The table's purpose is convergence: it forces every fee onto the leg where it is actually charged, so the $0.007 per-payout gap between the two given prices can only be preserved if your bank's confirmed all-in fees keep FedNow at or below $0.045 and same-day ACH at or above $0.052. If your bank quotes different numbers, the gap — and the switch decision built on it — changes with them.
Evidence: converge on one per-payout delta
To make the per-payout comparison honest, collect three independent artifacts before you quote any figure: the Federal Reserve Financial Services FedNow fee schedule, your own bank's Same-Day ACH origination agreement, and 90 days of payout ledger data from your marketplace platform. The Fed schedule gives you the rail's published price; your bank agreement gives you what you actually pay, which can include origination add-ons; the ledger gives you payout volume so any delta can be multiplied by real transaction counts.
Normalize everything to a single unit — cost per payout. Reject any quote expressed per batch, per month, or as a percentage of transfer value; those structures cannot be converted fairly without assumptions, and a mixed-unit comparison is the most common way this analysis goes wrong. If your bank's agreement prices Same-Day ACH per batch, ask the bank for a written per-item equivalent or compute it yourself from your ledger's actual batch composition — but label the result as your own calculation, not a bank-confirmed figure.
The two headline prices circulating in this analysis — the FedNow figure and the Same-Day ACH figure — are the only given prices in the exercise. Everything else in the table must come from your documents. A blank cell means a check you still have to perform, not a number to estimate or borrow from another bank's schedule.
| Line item | Source | Per-payout cost | Status |
|---|---|---|---|
| FedNow per payout | Given (verify against Fed fee schedule) | $0.045 | Given — confirm with your sponsor bank's pass-through terms |
| Same-Day ACH per payout | Given (verify against your origination agreement) | $0.052 | Given — confirm your bank's written schedule matches |
| Delta (Same-Day ACH minus FedNow) | Computed: $0.052 − $0.045 | $0.007 | Valid only if both given prices survive bank confirmation |
| Your bank's actual Same-Day ACH fee | Origination agreement | (fill from document) | Blank = check to perform |
| Your bank's actual FedNow pass-through | Sponsor bank fee schedule | (fill from document) | Blank = check to perform |
Run the subtraction only on confirmed, same-unit figures. If your bank's confirmed Same-Day ACH fee lands below the given price, or its FedNow pass-through lands above it, the delta shrinks — and if it compresses toward zero, the fee argument for switching disappears on its own. The convergence test is simple: two documents, one unit, one subtraction, no filled-in blanks.
Keep the ledger separate from the fee documents. The ledger's job is volume, not price: it tells you how many payouts would carry the delta each month, which is the multiplier the break-even analysis in the cost section needs. Mixing your transaction history into the price table invites rounding and averaging errors; mixing bank prices into volume analysis invites wishful thinking. Two columns of evidence, one meeting point: a single per-payout delta you can defend line by line.
Options compared: table must name a winner
Before comparing prices, confirm the rail mechanics with your sponsor bank rather than treating network-level descriptions as contract terms. Ask in writing when a FedNow credit is final at posting, whether your bank restricts origination hours, how Same-Day ACH submission cutoffs affect same-day settlement, and which per-transfer, return, and exception fees apply; use those written answers, not marketing summaries, in the $0.045 versus $0.052 comparison.
The comparison should use bank-written settlement finality and cutoff terms, not marketing material; the 12-month total carries fee spend, float, and the full integration cost, because the switch rule requires the 12-month fee-plus-float saving to exceed integration cost. Mark any rail whose written fee schedule does not state the per-payout price and terms as unverified, and rerun the comparison when the schedule arrives.
Apply the winner rule once, on confirmed numbers. The $0.007 gap is $0.084 per payout per year, so 10,000 monthly payouts convert the fee edge into $840 a year (0.007 × 10,000 × 12 = 840). Add the float savings you can document, priced at your cost of funds, and compare that 12-month sum with the full integration cost. If the sum does not exceed the full integration cost inside 12 months, do not switch; same-day ACH remains the baseline even though its per-payout fee is higher.
Two checks keep the table from flattering either side. First, get the integration quote in writing with a stated amortization period, and put only the 12-month share in the total; a one-time build spread over 36 months will make almost any rail look viable. Second, mark any column still resting on a headline placeholder as unverified rather than zero, and rerun the rule when the written schedule arrives.
Costs: fee, float, failure, integration
The headline fee is a trap. For a 2026 marketplace, the only given per-payout prices are $0.045 for FedNow and $0.052 for same-day ACH — a $0.007 gap — but your bank's all-in cost includes three more line items than that number. Before any switch decision, write the full formula down: all-in monthly cost = (monthly payouts × per-payout fee) + (days of delayed seller access × daily float cost) + (failure and recovery cost) + (integration amortization). If your bank's written fee schedule cannot fill in every term with a confirmed figure, you are comparing half a bill against a whole one.
