When two or more people own a rental property together, the general rule for how to split rental income for tax purposes is simple: each owner reports the share that matches their legal ownership on the deed. A 60/40 tenancy in common produces a 60/40 split of gross rents. A 50/50 joint tenancy produces a 50/50 split. If you want an allocation that doesn’t track ownership percentages, you need a partnership or multi-member LLC with a written agreement that meets the IRS rules for special allocations. Informal side deals between co-owners don’t work, and getting the allocation wrong can bring a 20% accuracy penalty on top of the tax you owe.
The Deed Sets the Default Split
The document recorded with the county controls. You and your co-owner can’t agree between yourselves to shift more income onto whoever is in a lower bracket, because the IRS treats attempts to move income away from the legal owner as either a gift or a loan under the assignment of income doctrine. Before you decide anything else about reporting, look at how title is held.
Tenancy in Common
Tenancy in common allows unequal shares, which is why most unrelated co-investors use it. Each tenant in common is entitled to a proportionate share of the rents based on their ownership interest, so a 70/30 deed produces a 70/30 income split.1Internal Revenue Service. Revenue Procedure 2002-22 – Conditions Under Which the Internal Revenue Service Will Consider a Ruling That an Undivided Fractional Interest in Rental Real Property Is Not an Interest in a Business Entity Reporting anything other than that percentage without a formal entity invites scrutiny.
Joint Tenancy and Tenancy by the Entirety
Both of these presume equal ownership. In a joint tenancy, each tenant holds an equal interest regardless of how much each person contributed to the purchase price.2The Balance. Tenants by the Entirety vs. Joint Tenants With Rights of Survivorship Tenancy by the entirety is limited to married couples and works the same way. If you hold title either of these ways, the split is 50/50, period, even if one owner put up the full down payment.
Married Couples
Married co-owners have an extra layer to check. Nine states plus Puerto Rico follow community property rules: Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin. Income from property acquired during the marriage in those states is presumed community property, which means a 50/50 tax split regardless of whose name is on the deed.3Internal Revenue Service. IRM 25.18.2 – Income Reporting Considerations of Community Property In other states, the split follows the deed.
Spouses who both actively manage the property can elect qualified joint venture treatment. The election lets each spouse report a share of income and expenses as separate properties on Schedule E, without filing a partnership return.4Internal Revenue Service. Election for Married Couples Unincorporated Businesses Each spouse divides all items of income, deduction, and loss based on their respective interest in the venture and reports them on the same Schedule E as separate property entries.5Internal Revenue Service. 2024 Instructions for Schedule E Supplemental Income and Loss
Expenses and Deductions Follow Who Actually Pays
Income tracks the deed, but expense deductions track the checkbook. A co-owner can only deduct expenses they personally paid. On a cash basis, you count income when you receive it and deduct expenses when you pay them.6Internal Revenue Service. Topic no. 414, Rental income and expenses
Most co-owners split operating costs in the same ratio as their income share, which keeps the return clean. If the property is owned 60/40, each owner pays and deducts their share of insurance, property management, and routine maintenance in that ratio. When one owner covers the full amount of an expense, that person claims the entire deduction, provided the payment isn’t structured as a capital contribution or a loan to the other owner. Keep the receipts and bank records. If the IRS questions an allocation that doesn’t match the deed, you’ll need proof of who paid.
Depreciation
Depreciation is the largest non-cash deduction on a rental. The depreciable basis is the cost of the building, excluding land, divided among owners according to their ownership percentages. Each owner calculates depreciation on their own share of the basis and reports it on Schedule E, using Form 4562 in the year the property is placed in service.6Internal Revenue Service. Topic no. 414, Rental income and expenses This allocation is fixed by the deed percentages and can’t be shifted without a formal entity.
Capital Improvements Versus Repairs
The distinction matters more than most co-owners realize. An ordinary repair, like fixing a leaky faucet, is deductible in the year you pay for it. A capital improvement, like a new roof or HVAC system, must be capitalized and depreciated over time.7Internal Revenue Service. Tangible Property Final Regulations When one co-owner pays the full cost of a capital improvement, that owner adds the entire amount to their own depreciable basis. If both split the cost, each adds their share to their own basis. Misclassifying a capital improvement as a repair is one of the most common audit triggers on rental returns, and co-owners need to agree on the classification so their returns line up.
The Passive Loss Rule That Traps Small Co-Owners
Rental real estate is a passive activity by default. That means a net loss from your rental share can only offset other passive income, not your wages or portfolio earnings. With no other passive income, the loss is suspended and carried forward.
There’s a carve-out. If you actively participate in managing the rental, you can deduct up to $25,000 in rental losses against ordinary income each year.8Office of the Law Revision Counsel. 26 USC 469 – Passive Activity Losses and Credits Limited Active participation is a lower bar than material participation: approving tenants, setting rental terms, and authorizing repairs all count.9Internal Revenue Service. Publication 925 – Passive Activity and At-Risk Rules
The $25,000 allowance phases out as modified adjusted gross income rises above $100,000 and disappears at $150,000. For married filing separately taxpayers who lived apart the entire year, the allowance drops to $12,500 with a phase-out starting at $50,000. If you’re married filing separately and lived with your spouse at any point during the year, you get no allowance at all.8Office of the Law Revision Counsel. 26 USC 469 – Passive Activity Losses and Credits Limited
One point catches co-owners off guard: you must own at least 10% of the property by value to qualify as an active participant, and limited partners in a formal partnership generally cannot claim active participation status at all.9Internal Revenue Service. Publication 925 – Passive Activity and At-Risk Rules When you take a small piece of a syndicated deal, the passive loss rules can lock up your losses for years.
