Apartment Syndication Taxes: Every K-1 and Tax Guide in One Place

On this page

1. Start here
2. Reading your K-1
3. Depreciation and losses
4. Distributions and income
5. State taxes
6. The sale and exit
7. Retirement accounts
8. For sponsors
9. How DoorRaise fits in
10. FAQ

An apartment syndication is usually taxed as a partnership, so each investor receives a K-1 and reports their share of income, losses and depreciation, whether or not cash was distributed. This page links every DoorRaise guide on syndication taxes, for investors first and sponsors last. Tax rules change; each guide states the date it is as of, and your own tax adviser decides how they apply to you.

Start here

• Apartment Syndication Taxes for Beginners: K-1s, Depreciation and Passive Losses: How apartment syndication taxes work for new investors: the Schedule K-1, depreciation, basis, passive loss limits and sale, with an example.
• Tax Forms a Syndication Investor Receives and Files Each Year: Which tax forms come from an apartment syndication: the Schedule K-1, state K-1s, and the forms you may file, such as 8582, 6198, Schedule E and 4797.
• What Is a K-1 for Real Estate Syndication Investors?: A K-1 reports your share of a syndication's income, loss and distributions. See the boxes, a basis example, why K-1s run late and the loss limits.
• Why Your Syndication K-1 Is Late and What to Do About It: A late syndication K-1 is common. See why it happens, the March 15 and extension dates, what to do with your own return, and when a delay is a red flag.

Reading your K-1

• What Is the Capital Account on My K-1?: What the capital account in Item L of your K-1 shows, why it uses the tax basis method, why it differs from your cash and what a negative balance means.
• K-1 Box 2 Rental Real Estate Income (Loss) in a Syndication: What Box 2 on a syndication K-1 means, why it can be a loss when you received cash, how it differs from distributions in Box 19, and where it goes on your return.
• K-1 Box 10 Section 1231 Gain in the Year a Syndication Sells: What Section 1231 gain in Box 10 of your syndication K-1 is, how it is taxed as long-term gain, the five-year lookback, recapture pieces and where it is reported.
• K-1 Box 19 Distributions: What a Syndication Investor Should Know: Box 19 on Schedule K-1 (Form 1065) reports cash and property distributions. See what the codes mean, how basis changes and when a distribution is taxed.
• Schedule K-3 for Real Estate Partnerships: Do You Need One?: What Schedule K-3 reports, the IRS domestic filing exception and its four criteria, why most U.S. apartment syndications qualify, and what to do.
• You Received an Amended K-1 After Filing Your Taxes: What a Syndication Investor Does: What to do when a syndication sends a corrected or amended Schedule K-1 after you filed: compare the numbers, decide if your return changes, and file Form 1040-X.
• Outside Basis vs. Capital Account: What Syndication Investors Should Track: Your tax basis in a syndication and the K-1 capital account are different numbers. How outside basis is built, why it matters and how to track it.

Depreciation and losses

• Cost Segregation for Apartment Syndications: How It Works in 2026: How cost segregation works for an apartment syndication in 2026: what qualifies, bonus depreciation, passive loss limits and recapture, with math.
• Is 100% Bonus Depreciation Back for Apartment Syndications?: Public Law 119-21 made 100% bonus depreciation permanent for property acquired after January 19, 2025. How it reaches you in an apartment deal.
• Passive Loss Carryover From a Syndication: How It Works: How suspended passive losses from a syndication K-1 carry forward with no time limit, what they offset, how a sale frees them, and Form 8582 basics.
• At-Risk Rules for Limited Partners in Real Estate Deals: How IRC 465 at-risk rules apply to syndication limited partners, why qualified nonrecourse financing counts, the order of loss limits and Form 6198.
• Can Real Estate Professional Status Let You Use Syndication Losses Against W-2 Income?: How real estate professional status under IRC 469(c)(7) works, why limited partners rarely meet material participation, and the grouping election.
• Land vs. Building Allocation: How to Split an Apartment Purchase Price for Depreciation: Land is not depreciable, so the share of an apartment purchase price you assign to land changes every year's depreciation. How to allocate it and what the IRS accepts.

Distributions and income

• Are Syndication Distributions Taxable? Return of Capital Explained: Why syndication distributions are usually not taxed when paid, how they lower your basis, when one becomes gain and how refinance payouts work.
• Phantom Income in a Syndication: Tax Without Cash, and Tax Distributions: Why a syndication K-1 can show taxable income you did not receive in cash, the usual causes, how tax distribution clauses work and what investors can do.
• Does the QBI (Section 199A) Deduction Apply to Syndication Income?: When syndication rental income counts as qualified business income, how the Rev. Proc. 2019-38 safe harbor works and what changed in 2025.
• Net Investment Income Tax on Syndication Income: Who Owes the 3.8%: Does the 3.8% net investment income tax apply to syndication rental income and sale gain? Thresholds, Form 8960 and the real estate professional exception.
• Is K-1 Income Earned Income? Syndication Investors' Answer: For a limited partner in an apartment syndication, K-1 rental income is generally not earned income or self-employment income. What that means.
• Preferred Return Tax Treatment: Is It a Guaranteed Payment?: Is a preferred return a guaranteed payment under IRC 707(c)? Usually not in an LLC syndication. When it can be, what changes and where the K-1 shows it.
• Estimated Tax Payments for Syndication Investors: Do You Need Them?: Do syndication investors owe quarterly estimated tax on K-1 income? Safe harbor rules, due dates, the Form 2210 penalty and planning around a late K-1.