Float is where instant rails earn or lose their case. Same-day ACH settles in batches with cutoff windows, so funds held back from sellers between origination and settlement carry a financing cost; FedNow credits instantly, collapsing that delay. Price each day of delayed access at your cost of capital or treasury yield, multiplied by the average payout balance held. If your payout balances are small, this term shrinks toward zero and the $0.007 fee gap dominates; if you hold large balances across cutoff windows, float savings can dwarf the per-payout delta entirely.
Failure and recovery costs belong on the page, not in a footnote. Same-day ACH returns and reversals process through Nacha's return framework; instant transfers can bounce against closed accounts or require manual reconciliation. Pull your own ledger: count failed payouts per month, multiply by your measured cost of handling each one (support time, re-issue labor, seller churn risk), and enter that as a line item for each rail. Do not assume instant means fewer failures — measure it, because the two rails fail differently.
Integration amortization is the term most teams forget until it's too late. Bank connectivity work, testing, reconciliation changes, and seller-education updates all cost money up front, and that cost must be divided across the months you expect the switch to pay back. Set a hard rule: if the 12-month fee-plus-float saving does not exceed the integration cost, do not switch. The break-even test is simple arithmetic:
| Decision input | How to compute it | Rule |
|---|---|---|
| Per-payout fee delta | Your confirmed same-day ACH fee minus your confirmed FedNow fee | Must be positive on written bank schedules |
| Break-even payouts | Integration cost ÷ per-payout fee delta | Monthly payouts must exceed this to switch on fee alone |
| 12-month payback | (Fee delta × payouts × 12) + (float days × daily float cost × 12) | Must exceed integration cost or the switch fails |
Work the break-even in both directions. Divide your quoted integration cost by the fee delta to get the payout threshold, then check your monthly payout volume against it — if you fall below, no fee argument exists and only float savings can carry the case. And revisit the whole table whenever your bank reissues its fee schedule: a lower headline fee that arrives bundled with higher exception, return, or monthly access charges raises the all-in total even as the per-payout number falls. The rule is simple — sign nothing until every term of the formula is a confirmed number from your bank, not a marketing rate card.
What the evidence does not establish
Before you take any switch decision forward, be honest about what this analysis has not proven. The figures discussed so far are prompt-level reference prices, not your contract prices. Nothing here establishes what your own bank charges for same-day ACH origination or what it passes through for FedNow access. Request written fee schedules and two recent sample invoices for both rails before treating $0.045 or $0.052 as anything more than a benchmark to test against.
The second unverified area is rail behavior at the edges. The evidence covered so far defines the rails in normal operation; it does not establish your bank's specific FedNow finality terms, per-transfer limits, or return-handling procedures. If a term is missing from the available sources documents or your bank paperwork, write "verify with sponsor bank" into your internal guide. Do not fill the gap with a plausible number — a wrong assumption in a payout rule costs more than a blank cell.
Make the unknowns concrete with an edge-case table your treasury team completes from bank documents:
| Edge case | Rule breaks if | Rule still wins if |
|---|---|---|
| Weekend payout | Verify with sponsor bank: whether your FedNow window and Same-Day ACH cutoff handling match, and whether weekend processing carries a surcharge | Both rails confirm 24/7 FedNow availability at your contracted price with no weekend premium, and weekend volume is material to sellers |
| Returned payout | Return handling fees on either rail erase the per-payout saving at your observed return rate | Return fees are equal or negligible on both rails, so the fee delta survives returns |
| High-value payout | FedNow per-transfer limits force splitting, multiplying the per-payout fee on large seller disbursements | Your contracted FedNow limit covers your typical and maximum payout sizes in a single credit |
Work through each row with your sponsor bank in writing. For the weekend row, ask specifically how Nacha batch cutoff windows interact with your cutoff for same-day ACH submissions on Fridays. For the return row, get the exact return fee per rail and multiply by your last 90 days of return events. For the high-value row, get the FedNow limit in writing and compare it against your largest single payout in the ledger data.
Only when every cell resolves in favor of the instant rail — and the 12-month fee-plus-float saving still exceeds the integration cost using your bank-confirmed numbers — does the switch recommendation hold. If any cell says "verify with sponsor bank" at decision time, the honest answer is to delay the migration, not to guess.
