Dedham Institution for Savings savings, CD and money market rates
Dedham Institution for Savings advertises up to 5.00% APY on its Start Up Savings account. That 5.00% is a promotional rate. The account advertises 0.05% after it ends.
That is 4.63 percentage points above the national savings average of 0.37% (FDIC, Sep 2026).
Ranked #11 of 2927 tracked savings rates by advertised APY. For a $10,000 balance it would rank #3.
Estimate your earnings·What Dedham Institution for Savings actually pays
Dedham Institution for Savings at a glance
| Savings | |
|---|---|
| Top savings APY | Up to 5.00% · Start Up Savings · promotional rate |
| Minimum to open | $25 · Start Up Savings |
| Against the national average | 4.63 percentage points above the 0.37% FDIC savings average (Sep 2026) |
| CDs | |
| Top CD APY | 4.15% · 15 months · 15 Month Special CD |
| Minimum to open | $1,000 · 15 months CD |
| Money market | |
| Top money market APY | Up to 3.00% · Premium Money Market Account · needs at least $10 · promotional rate |
| Minimum to open | $10 · Premium Money Market Account |
| Against the national average | 2.37 percentage points above the 0.63% FDIC money market average (Sep 2026) |
| FDIC certificate | 23620 · Dedham, MA |
|---|---|
| Website | www.dedhamsavings.com |
| Branches | 15 branches in MA |
| Availability | Available in MA |
Dedham Institution for Savings savings, CD and money market rates
Personal
How the rate applies
IRA
Rates are APY. The national savings average is 0.37% (FDIC, Sep 2026). The top tracked savings rate on Banksparency is 12.00%. Across 60 savings accounts from 59 banks in the Banksparency core savings index, the median advertised rate is 3.65%, and one account in ten advertises 4.16% or more. See the highest savings rates.
Dedham Institution for Savings CD rates
| Term | APY | Minimum | Product |
|---|---|---|---|
| Personal CDs | |||
| 3 months | 0.50% | $1,000 | 91 Day CD |
| 5 months | 4.05%That 4.05% is a promotional rate. | $1,000 | 5 Month Special CD |
| 6 months | 1.00% | $1,000 | 182 Day CD |
| 8 months | 4.10%That 4.10% is a promotional rate. | $1,000 | 8 Month Special CD |
| 12 months | 3.50% | $1,000 | 12 Month CD |
| 15 months | 4.15%That 4.15% is a promotional rate. | $1,000 | 15 Month Special CD |
| 18 months | 3.50% | $1,000 | 18 Month CD |
| 24 months | 3.51% | $1,000 | 24 Month CD |
| 30 months | 3.00% | $1,000 | 30 Month CD |
| 36 months | 3.00% | $1,000 | 36 Month CD |
| 48 months | 3.00% | $1,000 | 48 Month CD |
| 60 months | 3.00% | $1,000 | 60 Month CD |
| IRA CDs | |||
| 3 months | 0.50% | $100 | 91 Day IRA CD |
| 5 months | 4.05%That 4.05% is a promotional rate. | $100 | 5 Month Special IRA CD |
| 6 months | 1.00% | $100 | 182 Day IRA CD |
| 8 months | 4.10%That 4.10% is a promotional rate. | $100 | 8 Month Special IRA CD |
| 12 months | 3.50% | $100 | 12 Month IRA CD |
| 15 months | 4.15%That 4.15% is a promotional rate. | $100 | 15 Month Special IRA CD |
| 18 months | 3.50% | $100 | 18 Month IRA CD |
| 24 months | 3.51% | $100 | 24 Month IRA CD |
| 30 months | 3.00% | $100 | 30 Month IRA CD |
| 36 months | 3.00% | $100 | 36 Month IRA CD |
| 48 months | 3.00% | $100 | 48 Month IRA CD |
| 60 months | 3.00% | $100 | 60 Month IRA CD |
Interactive Tool
Calculate Savings for Dedham Institution for Savings
All calculations are based on APY.
Savings Breakdown
- Interest Earned+$1,985.40(12.4%)
- Total Contributions$13,000
- Initial Deposit$1,000
Projected Balance
$15,985.40
The Banksparency Savings Calculator provides estimated savings growth based on user input and our latest data.
What Dedham Institution for Savings pays on deposits
FDIC call report data
An advertised rate tells you what a new savings account earns today. It cannot tell you how the bank has priced the savings and money market deposits it already holds, over time. This section shows that. The figure is computed from the interest expense and deposit balances that every bank files with the FDIC in the same form. That is what makes it comparable across banks and across quarters.
The two figures answer different questions, so they sit side by side and are not combined. That 5.00% is a promotional rate. The account advertises 0.05% after it ends.
In Q2 2026, Dedham Institution for Savings paid a higher average rate on savings and money market deposits than 86% of banks that reported a figure (FDIC call report). The all-bank median was 1.45%.
