The correct spelling is "bank account" — two words, lowercase
Bank account is spelled as two separate words: B-A-N-K (space) A-C-C-O-U-N-T. Both words are lowercase unless they appear at the start of a sentence or in a formal heading. This is the standard spelling used by banks, financial institutions, government agencies, and payment processors.
When you see it capitalized — "Bank Account" — that usually means it is part of a formal document title or a section heading, not a change to how the words themselves are spelled. On statements, online banking platforms, and official correspondence, you will see it written as "bank account" in regular text.
The word "account" itself is sometimes misspelled as "acount" (missing the second 'c'), so double-check that both C's are there: A-C-C-O-U-N-T.
Key Takeaways
- Bank account is two words, not one, and both are lowercase in regular text.
- The word "account" contains two C's: A-C-C-O-U-N-T, a common place where spelling errors happen.
- Capitalization only matters in formal titles or at the start of a sentence.
- Banks and government forms use "bank account" as the standard term for any account you hold at a financial institution.
Related banking terms and how to spell them
If you are writing about bank accounts, you may also need to spell other common banking words correctly. Checking account and savings account are both two words, lowercase. Debit card is two words. Direct deposit is two words. Overdraft is one word.
Account number is two words. Routing number is two words. Wire transfer is two words. ACH transfer (Automated Clearing House) is three letters followed by the word "transfer." When you write out the full name, it is "Automated Clearing House," with each word capitalized because it is a proper noun — the name of a specific system.
Common misspellings to avoid: "acount" instead of "account," "cheking" instead of "checking," "deposite" instead of "deposit," and "tranfer" instead of "transfer."
When to capitalize bank account terms
Capitalize "Bank Account" only when it is part of a formal heading, a document title, or the official name of a product. For example, a bank might call a product "Premium Bank Account" or "Student Bank Account," where the capitalization is part of the product name itself.
In regular sentences and paragraphs, keep it lowercase: "I opened a bank account last month." "Your bank account number is on your statement." "The bank account is linked to your debit card."
If you are quoting from an official document or copying text from a bank's website, use the capitalization exactly as it appears in that source. Otherwise, lowercase is correct.
How bank account appears on official documents
On your bank statement, you will see "Account Number" or "Bank Account Number" at the top, usually capitalized because it is a label. The actual number itself is just digits. In the body of the statement, the text will refer to "your bank account" in lowercase.
Government forms, tax documents, and payment instructions also use "bank account" in lowercase when referring to the account in general, and "Bank Account Number" or "Account Number" when labeling the field where you write the number.
If you are filling out a form and see a field labeled "Bank Account," that is asking for your account number or account details, depending on what the form needs. The capitalization in the label does not change how you spell the term itself.
Spelling bank account terms in different contexts
When you are writing a check, the phrase "bank account" does not appear on the check itself — you write the account number in a specific box. When you are setting up direct deposit for your paycheck, you will provide your bank account number and routing number to your employer.
In emails, texts, or informal writing, "bank account" stays the same: two words, lowercase. In formal letters to a bank or government agency, the same rule applies. The only time capitalization changes is when it is part of a product name or a document heading.
If you are unsure whether you have spelled something correctly, check your own bank statement or the official website of your bank — that is always the most reliable source for how your institution spells its own terms.
Common spelling mistakes and how to avoid them
The most frequent error is writing "acount" with one C. Remember: A-C-C-O-U-N-T. The double C is there because the word comes from the verb "to account," which also has two C's.
Another common mistake is writing "bank account" as one word: "bankaccount." It is always two separate words. Similarly, "checking account" is never "checkingaccount," and "savings account" is never "savingsaccount."
If you are typing quickly or using voice-to-text, these errors slip through easily. A quick proofread — or a copy-paste from your bank statement — catches them before you send the message or submit the form.
Frequently Asked Questions
Is it "bank account" or "Bank Account"?
It is "bank account" in lowercase when you are using it in regular text or sentences. Capitalize it only if it is part of a formal heading, a document title, or the official name of a product. In most writing, lowercase is correct.
How do you spell the word "account"?
Account is spelled A-C-C-O-U-N-T. The most common mistake is spelling it with one C ("acount"), but the correct spelling has two C's. The double C comes from the verb "to account."
What is the difference between "account" and "acount"?
"Account" is the correct spelling. "Acount" is a misspelling and will be flagged by spell-check. Always use the double C: A-C-C-O-U-N-T.
Do I need to capitalize "bank account" on a form?
On most forms, the label "Bank Account Number" or "Account Number" is capitalized because it is a field label, but you do not need to capitalize it when writing about it in regular text. Follow the form's own formatting for labels, and use lowercase in your own writing.
How do you spell "checking account"?
Checking account is spelled as two words: C-H-E-C-K-I-N-G (space) A-C-C-O-U-N-T. A common error is spelling "checking" as "cheking" with one C, but the correct spelling has two C's, just like "account" does.