Rental income from a jointly owned property is split according to each owner’s legal ownership percentage on the deed. If two people hold title as tenants in common in a 60/40 ratio, one reports 60% of the rent and deducts 60% of the expenses, and the other reports 40% of each. That same ratio applies to depreciation and, eventually, to gain or loss on sale. It applies regardless of who collects the checks or writes them.
The Deed Sets the Split
Before you divide a dollar, look at how title is held. The form of ownership dictates the default split of everything financial about the property.
Tenancy in Common
Tenancy in common allows unequal shares. One co-owner might hold 70% and another 30%, and those percentages drive the income and expense split on every return. It’s the most flexible structure for investment property because the ratio can mirror what each person actually put in. A tenant in common’s share passes through their estate at death rather than automatically to the other owners.
Joint Tenancy
Joint tenancy requires equal ownership across all co-owners. Two joint tenants each own 50%; three each own a third. The “four unities” of time, title, interest, and possession must all be present, and the unity of interest means each owner’s share is identical.1Legal Information Institute. Joint Tenancy Income and expenses split equally. On death, a joint tenant’s share passes automatically to the surviving owners.
Tenancy by the Entirety
Tenancy by the entirety is available only to married couples in certain states. It functions like joint tenancy with added creditor protection: a judgment against only one spouse generally cannot reach the property. The income split is 50/50, and if the couple files jointly the split is academic because both halves land on the same return.
What the Ratio Applies To
Once the deed fixes the ratio, that single number governs every line item on the property. You apply it to gross income, to operating expenses, and to depreciation alike.
Gross Income
Every dollar the property produces is divided by ownership percentage. That covers base rent, late fees, application fees, pet deposits kept for damage, and forfeited security deposits. It doesn’t matter which owner deposits the checks. A property that grosses $30,000 under a 60/40 tenancy in common produces $18,000 of reportable income for the majority owner and $12,000 for the minority owner.
Operating Expenses
Deductible expenses follow the ownership ratio too, even when one owner writes all the checks. If the 40% owner pays the full $8,000 insurance bill personally, they still deduct only $3,200. The other $4,800 they laid out is a loan or contribution between the co-owners, not a deduction. The rule applies to mortgage interest, property taxes, repairs, management fees, and every other ordinary expense of the rental.
Depreciation
Residential rental property is depreciated over 27.5 years under the Modified Accelerated Cost Recovery System.2Office of the Law Revision Counsel. 26 U.S. Code 168 – Accelerated Cost Recovery System Each owner claims their percentage of the annual amount. If a property has a depreciable basis of $275,000, annual depreciation is $10,000, and a 60/40 split produces $6,000 and $4,000 respectively. Each owner’s basis then drops by the depreciation they individually claimed, which will matter when the property is sold.
Reporting Your Share on Schedule E
Most co-owned rentals are reported on IRS Schedule E, filed with each owner’s Form 1040.3Internal Revenue Service. Topic No. 414, Rental Income and Expenses Each owner completes their own Schedule E showing only their share of income and expenses.4Internal Revenue Service. Instructions for Schedule E (Form 1040) You don’t report the full property numbers and then back out the other owner’s portion. You start with your share.
Co-owners who simply collect rent and handle normal maintenance don’t need an Employer Identification Number for the property. Each owner uses their Social Security number on their Schedule E. An EIN comes into play only if the arrangement rises to a partnership.
When Co-Ownership Becomes a Partnership
The IRS treats mere co-ownership of a rental as separate ownership, not a partnership. But if the co-owners provide services to tenants beyond what a normal landlord provides, the arrangement crosses into partnership territory.5Internal Revenue Service. Understanding Your EIN Daily maid service, meals for tenants, and organized recreation are the kinds of services that trigger this. Routine repairs and occasional maintenance do not.
Once the arrangement is a partnership, the co-owners file Form 1065.6Internal Revenue Service. U.S. Return of Partnership Income (Form 1065) The partnership itself owes no income tax; it calculates total income and expenses and issues a Schedule K-1 to each owner, who then reports the K-1 amounts on their personal return. This route adds paperwork and cost, but it opens the door to special allocations that don’t match ownership percentages.