When You Need an LLC or Partnership to Split Differently
If you want a split that doesn’t match the deed, simple co-ownership won’t get you there. A multi-member LLC taxed as a partnership is the usual vehicle. Partnership taxation opens the door to special allocations, meaning income, losses, deductions, and credits can be divided in proportions that differ from capital contributions. One member might receive a larger share of depreciation deductions while another takes a larger share of cash flow. The specific allocation has to be spelled out in a written operating agreement.
The Substantial Economic Effect Test
You can’t allocate however you want. Under Section 704(b), a special allocation must have substantial economic effect to be respected for tax purposes.10Office of the Law Revision Counsel. 26 U.S. Code 704 – Partners Distributive Share The person allocated a tax benefit must actually bear the corresponding economic consequences. The Treasury Regulations require the operating agreement to maintain capital accounts under specific tax accounting rules, distribute liquidating proceeds by positive capital account balances rather than by ownership percentage, and obligate any partner with a negative capital account at liquidation to restore that deficit.11eCFR. 26 CFR 1.704-1 – Partners Distributive Share
Fail any of those requirements and the IRS can throw out the special allocation and reallocate income and losses based on each partner’s actual economic interest, which usually collapses to a proportional split based on capital contributions. The “substantial” piece of the test also blocks allocations that are purely temporary or self-canceling, such as loading all depreciation onto one partner while guaranteeing the other an equivalent future gain. Draft the operating agreement with a tax attorney or CPA; a template won’t survive audit.
S Corporations Are the Wrong Choice for Flexible Splits
An S corporation offers almost no allocation flexibility. All items of income and loss must be allocated on a per-share, per-day basis among shareholders, with no special allocations available.12eCFR. 26 CFR 1.1377-1 – Pro Rata Share Own 30% of the stock and you report 30% of everything.
Where Each Owner Reports the Split
Simple Co-Ownership
Tenants in common, joint tenants, and tenants by the entirety each report their allocated share of rental income and expenses on Schedule E (Supplemental Income and Loss), attached to their personal Form 1040.13Internal Revenue Service. Instructions for Schedule E Form 1040 Supplemental Income and Loss There’s no entity return. Each person’s Schedule E shows only their percentage of gross rents and their portion of the deductions.
Partnerships and Multi-Member LLCs
A multi-member LLC or partnership must file Form 1065. The entity itself doesn’t pay income tax; it passes income and losses through to the partners.14Internal Revenue Service. About Form 1065 Each partner receives a Schedule K-1 showing their specific share of income, deductions, and credits as determined by the operating agreement, and uses that K-1 to complete the relevant lines of their 1040.
Form 1065 is due March 15 for calendar-year partnerships, two months earlier than individual returns. Missing that deadline triggers a per-partner, per-month penalty for up to 12 months.15Office of the Law Revision Counsel. 26 USC 6698 – Failure to File Partnership Return For a two-partner LLC three months late, the bill runs past $1,500. File an extension if you need more time.
Taxes That Ride on Top of the Split
Rental income is generally excluded from self-employment tax, so the 15.3% SE tax doesn’t apply to most co-owners. The exception is a real estate dealer who receives rent as part of that business.16Office of the Law Revision Counsel. 26 U.S. Code 1402 – Definitions
Higher-income co-owners pay an additional 3.8% net investment income tax on their rental income. Rental and royalty income is included in net investment income, and the tax applies to the lesser of net investment income or the amount by which modified adjusted gross income exceeds $250,000 for joint filers, $200,000 for single or head of household, or $125,000 for married filing separately.17Internal Revenue Service. Net Investment Income Tax18Office of the Law Revision Counsel. 26 USC 1411 – Imposition of Tax Two co-owners with identical shares of the same rental can end up paying very different effective rates because one crosses the NIIT threshold and the other doesn’t.
What Happens If You Allocate the Wrong Way
The cost of getting the split wrong isn’t just paying back the correct tax. If the IRS finds the understatement came from negligence or disregard of the rules, you owe a 20% accuracy-related penalty on the underpayment. The same 20% applies to a “substantial understatement,” triggered when the understated tax exceeds the greater of 10% of the correct tax or $5,000.19Internal Revenue Service. Accuracy-related penalty
Fraud is worse. If any portion of an underpayment is attributable to fraud, the penalty is 75% of the fraudulent portion, and once fraud is established on any part of the underpayment, the entire underpayment is presumed fraudulent unless you prove otherwise by a preponderance of the evidence.20Office of the Law Revision Counsel. 26 U.S. Code 6663 – Imposition of Fraud Penalty Shifting rental income to a lower-earning co-owner through an informal agreement that doesn’t match the deed is exactly the arrangement that draws that kind of scrutiny. Keep the allocation consistent with your legal ownership, or form a proper entity with an operating agreement that survives the substantial economic effect test.