PAA 20-Year Tax Projection

500 units of Plains All American Pipeline at $20/unit — IRS Partner’s Basis Worksheet methodology with full citations.

This tool provides projections based on assumptions. It does not constitute tax, legal, or investment advice. Consult a qualified CPA or financial advisor before making decisions based on this output.

Assumptions for this projection:

  • Position: 500 units at $20 per unit ($10,000 total)
  • Distribution: $0.42/quarter ($1.67/year), growing at 8.0%
  • Growth source: 5yr CAGR inflated by recovery from 50% cut in 2020. 10yr CAGR is NEGATIVE — current distribution still well below 2016 level ($2.80/yr). Distribution increasing ~$0.10-0.15/year.
  • ROC: ~80% of distribution (estimated from historical K-1 data)
  • Federal tax bracket: 32% (Married Filing Jointly)
  • NIIT: 3.8% on investment income above $250,000 threshold
  • §199A QBI deduction: active (20% on qualified PTP income)
  • K-1 entities: 1
  • Operating states: ~18

These are default assumptions based on historical data. For your actual numbers → Enter your position in the Portfolio Simulator

Last computed: 2026-04-03 | Engine: 429 tests passing | v0.1.0

Your broker says

Cost Basis: $10,000

Gain if sold: $9,898

Tax owed: $1,861

The IRS says

Adjusted Basis: $0.00

Actual gain: $19,898

Actual tax: $5,850

⚠ BROKER UNDERSTATES YOUR TAX BY $3,989

Zero-Basis Year

Year 11

20-Year Cash Collected

$38,215

20-Year Federal Tax

$6,113

Effective Tax Rate

16.0%

§751 Recapture (est.)

~$19,898

Estimated — actual determined by MLP sales schedule

§1014 Step-Up Savings

$5,850

Basis Erosion — PAA Over 20 Years

Blue line: base case (8.0% growth). Shaded area: sensitivity range. Yellow marker: basis reaches zero in Year 11.

PAA IRS Adjusted Basis Over 20 Years $0.00 $2,625 $5,250 $7,875 $10,500 1 5 10 15 20 IRS Basis ($) Year Year 11

Cumulative Cash vs. Tax — PAA

The growing gap between distributions received and taxes paid is the core value proposition of MLP holding.

PAA Cumulative Cash Collected vs Tax Paid Over 20 Years $0.00 $10,509 $21,018 $31,527 $42,037 1 5 10 15 20 Year $38,215 $6,113 Distributions Received Cumulative Tax Paid

PAA 20-Year Projection Table

Year Distribution K-1 Taxable §731 Gain Federal Tax Ending Basis Cum. Cash Eff. Rate
1 $835 $167 $49 $9,332 $835 5.9%
2 $902 $180 $53 $8,611 $1,737 5.9%
3 $974 $195 $57 $7,832 $2,711 5.9%
4 $1,052 $210 $62 $6,991 $3,763 5.9%
5 $1,136 $227 $67 $6,082 $4,899 5.9%
6 $1,227 $245 $72 $5,100 $6,126 5.9%
7 $1,325 $265 $78 $4,040 $7,451 5.9%
8 $1,431 $286 $84 $2,895 $8,882 5.9%
9 $1,546 $309 $91 $1,659 $10,428 5.9%
10 $1,669 $334 $98 $324 $12,097 5.9%
11 $1,803 $361 $1,118 $316 $0.00 $13,900 7.4%
12 $1,947 $389 $1,558 $407 $0.00 $15,847 9.0%
13 $2,103 $421 $1,682 $440 $0.00 $17,950 10.4%
14 $2,271 $454 $1,817 $475 $0.00 $20,221 11.6%
15 $2,453 $491 $1,962 $513 $0.00 $22,674 12.6%
16 $2,649 $530 $2,119 $554 $0.00 $25,323 13.5%
17 $2,861 $572 $2,289 $599 $0.00 $28,184 14.2%
18 $3,090 $618 $2,472 $646 $0.00 $31,274 14.9%
19 $3,337 $667 $2,669 $698 $0.00 $34,611 15.5%
20 $3,604 $721 $2,883 $754 $0.00 $38,215 16.0%

IRS Partner’s Basis Worksheet — Key Years

Partner’s Instructions for Schedule K-1 (Form 1065), Worksheet for Adjusting the Basis of a Partner’s Interest in the Partnership, Lines 1–14.

