Henderson High Income Trust plc (LSE:HHI) raised its Dividend 2.8% to 10.90 pence for 2025, its 13th consecutive year of growth, and covered it from Earnings with a small surplus added to reserves. Quarterly payments continue in 2026. This article reviews what supports the income.

Company Overview

The trust aims to provide a high dividend income stream while maintaining the prospect of Capital growth. It invests in a diversified selection of well-known and smaller UK companies and allocates part of its portfolio to fixed interest securities and listed alternative income trusts, including renewable infrastructure funds. At 31 December 2025, net Assets were GBP 340.2 million and net asset value per share was 198.77 pence, compared with 174.72 pence a year earlier. The share price was 187.50 pence.

Dividend Profile

The trust pays four quarterly interim dividends, in January, April, July and October. In 2026, the first and second interim payments were 2.775 pence each, paid on 24 April and 24 July, and a third interim of 2.8 pence was announced on 6 July for payment on 30 October 2026 to shareholders registered on 11 September 2026. The stock table shows a trailing Dividend Yield of 5.26%, trailing Diluted Earnings per Share of GBP 0.27 and a price-to-earnings ratio of 7.99.

Dividend Sustainability Analysis

Investment trusts can retain surplus income in Revenue reserves in good years and use them in leaner ones. The trust has used this ability to smooth payments while growing the dividend.

Payout Ratio and Earnings Coverage

Revenue return per share was 11.28 pence in 2025, compared with 10.74 pence in 2024, against a dividend of 10.90 pence. This gives cover of about 103%. The board noted that earnings were sufficient to cover the full-year dividend and allowed a small amount to be added to revenue reserves.

Adjusted Cash Flow Coverage

The mix of UK shares, fixed interest securities and alternative income trusts diversifies income across different payers and payment cycles. This reduces reliance on any one stream, and the board reviews revenue projections from the Fund Manager throughout the year.

Balance Sheet and Leverage

Revenue reserves increased to GBP 11.0 million at the end of 2025. The trust uses gearing as set out in its policy, and the Annual Report gives the position. Given the level of reserves and income, the board described the trust as well positioned going forward.

Liquidity

The portfolio consists mainly of listed securities that can be traded in the market. No shares were issued or bought back between 1 January and 23 March 2026, so Share Capital remained unchanged.

Revenue Stability and Profit Trends

Net asset value total return was 20.4% in 2025, in line with the benchmark return of 20.6%, and share price total return was 22.6%. Revenue return per share has risen, and the dividend yield at the year end was 5.8%. Corporate earnings across the portfolio remained healthy in the first half of 2026, according to the half-year report.

Interest Rate and Commodity Exposure

Fixed interest holdings provide income that responds to interest rates, while UK shares include sectors such as energy and financials that respond to commodity prices and rates. A BP holding was added to during the half year.

Counterparty Concentration

The portfolio is diversified across many issuers, sectors and instrument types. Position limits apply under the Investment policy, and a deputy fund manager with 30 years of experience was appointed in 2026.

Management Commentary

The chair, Jeremy Rigg, said in the September 2026 half-year report that overall corporate profitability has remained healthy, that dividend payout rates have continued to be positive and that the board remains confident in the trust's ability to provide a high income return. He noted that the board regularly reviews prospective income from the portfolio.

Sector-Specific Dividend Risks

Trust income depends on dividends and interest from the holdings. Corporate dividend decisions, Credit conditions and market valuations can influence income. Revenue reserves help to smooth short-term changes.

Key Risks to Monitor

1. Portfolio company dividends and interest drive revenue return.

2. Revenue cover is close to 100%.

3. Gearing magnifies movements in net asset value.

4. Interest Rate changes affect fixed interest holdings.

5. Reserves are finite, though currently growing.

Bull Case

Supporters point to 13 consecutive years of dividend growth, earnings that cover the dividend, GBP 11.0 million of revenue reserves, a diversified income structure and a quarterly payment pattern that was maintained and raised for the third interim in 2026.

Bear Case

A measured view notes that cover was modest and that growth in the payout has been small in the latest year. Income depends on corporate dividends and interest, which move with the economy.

Latest News and Developments

Half-year results to 30 June 2026 were issued on 8 September 2026, with a third Interim Dividend of 2.8 pence payable on 30 October 2026. A deputy fund manager was appointed during 2026, and the board remains confident in the income outlook.

Dividend Sustainability Rating

Rating: Sustainable

The rating reflects full earnings cover, reserves that continue to grow, a diversified income structure and a long run of annual increases.

Investor Takeaway

Henderson High Income Trust offers a high income stream supported by a mix of UK shares, bonds and alternative income holdings. Earnings cover the dividend, reserves add flexibility, and the trust has increased its payout for 13 years.