The Short Answer

1. Cash flow and taxable rental income are different numbers

Start with the money moving through the property.

Rent comes in. Mortgage payments, property tax, insurance, repairs, and other costs go out.

But the tax return does not simply deduct every dollar that left the bank account.

A mortgage payment is a good example. The interest portion may generally be deductible as a rental expense, but the principal portion reduces the loan balance. Paying down principal uses cash, but it is not a current deduction.

Depreciation works in the opposite direction. The owner may receive a tax deduction for the building even though no separate “depreciation payment” left the bank account that year. Residential rental buildings are generally depreciated under MACRS, and land itself is not depreciable. See IRS Publication 527 for the federal rental-property and depreciation rules.

That can create a result like this:

• Rent and other rental income produce positive cash flow.
• Mortgage principal reduces cash but does not reduce taxable rental income.
• Depreciation reduces taxable rental income but does not reduce current cash.

The result can be positive cash flow and a tax loss at the same time.

Neither number is wrong. They answer different questions.

2. A rental tax loss is generally a passive loss

For federal tax purposes, rental activities are generally treated as passive activities under IRC §469.

That rule applies even when the owner is involved with the property. Managing the tenant, approving repairs, or making other decisions does not automatically make a normal long-term rental nonpassive.

This matters because passive losses generally offset passive income. They do not automatically offset wages, ordinary consulting income, or other nonpassive income.

For example, assume a rental produces a $15,000 tax loss.

If the owner also has $15,000 of passive income from another activity, the rental loss may generally be available to offset that passive income, subject to the other applicable loss limitations.

But if the owner has only W-2 wages and nonpassive business income, the same $15,000 rental loss may be limited.

The tax return can therefore show a real loss without producing a current deduction against the income the taxpayer expected to offset.

3. Active participation can allow up to $25,000 of rental losses

There is an important exception for rental real estate.

An individual who actively participates in rental real estate may be able to deduct up to $25,000 of rental real estate loss against nonpassive income. Active participation is a lower standard than material participation and can include meaningful management decisions such as approving tenants, deciding rental terms, or approving repair and capital expenditures. The taxpayer generally must also own at least a 10% interest in the activity. See the Form 8582 instructions.

But the $25,000 amount is not automatically available to every landlord.

For a single taxpayer or married couple filing jointly, the allowance begins to phase out when modified adjusted gross income exceeds $100,000. The allowance is reduced by 50 cents for each dollar of MAGI above $100,000.

Based on MAGI alone, the maximum special allowance is:

MAGI of $100,000 or less → up to $25,000 maximum special allowance

MAGI of $120,000 → up to $15,000 maximum special allowance

MAGI of $140,000 → up to $5,000 maximum special allowance

MAGI of $150,000 or more → generally no special allowance

Those amounts are ceilings, not guaranteed deductions. The deductible amount also cannot exceed the qualifying rental real estate loss otherwise available after the applicable loss limitations.

The passive-loss MAGI calculation has its own rules, so it should not automatically be assumed to equal the AGI shown elsewhere on the return. For married taxpayers filing separately who lived apart from their spouse for the entire year, the maximum special allowance is $12,500; the phaseout begins above $50,000 of MAGI and is generally complete at $75,000. A married taxpayer filing separately who lived with the spouse at any time during the year does not qualify for this special allowance. See the Form 8582 instructions for the computation. The statutory rules are in IRC §469(i).

This is why “I actively manage my rental” and “I can deduct the rental loss against my salary” are not the same statement.

4. What happens if the loss is not deductible now?

A passive loss that is disallowed under §469 generally does not disappear. It is carried forward and remains associated with the passive activity. IRC §469(b) provides the basic carryforward rule.

In a later year, the suspended loss may become usable when there is sufficient passive income or when another applicable exception allows the loss.

Suspended passive losses also generally become deductible when the taxpayer disposes of the taxpayer’s entire interest in the activity in a fully taxable transaction to an unrelated person, subject to the detailed disposition rules in IRC §469(g).

That makes suspended losses worth tracking carefully.

A loss that produces no current tax benefit may still matter later.

5. The passive-loss rules are not always the first limitation

Section 469 is important, but it is not the only rule that can limit a rental loss.

Depending on the facts and ownership structure, basis or at-risk rules may apply before the passive activity rules. IRS Publication 925 explains that the at-risk rules are applied before the passive activity limitations and discusses when Form 6198 may be required.

For a straightforward rental owned directly by an individual, this may not create a separate issue in every case.

But it is useful to remember that a Schedule E loss is the beginning of the loss-limitation analysis, not necessarily the end.

6. What if you used to live in the property?

A former personal residence that becomes a rental adds another important calculation: depreciation basis.

When property previously used personally is converted to rental use, the federal basis used for depreciation is generally the lower of the property’s adjusted basis on the conversion date or its fair market value on the conversion date. Land is excluded from depreciable basis, and a residential rental building is generally depreciated over 27.5 years under the federal General Depreciation System. See IRS Publication 527.

That rule can materially affect the depreciation deduction and therefore the taxable rental result.

It is also why records from before the property became a rental still matter.