- Dedham Institution for Savings, savings and money market
- All-bank median
How to read these figures
What the average covers. It is an average across the whole bank, taken from its own quarterly FDIC call report. It covers savings accounts and money market deposit accounts, personal and business, at every balance tier. It also covers accounts that were opened years ago and keep the rate of those years. The FDIC line does not separate consumer accounts.
The second figure. The scale row also shows the average across all interest-bearing deposits: savings, interest checking, money market accounts, CDs, personal and business. That figure covers the whole deposit book. The two are shown separately and are not combined.
What the advertised rate covers. It is the rate that this bank advertises now for a new savings account. Banksparency records it from the bank's website on the date shown beside it.
Why the two differ. They measure different things, so this page shows them side by side and keeps them apart. An advertised rate applies to one account, opened now, at today's price. The average also includes older savings balances at the rates of earlier years, money market balances that were priced in a different rate environment, and business accounts. An average below an advertised rate is the usual result of that arithmetic. On its own it is not evidence about the account that you would open.
What the average is useful for. The bank files the data itself, under reporting instructions that are the same for every filer, and the same computation runs for every bank on this site. That makes it comparable in a way that an advertisement is not. Two things on this page read it: the percentile, which shows where the quarter sits among all filers, and the chart, which shows the direction the figure has moved across quarters.
What the average cannot tell you. It cannot tell you the rate that you would earn. No single customer earns the average. For your rate, read the advertised rate above and the rate tables on this page, each with the date it was observed.
What to do next. Use the advertised rate to work out what a new account earns. Use the chart to see how the quarterly average has moved against the all-bank median. Then compare the advertised rate against the current rates on the savings-rate tables before you open an account.
Definitions: Call Report · Rate Paid on Deposits · Interest-Bearing Deposits · Front Book and Back Book · Deposit Rate Percentile
Average annualized rates paid on savings and money market deposits, and on all interest-bearing deposits, quarterly. The FDIC line for savings includes money market deposit accounts and business savings deposits and does not separate consumer accounts. Source: FDIC call report data, as reported; it may be amended. The percentile compares all FDIC filers, count-weighted. A missing quarter is suppressed, never interpolated. The percentile counts the banks that paid strictly less on savings and money market deposits, one vote per bank, among the banks that reported a figure for the quarter.
So what is the catch?
| Product | APY | Min to open | Min to earn | Balance cap | Monthly fee | Requirements | Rate type | 12-mo trend |
|---|---|---|---|---|---|---|---|---|
| Start Up Savings | Up to 5.00% | $25 | not stated | not stated | not stated | not stated | Promotional | not enough history |
| Fine print: Limited time offer for funds not currently on deposit at Dedham Savings. Rates guaranteed until 12/31/26. Online statements are required within 30 days of opening, or the account reverts to Statement Savings. One account per client. The stated APY applies to balances up to $1,000. Balances over $1,000 earn a lower rate. | ||||||||
| High Yield Savings | 3.40% | $20,000 | $0 | $2,500,000 | not stated | not stated | Tiered | not enough history |
| Fine print: Must be opened with at least $20,000 in funds not currently on deposit at Dedham Savings. Balances under $20,000 or over $2,500,000 earn the lower rate on the entire balance. Personal accounts only. | ||||||||
| Statement Savings | 0.05% | $10 | $10 | None | not stated | not stated | One rate | not enough history |
| Premium Money Market Account | Up to 3.00% | $10 | $10 | not stated | not stated | not stated | Promotional | not enough history |
| Preferred Money Market Account | Up to 0.50% | $10 | $10 | not stated | not stated | not stated | Promotional | not enough history |
| Money Market Account | 0.05% | $10 | $10 | None | not stated | not stated | One rate | not enough history |
| Fine print: A $5 monthly fee applies when the average daily balance drops below $1,000. | ||||||||
Fine print for 2 products above: Limited time offer for funds not currently on deposit at Dedham Savings. Maximum deposit of $2,000,000.
Rate type: one rate applies at every balance. A tiered rate changes with your balance. A promotional rate changes after the period shown. A balance cap is the largest balance the highest rate applies to.
The 12-month trend shows the highest advertised rate observed each day and includes promotional tiers where one applied.
