| Year | Undistributed portion of distributable net income | Taxes imposed on the trust attributable to the undistributed net income | Undistributed net income |
|---|---|---|---|
| 1974 | $12,100 | $3,400 | $8,700 |
| 1975 | 16,100 | 5,200 | 10,900 |
| 1976 | 6,100 | 1,360 | 4,740 |
| 1977 | None | None | None |
| 1978 | 10,100 | 2,640 | 7,460 |
| Undistributed net income as of the close of 1974 | $8,700 |
| Less: Accumulation distribution (1979) | 7,000 |
| Balance (undistributed net income as of the close of 1979) | 1,700 |
| Taxes imposed on the trust attributable to the undistributed net income as of the close of 1979 (1,700/8,700×$3,400) | 664 |
| Year | Undistributed net income | Taxes imposed on the trust |
|---|---|---|
| 1974 | $1,700 | $664 |
| 1975 | 10,900 | 5,200 |
| 1976 | 4,740 | 1,360 |
| 1977 | None | None |
| 1978 | 7,460 | 2,640 |
| 1979 | None | None |
| Distributable net income | $20,100 |
| Less: Taxes imposed on the trust attributable to the undistributed net income | 7,260 |
| Undistributed net income as of the close of 1974 | 12,840 |
| Accumulation distribution | $5,420 |
| Taxes deemed distributed (5,420/ 12,840×$7,260) | 3,064 |
| Total | 8,484 |
| Undistributed net income as of the close of 1974 | $12,840 |
| Less: 1975 accumulation distribution deemed distributed on December 31, 1974 (paragraph (c) of this example) | 5,420 |
| Undistributed net income for 1974 as of the close of 1975 | 7,420 |
| Taxes imposed on the trust attributable to undistributed net income as of the close of 1974 | $7,260 |
| Less: Taxes deemed distributed in 1974 | 3,064 |
| Taxes attributable to the undistributed net income determined as of the close of 1975 | 4,196 |
| Accumulation distribution | $5,420 |
| Taxes deemed distributed (5,420/ 7,420×$4,196) | 3,064 |
| Total | 8,484 |
| Undistributed net income for 1974 as of the close of 1975 | $7,420 |
| Less: 1976 accumulation distribution deemed distributed on December 31, 1974 (paragraph (f) of this example) | 5,420 |
| Undistributed net income for 1974 as of the close of 1976 | 2,000 |