Most after-tax interest
tieWorth about $9 a year once tax and the cost of moving are counted.
SwitchWize decision guide
Is it worth moving from Ally Bank to the Wealthfront Cash Account?
Both of these are good accounts and the gap between them is usually small. That makes this a different question from most comparisons: not which is better, but whether the difference clears the cost of an afternoon spent moving money. On a typical balance the answer in year one is often no, even though the Wealthfront rate is higher.
What you can expect
- No login required
- No credit pull
- Assumptions shown
- Sources included
Quick answer
Work out the gain in dollars on your own balance, subtract what the move costs you in time, and compare it against the smallest gain you would genuinely bother for. On many balances that arithmetic says stay where you are, and that is a real answer rather than a failure to decide.
If ally
Worth staying for if the gap on your balance is small, you use savings buckets, or your balance sits comfortably inside one bank's insurance limit.
If wealthfront
Worth moving for on larger balances, where the rate difference compounds into real money and the higher sweep insurance ceiling starts to matter.
Key number to watch
At $100 of effort, the rate advantage takes about 401 days to repay it. You have entered a 365-day horizon.
Test your situation
See your result in dollars
Change any number below to match your situation. No login is required, and your entries stay in this browser.
$
The rate gap is a percentage, so the balance decides whether it amounts to anything.
How long the money stays put
A one-off switching cost is repaid over time, so a short stay may never recover it.
$
Your own bar. Below it the guide will tell you to stay put rather than name a winner.
%
Interest from both is taxable, so the real gap is smaller than the APYs suggest.
Your answer so far
Moving would gain about $9 a year, below the $75 you said would make it worth doing. Ally is close enough; staying put is reasonable.
See the full breakdownMoving would gain about $9 a year, below the $75 you said would make it worth doing. Ally is close enough; staying put is reasonable.
Stay with Ally Bank
$912
after-tax interest over 365 days
Move to the Wealthfront Cash Account
$903
after-tax interest over 365 days
-$9 vs. baseline
Try a scenario
What could change this
At $100 of effort, the rate advantage takes about 401 days to repay it. You have entered a 365-day horizon.
How certain: moderate
On $40,000 the switch is worth about $9 a year after tax and after the cost of moving.
How certain: moderate
What matters most
Features beyond the rate
dependsAlly offers savings buckets and a long-standing app; Wealthfront offers a higher sweep insurance ceiling. None of these is priced in the dollars above.
Doing nothing
AllyStaying put costs nothing and takes no time. It is the right answer more often than comparison pages admit.
Side-by-side comparison
What kind of account it is
- Ally
- A bank account, deposits held at Ally
- Wealthfront
- A brokerage cash account swept to partner banks
Typical rate position
Both move often, and the ordering has changed before.
- Ally
- Competitive
- Wealthfront
- Usually a little higher
FDIC insurance
- Ally
- Standard limit at one bank
- Wealthfront
- Higher ceiling, spread across partner banks
Organising tools
Genuinely useful, and not something this guide prices.
- Ally
- Savings buckets
- Wealthfront
- Categories, without the same bucket model
Cost of moving
- Ally
- None, you are already there
- Wealthfront
- An afternoon of transfers and updates, once
What could go wrong
Ally Bank Online Savings
- What needs to work
- The rate stays close enough that the gap keeps failing your own threshold.
- Common problem
- Never revisiting it, and leaving a widening gap unexamined for years.
- What it could cost
- The compounding difference on a large balance over a long period.
- How to prepare
- Fully reversible. Set a reminder to re-check rather than deciding once and forgetting.
Wealthfront Cash Account
- What needs to work
- You leave the money long enough to recover what the move cost you.
- Common problem
- Moving for a small gap, then moving again when the ordering flips, paying the cost twice.
- What it could cost
- Repeated switching costs that exceed everything the rate chase earned.
- How to prepare
- Reversible, but each reversal costs another afternoon.
A simple backup plan
Set a threshold once, then stop thinking about it
Rate chasing costs more time than it returns for most balances. A rule removes the decision.
- 1Work out what the gap is worth on your actual balance, after tax.