CDs
| Product | Term | APY | Min to open | Early withdrawal fee | Compounding |
|---|---|---|---|---|---|
| Personal CDs | |||||
| 91 Day CD | 3 months | 0.50% | $1,000 | not stated | not stated |
| 5 Month Special CD | 5 months | 4.05% | $1,000 | not stated | not stated |
| 182 Day CD | 6 months | 1.00% | $1,000 | not stated | not stated |
| 8 Month Special CD | 8 months | 4.10% | $1,000 | not stated | not stated |
| 12 Month CD | 12 months | 3.50% | $1,000 | not stated | not stated |
| 15 Month Special CD | 15 months | 4.15% | $1,000 | not stated | not stated |
| 18 Month CD | 18 months | 3.50% | $1,000 | not stated | not stated |
| 24 Month CD | 24 months | 3.51% | $1,000 | not stated | not stated |
| 30 Month CD | 30 months | 3.00% | $1,000 | not stated | not stated |
| 36 Month CD | 36 months | 3.00% | $1,000 | not stated | not stated |
| 48 Month CD | 48 months | 3.00% | $1,000 | not stated | not stated |
| 60 Month CD | 60 months | 3.00% | $1,000 | not stated | not stated |
| IRA CDs | |||||
| 91 Day IRA CD | 3 months | 0.50% | $100 | not stated | not stated |
| 5 Month Special IRA CD | 5 months | 4.05% | $100 | not stated | not stated |
| 182 Day IRA CD | 6 months | 1.00% | $100 | not stated | not stated |
| 8 Month Special IRA CD | 8 months | 4.10% | $100 | not stated | not stated |
| 12 Month IRA CD | 12 months | 3.50% | $100 | not stated | not stated |
| 15 Month Special IRA CD | 15 months | 4.15% | $100 | not stated | not stated |
| 18 Month IRA CD | 18 months | 3.50% | $100 | not stated | not stated |
| 24 Month IRA CD | 24 months | 3.51% | $100 | not stated | not stated |
| 30 Month IRA CD | 30 months | 3.00% | $100 | not stated | not stated |
| 36 Month IRA CD | 36 months | 3.00% | $100 | not stated | not stated |
| 48 Month IRA CD | 48 months | 3.00% | $100 | not stated | not stated |
| 60 Month IRA CD | 60 months | 3.00% | $100 | not stated | not stated |
Fine print for 4 CDs above: Limited time offer. Converts to a standard 6 Month CD at renewal.
Fine print for 2 CDs above: Limited time offer. Converts to a standard 12 Month CD at renewal.
Opening and using the account
| Availability | Available in MA |
|---|---|
| Footprint | 15 branches in MA |
| Eligibility | not stated |
How Dedham Institution for Savings behaves over time
- Rate last changed
- Oct 12, 2026(effective date)
$10,000 in Dedham Institution for Savings' Start Up Savings earns 5.00% overall at the advertised rates, so it grows to $10,500 in a year. Prices rose 3.4% in the year to August 2026 (Consumer Price Index (CPI)). After a year of prices rising at that pace, it buys as much as $10,155 does today. The top rate is promotional. See how the federal funds rate shapes savings rates.
Dedham Institution for Savings CD rates over time
Who is Dedham Institution for Savings?
| Headquarters | Dedham, MA |
|---|---|
| Founded | 1831 |
| Scale | $2.6B assets · $2.1B deposits, $1.8B of it interest-bearing (Q2 2026, FDIC) |
| Deposit insurance | FDIC insured · Certificate 23620 |
| Charter state | Massachusetts · one of 91 insured banks chartered there (Q2 2026, FDIC) |
| Size | 504th-largest by deposits of 4,238 insured banks (Q2 2026, FDIC) |
| Deposit growth | Higher than at 72% of 4,226 insured banks over the four quarters to Q2 2026 (FDIC) |
Financial detail is in What Dedham Institution for Savings pays on deposits above.
Common questions about Dedham Institution for Savings
Is Dedham Institution for Savings FDIC insured?
Yes. Dedham Institution for Savings is FDIC insured under certificate 23620, so deposits are covered up to $250,000 per depositor, per ownership category.
What is the minimum deposit at Dedham Institution for Savings?
Dedham Institution for Savings requires a minimum deposit of $25 to open its Start Up Savings account, as observed on Oct 12, 2026. Check the bank's current terms before you open an account.
Is the 5.00% at Dedham Institution for Savings a promotional rate?
That 5.00% is a promotional rate. The account advertises 0.05% after it ends. Rates are as observed on Oct 12, 2026.
Does Dedham Institution for Savings have branches?
Yes. Dedham Institution for Savings operates 15 branches according to FDIC branch records, in addition to its website and mobile apps.
Dedham Institution for Savings against its closest alternatives
| Bank | Savings APY | Rate paid on savings and money market deposits (Q2 2026) | Min deposit | Branches |
|---|---|---|---|---|
| Dedham Institution for Savings | Up to5.00% | 2.58% | $25 | 15 branches in MA |
| Axos Bank | Up to5.00% | 2.77% | $0 | 3 branches in CA, NV, UT |
| First Federal Bank of Kansas City | Up to5.00% | 1.09% | $25 | 9 branches in KS, MO |
| Leader Bank, National Association | 5.00% | 3.18% | $10 | 7 branches in MA |
Each savings APY is the top rate of the account the bank's own page leads with. Alternatives are the three tracked banks whose savings APY is closest to Dedham Institution for Savings's.
Similar banks and related pages
Banks in the same rate band with the same product mix:
Other banks chartered in Massachusetts, nearest to Dedham Institution for Savings in deposits:
Rate hubs: today's highest savings rates, CD rates by term, and money market rates.
State pages: savings rates in Massachusetts, CD rates in Massachusetts, money market rates in Massachusetts, and banks in Massachusetts.