Year 1 — IRS Partner’s Basis Worksheet

Line 1: Beginning Basis $10,000 IRC §705(a) — $10,000
Line 2: Capital Contributions $0.00 IRC §722 — $0
Line 3: Increased Liabilities $0.00 IRC §752(a) — $0 (no liability increase)
Line 4: Income and Gain Items $167 IRC §705(a)(1) — $0.33/unit × 500 units = $167
Line 7: Subtotal $10,167 IRC §705(a) — $10,000 + $0 + $0 + $167 = $10,167
Line 8: Distributions $835 IRC §731 — $1.67/unit × 500 units = $835
Line 9: Decreased Liabilities $0.00 IRC §752(b) — $0 (no liability decrease)
Line 10: Basis Before Losses $9,332 IRC §731(a)(1) — $10,167 - $835 - $0 = $9,332
Line 11: Loss and Deduction Items $0.00 IRC §704(d) — $0
Line 14: Ending Basis $9,332 IRC §705(a) — $9,332 - $0 = $9,332

Year 5 — IRS Partner’s Basis Worksheet

Line 1: Beginning Basis $6,991 IRC §705(a) — $6,991
Line 2: Capital Contributions $0.00 IRC §722 — $0
Line 3: Increased Liabilities $0.00 IRC §752(a) — $0 (no liability increase)
Line 4: Income and Gain Items $227 IRC §705(a)(1) — $0.45/unit × 500 units = $227.20
Line 7: Subtotal $7,218 IRC §705(a) — $6,991 + $0 + $0 + $227.20 = $7,218.20
Line 8: Distributions $1,136 IRC §731 — $2.27/unit × 500 units = $1,136.01
Line 9: Decreased Liabilities $0.00 IRC §752(b) — $0 (no liability decrease)
Line 10: Basis Before Losses $6,082 IRC §731(a)(1) — $7,218.20 - $1,136.01 - $0 = $6,082.19
Line 11: Loss and Deduction Items $0.00 IRC §704(d) — $0
Line 14: Ending Basis $6,082 IRC §705(a) — $6,082.19 - $0 = $6,082

Year 10 — IRS Partner’s Basis Worksheet

Line 1: Beginning Basis $1,659 IRC §705(a) — $1,659
Line 2: Capital Contributions $0.00 IRC §722 — $0
Line 3: Increased Liabilities $0.00 IRC §752(a) — $0 (no liability increase)
Line 4: Income and Gain Items $334 IRC §705(a)(1) — $0.67/unit × 500 units = $333.83
Line 7: Subtotal $1,993 IRC §705(a) — $1,659 + $0 + $0 + $333.83 = $1,992.83
Line 8: Distributions $1,669 IRC §731 — $3.34/unit × 500 units = $1,669.17
Line 9: Decreased Liabilities $0.00 IRC §752(b) — $0 (no liability decrease)
Line 10: Basis Before Losses $324 IRC §731(a)(1) — $1,992.83 - $1,669.17 - $0 = $323.66
Line 11: Loss and Deduction Items $0.00 IRC §704(d) — $0
Line 14: Ending Basis $324 IRC §705(a) — $323.66 - $0 = $324

Year 15 — IRS Partner’s Basis Worksheet

Line 1: Beginning Basis $0.00 IRC §705(a) — $0
Line 2: Capital Contributions $0.00 IRC §722 — $0
Line 3: Increased Liabilities $0.00 IRC §752(a) — $0 (no liability increase)
Line 4: Income and Gain Items $491 IRC §705(a)(1) — $0.98/unit × 500 units = $490.51
Line 7: Subtotal $491 IRC §705(a) — $0 + $0 + $0 + $490.51 = $490.51
Line 8: Distributions $2,453 IRC §731 — $4.91/unit × 500 units = $2,452.56
Line 9: Decreased Liabilities $0.00 IRC §752(b) — $0 (no liability decrease)
Line 10: Basis Before Losses $0.00 IRC §731(a)(1) — $490.51 - $2,452.56 - $0 = -$1,962.05 → $0 (§731 gain: $1,962.05)
Line 11: Loss and Deduction Items $0.00 IRC §704(d) — $0
Line 14: Ending Basis $0.00 IRC §705(a) — $0 - $0 = $0