For a deeper discussion of the conversion itself, see Converting Your Home to a Rental: What Changes for Tax?.

7. What about real estate professionals?

Federal law has another important exception.

If a taxpayer qualifies as a real estate professional under IRC §469(c)(7), rental real estate is no longer automatically passive for federal purposes. The taxpayer must still satisfy the applicable material-participation requirements for the rental activity.

The real estate professional rules are separate from the much easier active-participation standard used for the $25,000 special allowance.

Actively participating in one rental property does not by itself make someone a real estate professional.

8. Federal and California treatment are not completely the same

California generally applies passive activity loss limitations similar to the federal rules and uses Form FTB 3801 to determine the allowable California passive loss. California also recognizes the special allowance for qualifying rental real estate losses.

For married or registered domestic partner taxpayers filing separately, FTB 3801 likewise uses reduced thresholds when the spouses or partners lived apart all year and provides no special allowance if they lived together at any time during the year.

But there is an important difference.

California does not conform to the federal real estate professional rule in IRC §469(c)(7). For California purposes, rental activities remain passive even when a taxpayer’s rental real estate may be treated as nonpassive federally under the real estate professional rules. The FTB 3801 instructions state this nonconformity directly.

Federal and California passive-loss carryovers can therefore become different.

Differences in California depreciation or other state adjustments can also cause the California rental income or loss to differ from the federal amount.

For a California landlord, it is worth tracking both amounts rather than assuming the federal suspended loss is automatically the California suspended loss.

9. Common Mistakes

“The rental has a tax loss, so I must have lost cash.”

Not necessarily. Depreciation can reduce taxable income without a matching current-year cash payment, while mortgage principal can reduce cash without creating a current deduction. See IRS Publication 527.

“I manage the property myself, so the loss is nonpassive.”

Usually not. A normal rental activity is generally passive even if the owner is involved in managing it. Federal real estate professional treatment is a separate exception with separate requirements. See IRC §469.

“Every landlord gets the $25,000 deduction.”

No. The special allowance requires active participation and is subject to the MAGI phaseout and other requirements. See Form 8582 instructions.

“If the loss is suspended, I lost the deduction forever.”

Generally no. A disallowed passive loss is normally carried forward until it can be used under the passive activity rules. See IRC §469(b).

“If I sell the property, every suspended loss is automatically released.”

Not always. The general disposition rule requires a disposition of the taxpayer’s entire interest in the activity in a fully taxable transaction, and special rules apply to related-party transfers and certain other transactions. See IRC §469(g).

The Key Distinction

A rental property has more than one financial result.

Cash flow tells you what happened to cash.

Taxable rental income or loss tells you what the tax rules recognize after deductible expenses and depreciation.

The deductible loss this year depends on additional rules, including the passive activity limitations.

A tax loss can reduce the after-tax cost of holding a rental. A suspended tax loss may provide value later.

Neither one, by itself, tells you whether the property is a good investment.

That decision still depends on rent, expenses, debt paydown, future capital needs, property value, selling costs, taxes, risk, and what else the owner could do with the capital.

Reference

Passive Activity Loss Rules

Internal Revenue Code §469 — Passive Activity Losses and Credits Limited

Primary federal authority for passive rental treatment, carryforwards, the special rental real estate allowance, the real estate professional exception, and dispositions of passive activities.

https://www.govinfo.gov/link/uscode/26/469

IRS — Instructions for Form 8582, Passive Activity Loss Limitations

Explains rental passive-loss reporting, active participation, the special rental real estate allowance, suspended losses, and Form 8582 mechanics.

https://www.irs.gov/instructions/i8582

IRS Publication 925 — Passive Activity and At-Risk Rules

Explains passive activities, participation standards, loss carryovers, disposition rules, and coordination with the at-risk rules.

https://www.irs.gov/publications/p925

Rental Income and Depreciation

IRS Publication 527 — Residential Rental Property

Covers rental income, deductible expenses, depreciation, conversion of a former home to rental use, and rental-loss limitations.

https://www.irs.gov/publications/p527

California

California FTB — 2025 Instructions for Form FTB 3801, Passive Activity Loss Limitations

Explains California passive-loss reporting, the special rental real estate allowance, and California’s nonconformity with the federal real estate professional rule.

https://www.ftb.ca.gov/forms/2025/2025-3801-instructions.html

California FTB — Rental Income

Provides California guidance on reporting rental income and rental expenses.

https://www.ftb.ca.gov/file/personal/income-types/rental.html

See This Rule in the Story

Another Year

In Episode 24, Evan and Daisy have owned their former Anaheim home as a rental for almost a year when their tenant asks about renewing the lease.

Looking at the property again forces them to separate three questions: how much cash the property produces, what the tax return may show after depreciation, and whether any rental tax loss would actually reduce their other income.

The tax rules help explain the numbers. They do not answer the question Daisy ultimately asks: if they did not already own the house, would they choose to buy it as a rental today?

Another Year

Related Tax Guide

Converting Your Home to a Rental: What Changes for Tax?

A former home does not simply become a rental on the tax return. The conversion date affects depreciation, basis, expenses, and future tax consequences.

Converting Your Home to a Rental: What Changes for Tax?