- 2Decide the smallest yearly gain that would make you move, and write it down.
- 3Move only when the gap clears that number, not when it merely exists.
- 4Re-check once or twice a year rather than continuously.
Educational illustration only. The right amount depends on your needs and timing.
What to do next
Question 1
Is the yearly gain bigger than your own threshold?
Yes: Moving is worth the afternoon.
No: Stay where you are and re-check in six months.
Question 2
Will the money stay put long enough to repay the cost of moving?
Yes: Good. The calculator shows the day that happens.
No: Moving loses you money even though the rate is higher.
Question 3
Is your balance above one bank's insurance limit?
Yes: The higher sweep ceiling is worth more than the rate gap.
No: Insurance is not the deciding factor here.
Plain-text decision tree. Is the yearly gain bigger than your own threshold? If yes, Moving is worth the afternoon. If no, Stay where you are and re-check in six months. Will the money stay put long enough to repay the cost of moving? If yes, Good. The calculator shows the day that happens. If no, Moving loses you money even though the rate is higher. Is your balance above one bank's insurance limit? If yes, The higher sweep ceiling is worth more than the rate gap. If no, Insurance is not the deciding factor here.
When to check again
- Either provider changes its rate, which happens without notice.
- Your balance grows enough that the same percentage gap becomes real money.
- You open an account at a bank that turns out to be a sweep partner.
- Six months pass without you checking.
Methodology
Interest is earned daily on the balance you enter, at each provider's currently reported rate, then taxed at your marginal rate. Where dated rate periods are supplied, each earns only across its own days rather than being averaged over the horizon. The cost of moving is charged once, and the guide reports the day the rate advantage repays it.
Rates come from our own rate observations for each institution and carry an expiry. If either is older than that expiry, the guide refuses to recommend a move rather than acting on a number we can no longer stand behind.
- • Interest is simple rather than compounded. Over these horizons the difference is smaller than the precision either provider publishes its rate to.
- • Savings buckets, app quality and customer service are not priced. They are real, and converting a preference into dollars would be an opinion presented as arithmetic.
- • FDIC insurance maxima assume you hold no deposits at the sweep programme's partner banks.
- • Rates on both sides can change at any time, and the ordering between these two has flipped before.
Rates re-checked on every page build; the guide is reviewed monthly. Editorial conclusions do not depend on affiliate availability.
Sources
Ally Bank Online SavingsChecked August 15, 2026 · high confidence
Rate and account terms, including transaction policy.
Wealthfront Cash AccountChecked August 15, 2026 · high confidence
Rate and the partner-bank sweep programme.
FDIC: deposit insurance coverageChecked August 15, 2026 · high confidence
Per-depositor, per-bank limits.
Frequently asked questions
Does Wealthfront pay more than Ally?
Usually a little, though both move and the ordering has flipped before. The more useful question is what that gap is worth on your balance after tax, which is often less than people expect, and whether it clears the cost of moving.
Is it worth switching banks for a higher APY?
It depends entirely on the balance and the size of the gap. On a typical balance a small rate advantage can take more than a year to repay the afternoon spent moving. The calculator above shows the exact day it does.
How long does it take for a switch to pay for itself?
The guide reports it as a number of days, worked out from the after-tax rate advantage against whatever you told it the move costs you in time. If that day falls beyond your horizon, moving loses money even though the rate is higher.
Is the Wealthfront Cash Account FDIC insured?
It is a brokerage account that sweeps deposits to partner banks where FDIC insurance applies, which is what lets it advertise a ceiling well above one bank's limit. That figure assumes you hold nothing at those partner banks already.
What about Ally savings buckets?
They are a genuinely useful organising tool and this guide deliberately assigns them no dollar value. Only you can say what they are worth, and pretending otherwise would smuggle an opinion into the arithmetic.
Should I keep both accounts?
Plenty of people do. The everyday reserve where the organising tools are, the larger balance where the rate and the insurance ceiling are. There is no requirement to pick one.
How often should I re-check?
Once or twice a year is plenty. Continuous rate chasing costs more time than it returns on most balances, which is why setting a threshold once and moving only when it is cleared works better than watching.