Withdrawal order
Saving got you here. Spending it back out is a different skill — and the order you tap your accounts quietly decides your lifetime tax bill.
In retirement you'll draw from several accounts that are taxed differently. Pull them in a smart order and the IRS takes less over your lifetime; pull them in a careless order and the difference can be tens of thousands of dollars — from the exact same savings.
The conventional wisdom (and why it exists)
- Taxable/brokerage first — gains are taxed at capital-gains rates, usually the cheapest exit. Spending this down also stops the annual tax drag on dividends.
- Traditional (401k/IRA) second — fill up the low tax brackets in years when you have little other income. Every dollar out now is a dollar that won't be forced out later at possibly higher rates.
- Roth last — its growth is tax-free forever and it has no forced withdrawals. The longer it compounds untouched, the more the tax-free bucket is worth.
This ordering is a good default. It is not always optimal — which is the interesting part.
When the default is wrong
The RMD time bomb: if you strictly spend taxable money first and let a large IRA keep compounding, you may arrive at 73 with a huge pre-tax balance — and required withdrawals then force you into high brackets anyway. The fix is usually a blend: draw (or convert) some traditional money during the low-income years, even while taxable money remains.
The ACA cliff: retire before 65 and you're buying your own health insurance until Medicare. Keep your taxable income under the subsidy threshold and the government pays a large share of the premium; go one dollar over and thousands of dollars of subsidy vanish. Which account you withdraw from directly controls that income — Roth and already-taxed dollars don't count, traditional withdrawals do. Vundii's optimizer has a toggle specifically to protect this cliff.
Example: A 62-year-old couple needs $70K to live on. Drawing all $70K from an IRA counts every dollar as income — likely past the subsidy cliff, costing perhaps $10K+/year in lost health-insurance subsidies. Drawing $35K from brokerage (mostly return of already-taxed principal) and $35K from the IRA can keep "income" low enough to keep the subsidy. Same lifestyle, very different bill.
What Vundii shows you
- The Withdrawal Strategy page: drag your accounts into any order, or let the Decumulation Order Optimizer search sequences and report lifetime taxes for each — with the ACA-cliff protection toggle if you'll retire before 65.
- The Decumulation Analysis page compares three full strategies side by side (traditional-first, taxable-first, your custom order) with a year-by-year tax chart — watch the traditional-first line spike when RMDs hit — and a phase timeline of the recommended sequence ("taxable until 73, then shift").
What to do about it
- Add all accounts with correct types, then open Decumulation Analysis — the strategy gap it shows you is your money on the table.
- Retiring before 65? Turn on ACA-cliff protection in the optimizer before trusting any order.
- Set your chosen order on Withdrawal Strategy, and revisit after any big change (inheritance, house sale, Roth conversion plan).
- Remember the order isn't fixed for life — the optimal sequence usually changes phase around age 73. The phase timeline is the map.
Related terms: withdrawal order · RMD · safe withdrawal rate · bracket creep
Find the order that keeps more of your money yours.
Try it in Vundii →