Switching pays when the extra interest you would earn over the time you will actually hold the money is larger than the cost of moving it. With 2026 savings rates, the rate gap between two accounts can be wide or narrow, and a variable rate can change after you open it, so the answer is a break-even calculation rather than a headline comparison.
Key takeaways
- The FDIC's national average savings rate was 0.38% in its October 19, 2026 release, so an account that has not been reviewed in a while may leave a large gap to close.
- Extra interest equals balance times rate gap times time held. A 0.25 percentage point gap on $20,000 is about $50 a year; a 3 point gap is about $600.
- Friction (fees, days with no interest, forfeited bonuses, conditions you may miss) sets the break-even point. In the illustrative example below, a $25 fee plus three idle days is recovered in about 16 days at a 3.62 point gap.
- A promotional rate that falls after three months can lose to a steady account: in the example it earns $80 less over 12 months.
- FDIC and NCUA coverage is $250,000 per depositor (or owner), per insured institution, per ownership category, so a large balance may need to be split.
2026 savings rates and the gap
The FDIC publishes national deposit rates each month. In the release dated October 19, 2026, the national rate for savings accounts was 0.38%, for money market accounts 0.63%, and for 12-month CDs 1.76% (FDIC national rates and rate caps). The national rate is a weighted average of what insured banks and credit unions pay, with each institution weighted by its share of deposits, so it leans toward the institutions that hold the most money. The same table lists a national rate cap of 4.63% for savings. Under the FDIC's interest rate rule, a well capitalized bank may pay any rate, while a bank that is not well capitalized may not solicit deposits at a rate above the cap (12 CFR 337.7). The cap is therefore a regulatory ceiling, not a list of what banks pay and not a benchmark for a good offer.
The Federal Reserve's decisions are the background to these rates. The federal funds target range stayed at 3-1/2 to 3-3/4 percent at every meeting from January through July, starting with the January 28 statement (FOMC statement, January 28, 2026) and ending with the July 29 statement, at which three members dissented in favor of an increase (FOMC statement, July 29, 2026). On September 16 the Committee raised the range by 1/4 percentage point, from 3-1/2 to 3-3/4 percent to 3-3/4 to 4 percent (FOMC statement, September 16, 2026). On October 28 it kept that range, with two members dissenting in favor of a quarter-point increase (FOMC statement, October 28, 2026).
The Fed sets a target for the federal funds rate, not the rate on a savings account. Each bank sets its own deposit rates, and many savings accounts are variable-rate accounts, meaning the rate can change after opening. Under Regulation DD, the Truth in Savings rule for banks, a bank does not have to give advance notice of a rate change on a variable-rate account (12 CFR 1030.5). Federally insured credit unions follow the NCUA's parallel Truth in Savings rule, which has the same exception for variable-rate changes (12 CFR part 707). Any gap you calculate today is therefore an estimate that can shrink or grow.
The break-even formula
Treat the move as a small investment: you pay a cost now and collect extra interest later. The approximation below uses simple interest, which is close enough for holding periods of a year or less because APY already folds compounding into one annual figure.
Extra interest = Balance × (APY_new − APY_old) × (Months_held / 12)
Friction = Fees + Balance × APY_new × (Idle_days / 365) + Lost_bonus_or_conditional_rate
Net gain = Extra interest − Friction
Break-even months = Friction / (Balance × (APY_new − APY_old) / 12)
- Balance is the amount that actually moves, not your total savings.
- APY_new, APY_old are the rates you expect to receive after conditions, as decimals (4.00% is 0.04).
- Months_held is how long the money will stay, not how long a promotion runs.
- Idle_days are days the money earns nothing at either bank while a transfer settles.
- Lost_bonus_or_conditional_rate is any bonus you would forfeit by leaving early, or the interest lost if a condition fails.
An advertised APY covers only interest that does not depend on events that may or may not occur. Regulation DD says interest or other earnings determined by circumstances that may or may not occur in the future are not to be included in the APY (12 CFR part 1030, Appendix A). If a rate needs a direct deposit or a minimum balance, use the rate you get when you miss the condition in the months you might miss it.
How balance and gap interact
The table assumes a flat $25 of friction, such as a transfer fee, and leaves idle days out (the example below adds them). It computes how many months of extra interest it takes to recover that cost. All figures are illustrative and use the simple-interest formula above.
| Balance moved | Rate gap | Extra interest per year | Months to recover $25 |
|---|---|---|---|
| $2,000 | 0.25 points | $5 | 60 |
| $2,000 | 3.00 points | $60 | 5 |
| $20,000 | 0.25 points | $50 | 6 |
| $20,000 | 3.00 points | $600 | 0.5 |
| $100,000 | 0.25 points | $250 | 1.2 |
A small gap on a small balance rarely justifies the effort, while the same small gap on a six-figure balance recovers the same $25 in about five weeks. Balance and gap multiply, so a large gap matters most when the balance is large, but neither alone decides it.
Illustrative example: $20,000 and a variable rate
Assume a current account at 0.38% (the FDIC national savings rate in October 2026) and a new variable-rate account at 4.00%. Both rates and the fees are hypothetical.
- Extra interest per year: $20,000 × (0.0400 − 0.0038) = $724, or $60.33 a month.
- Idle days: assume 3 days with no interest at either bank, costing $20,000 × 0.04 × 3 / 365 = $6.58.
