How much does $10,000 earn at 4.5% APY with daily compounding for 5 years?

$10,000 at a fixed 4.5% effective annual yield grows to $12,462 over 5 years, earning $2,462. Because APY already reflects compounding, its equivalent daily rate reproduces 4.5% APY rather than increasing it again.

For effective APY a = 0.0450, the equivalent daily rate is d = (1 + a)^(1/365) − 1 = 0.00012060. Then A = P × (1 + d)^(365 × t) = P × (1 + a)^t. For P = $10,000 and t = 5, the projected balance is $12,462.

Is 4.5% APY realistic in 2026?

Compare 4.5% with the current provider APY and account terms. A HYSA rate is variable, while a CD rate generally applies for its stated term; review the live disclosure before committing cash.

Does daily compounding actually matter vs monthly?

This scenario starts with a quoted APY, which already reflects the account rate and compounding frequency. Converting it to an equivalent daily rate preserves the same annual yield; it does not add a second compounding uplift. To compare frequencies, start with the same nominal APR and calculate the effective APY for each frequency.

Daily compound scenario · Verified 2026-10-12

$10,000 at 4.5% APY daily compound for 5 years

Grows to $12,462. You earn $2,462 in interest at an effective APY of 4.5%.

Final balance

$12,462

Interest earned

$2,462

Effective APY

4.5%

Quick context

Illustrative mid-term HYSA scenario at a stated 4.5% APY.

How this number was calculated

The input is an effective annual percentage yield (APY). The equivalent daily rate preserves that annual yield over 365 periods:

A = P × (1 + APY)^t

where:
  P = $10,000          (principal)
  APY = 0.0450          (effective annual yield as decimal)
  n = 365                  (compounding periods per year — daily)
  t = 5                   (years)

Equivalent daily rate d = (1 + APY)^(1/365) − 1 = 0.00012060

Final balance = $10,000 × (1 + 0.00012060)^1825
              = $12,462

Interest earned = $12,462 − $10,000 = $2,462
Effective APY = (1 + 0.00012060)^365 − 1 = 4.5%

The CFPB defines APY as a rate reflecting both the interest rate and compounding frequency over a 365-day period. This projection holds the stated APY constant and converts it to an equivalent daily rate; actual account day-count and crediting terms can differ. See the CFPB's Regulation DD APY definition. Want to run a different combination? Open the full calculator.

Year-by-year breakdown

Year	Interest earned	Year-end balance
1	$450	$10,450
2	$470	$10,920
3	$491	$11,412
4	$514	$11,925
5	$537	$12,462

Related daily-compound scenarios

$25,000 at 5% APY daily compound for 1 year

→ $26,250 (1 year at 5%)

$25,000 at 4.5% APY daily compound for 5 years

→ $31,155 (5 years at 4.5%)

$50,000 at 5% APY daily compound for 5 years

→ $63,814 (5 years at 5%)

$50,000 at 4% APY daily compound for 10 years

→ $74,012 (10 years at 4%)

Try different inputs

Full daily compound interest calculator

Change principal, APY, or years to model your exact HYSA, CD, or money market scenario. Visual chart and year-by-year breakdown included.

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Educational tool. APY rates fluctuate with Federal Reserve policy and the rate environment; verify the current rate at your bank's product page before relying on this projection. Past rates do not guarantee future rates. Verified 2026-10-12.