Navy Federal Transit Number: What to Enter, and Why Canada Means Something Else

Last verified against primary sources: October 19, 2026. Navy Federal’s ACH Transfers page, Savings FAQs and Wire Transfers page re-crawled this day; Navy Federal forms NFCU 633 (7-26), NFCU 171A (8-21) and NFCU 411 (11-21) downloaded from navyfederal.org this day; Payments Canada glossary, Financial institutions file page and the three branch directories (banks, credit unions/caisses populaires, trust companies, all dated 2026-10-16) downloaded from payments.ca this day; Regulation CC Appendix A (12 CFR Part 229), 31 CFR 210.7(b), 210.8 and the Appendix to 31 CFR Part 321 read at ecfr.gov this day; FS Form 2231 and SF 1199A downloaded this day; IRS Form 8888 (Rev. December 2025) downloaded this day.

Navy Federal has one number, not two: 256074974. If a form asked you for a “transit number” and the form is American, enter 256074974 — Navy Federal’s own current authorization form, NFCU 633 (7-26), labels the field “Account Routing and Transit Number” and prints “Note: Navy Federal’s routing number is 256074974.” The catch is that the same English word means a different object across the border. Payments Canada’s glossary defines a transit number as “a three-digit financial institution number together with a five-digit branch number assigned by that institution” — and every one of the 20,526 branch routing numbers in its current directories begins with 0. US institutions have no institution number and no branch number to give, so a Canadian form asking for one cannot be filled from a Navy Federal account.

The short answer

Test any nine-digit number against both rulebooks

The United States and Canada both publish nine-digit numbers, and they are built differently. The US ninth digit is a check digit computed from the first eight; in Canada the ninth digit is the last digit of the branch number. Enter any nine digits and the tool runs both readings.

Four official names for the same nine digits

Nothing we could find on navyfederal.org publishes a second number called a transit number. What the credit union publishes instead is one number under four different labels, depending on which page you are reading:

So the honest answer to “what is Navy Federal’s transit number” is that the credit union itself uses the phrase, and always attaches it to 256074974. Two details from the same pages are worth keeping straight: the savings page writes the number with dashes (2560-7497-4) while every other page writes it as one unbroken string, and the wire page pairs it with the SWIFT/BIC because a wire is a different rail — see our comparison of the two.

Navy Federal’s own 2026 form spells it out

The clearest statement is not on a marketing page. It is on the form a member signs to move money by ACH, NFCU 633 (7-26), © 2026 Navy Federal. The field is labelled “Account Routing and Transit Number,” and the instruction underneath reads:

“The Routing and Transit Number can be found at the bottom of a check from the receiving financial institution. It is always nine (9) digits long and is always bracketed by the computer symbol that looks like a vertical line followed by two (2) dots. The other two (2) numbers are the account number and the check number.”

And in the same block: “Note: Navy Federal’s routing number is 256074974.” That is Navy Federal telling a member, in writing, that “routing and transit number” is the nine-digit number on the check — and then handing over its own.

The one caution Navy Federal prints on its own forms

Two other Navy Federal forms carry a warning that is easy to miss and useful precisely because the credit union put it there. NFCU 171A (8-21) and NFCU 411 (11-21), the automatic payment authorizations for mortgages and equity loans, label the field “Routing/Transit or ABA Number (9 digits)” and add:

“Please be sure this is an ACH routing/transit number—it may be different than the routing/transit number printed on your checks.”

That field is for an account at another institution, which is why the warning exists: some institutions use one number for paper checks and another for electronic transfers. Treasury’s own direct deposit form says the same thing from the government side — FS Form 2231 instructs you that “[i]f your check or sharedraft includes ‘payable through’ under the bank name, contact the financial institution to help obtain the correct Routing Transit Number for Direct Deposit processing.” We found no Navy Federal statement about whether that caution ever applies to Navy Federal’s own number; the credit union publishes one number for its own accounts.

Where the American “transit number” came from

In the United States the word is a survivor of a numbering plan that predates the nine-digit form. A Federal Reserve Bank of Atlanta publication from the early 1950s explains the fraction printed in the corner of a check this way: “The ‘numerator’ indicates the transit number assigned to a given bank under the numerical transit system adopted by the A.B.A. in 1911. Figures in the ‘denominator’ make up the routing symbol.” In other words, the American transit number was originally a bank’s own number — what is now digits five through eight of the nine-digit string — and the routing symbol was the geographic part. (We use that same source, and the Dallas Fed circular that pairs with it, in our explanation of the fraction on a Navy Federal check.)

