Outside Basis vs. Capital Account: What Syndication Investors Should Track
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Outside basis is your personal tax basis in your syndication interest: what you paid, plus your share of the partnership's income and its debt, minus distributions and the losses you have used. The capital account on your K-1 is the partnership's record of your equity, kept on its own method. The two numbers are often different, and you are the one who has to track outside basis, because it limits how much loss you can deduct and when a distribution becomes taxable.
This post is for investors who see two numbers and wonder which one matters. It is general information as of October 2026, not tax advice; ask your own tax adviser.
How is outside basis built?
| Step | Effect on outside basis |
|---|---|
| Cash you invest | Increases |
| Your share of the partnership's debt (for example the property loan) | Increases, under IRC 752 |
| Your share of taxable income each year | Increases |
| Cash distributions | Decreases |
| Your share of deductions and losses you can use | Decreases |
| A reduction in your share of debt (for example a loan payoff or sale) | Decreases, treated like a distribution |
IRC 705 sets the adjustments for income and losses, IRC 722 sets the starting basis, and IRC 733 says distributions reduce basis.
How is that different from the capital account?
The capital account shows what the partnership owes you in equity. On a K-1 it appears in Item L as a beginning balance, contributions, income, withdrawals and an ending balance. It is not reduced by your share of nonrecourse debt, while outside basis includes it. That is a main reason the two diverge, and a building with a large mortgage often makes outside basis much higher than the capital account. See the capital account on a K-1 for the Item L view.
Worked example (illustrative)
This hypothetical example uses round numbers and ignores fees. An investor puts in $100,000 and receives a 2% share of a partnership with $5,000,000 of nonrecourse debt.
| Item | Amount |
|---|---|
| Cash invested | $100,000 |
| Share of debt (2% of $5,000,000) | $100,000 |
| Starting outside basis | $200,000 |
| Year 1 share of loss from depreciation | ($30,000) |
| Year 1 distributions | ($6,000) |
| Outside basis at year end | $164,000 |
A loss case: suppose the building later sells for just enough to repay the loan and the investor receives no cash. The $100,000 share of debt that goes away is treated like a distribution, so basis falls from $164,000 to $64,000, and the rest is generally a loss for the investor, subject to its own limits. The numbers depend on the actual sale. Returns are never guaranteed and you can lose money in a syndication.
Why does outside basis matter?
- Loss limits. Losses on the K-1 are deductible only up to basis (then limited again by the at-risk and passive rules). See at-risk rules and passive loss carryover.
- Taxable distributions. A cash distribution above basis is gain.
- Gain on sale. Gain is the amount you receive plus debt relief, less basis.
- Inheritance. An heir's basis steps up under IRC 1014. See what happens when an investor dies.
How do you keep track?
- Start a simple sheet with your investment and your first-year share of debt.
- Each year, add K-1 income and subtract losses, using the income and loss items your CPA identifies on the K-1.
- Subtract distributions (Box 19) and adjust for changes in your share of liabilities (Item K).
- Compare your total to the K-1 capital account and note why they differ.
- Give the sheet to your CPA each year.
How DoorRaise fits in
DoorRaise helps sponsors raise equity for apartment buildings from their friends and followers under Rule 506(b) or 506(c). The deal's accountant prepares the K-1s; DoorRaise delivers each K-1 to the investor, which the $5,000 yearly administration fee covers, and gives no tax advice or basis calculation. Fees: $1,500 to set up (non-refundable), then $5,000 a year from closing (only if the deal closes). See investor reporting and pricing.
FAQ
What is outside basis in a partnership?
The partner's own tax basis in the partnership interest. It starts at cost and changes with income, losses, distributions and debt.
Is the K-1 capital account the same as basis?
No. The capital account is the partnership's record of equity. Outside basis also includes your share of partnership debt.
Can basis go negative?
No. Losses over basis are suspended and carried forward. A distribution over basis is taxable gain.
Who tracks outside basis?
The partner. The partnership may give help, but the IRS expects each partner to know their own basis.
Does the K-1 show my basis?
Not as one line. Item L shows capital and Item K shows your share of liabilities, which together help you rebuild it.
Sources
- 26 U.S.C. 705: Determination of basis of partner's interest (Cornell LII)
- 26 U.S.C. 733: Basis of distributee partner's interest (Cornell LII)
- 26 U.S.C. 752: Treatment of certain liabilities (Cornell LII)
- IRS: Publication 541, Partnerships
- IRS: Partners' Instructions for Schedule K-1 (Form 1065)
This article is general information as of October 2026, not tax, legal or investment advice. The example is hypothetical. Ask your own tax adviser. DoorRaise is not a law firm, broker-dealer, investment adviser or funding portal.