Passive Loss Limits on the Loss You Report
Rental income is passive, which means rental losses generally cannot offset wages, business profits, or other nonpassive income. New landlords are often surprised by this in years when depreciation and expenses produce a paper loss.
There is a meaningful exception. If you actively participate in managing the rental, you can deduct up to $25,000 in rental losses against nonpassive income each year.7Office of the Law Revision Counsel. 26 U.S. Code 469 – Passive Activity Losses and Credits Limited Active participation is a lower bar than material participation: approving tenants, setting rent, and authorizing repairs count.8Internal Revenue Service. Instructions for Form 8582 – Passive Activity Loss Limitations You need at least a 10% ownership interest by value to qualify.
The $25,000 allowance phases out as modified adjusted gross income rises above $100,000, losing 50 cents for every dollar over that threshold, and disappears completely at $150,000.8Internal Revenue Service. Instructions for Form 8582 – Passive Activity Loss Limitations Married couples filing separately who lived together at any point during the year cannot use it at all. Disallowed losses carry forward, and you can deduct them in full when you dispose of your entire interest in the property.
Each co-owner runs these rules independently on their own Form 8582.9Internal Revenue Service. About Form 8582 – Passive Activity Loss Limitations Your co-owner’s AGI does not affect your allowance, and their other passive activities do not pool with yours.
Married Couples
Spouses who own a rental together and file jointly take the simplest route: all income and expenses go on a single Schedule E attached to the joint 1040. The ownership split between the two spouses doesn’t affect anything because both shares are on the same return.
If spouses file separately, each reports their share on their own Schedule E under the same rules as any other co-owners.
The Qualified Joint Venture Election
Married couples who jointly own and operate a rental can elect qualified joint venture treatment instead of filing as a partnership. The election is available in all states, provided the spouses are the only owners, both materially participate, and the property is not held through an LLC or other state-law entity.10Internal Revenue Service. Election for Married Couples Unincorporated Businesses Each spouse then reports their share as a separate property listing on Schedule E, and no Form 1065 is required.4Internal Revenue Service. Instructions for Schedule E (Form 1040)
One nuance: the IRS notes that rental real estate income is generally passive even when the material participation test is met, so the election does not change the passive character of the income.10Internal Revenue Service. Election for Married Couples Unincorporated Businesses The passive loss limits still apply.
Splitting Differently Than the Deed
Co-owners often want an income split that doesn’t match the deed. One partner handles all the work; one put in cash while the other put in expertise. The IRS will respect a non-proportional split only inside a formal partnership that satisfies the substantial economic effect rules of IRC §704.11Office of the Law Revision Counsel. 26 U.S. Code 704 – Partners Distributive Share
In practice, the partnership agreement has to genuinely change each partner’s economic position. If the 40% owner is to receive 60% of the income, that partner’s capital account must reflect the shift, and the allocation must have real consequences beyond lowering someone’s tax bill. Allocations built purely for tax savings get reclassified according to each partner’s actual economic interest.
Without a partnership, co-owners reporting on Schedule E must follow the deed. Schedule E offers no mechanism to allocate income away from the ownership percentage, and doing so anyway is a straightforward audit flag.
Penalties for Getting It Wrong
Misallocating rental income isn’t a gray area the IRS tends to overlook. If one owner claims more than their share of expenses, or understates their share of income, and it produces an underpayment, the IRS can impose an accuracy-related penalty of 20% on the underpayment.12Office of the Law Revision Counsel. 26 U.S. Code 6662 – Imposition of Accuracy-Related Penalty The penalty covers negligence, which includes failing to keep adequate records or failing to make a reasonable effort to report correctly.
The penalty doesn’t apply if you acted with reasonable cause and in good faith. Keep a written ownership agreement, keep records of who actually paid what, and reconcile payments between co-owners once a year. The most common mistake is one co-owner deducting the full amount of a bill they paid instead of just their ownership share. Catch that, and you’ve caught the error that trips up most people preparing their own returns.