Fat Cat Card: How to Plan ATM Cash Around KAST Limits

The $500 cap on a KAST ATM withdrawal includes the fee. That one line, on KAST’s limits page, is why people who key in $500 at the machine get declined and then wonder whether the card is broken. It is not. The maths just has to be done before you reach the ATM.

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This post works through a real cash need, $2,400 over a 3-day trip, against the limits and fees KAST publishes as of October 30, 2026. It then compares the ATM route with paying by card and with a bank payout, because for most of that $2,400 the ATM is the wrong tool.

In This Calculation

• What are the KAST ATM limits and fees right now?
• How much cash can one KAST withdrawal actually give you?
• How do you schedule $2,400 around the 24-hour cap?
• Why do small withdrawals cost so much more?
• Is the ATM cheaper than paying by card or a bank payout?
• The Rolling Window and Other Fine Print
• Tips
• Warnings
• FAQ

What are the KAST ATM limits and fees right now?

According to KAST’s fee and conditions page, updated October 30, 2026, a KAST card ATM withdrawal costs a $3 flat fee plus 2% of the amount, and the limit is up to $500 per withdrawal with a maximum of 3 withdrawals or $1,500 per 24-hour period (concierge.kast.xyz).

Item	KAST figure	Note
ATM fee, USD withdrawal	$3 + 2% of the amount	Charged by KAST; the ATM owner may add its own
ATM fee, non-USD withdrawal	$3 + 2%, plus the foreign-exchange fee	FX fee is 0.5% to 1.75% depending on country and program
Per-withdrawal cap	$500, including fees	From the separate limits article
Frequency cap	3 withdrawals per rolling 24 hours	Not a calendar day
Amount cap	$1,500 per rolling 24 hours	Effectively 3 × $500
Card purchase limit	None fixed; balance-based	Large purchases may get a compliance check
Raise the ATM cap in the app?	No	Concierge can review a request

The limits article, last updated October 17, 2026, is the one that spells out the “including fees” part and the rolling window, and it also says a request above the cap is simply declined, with the advice to try a smaller amount or wait for the window to reset (concierge.kast.xyz).

When I checked the two pages side by side, I noticed that the fee page says “up to $500 per withdrawal” without mentioning fees, while the limits page says “$500 maximum per withdrawal, including fees”. The stricter reading is the safe one, and it is the one the calculation below uses.

How much cash can one KAST withdrawal actually give you?

If the $500 KAST cap includes the $3 flat fee and the 2% charge, the largest cash amount a single withdrawal can deliver is $487, because $487 plus $3 plus 2% of $487 ($9.74) comes to $499.74.

The formula: cash × 1.02 + $3 ≤ $500, so cash ≤ $497 ÷ 1.02 = $487.25. ATMs dispense in notes, so in practice that means $480 in the US (twenties) and the local equivalent of about $480 abroad, before the FX fee eats a little more of the cap.

Most people skip this and key in $500.

A $500 request becomes $500 + $3 + $10 = $513 against the card, which is over the cap, and the limits page says anything over the cap does not process. KAST’s fee page lists a $0.50 declined-transaction fee only for declines caused by an insufficient balance; a limit refusal is a different case and the page lists no fee for it. It still wastes time at a machine that may charge its own fee per attempt.

How do you schedule $2,400 around the 24-hour cap?

Taking out $2,400 on a KAST card means 5 withdrawals because the maximum is about $487 of cash each, and with 3 withdrawals allowed per rolling 24 hours that is 3 on the first day and 2 on the second, for a total KAST fee of about $63.

Withdrawal	Cash	KAST fee ($3 + 2%)	Charged to card	Running cash
Day 1, #1	$487	$12.74	$499.74	$487
Day 1, #2	$487	$12.74	$499.74	$974
Day 1, #3	$487	$12.74	$499.74	$1,461
Day 2, #4 (24h after #1)	$487	$12.74	$499.74	$1,948
Day 2, #5	$452	$12.04	$464.04	$2,400
Total	$2,400	$63.00	$2,463.00

That is 2.63% of the cash, and it assumes a USD ATM with no operator fee. Abroad, add the KAST FX fee. At the top of the published range, 1.75% on $2,400 is another $42, taking the trip to about $105, or 4.4%. Operator fees on top of that are whatever the machine shows on screen, and KAST’s page says plainly that individual ATM operators may apply their own.

Here’s where people get tripped up: the two-day schedule only works if withdrawal #4 happens a full 24 hours after withdrawal #1. Arrive at the airport, pull three times in an hour, and the next slot opens the same hour tomorrow, not at midnight.

Why do small withdrawals cost so much more?

A $100 ATM withdrawal on a KAST card costs $5, which is 5% of the cash, while a $487 withdrawal costs $12.74, or 2.6%, because the $3 flat fee is the same on both and only the 2% part scales.

Cash per withdrawal	KAST fee	Fee as % of cash	Withdrawals for $2,400	Days needed (3 per 24h)	Total KAST fee
$100	$5.00	5.0%	24	8	$120.00
$200	$7.00	3.5%	12	4	$84.00
$300	$9.00	3.0%	8	3	$72.00
$400	$11.00	2.75%	6	2	$66.00
$487	$12.74	2.6%	5	2	$63.00

The frequency cap punishes small withdrawals twice. Pulling $100 at a time does not just cost almost double in fees; it also takes 8 days to reach $2,400, because you only get 3 attempts per rolling day no matter how small they are. If you need a lot of cash, fill each withdrawal.

