SEC Form 424B3 filed by Eaton Vance Tax-Managed Buy-Write Income Fund Eaton Vance Tax-
$ETB
Investment Bankers/Brokers/Service
Finance
Filed pursuant to Rule 424(b)(3)
File No. 333-270448
EATON VANCE TAX-MANAGED BUY-WRITE INCOME FUND
Supplement to Prospectus dated May 4, 2023
The following replaces the Financial Highlights contained in the Prospectus:
| Year Ended December 31, | |||||
| 2023 | 2022 | 2021 | 2020 | 2019 | |
| Net asset value – Beginning of year | $13.100 | $16.440 | $14.590 | $15.260 | $14.040 |
| Income (Loss) From Operations | |||||
| Net investment income(1) | $0.090 | $0.092 | $0.061 | $0.133 | $0.146 |
| Net realized and unrealized gain (loss) | 2.138 | (2.189) | 3.058 | 0.493 | 2.370 |
| Total income (loss) from operations | $2.228 | $(2.097) | $3.119 | $0.626 | $2.516 |
| Less Distributions | |||||
| From net investment income | $(0.089) | $(0.089) | $(0.038) | $(0.130) | $(0.143) |
| From net realized gain | (0.533) | (1.156) | (0.062) | (0.492) | (0.422) |
| Tax return of capital | (0.496) | (0.021) | (1.196) | (0.674) | (0.731) |
| Total distributions | $(1.118) | $(1.266) | $(1.296) | $(1.296) | $(1.296) |
| Premium from common shares sold through shelf offering(1) | $ — | $0.023 | $0.027 | $ — | $ — |
| Net asset value – End of year | $14.210 | $13.100 | $16.440 | $14.590 | $15.260 |
| Market value – End of year | $12.980 | $13.150 | $17.120 | $15.000 | $16.400 |
| Total Investment Return on Net Asset Value(2) | 18.10% | (13.18)% | 22.40% | 5.07% | 18.50% |
| Total Investment Return on Market Value(2) | 7.47% | 16.31% | 23.98% | 0.51% | 32.93% |
| Ratios/Supplemental Data | |||||
| Net assets, end of year (000’s omitted) | $417,431 | $384,847 | $467,677 | $388,258 | $405,503 |
| Ratios (as a percentage of average daily net assets): | |||||
| Expenses | 1.11%(3) | 1.12%(3) | 1.10% | 1.12% | 1.11% |
| Net investment income | 0.66% | 0.64% | 0.39% | 0.97% | 0.99% |
| Portfolio Turnover | 9% | 21% | 6% | 8% | 2% |
(See related footnotes.)
| Year Ended December 31, | |||||
| 2018 | 2017 | 2016 | 2015 | 2014 | |
| Net asset value – Beginning of year | $16.350 | $15.500 | $15.520 | $16.310 | $16.250 |
| Income (Loss) From Operations | |||||
| Net investment income(1) | $0.148 | $0.156 | $0.189 | $0.198 | $0.170 |
| Net realized and unrealized gain (loss) | (1.172) | 1.980 | 1.087 | 0.308 | 1.186 |
| Total income (loss) from operations | $(1.024) | $2.136 | $1.276 | $0.506 | $1.356 |
| Less Distributions | |||||
| From net investment income | $(0.144) | $(0.150) | $(0.177) | $(0.189) | $(0.165) |
| From net realized gain | (0.108) | — | (0.482) | (0.368) | — |
| Tax return of capital | (1.044) | (1.146) | (0.637) | (0.739) | (1.131) |
| Total distributions | $(1.296) | $(1.296) | $(1.296) | $(1.296) | $(1.296) |
| Premium from common shares sold through shelf offering(1) | $0.010 | $0.010 | $ — | $ — | $ — |
| Net asset value – End of year | $14.040 | $16.350 | $15.500 | $15.520 | $16.310 |
| Market value – End of year | $13.450 | $16.730 | $16.520 | $16.690 | $15.900 |
| Total Investment Return on Net Asset Value(2) | (6.69)% | 14.30% | 8.68% | 3.21% | 8.94% |
| Total Investment Return on Market Value(2) | (12.65)% | 9.73% | 7.63% | 13.92% | 15.90% |
| Ratios/Supplemental Data | |||||
| Net assets, end of year (000’s omitted) | $372,509 | $417,859 | $382,921 | $382,897 | $402,145 |
| Ratios (as a percentage of average daily net assets): | |||||
| Expenses(3) | 1.11% | 1.11% | 1.12% | 1.11%(4) | 1.13% |
| Net investment income | 0.94% | 0.97% | 1.25% | 1.23% | 1.04% |
| Portfolio Turnover | 4% | 1% | 6% | 7% | 2% |
| (1) | Computed using average shares outstanding. |
| (2) | Returns are historical and are calculated by determining the percentage change in net asset value or market value with all distributions reinvested. Distributions are assumed to be reinvested at prices obtained under the Fund’s dividend reinvestment plan. |
| (3) | Includes a reduction by the investment adviser of a portion of its adviser fee due to the Fund’s investment in the Liquidity Fund (equal to less than 0.005% of average daily net assets for the years ended December 31, 2023 and 2022). |
| (4) | Excludes the effect of custody fee credits, if any, of less than 0.005%. Effective September 1, 2015, custody fee credits, which were earned on cash deposit balances, were discontinued by the custodian. |
March 22, 2024