Decumulation Studio
Compare Roth conversion and withdrawal schedules across tax brackets, IRMAA, ACA, lifetime-tax, and terminal-wealth constraints.
Retirement tax planning becomes harder once conversions, withdrawals, account balances, Medicare thresholds, ACA credits, and capital gains interact across years.
Decumulation Studio models those interactions as explicit schedules so users can inspect which constraint is driving each year of the plan.
A conversion schedule changes the withdrawal path, and a withdrawal path can change the cost of each conversion. The studio keeps those decisions in the same modeling frame instead of treating them as separate calculators.
This is educational scenario modeling. It does not determine whether a conversion or withdrawal action is appropriate for a specific household or tax return.
Does the Decumulation Studio find a globally optimal plan?
No. It is a deterministic bracket-fill heuristic plus a marginal-cost search, not a stochastic or globally optimal solver. Use it for cliff analysis and tradeoff comparison rather than a single guaranteed-best schedule.
Which objectives can the schedule target?
You can fill an ordinary bracket, stay below an IRMAA tier, maximize lifetime ACA premium tax credits, minimize lifetime tax present value, or maximize real terminal wealth. The proposed schedule is shown alongside a no-conversion, naive-sequencing baseline so the tradeoff is explicit.
Does it run Monte Carlo or recommend trades?
No. The Studio is deterministic and surfaces a Roth conversion and withdrawal schedule with per-year binding-constraint and marginal-cost detail. It does not run stochastic simulations, execute trades, or replace tax, legal, or investment advice.