If you only need a little cash, the flat fee argues the other way. Take one $200 withdrawal for taxis and tips rather than four $50 ones; the difference is $7 against $16.

Is the ATM cheaper than paying by card or a bank payout?

For a $2,400 spend, KAST’s published fees make the ATM the most expensive route at about $63 in USD, while paying with the card costs $0 in USD and earns 1.5% cashback on the first $2,000 of the month, and a payout to a US bank by ACH costs $1 plus 0.08%, about $2.92.

Route for $2,400	KAST fee	Cashback	Net cost	Where the number comes from
ATM, USD, 5 withdrawals	$63.00	None on ATM withdrawals	$63.00	$3 + 2% per withdrawal
ATM, non-USD at 1.75% FX	$63.00 + $42.00	None	$105.00	Adds the FX fee range’s top end
Card purchases, USD	$0	$30 on the first $2,000 at 1.5%	−$30 (you are paid)	Standard tier cashback cap $2,000/month
Card purchases, non-USD at 1.75% FX	$42.00	$30	$12.00	FX fee minus cashback
Bank payout, USD ACH	$1 + 0.08% = $2.92	None	$2.92	1 to 3 business days
Bank payout, EUR via SEPA	1% = $24.00	None	$24.00	No fixed fee on the SEPA rail
Bank payout, KRW	$2 + 1% = $26.00	None	$26.00	Minimum 20,000 KRW, almost instant

When I compared the rows, the card-purchase line is the one that changes behaviour. A flat 1.5% on $2,400 would be $36, but the Standard tier caps eligible spend at $2,000 a month, so the realistic figure is $30 on the first $2,000 and nothing on the last $400, and only if the month’s cap has not already been used. Either way it is on the opposite side of the ledger from the $63.

The bank rows assume you have an account in that currency. A traveller usually does not, which is why the ATM survives at all. The practical split for a trip is: card for anything with a terminal, one or two full-size withdrawals for the cash-only places, and a bank payout for any large sum you can arrange a day ahead. The earlier post on Fat Cat Card: How to Compare Card Spend With a Bank Payout has the payout fee table for every currency KAST lists.

The Rolling Window and Other Fine Print

KAST’s limits page says the ATM caps run on a rolling 24-hour cycle, including weekends and public holidays, and that the $500 per-withdrawal cap cannot be raised in the app, only reviewed by KAST Concierge on request.

Three details from the page that change a plan:

• Operator fees are separate. KAST’s $3 + 2% is what KAST charges. The ATM’s own surcharge is set by its owner and is not capped by KAST, so a $3.50 operator fee on a $487 withdrawal lifts the real cost from 2.6% to about 3.3%.
• Declines above the cap are automatic. There is no partial approval. If $487 is one note over what the cap allows after the FX fee, the whole request fails, and the page suggests retrying smaller.
• Custom limits are yours, not KAST’s. The app lets you set your own caps on card transactions, bank transfers and on-chain sends, with an email OTP and a selfie check. Those can only tighten the ATM rule, never loosen it.

One more thing to plan for. KAST shows the applicable FX rate and fee in the app before you confirm a non-USD card payment, but at an ATM you see the machine’s screen, not KAST’s. If the machine offers to convert to USD for you, that is dynamic currency conversion, and the post on Fat Cat Card: How to Pay a Foreign Online Store explains why declining it is usually cheaper.

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Tips

• Key in $480, not $500, at a US ATM. It clears the cap with the fee included and dispenses in twenties.
• Note the time of your first withdrawal. Your fourth one is possible 24 hours after it, not the next morning.
• Put the big cash need on a bank payout a day ahead where you have an account in that currency. ACH at $2.92 against the ATM’s $63 is not a close call.
• If you need cash in two currencies on one trip, take the USD withdrawals first; they avoid the FX fee and use the same 3-per-day allowance.

Warnings

• Figures are KAST’s published fees and limits as of October 30, 2026. KAST’s page says they can change at any time and that the app’s quoted fee at confirmation is what applies.
• The FX fee range of 0.5% to 1.75% depends on your residence, the country you are in, and the card program. The calculations here use the top of the range; your app may show less.
• Cashback is subject to monthly caps, eligibility and region, and KAST states it is not a guaranteed return. The $30 figure assumes an unused Standard-tier cap.
• Stablecoin balances carry their own issuer and platform risk, and a card balance is not a bank deposit. Keep only the trip money on the card.

FAQ

Can I withdraw $1,500 in one go if I have the balance?

No. The per-withdrawal cap is $500 including fees, so $1,500 takes three separate withdrawals of about $487 each, and that uses the whole 24-hour allowance. The balance in the account does not change the cap.

Do the 3 withdrawals reset at midnight?

No. KAST describes the limit as a rolling 24-hour period that applies on weekends and holidays too. Count 24 hours from each withdrawal to know when that slot frees up, rather than waiting for a new calendar day.

Does a KAST ATM withdrawal earn cashback?

KAST lists cashback on eligible card spending, and the fee page does not list ATM withdrawals as eligible. Plan on the $3 plus 2% being the full cost with nothing coming back, which is one more reason to put spending on the card rather than taking cash.

Sources

• KAST: What Are the Fees and Conditions for KAST Cards and Accounts? (updated October 30, 2026)
• KAST: What Are the Daily Spending and ATM Withdrawal Limits on My KAST Card? (updated October 17, 2026)
• Fat Cat Card: USDT card comparison

Written by Jordan Lee, editor. Fees and limits are KAST’s published figures as of October 30, 2026; the $2,400 scenario and the 1.75% FX assumption are worked examples, not quotes. Not financial advice.