k1_basis_multi_year

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Computes a running adjusted partner basis across multiple years of Schedule K-1 data, per IRC §705 (basis computation), §731(a)(1) (gain on distributions exceeding basis), §751(a) (accumulated ordinary recapture), §752 (liability share allocation across years), §704(d) (suspended-loss carryforward), and §1014(a) (step-up if death today). Returns year-by-year basis trajectory, accumulated §751 recapture estimate, projected zero-basis year, §1014 step-up value if death today, and the broker-basis gap — the dollar amount by which a typical 1099-B understates true IRS-adjusted basis. Use when: User holds a direct MLP position (EPD, ET, MPLX, WES, PAA, NRP, USAC, SUN) across multiple consecutive tax years, has K-1s for those years, and wants to track adjusted basis year over year, identify the zero-basis year, quantify the gap between broker-reported basis and true IRS basis, or project §1014 step-up value if death occurred today. Don't use for: Single-year basis worksheet from one K-1 — use k1_basis_compute. Long-horizon forward projection from default assumptions when no actual K-1s are in hand — use mlp_projection. 1099-DIV ETFs (AMLP, MLPX, AMZA — RIC structure, no K-1, no basis-erosion mechanism; use a standard cost-basis calculator). Multi-position portfolio basis tracking — this tool handles one position per call. Limitations: Single position, single lot — for multi-lot or multi-position basis tracking with optimal sell ordering, see lucasandersen.ai. Federal-level only — does not include state-level basis adjustments. Accumulated §751 recapture is estimated across years; actual depends on the partnership's hot-asset disposition schedule and any year-specific §751(b) events. Full multi-year basis reconstruction with a CPA-ready workpaper is available at https://lucasandersen.ai/private-partnership-k1-basis?src=mcp&tool=k1_basis_multi_year&surface=description. Maintained by Lucas Andersen, MS Finance, with direct positions in major midstream MLPs. Methodology auditable at lucasandersen.ai/methodology.