Investments & K-1s
Partnerships, PTPs & Complex Returns
Complex investment portfolios — particularly those with K-1s from publicly traded partnerships or private funds — require a level of care that most preparers aren't equipped to handle correctly.
If you receive K-1s from any source — an estate, a trust, a partnership, or a publicly traded partnership (PTP) — your return is more complex than a standard filing. K-1 income retains its character as it flows through, each type reported differently, and the rules around passive activity, at-risk limitations, and multi-state filing obligations add additional layers that require specific expertise.
Publicly traded partnerships (PTPs)
PTPs — sometimes called MLPs (master limited partnerships) — are among the most complex items on an individual tax return. A single PTP K-1 can trigger:
- Ordinary income from operations
- Passive activity income or loss subject to the at-risk and passive activity rules
- Unrecaptured Section 1250 gain on sale
- Section 751 "hot asset" ordinary income on sale
- Net investment income subject to the 3.8% NIIT
- State filing obligations in every state where the PTP operates
- Basis tracking across multiple years — critical for calculating gain or loss on sale
K-1s from estates and trusts
Schedule K-1 (Form 1041) income from an estate or trust retains its character — ordinary income, qualified dividends, capital gains, tax-exempt income — each reported differently on your 1040. In the final year of an estate or trust, excess deductions on termination may also pass through to you — and these keep their own character too: administration costs are often deductible above the line under Section 67(e) rather than as a miscellaneous itemized deduction, while any NOL or capital loss carryover passes through as exactly that. This is a frequently missed opportunity. We coordinate with the entity return preparer when we're handling both sides of the engagement.
Passive activity rules and at-risk limitations
Losses from passive investments — including most limited partnership interests — can only be used to offset passive income, not ordinary income. Suspended losses carry forward and are only released when the investment is fully disposed of. Tracking suspended losses across years, and making sure they're properly released on sale, is a detail that's frequently mishandled.
Net Investment Income Tax (NIIT)
The 3.8% NIIT applies to the lesser of net investment income or the amount by which modified AGI exceeds the threshold ($200,000 single / $250,000 married filing jointly). For investors with significant portfolios — especially those receiving large distributions from estates or trusts — this tax can be substantial.
Multi-state filing obligations
PTPs and other partnership investments often operate in multiple states. Each state where the partnership has nexus may require a nonresident state return from the individual investor — even if they've never set foot in that state. We track these obligations and prepare all required state filings as part of the engagement.
What we need to get started
- All K-1s received — partnerships, S corporations, estates, trusts
- Brokerage statements (1099-B, 1099-DIV, 1099-INT)
- Prior year tax return — for passive loss carryforward amounts and basis tracking
- Any PTP sale documentation including the K-1 for the year of sale
- Cost basis records for investments sold during the year