2,000 payouts, $14 delta
Here is the arithmetic that kills the "$0.007 is the decision" myth. Take a marketplace running 2,000 payouts per month. At the given prices, FedNow at $0.045 per payout costs $90.00 per month, and same-day ACH at $0.052 per payout costs $104.00 per month. The fee delta is $14.00 per month, or $168.00 per year. That is the entire prize on the table. If your integration quote is anything above a few hundred dollars, the headline gap alone cannot pay for the switch.
Now run the float check. If instant settlement frees up one day of float on $100,000 of daily payouts, and your cash earns 5% — a rate in line with the high-yield savings yields CNBC reported topping out around 5.0% APY in late 2026 — one day of float is worth about $13.70 ($100,000 × 5% ÷ 365). Compare that to the $14.00 monthly fee saving: float and fees are the same order of magnitude, so you must count both, and your own bank-confirmed rates may move either number.
Record your bank-confirmed FedNow fee, same-day ACH fee, monthly payout volume, documented float and failure savings, and full integration cost in one comparison. The decision rule is to switch only if the 12-month fee-plus-float saving exceeds the full integration cost; otherwise keep the current rail.
The rule: switch only when Line 9 is 12 months or fewer, using bank-confirmed figures on Lines 2 and 3. If your bank's actual Same-Day ACH price sits below $0.052, the delta shrinks and the case collapses — which is why the worksheet, not the headline gap, is the decision artifact.
Worked Example: Run the Numbers
To test whether the $0.007 gap between $0.045 FedNow and $0.052 same-day ACH pays for itself, use your own written bank schedules, payout ledger, documented float value, and full integration quote. Multiply the confirmed per-payout fee gap by monthly payout volume, add documented float and failure savings, and compare the 12-month total with the full integration cost. The arithmetic carries over; the figures must come from your documents, not from an illustrative volume or quote.
Step one is the per-payout fee gap: $0.052 − $0.045 = $0.007. Multiply by volume and then by twelve: $0.007 × 200,000 = $1,400 a month, or $16,800 a year. Step two is float. At 200,000 payouts a month, about 6,667 payouts are in flight per day (200,000 ÷ 30), so one extra day of settlement delay holds roughly $400,000 of seller money (6,667 × $60). Priced at 5.0%, that is $20,000 a year — larger than the fee gap, which is the number most business cases leave out.
The illustration produces $36,800 a year, about $3,067 a month, against a $25,000 one-time build — a payback of roughly 8.2 months, inside the 12-month test. The break-even trigger is explicit: an integration quote above $36,800 pushes payback past twelve months and flips this example to staying on ACH. Book failure and exception savings as unbooked upside rather than as part of the base case; counting them is how a team talks itself past the 12-month rule.
Two checks decide whether the example survives contact with reality. Get both per-payout prices in writing from the bank that originates for you, and if the FedNow line reads above $0.045 or the same-day ACH line reads below $0.052, rerun the multiplication before signing. Then size the float line from your own ledger and confirm the receiving banks on your highest-volume payout routes accept instant credits — a payout that falls back to the batch rail earns none of that $0.007 for the cycle.
Decision rules for the 2026 switch
Everything before this point established the rails, the price evidence, and the cost formula. This section does one thing: it turns that groundwork into five if/then rules you can run against your own bank paperwork before committing to a switch in 2026.
Rule one: if your bank-confirmed fee schedule shows FedNow at or below $0.045 per payout and Same-Day ACH at or above $0.052 per payout, then run the 12-month break-even before you switch. The headline gap is only $0.007 per payout, so the decision lives or dies on your volume and your integration bill, not on the headline delta itself.
Rule two: if your monthly fee saving multiplied by twelve is less than your integration cost, keep Same-Day ACH and take the renegotiation path instead. Ask your bank to match the FedNow per-payout price or waive origination fees on your Same-Day ACH batch volume. Switching rails to chase a fee your bank would waive is the most expensive way to save the least.
Rule three: if a one-day payout delay costs you more than the monthly fee saving — measured in seller churn, support tickets, or advance-payment requests — then prioritize instant finality even at the higher per-payout fee. Instant settlement is a retention product, not just a payments product, and the fee comparison alone cannot capture that. Price the churn before you price the rail.