Year 20 — IRS Partner’s Basis Worksheet

Line 1: Beginning Basis $0.00 IRC §705(a) — $0
Line 2: Capital Contributions $0.00 IRC §722 — $0
Line 3: Increased Liabilities $0.00 IRC §752(a) — $0 (no liability increase)
Line 4: Income and Gain Items $721 IRC §705(a)(1) — $1.44/unit × 500 units = $720.72
Line 7: Subtotal $721 IRC §705(a) — $0 + $0 + $0 + $720.72 = $720.72
Line 8: Distributions $3,604 IRC §731 — $7.21/unit × 500 units = $3,603.61
Line 9: Decreased Liabilities $0.00 IRC §752(b) — $0 (no liability decrease)
Line 10: Basis Before Losses $0.00 IRC §731(a)(1) — $720.72 - $3,603.61 - $0 = -$2,882.89 → $0 (§731 gain: $2,882.89)
Line 11: Loss and Deduction Items $0.00 IRC §704(d) — $0
Line 14: Ending Basis $0.00 IRC §705(a) — $0 - $0 = $0

Sensitivity Analysis

Scenario Growth Year 10 Basis Year 20 Basis Zero-Basis Year 20-Year Tax Eff. Rate
Conservative 7.0% $770 $0.00 Year 11 $5,283 15.4%
Base Case 8.0% $324 $0.00 Year 11 $6,113 16.0%
Aggressive 10.0% $0.00 $0.00 Year 10 $8,124 17.0%

Sell vs. Inherit in Year 20

If Sold in Year 20

Market Value: $19,898

Adjusted Basis: $0.00

Total Gain: $19,898

§751 Ordinary (est.): ~$19,898

Remaining LTCG: $0.00

Tax on Sale: $5,850

If Inherited in Year 20

Market Value: $19,898

Heir’s Stepped-Up Basis: $19,898

§751 recapture: eliminated

§731 gains: eliminated

Heir’s Tax If Sold: $0

Tax saved by holding until death: $5,850 — IRC §1014(a)

Frequently Asked Questions

What is my PAA basis after 10 years?

After 10 years of holding 500 PAA units, your IRS-adjusted basis drops from $10,000 to $324. This is calculated using the IRS Partner’s Basis Worksheet (IRC §705(a)), Lines 1–14, applying 8.0% annual distribution growth and ~80% return of capital.

When does PAA basis reach zero?

At base-case assumptions, PAA basis reaches zero in Year 11. After that, distributions trigger §731 capital gains — you owe tax on distributions even though your brokerage statement shows no change. This is sometimes called “phantom income.”

How much tax if I sell PAA after 20 years?

If you sell 500 PAA units after 20 years at an estimated market value of $19,898, total tax on sale is $5,850. This includes ~$19,898 in §751 ordinary income recapture (taxed at up to 37%) and $0.00 in long-term capital gains.

Should I sell PAA or hold until death?

Selling in Year 20 triggers $5,850 in taxes. If inherited instead, your heirs receive a §1014 stepped-up basis of $19,898, eliminating all deferred taxes and §751 recapture. The tax difference is $5,850.

What is PAA’s distribution yield after tax?

The nominal distribution yield is 8.3%. Due to the high return-of-capital percentage (~80%), most of the distribution is tax-deferred. The 20-year effective tax rate on cash received is 16.0%, making the after-tax yield approximately 7.0%.

Should I hold PAA in an IRA?

Holding MLPs in an IRA triggers Unrelated Business Taxable Income (UBTI) under IRC §512. If UBTI exceeds $1,000 in a tax year, the IRA must file Form 990-T and pay tax at trust rates. For PAA with 500 units generating ~$167 in annual taxable income, this threshold may or may not be reached depending on the year. Most MLP investors prefer taxable accounts to preserve the §1014 step-up benefit.

What happens to PAA when I die?

Under IRC §1014(a), your heirs receive a stepped-up basis equal to the fair market value at date of death. For this projection, that means a basis of $19,898 instead of the eroded basis of $0.00. All accumulated §751 recapture (~$19,898) is eliminated. Tax saved: $5,850.

How complicated is PAA’s K-1?

PAA issues 1 K-1 form per year. The K-1 includes state allocation schedules for ~18 states, which may require additional state tax filings depending on your home state’s de minimis thresholds.

Related Tools & Guides

Methodology

Computed using the IRS Partner’s Basis Worksheet, Lines 1–14, from the Partner’s Instructions for Schedule K-1 (Form 1065). Every calculated value maps to a specific IRC section, K-1 box, and tax return form line.

Projection engine: 429 test cases passing, last verified 2026-04-03. Engine version 0.1.0.

Built by Lucas Andersen. Proprietary energy trader and direct MLP holder.

Partner’s Instructions for Schedule K-1 (Form 1065)IRS Publication 541 (Partnerships)