Interest accrues daily but posts on a schedule you need to know

Most banks calculate interest on your savings account balance every single day, but they add that interest to your account on a fixed schedule — usually monthly, sometimes quarterly. The difference matters: your money is earning interest constantly, but you only see it appear in your account at certain moments. If you move money out before the posting date, you may lose some or all of the interest that accrued since your last deposit.

The schedule depends on your bank and the type of account. A standard savings account at a large national bank typically posts interest on the first day of the next month. Some online banks post monthly as well, while others post quarterly (every three months). A few banks post daily, which is rare but does happen. Your account agreement or the bank's website will state the exact schedule — search for "interest posting" or "compounding frequency" in your account details.

Key Takeaways

  • Interest accrues (builds up) every day based on your current balance, but the bank adds it to your account only on specific dates, usually the first of the month.
  • If you withdraw money before the interest posts, you lose the accrued interest that has not yet been added to your account.
  • Monthly posting is the most common schedule at traditional banks; online banks and credit unions vary, so check your account agreement.
  • The annual percentage yield (APY) your bank advertises already accounts for how often interest compounds, so you do not need to calculate it yourself.

Why the difference between accrual and posting matters

Accrual is the process of interest building up on your balance each day. Posting is when the bank actually adds that interest to your account. If you have $10,000 in a savings account earning 4.5% APY, the bank calculates roughly $1.23 of interest accruing each day ($10,000 × 0.045 ÷ 365). But that $1.23 does not appear in your account until the posting date arrives.

This creates a timing problem. If you deposit $10,000 on the 15th of the month and the bank posts interest on the 1st of the next month, your money will have accrued interest for about 17 days before it posts. But if you withdraw that $10,000 on the 25th — before the posting date — the accrued interest disappears. You earned it, but you never see it because it was not yet posted to your account.

Some banks protect you by posting interest before the withdrawal clears, but most do not. Read your account agreement or call your bank to ask: if I withdraw money before the interest posting date, do I lose the accrued interest? The answer varies by institution.

How to find your bank's posting schedule

Log into your online banking account and look for a section called "Account Details," "Interest Information," or "Disclosures." Most banks list the posting frequency there. You can also search the account agreement PDF — look for "compounding," "posting," or "frequency." If you cannot find it online, call the customer service number on the back of your debit card and ask directly: "How often does interest post to my account?"

Write down the date. If your bank posts on the 1st of each month, you know that any interest accrued since the last posting will appear on that date. If you are planning a large withdrawal, try to do it after the posting date so you do not forfeit accrued interest.

The relationship between APY and posting frequency

The annual percentage yield (APY) your bank advertises already includes the effect of how often interest compounds. If a bank says your savings account earns 4.5% APY, that rate assumes interest is compounded at whatever frequency the bank uses — daily, monthly, or quarterly. You do not need to do any math or adjust the rate based on posting frequency.

This is different from the annual percentage rate (APR), which does not account for compounding. Banks are required to show you the APY so you can compare accounts fairly across different institutions, even if they compound at different intervals. A 4.5% APY at one bank will earn you the same amount over a year as a 4.5% APY at another bank, regardless of whether one posts monthly and the other posts quarterly.

What happens if you close your account before interest posts

If you close a savings account before the interest posting date, you will not receive the accrued interest. Some banks will pay it out anyway as a courtesy, but most will not. If you have accrued interest sitting in an account you plan to close, wait until after the posting date to close it, or contact the bank and ask whether they will pay out accrued interest early.

This is one reason to check your posting schedule before closing an account. If your bank posts on the 1st and you close on the 28th, you are leaving money on the table. Call ahead and ask: can you hold the account open until after the next interest posting, or will you pay accrued interest if I close now?

How accrual works across different account types

Money market accounts and certificates of deposit (CDs) follow the same accrual-and-posting pattern as savings accounts, though the rates and posting schedules differ. A CD might post interest quarterly or at maturity (when the term ends). A money market account might post monthly. High-yield savings accounts, which are offered mostly by online banks, often post monthly as well, though a few post daily.

Checking accounts rarely earn interest, and when they do, the rate is very low. If your checking account does earn interest, the posting schedule will be in your account agreement. The key rule is the same across all account types: accrual happens daily, but posting happens on a schedule set by your bank.

Frequently Asked Questions

If interest accrues daily, why do I only see it once a month?

The bank calculates interest every day and adds it to a running total, but it only transfers that total into your account balance on the posting date. Until it posts, the accrued interest exists in the bank's system but not in your account. Once it posts, it becomes part of your balance and earns interest itself in the next cycle.

Can I lose accrued interest if I move money between my own accounts?

If you transfer money from a savings account to a checking account at the same bank before the interest posts, you will lose the accrued interest on the amount you moved. The interest only applies to money that remains in the savings account until the posting date. Check with your bank about their specific rules.

Do online banks post interest faster than traditional banks?

Not necessarily faster, but sometimes more often. Many online banks post monthly, the same as traditional banks. A few post daily or quarterly. The posting frequency does not affect how much you earn over a year — the APY already accounts for it — but it does affect when you see the money in your account.

What if my bank posts interest on a weekend or holiday?

Banks typically post interest on business days. If the posting date falls on a weekend or holiday, the bank will post on the next business day. This means your interest may appear a day or two later than expected, but you will still receive the full amount owed.

Does switching banks affect accrued interest I have not received yet?

When you close an account, accrued interest that has not posted is usually forfeited. Before you switch banks, wait for the interest posting date or contact your current bank to ask if they will pay accrued interest early. Once you move to a new bank, you cannot recover interest from the old account.