The regulation that governs check collection today does not use the word at all. Appendix A to Regulation CC opens: “Each bank is assigned a routing number by an agent of the American Bankers Association. The routing number takes two forms: a fractional form and a nine-digit form,” and goes on to define the first four digits as the “Federal Reserve routing symbol.” The word transit does not appear anywhere in that appendix.

Federal forms, meanwhile, kept the older phrasing. The current FS Form 2231 asks for “ROUTING TRANSIT NUMBER (your financial institution’s 9-digit routing transit number)” with a separate Check Digit box beside it; SF 1199A prints ROUTING NUMBER and CHECK DIGIT as two distinct fields; 31 CFR 210.8 refers to “Routing and Transit Number information” in a notification of change, and 31 CFR 210.7(b) notes that “[a]ll routing numbers issued by a Federal Reserve Bank to an agency require the prior approval of the Service.” The Appendix to 31 CFR Part 321 even gives the Bureau of the Fiscal Service’s own value for the MICR “R/T” field: “The Bureau’s routing/transit number is 000090007.” Note that one — a genuine US government nine-digit number whose first two digits are 00, outside the 01–12 / 21–32 range that IRS Form 8888 says it will accept.

In Canada, Payments Canada defines it differently

Payments Canada operates the Canadian clearing systems and publishes the definitions. Four entries from its glossary:

Two things follow from those four sentences. A Canadian transit number is eight digits, not five — the institution number plus the branch number — and the institution number is assigned by Payments Canada, not chosen by the bank. The directories themselves are described on Payments Canada’s site as providing “routing numbers and addresses for branches of all Canadian financial institutions,” drawn from the Financial institutions file, which “is updated weekly.”

We tested all 20,526 Canadian branch routing numbers

The directories are published as PDFs in three families — banks, credit unions and caisses populaires, and trust companies — each in a numeric and a geographic version. We downloaded the three numeric lists dated 2026-10-16 and parsed every branch row: 15,024 banks, 3,969 credit unions and caisses populaires, 1,533 trust companies.

The practical reading: the eight digits after the leading zero are exactly the “transit number” of the glossary definition, and the nine-digit string is that transit number with a zero in front. Which is another way of saying that a Canadian nine-digit number is not a US routing number wearing a disguise — it is a different object that happens to be the same length.

The ninth digit: check digit or branch digit?

Here is the test that separates the two systems cleanly. In the US, the ninth digit is derived: weighted 3-7-1 over the first eight digits, subtract the remainder from 10, and that is your check digit. Navy Federal’s number passes — 3×2 + 7×5 + 1×6 + 3×0 + 7×7 + 1×4 + 3×9 + 7×7 = 176, and the ninth digit is 4.

Apply the same arithmetic to the Canadian directories and the result is what you would expect from digits that were never calculated:

• 2,101 of 20,526 Canadian branch numbers (10.24%) satisfy the US check digit. If the ninth digit were a computed check digit, the figure would be 100%. At 10.24% it is statistically indistinguishable from the 1-in-10 you get by picking the last digit at random.
• 1,772 eight-digit prefixes carry more than one ninth digit — up to all ten. CIBC branches 00040 through 00049 share the prefix 00100004 and produce 001000040, 001000041, … 001000049. A real check digit would allow exactly one.
• Canada’s own central bank fails it. The Bank of Canada appears in the directory as institution 177 with branch 00000, electronic 017700000 — which does not satisfy the 3-7-1 test.

So the ninth digit in Canada is simply the last digit of the branch number, which is why Payments Canada’s directories can contain ten branches that differ only in that position. Nothing is being validated by arithmetic; the branch number is an identifier, not a checksum.