Rule four: if float savings (fees you avoid on working capital held against pending settlement) plus failure-retry savings push your total 12-month benefit past integration cost, switch — and get that math in writing from your bank, not from a pitch deck. Rule five: if the bank-confirmed all-in schedule shows FedNow above $0.045 or Same-Day ACH below $0.052, stop. The canonical rule no longer applies to your account, and no amount of market-level argument changes your contract.
| Condition | Then |
|---|---|
| FedNow ≤ $0.045 and Same-Day ACH ≥ $0.052 (bank-confirmed) | Run the 12-month break-even before switching |
| (Monthly fee saving × 12) < integration cost | Keep Same-Day ACH; renegotiate fees instead |
| One-day delay cost > monthly fee saving | Prioritize instant finality even at the higher fee |
| Float + failure savings push 12-month benefit past integration cost | Switch, with bank-confirmed math in writing |
| Bank-confirmed prices violate the $0.045/$0.052 thresholds | Stop — the rule does not apply to your account |
Run all five rules against two artifacts: your executed bank fee schedule and your own payout ledger. If any one of them fails, the switch is not justified for your marketplace in 2026, regardless of what the per-payout delta suggests at the industry level.
What to do next
| Step | Action | Why it matters |
|---|---|---|
| 1 | Request written fee schedules from your bank for both FedNow and same-day ACH payouts, and confirm the all-in per-payout prices preserve the headline gap. | Both thresholds must hold — FedNow at or below $0.045 and same-day ACH at or above $0.052. If either fails, the $0.007 gap is not confirmed for your marketplace. |
| 2 | Check whether the bank-confirmed all-in fees include any per-payout or monthly charges beyond the headline rate. | Bank-confirmed all-in fees plus float is the test — headline pricing alone does not justify a 2026 switch. |
| 3 | Model your 12-month fee-plus-float saving using your actual payout volume and the confirmed per-payout prices. | The thesis requires savings to exceed integration cost, not merely equal it, for the switch to amortize within 12 months. |
| 4 | Obtain a written integration cost estimate for connecting to FedNow and compare it against the 12-month saving figure from Step 3. | If the saving does not exceed the integration cost, the switch never amortizes within the 12-month window. |
| 5 | Apply the canonical decision rule: switch only if both schedule thresholds hold AND the 12-month fee-plus-float saving exceeds integration cost. | Both conditions must be satisfied together; a partial pass is a keep decision. |
| 6 | If either condition fails, keep same-day ACH and diarize a re-check for when the bank contract changes. | Same-day ACH remains the default until the contract changes — the decision rule expires with the fee schedule, not with the calendar. |
Frequently Asked Questions
What three documents should I gather before quoting a per-payout fee comparison?
Collect the Federal Reserve Financial Services FedNow fee schedule, your own bank's Same-Day ACH origination agreement, and 90 days of payout ledger data from your marketplace platform.
Why can't I just use my bank's quoted Same-Day ACH price if it's charged per batch?
If your bank's agreement prices Same-Day ACH per batch, you must ask the bank for a written per-item equivalent or compute it yourself from your ledger's actual batches, because mixed-unit comparisons are the most common way this analysis goes wrong.
What fee quote structures should I reject when comparing rails?
Reject any quote expressed per batch, per month, or as a percentage of transfer value, since those structures cannot be converted fairly without assumptions.
What does my bank's agreement tell me that the Fed's published schedule doesn't?
Your bank agreement gives you what you actually pay, which can include origination add-ons on top of the rail's published price.
Why do I need 90 days of payout ledger data for this comparison?
The ledger gives you payout volume so any per-payout delta can be multiplied by real transaction counts.
What happens to the switch decision if my bank's confirmed fees differ from the published prices?
The per-payout gap — and the switch decision built on it — changes with your bank's confirmed all-in fees, since the comparison only holds if FedNow stays at or below its published price and same-day ACH at or above its published price.
Quick answers
| What per-payout gap must be preserved between the two rails for the switch decision to hold? | The per-payout gap between the two given prices must be preserved, with FedNow at or below the lower confirmed all-in fee and same-day ACH at or above the higher one. |
| What three artifacts should you collect before quoting any per-payout figure? | The Federal Reserve Financial Services FedNow fee schedule, your own bank's Same-Day ACH origination agreement, and 90 days of payout ledger data from your marketplace platform. |
| What single unit should all fee quotes be normalized to? | Everything should be normalized to cost per payout. |
| What kinds of quote structures should be rejected? | Any quote expressed per batch, per month, or as a percentage of transfer value, because those structures cannot be converted fairly without assumptions. |
| What should you do if your bank's agreement prices Same-Day ACH per batch? | Ask the bank for a written per-item equivalent or compute it yourself from your ledger's actual batches. |
Also worth reading: FedNow's $0.045 Fee Cuts Payroll Break-Even for EWA in 2026: FedNow's $0.045 Fee Cuts Payroll · 2026 FedNow Fee: Small Merchants' Real-Time Switch at $0.045: 2026 FedNow Fee: Small Merchants' · instant payment fees for merchants: FedNow $0.045 vs card networks in 2026: instant payment fees for merchants: