Trust Distribution Calculator
Each beneficiary's share of a trust distribution.
Calculate each beneficiary's share of a trust distribution based on their weighting. Enter beneficiary a weight and beneficiary b weight for an instant result.
What this tool does
Enter total distribution and weights for up to four beneficiaries. The tool shows each beneficiary's share.
Enter Values
Formula Used
Spotted something off?
Calculations, display, or translation — let us know.
Disclaimer
Results are estimates for educational purposes only. They do not constitute financial advice. Consult a qualified professional before making financial decisions.
Trust distributions rarely split evenly. Weightings reflect intent — larger shares for primary beneficiaries, smaller for extended family, specific carve-outs for dependents. A 500,000 distribution with weights 40/30/20/10 produces 200,000, 150,000, 100,000, 50,000. Running the split before instructing a trustee avoids last-minute disputes.
Quick example
With total distribution of 500,000 and beneficiary a weight of 40 (plus beneficiary b weight of 30 and beneficiary c weight of 20), the result is 200,000.00. Change any figure and watch the output shift — it's often more useful to see the pattern than to memorise the formula.
Which inputs matter most
You enter Total Distribution, Beneficiary A Weight, Beneficiary B Weight, Beneficiary C Weight, and Beneficiary D Weight. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.
What's happening under the hood
Pro rata distribution by weights. Each beneficiary's share = total × (their weight / sum of all weights). The formula is listed in full below. If the number looks off, you can retrace the calculation by hand — that's the point of showing the working.
The annual review habit
Plug new numbers in every year. Income changes, expenses shift, markets move. A plan that isn't revisited quietly drifts out of date. This tool is cheap to re-run — so re-run it.
What this doesn't capture
Real plans get re-run against new information every year or two. The result here is a reasonable direction, not a destination. Treat it as a starting point for thinking, not a commitment to a specific future.
Where to go next
This calculation rarely sits alone in a planning exercise. If you're running these numbers, you'll probably also want the trust fund growth calculator, the inheritance split calculator, and the annual net worth tracker — each one answers a different question in the same territory. Treating them as a set rather than in isolation usually produces a more honest picture.
Trust distribution produces per-beneficiary shares based on the inputs provided.
Inputs
This example uses typical values for illustration. Adjust the inputs above to match a specific situation and see how the result changes.
Sources & Methodology
Methodology
Pro rata distribution by weights. Each beneficiary's share = total × (their weight / sum of all weights).
References
Frequently Asked Questions
Why use weights instead of percentages?
What about unequal lump plus residual splits?
Tax implications?
Can weights change over time?
Related Calculators
Trust Fund Growth Calculator
Project the future value of a trust fund given initial principal, annual contributions, growth rate, and horizon. Instant result, no signup.
Inheritance Split Calculator
Calculate per-heir inheritance share after debts, expenses, and charitable contributions from total estate. Free and runs in your browser.
Annual Net Worth Tracker
Track your annual net worth change: this year's total minus last year's, with growth rate and monthly contribution implied.
More Planning Calculators
Planning
Annual Net Worth Tracker
Track your annual net worth change: this year's total minus last year's, with growth rate and monthly contribution implied.
Planning
Apprenticeship vs University Calculator
Compare lifetime earnings between university degree and apprenticeship route over career. Enter university cost and university years for an instant result.
Planning
Barista FIRE Calculator
Calculate Barista FIRE target for partial financial independence with part-time income. Enter expenses and partial income annual for an instant result.
Planning
Buy vs Lease Car Calculator
Compare the total cost of buying a car outright against leasing across a matched ownership period. Enter buy price to see net cost of each path over the period.
Planning
Care Home Affordability Calculator
Calculate how long savings cover care home costs accounting for other income and inflation. Enter care cost and other income monthly for an instant result.
Planning
Career Break Finances Calculator
Calculate total financial cost of a career break including lost salary, employer match, and expenses during time off. Free and educational.
Explore Other Financial Tools
Savings
House Deposit Savings Calculator
Calculate house deposit target and timeline to reach it from current savings and monthly contributions. Enter property price and see the result instantly.
Income
Second Job Income Calculator
Calculate effective hourly pay from a second job after marginal tax impact. Enter hours per week and hourly rate to see net hourly pay and annual net income.
Digital Nomad & Freelance
Freelancer Bid Calculator
Calculate project bid price from hours and rate with appropriate overhead, profit, and contingency markups. Enter estimated hours and see the result instantly.