Deposit Calculator

Currency

Deposit amount

Rate, % a year

Term, months

Monthly top-up

Compounding

Result

Closing balance

$586,135.40

Your own money

$500,000.00

Interest earned

$86,135.40

Effective rate, %

17.23%

Average per month

$7,177.95

Interest share, %

14.7%

This result is informational only and is not professional advice.

Compounding turns a headline rate into an effective one

Interest on a deposit with monthly, quarterly or annual compounding and optional top-ups, plus the effective annual rate.

The advertised rate and the actual return are different numbers. When interest compounds — is added to the balance and starts earning in its own right — the effective return exceeds the nominal rate. At 16 percent compounded monthly, the effective rate is about 17.2.

Top-ups behave differently: each rouble paid in works for less time than the opening balance. So a deposit with regular contributions earns less than multiplying the final balance by the rate would suggest.

What this calculator shows

The closing balance, your own contributions and the interest earned
The effective annual rate given the compounding frequency
What share of the closing balance is interest

What to keep in mind

Interest is credited at the end of each period on the running balance, top-ups included.
Tax on interest is not deducted — it applies only above an allowance tied to the central bank rate.

FAQs

What is the effective rate?

The return including compounding, annualised. It always exceeds the nominal rate when interest credits more than once a year, and it is the right basis for comparing deposits.

Is deposit interest taxed?

Above an allowance equal to one million roubles times the year's peak central bank rate. Banks report the figures, so no return is needed.

Compounding or interest paid out?

Compounding wins all else being equal, but banks often offer a slightly higher rate on paid-out interest. Compare on the effective rate, not the headline.

What happens if I withdraw early?

The rate is usually recalculated at the demand-deposit rate, effectively wiping out the interest. Accounts allowing partial withdrawal exist but pay less.

Worked example

Half a million for a year at 16 percent

Input: 500,000 ₽, 16% a year, 12 months, monthly compounding

Output: 586,100 ₽, interest 86,100 ₽, effective rate 17.23%

Note: Without compounding the interest would be exactly 80,000. The extra six thousand is interest earning interest.

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