BDC Dividend Reinvestment Calculator

A high dividend does not compound unless the cash buys more productive shares.

This calculator models that process. It separates dividend yield, dividend growth, share-price change, new contributions and estimated tax drag.

It does not predict a BDC's future.

A distribution is the shareholder end of a longer chain: borrower cash flow supports BDC income, BDC income supports the payout, and reinvestment puts that cash back into ownership. The calculator makes the compounding visible without pretending that every link will remain healthy.

The calculator displays its informational-use disclaimer directly above the inputs so the limits travel with the numbers, not only with the disclosure at the end of the page.

Calculate a reinvestment scenario

What the calculator measures

The model begins with a hypothetical $100 share price. Starting capital determines the initial share count.

The first-year dividend per share equals the starting price multiplied by the assumed cash yield. Dividend growth changes that per-share payment in later years.

Share-price change affects the value of existing shares and the number of new shares each reinvested dollar can buy.

Annual contributions purchase shares at each year-end price. When reinvestment is on, net distributions also purchase shares at that price.

When reinvestment is off, the model keeps net distributions as cash and adds them to ending wealth.

Why yield and price need separate inputs

A constant-yield shortcut assumes the dividend automatically changes with the share price. Real BDC dividends do not work that way.

Management and the board set the distribution. Portfolio income, credit losses, taxable income and prior coverage determine what the company can sustain.

The calculator therefore lets the dividend per share grow or shrink separately from the market price.

That distinction allows several useful stress tests:

• a stable dividend with a falling share price;
• a shrinking dividend with a recovering valuation;
• reinvestment at a persistent discount;
• a lower-yield BDC with stronger dividend growth;
• a taxable scenario with estimated annual distribution drag;
• a Roth-style scenario with zero current annual tax drag.

How estimated tax drag works

The tax-drag input reduces the distribution available for reinvestment or cash accumulation. It does not calculate an investor's tax return.

Assume a BDC produces $1,000 of modeled annual distributions and the investor enters 25% estimated tax drag. The model reinvests or retains $750.

Actual taxation depends on account type, income, jurisdiction, holding period and the issuer's final distribution character.

Use zero for a simplified tax-sheltered accumulation scenario. Do not treat zero as a statement about withdrawals from the account.

How to build a disciplined scenario

Start with a holding period rather than a desired ending value.

Use a cash yield that reflects the current regular dividend, not a temporary special distribution. Test a lower dividend-growth rate than the company's best historical period.

Run price assumptions on both sides of zero. A high current yield often appears because the market price already fell.

Add a dividend-decline case. Credit losses and lower benchmark rates can reduce BDC earnings.

The most useful result is a range, not the largest number.

What to watch is the combination of dividend change and share-price change. A scenario can look resilient when one aggressive assumption quietly offsets deterioration in the other.

What the calculator leaves out

The model uses annual steps. Real dividends arrive monthly or quarterly, and reinvestment prices change throughout the year.

It excludes brokerage restrictions, bid-ask spreads, fees, fractional-share rules, return-of-capital basis adjustments and corrected tax forms.

It does not model NAV directly. A price-growth assumption can hide portfolio deterioration unless the reader separately examines NAV and credit quality.

It also assumes the investor can continue holding through volatility. Real behavior can interrupt compounding.

Read the output correctly

Ending value includes shares at the final modeled price plus accumulated net distributions when reinvestment is off.

Total contributed includes starting capital and annual additions. It does not include reinvested dividends because those came from the investment.

Total distributions shows gross modeled cash produced before estimated tax drag. Ending shares shows how reinvestment and contributions changed ownership.

The modeled annualized return is shown only when no annual contributions are used. With contributions, the tool marks that figure unavailable; focus on ending value, total contributed and the year-by-year ledger instead.

The verdict

Dividend compounding is not a yield raised to a power.

It is a sequence of cash payments, purchase prices, share counts, taxes and changing business performance.

The calculator makes those assumptions visible. The investor's job is to make them humble.

Investor quick answers

What is dividend reinvestment?

Dividend reinvestment uses cash distributions to buy additional shares. Those shares can produce future distributions.

Does a 10% yield produce a 10% annual return?

No. Share-price changes, dividend changes, taxes and reinvestment prices also affect total return.

Should special dividends be included in the yield assumption?

Only when the scenario clearly treats them as uncertain. A recurring regular dividend provides a more conservative starting point.

How should a Roth IRA be modeled?

Use zero current annual tax drag for a simplified accumulation scenario, then review Roth contribution and withdrawal rules separately.

Is the calculator a forecast?

No. It is a transparent scenario model. Its output is only as credible as its assumptions.

Read next

Read BDCs in a Roth IRA for the historical MAIN case study and account rules.

Read BDC Yield vs. Total Return before interpreting the calculator's yield and price inputs.

Methodology

The model starts at a hypothetical $100 share price. It calculates initial shares, annual dividend per share, gross and net distributions, estimated tax drag, reinvested shares, annual contributions, ending market value and, when there are no annual contributions, a simple modeled annualized return.

Each year updates the share price and dividend per share using the selected assumptions. The public tool displays a year-by-year ledger so every result can be traced.

Source Notes

The tax treatment language follows IRS Publication 550. The BDC risk framework follows the SEC's investor bulletin on publicly traded BDCs, including its discussion of leverage, private-asset valuation, distributions and possible loss.

Tax Note

The tax discussion is general and simplified. BDC dividend taxation can vary by account type, holding, and the character of distributions. Investors should consult a qualified tax professional for personal tax questions.

Disclosure

The Drift is published by Drift Research LLC for informational and educational purposes only. Nothing published by The Drift constitutes personalized investment advice, financial advice, tax advice, accounting advice, legal advice, or a recommendation to buy, sell, or hold any security. The Drift is not a registered investment adviser, broker-dealer, financial planner, or fiduciary. Data and calculations are derived from sources believed reliable and from methods described in the applicable source and calculation notes, but they may contain errors, estimates, rounding differences, or information that has become outdated. Readers should review the original sources and make their own assessment. All investments involve risk, including possible loss of principal. Past performance and hypothetical results do not guarantee future results. Consult qualified professionals before acting.

About, Methodology & Disclosures