Deposit Insurance Calculator

Written byOleh Soloninupdated 25 September 2026

Currency

Savings

How many banks they sit in

Insurance limit

Insured limit per bank

$250,000 per depositor, per ownership category, per bank under the FDIC in the US; set your own scheme's figure.

Deposit rate, %

Term, months

Interest is added to the deposit monthly

Result

Covered

$250,000.00

Outside the guarantee

$156,840.00

Per bank

$400,000.00

With interest at maturity

$406,840.00

Banks needed

Safe deposit size

$245,796.87

Limit per bank

$250,000.00

Working

Safe deposit: 250,000.00 ÷ (1 + 1.71% × 12 ÷ 12) = 245,796.87 Banks: 400,000.00 ÷ 245,796.87 = 1.63 → 2

How to spread it across banks

Bank          Deposit    With interest          Insured
   1       245,796.87       250,000.00       250,000.00
   2       154,203.13       156,840.00       156,840.00

This result is informational only and is not professional advice.

The limit per bank, interest inside the limit, and how to spread savings

How much of your savings stays within a deposit insurance limit such as the FDIC's $250,000, including interest to the end of the term, the largest safe deposit, how many banks you need and how to spread the money, with Russia's limits as a preset.

Deposit insurance covers a fixed amount per depositor at each bank. In the US the FDIC insures deposits up to $250,000 per depositor, per FDIC-insured bank, for each account ownership category. The calculator shows how much of your savings, with interest to the end of the term, stays inside a limit you choose.

It also works out the largest deposit that stays under the limit once interest is added, how many banks the whole amount needs, and how to split it between them. Russia's limits are built in as presets, and any other limit can be typed in.

How to use

Enter your savings and the number of banks they are held in.
Choose a limit: type your own, such as 250,000 for the FDIC, or pick one of Russia's limits.
Enter the deposit rate and term, and tick the box if interest is added to the deposit every month.
Read how much is insured and uninsured, the safe deposit and the table of how to spread the money.

How FDIC coverage works

The FDIC insures deposits up to $250,000 per depositor, per FDIC-insured bank, for each account ownership category. All your deposits in the same ownership category at the same bank are added together. Ownership categories include single accounts, joint accounts, certain retirement accounts such as IRAs, trust accounts, employee benefit plan accounts, corporation, partnership and unincorporated association accounts, and government accounts.

So a single account and a joint account at the same bank are insured separately, and two single accounts at two different insured banks are each insured up to $250,000. Two single accounts at the same bank, such as checking and savings, share one $250,000 limit.

From the FDIC page Understanding Deposit Insurance.
Covered by FDIC insurance	Not covered
Checking and NOW accounts	Stocks and bonds
Savings accounts	Mutual funds
Money market deposit accounts	Annuities and life insurance policies
Certificates of deposit (CDs)	Safe deposit boxes and their contents
Cashier's checks, money orders and other official items issued by a bank	US Treasury bills, bonds and notes; municipal securities; crypto assets

The safe deposit amount with interest

If interest is added to the balance, a deposit placed at exactly the limit goes over it as soon as interest is credited. The largest safe deposit is limit ÷ (1 + rate × years): at 1.71% for a year, the FDIC national rate for a 12-month CD in August 2026, 250,000 ÷ 1.0171 = 245,796.87. At 4% for two years it is 231,481.48.

How to spread savings across banks

400,000 at 1.71% for a year in one bank grows to 406,840, and with a 250,000 limit 156,840 of it is outside the cover. Two banks cover it all: 245,796.87 in one and 154,203.13 in the other. With 600,000 at 4% for two years you would need three.

Russia's limits

The presets follow Russia's Federal Law No. 177-FZ: 1.4 million roubles for all ordinary deposits of one person at one bank, 2.8 million roubles separately for long-term rouble savings certificates, and up to 10 million roubles in special circumstances such as proceeds from selling a home or an inheritance.

What this calculator shows

How much of your savings, with interest, is inside and outside the limit
The largest deposit that stays within the limit including interest
How many banks you need and how to spread the money
A calculation for your own limit or one of Russia's

What to keep in mind

Interest is worked out to the end of the term, simple or compounded monthly, and counted as part of the balance against the limit.
With several banks, savings are assumed to be split equally.
FDIC coverage depends on ownership category; enter the limit that applies to the accounts you are checking.

Where the numbers come from

Checked against the FDIC page Understanding Deposit Insurance; Russian Federal Law No. 177-FZ for the Russian presets · verified September 2026.

FAQs

How much does the FDIC insure?

Up to $250,000 per depositor, per FDIC-insured bank, for each account ownership category, according to the FDIC.

Are two accounts at the same bank insured separately?

Only if they are in different ownership categories. A checking and a savings account in your own name share one $250,000 limit; a single account and a joint account are insured separately.

Are CDs and money market accounts covered?

Certificates of deposit and money market deposit accounts at an FDIC-insured bank are covered. Stocks, bonds, mutual funds, annuities, crypto assets and Treasury securities are not.

How much can I deposit so interest does not take me over the limit?

Divide the limit by 1 plus the interest for the term: 250,000 ÷ (1 + 1.71% × 1) = 245,796.87 for a year. The calculator also handles monthly compounding.

How many banks do I need for my savings?

Divide your savings by the safe deposit and round up. 400,000 at 1.71% for a year needs 2 banks; 600,000 at 4% for two years needs 3.

What are the deposit insurance limits in Russia?

1.4 million roubles per person per bank for ordinary deposits, 2.8 million roubles separately for long-term rouble savings certificates, and up to 10 million roubles in special circumstances, under Federal Law No. 177-FZ.

Worked example

400,000 in one bank

Input: 400,000 in one bank, a 250,000 limit, 1.71% for 12 months

Output: 156,840 outside the limit; 2 banks needed; safe deposit 245,796.87

Note: With interest the balance reaches 406,840 by the end of the year.

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