State taxes

• Why Syndication Investors File Nonresident State Tax Returns: Why an apartment syndication can require a nonresident state tax return: source income, state K-1 schedules, withholding, composite returns and PTET.
• Pass-Through Entity Tax Elections and Syndication Investors: What a state pass-through entity (PTE) tax election means when your syndication LLC makes it: the SALT workaround, who decides and what to ask your CPA.

The sale and exit

• Depreciation Recapture When a Syndicated Building Sells: How depreciation recapture works when a syndicated apartment building sells: the gain buckets, basis, released passive losses and a hypothetical example.
• Can You 1031 Exchange Your Share of a Syndication Sale?: Can an investor 1031 exchange their share when a syndicated apartment building sells? Usually not alone. The entity-level and drop-and-swap options.
• Selling Your Syndication Interest: Section 751 Hot Assets, Form 8308 and Your Tax Bill: If you sell an apartment syndication interest before the deal sells, part of your gain can be ordinary income under Section 751. How it is figured, Form 8308 and K-1 codes.
• Section 754 Election in a Syndication: What It Does and When It Matters: What a Section 754 election does for a syndication LLC taxed as a partnership: the basis step-up, when it applies, how it is made and what it costs to administer.

Retirement accounts

• Investing in Syndications With a Self-Directed IRA or Solo 401(k): Can a self-directed IRA or Solo 401(k) invest in a syndication? Custodian steps, prohibited transactions, UBTI on debt, RMDs, K-1s and a checklist.
• UBTI and IRAs in Apartment Syndications: When Debt-Financed Income Is Taxed: An IRA that invests in a leveraged apartment syndication may owe tax on the debt-financed share of income. How UBTI works, with a simple labelled example.

For sponsors

• Sponsor's Year-End Calendar: From Close of Books to K-1s: A calendar by month for syndication sponsors from year-end close to filed return and delivered K-1s: what to gather, extension dates and what to tell investors.
• Form 1065 Late Filing Penalty: What a Late Return Costs a Syndication: A late partnership return costs $255 per partner per month, and late K-1s cost $340 each. How the math works for a syndication, extensions, and how to ask for relief.
• 1099 Reporting for an Apartment Syndication LLC: Who Gets One and When: Which payments an apartment deal company reports on Forms 1099-NEC and 1099-MISC, the new $2,000 threshold for 2026 payments, property manager rules and deadlines.
• CPA Guide to a Real Estate Syndication's Tax Work: What a CPA does for an apartment syndication: the partnership return, K-1s, deadlines, basis and state filings, and what to ask the sponsor for.
• Syndication Costs Under Section 709: What Sponsors Can Deduct: IRC 709 for apartment deals: organization costs (up to $5,000, the rest over 180 months) vs. syndication costs that are never deductible, sorted.
• How Is the Sponsor's Promote Taxed? Section 1061 and the Three-Year Rule: Section 1061 can turn promote gain into short-term gain unless held over three years. What counts, the section 1231 exclusion, what to ask your CPA.
• Partnership Representative: Who Handles an IRS Audit of Your Syndication (and Why It Matters): Under the BBA audit rules, a syndication's partnership representative binds every investor in an IRS audit. Who to name, why most deals can't elect out, and the push-out.

How DoorRaise fits in

DoorRaise helps sponsors raise equity for apartment buildings with 5 or more units from their friends and followers, and runs the investor side after closing: quarterly distributions from the deal's bank account, investor updates and K-1 delivery. The deal's accountant prepares the K-1s; DoorRaise delivers them. DoorRaise also forms the deal's LLC, prepares the offering documents, files Form D and verifies every investor's accreditation, in 506(b) and 506(c) deals. Investors fund by wire into escrow at Enterprise Bank & Trust. DoorRaise charges two flat fees: $1,500 to set up (non-refundable) and $5,000 a year for administration, the first year paid at closing from the money raised and only if the deal closes.

Before you invest, use the free list of questions to ask a sponsor.

FAQ

What tax form do syndication investors receive?

A Schedule K-1 from the deal's partnership return, showing their share of income, losses, depreciation and distributions.

Who prepares the K-1s?

The deal's accountant prepares the partnership return and the K-1s. On DoorRaise deals, DoorRaise delivers them to investors.

This article is general information, not legal, tax or investment advice. Each linked guide states the date its rules and figures are as of. DoorRaise is not a lender, law firm, broker-dealer, investment adviser or funding portal.