Why a Canadian number can still satisfy a US form’s stated rule

There is one trap worth naming, because it is the reverse of the intuition. IRS Form 8888 (Rev. December 2025) states its own acceptance rule: “The routing number must be nine digits. The first two digits must be 01 through 12 or 21 through 32.” We applied that rule to all 20,526 Canadian branch numbers:

• 5,744 of them (27.98%) satisfy the IRS prefix rule. Because the electronic number is 0 + institution, any institution numbered 100 or above produces a first-two-digit value in 01–09 — inside the IRS range.
• 591 (2.88%) satisfy the prefix rule and the US check digit, purely by coincidence.
• The nine institutions numbered below 100 — the Big Six plus Laurentian, HSBC Canada and Canadian Western Bank — begin with 00 and fail the IRS rule outright. Royal Bank (003), TD (004), Scotiabank (002), CIBC (010), National Bank (006) and BMO (001) account for 14,480 of the 20,526 rows between them.

A prefix rule is a shape test, not an identity test. Navy Federal’s own 25 sits in the 21–32 band because Regulation CC adds 20 to the first digit to mark a thrift institution, which we unpack in our guide to the first two digits. The general point — that a check digit proves nine digits agree with each other and says nothing about whether the institution exists — is the subject of our separate verification; to confirm that a US number belongs to a real institution you need the Federal Reserve’s own directory, which we walk through here.

If the form you are holding is Canadian

There is no conversion. 256074974 cannot be decomposed into a Canadian institution number and branch number, because it was never built from them — and Payments Canada assigns institution numbers only to institutions in its own system. If you are setting up a payment into or out of a Canadian account, the numbers have to come from that Canadian account’s own cheque or from its bank.

If you are moving money between a Navy Federal account and a Canadian one, Navy Federal’s wire page describes the rails rather than the numbers. For an outgoing international wire the required recipient information is “SWIFT/BIC of receiving financial institution” plus, if applicable, a corresponding or intermediary bank; for a domestic wire it is “Routing number (ABA).” The page also states that “Navy Federal only receives US currency” and that “[w]hile we only handle wire transfers through the Federal Reserve System, we’re able to process international wire transfers through our dedicated correspondent bank.” Fees and limits for the outgoing side are covered in our outgoing wire guide.

What we could not verify

• Navy Federal publishes no page defining “transit number” as a term. Its own site search reports 79 matches for “transit”, but almost all of them are the credit-card rewards category (“3X points on gas and transit”) or the ordinary phrase “in transit” in moving checklists; of the twenty highest-ranked results, only the ACH Transfers page uses it in the banking sense. That engine runs with fuzzy and phonetic matching switched on, so we treat 79 as an order of magnitude, not a count.
• We did not verify how individual Canadian banks label their own fields. Payments Canada’s glossary defines a transit number as institution plus branch; we did not check each bank’s own forms, and we are not asserting what they print.
• We could not explain the 852 non-conforming directory rows (827 marked “(Sub to …)”, 538 with a different institution in the electronic number, 25 with neither marker). Payments Canada states no rule for them in the directory. We report the counts only.
• No source we read defines a mapping between the two systems — neither Payments Canada nor the Federal Reserve publishes a way to convert a US routing number into a Canadian institution and transit pair, or the reverse. If someone tells you one exists, ask where it is published.
• The branch directory carries a legal notice that it is provided “as is” and that reproduction for commercial purposes without permission is prohibited. Our figures are computed from it and our examples are quoted sparingly; the directory itself is the authoritative source and is updated weekly.

Sources: Navy Federal Credit Union — ACH Transfers (services/transfers/ach.html), Savings FAQs (checking-savings/savings/faqs.html), Wire Transfers (services/transfers/wire-transfers.html), Automatic Funds Transfer Authorization Via the Automated Clearing House (ACH) form NFCU 633 (7-26), Mortgage or Fixed Equity Loan Easy Pay Authorization NFCU 171A (8-21), Mortgage or Fixed Equity Loan Budget Easy Pay Authorization NFCU 411 (11-21); Payments Canada — glossary definitions of routing number, transit number, institution number and branch number, Financial institutions file page, and the Banks / Credit Union & Caisse Populaire / Trust Companies Numeric Lists dated 2026-10-16; Federal Reserve Board, Regulation CC Appendix A to Part 229 (12 CFR Part 229); 31 CFR 210.7(b), 210.8 and the Appendix to Part 321; U.S. Department of the Treasury, FS Form 2231; GSA, SF 1199A; IRS, Form 8888 (Rev. December 2025); Federal Reserve Bank of Atlanta, Highway Signs for Checks. All counts and percentages in this page were computed directly from the downloaded directories, not estimated.