ACH Settlement Date Calculator
When direct-deposit files must hit the bank to land on payday (1-day / 2-day / same-day ACH).
Written and maintained by Paul Clark, Redmoon Software · Rules last verified · Sources
These calculators are for informational purposes only and do not constitute legal, financial, or professional advice.
How the ACH Settlement Date Calculator works
The ACH Settlement Date Calculator works out when an ACH file submitted on a given day actually settles. Rather than asking for a raw number of days, it asks which settlement class you are using — same-day, next-day or standard two-day — because that is the term the rules and your bank both speak in, and the day count follows from it.
The three classes are genuinely different products with different economics. Standard ACH settles two banking days after submission and is the cheapest. Next-day settles one banking day out. Same-day ACH settles the same banking day, but only for files that clear one of the same-day processing windows and only within the per-transaction limit the network imposes — miss the window and the file falls through to the next available settlement, which is why same-day is best understood as a window rather than a guarantee.
The counting runs in banking days, which excludes weekends and Federal Reserve holidays, so select the United States as the holiday calendar before trusting the result — the tool preselects one from your browser time zone, and a non-US calendar will skip the wrong days on a rule that is entirely about the Fed’s operating schedule. Where this matters most is payroll: a file that settles on the banking day after a holiday weekend lands three or four calendar days after submission, so a payday that looks safely covered on the calendar can be short if the file goes in late. Note also that settlement is not the same as availability to the employee: the receiving bank credits the account on settlement day, but posting times within that day vary by institution.
Worked example
A standard two-day file submitted on Monday, 1 June 2026 settles on Wednesday, 3 June. Switch the class to same-day and, provided the file makes a same-day window, settlement is Monday 1 June itself — but if 1 June is not a banking day the calculator rolls it to the next one rather than pretending same-day means today regardless. The gap between classes widens across a holiday: a standard file submitted the day before a long weekend settles after it, three or four calendar days later, while the same-day version does not.
Frequently asked questions
Is same-day ACH guaranteed to settle today?
No — it settles the same banking day only if the file clears one of the network’s same-day processing windows, and only if the transaction is within the per-transaction limit. A file submitted after the last window of the day, or one that exceeds the limit, falls through to the next available settlement. Confirm your originating bank’s own cut-off times, which are usually earlier than the network windows.
What is a banking day?
A day the Federal Reserve is open for settlement — weekdays excluding Federal Reserve holidays. Weekends never settle, and the Fed observes a slightly different holiday list from some state and commercial calendars, so select the United States calendar in the tool rather than relying on the auto-detected one. Getting this wrong is the most common way an ACH date comes out a day early.
Does settlement mean the employee can spend it?
Settlement is when the receiving institution is credited; when funds appear in the account and become spendable is a matter of that bank’s posting practice, which varies from the early hours of settlement day to the end of it. For payroll, aim to settle the banking day before payday rather than on it if you want funds reliably visible on the morning employees expect them.
What this calculator does not do
A limitation you know about costs far less than one you find after the deadline. These are the specific things this tool cannot work out for you.
- Settlement runs on banking days and on your originating institution’s submission deadlines, which are usually earlier than the network windows.
- Same-day ACH has per-transaction dollar limits and is not available for every entry type.
Where these rules come from
The periods this calculator applies are taken from the primary sources below rather than from secondary summaries. Verify against them before relying on a date that matters.
- Nacha Operating Rules
The settlement classes and processing windows for the ACH network.
- Federal Reserve — FedACH services