NOI does not account for:

• Capital expenditure: roofs, HVAC, parking, the things that arrive rarely and cost a lot when they do
• Debt service, both principal and interest
• Income taxes
• Depreciation, and the recapture waiting at the other end

Note what is inside NOI: property taxes, insurance, management fees, routine maintenance and utilities are all operating expenses and are already deducted. Day-to-day maintenance sits inside NOI; debt service sits outside it, and that is the line people misread.

A property showing strong NOI might still be underperforming when considering long-term financial forecasting. A model that carries capital expenditure and tax alongside NOI gives a number you can act on; our forecasting work is where that gets built.

IRS Scrutiny on 1065 & 1120-S Filings: What It Means for You

Real estate partnerships (1065) and S-corporations (1120-S) pass income, losses and depreciation to their owners on Schedule K-1, so a mistake on the entity return lands on every owner's return. Getting the K-1 right means:

• Basis schedules that are tracked and reconcilable, partner by partner
• At-risk and passive-activity limits applied correctly
• Reasonable compensation, where an S-corporation is involved

Failing to adhere to IRS standards can lead to costly audits and penalties. Keeping basis schedules current and filings clean through the year is ordinary bookkeeping work rather than a year-end exercise. See how outsourced bookkeeping handles a real estate portfolio.

Three Strategies Worth the Work

Revisit the Depreciation Schedule

A cost segregation study is a snapshot of the building as it stood on the day it was done. A refinance or a major improvement changes what is on the depreciation schedule, and the schedule only reflects it if someone updates it.

Private Equity’s Influence on Multifamily Valuations

Institutional buyers underwrite the same building differently, and the gap is mostly in what they will pay for today. They price renewal rates and turnover cost rather than headline occupancy, they underwrite the capital plan as a cost rather than as an upside case, and they carry a cost of capital an individual owner usually does not. That is why an institutional bid can clear a local one on the same rent roll, and why matching it on price alone is rarely the right response.

The 1099-K Threshold, After Three Changes

For small multifamily operators, especially those with short-term rentals, payment platforms such as Airbnb and Vrbo report gross receipts to the IRS on Form 1099-K. The threshold moved twice and then moved back: the One Big Beautiful Bill Act repealed the $600 rule outright, and the IRS now requires a 1099-K only where payments for goods and services exceed $20,000 across more than 200 transactions. Below that you may still receive one, because some platforms issue voluntarily and several states set lower thresholds of their own. Either way the form reports gross, before platform fees, so your books have to reconcile to it.

Tip: Owners must systematically track income and expenses to ensure compliance and minimize tax liabilities. Our multifamily practice covers how that is tracked.

The Future of Multifamily Finance

Work out what your properties actually return after debt service and capital expenditure, not what the NOI line says. If the two numbers differ sharply, the difference is your financing and your deferred maintenance, and both are manageable once they are visible.

NOI and the return you keep part ways once debt service and capital expenditure come out. We keep the property books, prepare the 1065 and K-1s, and model the after-debt return from your rent roll. Book a call with the loan terms and two years of operating statements for the building you are looking at.