- Fee: assume $25 for an outgoing transfer. Total friction is $31.58.
- Break-even: $31.58 / $60.33 = 0.52 months, about 16 days.
At those inputs the move pays back quickly. The result is sensitive to the gap, though. If the new rate fell to 0.63% (the national money market figure used here as a stand-in for a weak offer), the monthly gain would be $4.17 and the friction ($1.04 of idle-day interest plus the $25 fee) would take about 6.3 months to recover.
Illustrative example: a promotional rate that drops
Assume a $20,000 balance in an account that pays a steady 3.90%. A new account pays 5.00% for the first 3 months and 3.00% afterward. Over 12 months the new account earns $20,000 × 0.05 × 3/12 = $250 plus $20,000 × 0.03 × 9/12 = $450, a total of $700. The steady account earns $20,000 × 0.039 = $780, so staying is ahead by $80 before any friction. If the money would leave after exactly 3 months, the promotion wins by $55 ($20,000 × 0.011 × 3/12), which still has to cover the cost of moving. After month 3 the new account falls behind by $15 a month ($20,000 × 0.009 / 12), so the $55 lead is gone after about 3.7 more months: before friction, the promotion wins only if the money leaves within roughly 6.7 months. The lesson is that the length of your holding period decides which rate matters.
Frictions that eat the gap
Bonuses and conditional rates
Regulation DD defines a bonus as a premium, gift or other consideration worth more than $10 given in exchange for opening, maintaining, renewing or increasing an account balance (12 CFR 1030.2). Account disclosures must state the amount or type of any bonus, when it will be provided, and any minimum balance and time requirements to get it (12 CFR 1030.4). What counts for the break-even is whether you will meet them: a required holding period, a minimum balance, a direct deposit. If you leave early, the account terms say whether the bonus is forfeited or reversed. Add that amount to Friction.
Minimums, fees and withdrawal limits
A new account may require a minimum balance to earn its top rate, and the old account may charge a fee if you leave a low balance behind. Both are in the account agreements. On transfer limits, the Federal Reserve removed the six-per-month limit on convenient transfers from the Regulation D definition of savings deposits in April 2020, which allows institutions to stop enforcing it (Federal Reserve Board, April 24, 2020). Whether a given bank still caps transfers or charges for them is a matter for its account agreement, so check it if you expect to move money often.
Transfer timing in general terms
Regulation CC requires a bank to make funds received by electronic payment available no later than the business day after the banking day on which it received the payment in collected funds (12 CFR 229.10(b)). That rule covers transaction accounts such as checking. For these availability rules, the regulation's definition of "account" excludes savings deposits (12 CFR 229.2(a)), so when money moves straight into a new savings account, the bank's own funds-availability terms decide when you can use it. Regulation CC also does not set how many days an ACH transfer spends in transit. That depends on the sending and receiving banks' cutoff times, verification steps for a newly linked account, weekends and holidays. Ask both banks for their timing, and treat the days before the money posts as Idle_days in the formula.
Insurance coverage when you move
FDIC insurance covers $250,000 per depositor, per FDIC-insured bank, for each account ownership category. All deposits in the same category at the same bank are added together, single and joint accounts are separate categories, and deposits at different insured banks are insured separately (FDIC, Understanding Deposit Insurance). The FDIC covers deposit products such as savings, checking, money market deposit accounts and CDs, but not stocks, bonds, mutual funds or crypto assets (FDIC, Deposit Insurance). Coverage applies only if the bank holding the deposit is FDIC-insured, and it does not cover the failure of a company that is not an insured bank, so confirm the institution's insured status with the FDIC's BankFind tool before you move money. To estimate your own coverage, use the FDIC's Electronic Deposit Insurance Estimator.
Credit unions have a parallel system run by a different agency. The NCUA Share Insurance Fund covers up to $250,000 per member-owner, per ownership category, at each federally insured credit union (NCUA, Share Insurance Coverage). Illustrative example: moving a single-owner balance of $300,000 into one new bank leaves $50,000 above the standard limit in that category at that bank. Splitting the balance between two insured banks keeps each below $250,000.
Frequently asked questions
Does a Fed rate decision change my savings rate right away?
Not by itself. An FOMC statement sets a target range for the federal funds rate, such as 3-3/4 to 4 percent after the October 28, 2026 meeting. The rate on your account is set by your bank, and on a variable-rate account it can change without advance notice.
Do savings rates change after I open the account?
On a variable-rate account, yes. Regulation DD requires the bank to disclose that the rate and APY may change, how the rate is determined and how often it may change. It does not require advance notice of a change on those accounts.
How long until a transfer is available to spend?
It depends on the account type. For checking and other transaction accounts, Regulation CC requires availability by the business day after the bank receives an electronic payment. Savings deposits are outside that rule, so a new savings account follows the bank's own availability terms. In both cases the days in transit depend on the banks' cutoffs, verification and holidays, so ask both banks and keep the old account funded until the new balance posts.
Does splitting money across banks raise my insured amount?
Yes. FDIC coverage applies separately at each insured bank, so $300,000 in single-owner accounts split between two insured banks is fully insured as long as neither bank holds more than $250,000 of it. Accounts in the same ownership category at the same bank are added together, regardless of how many you hold there.
Is a credit union savings account covered the same way?
Credit unions use NCUA share insurance rather than the FDIC. The standard amount is $250,000 per member-owner, per ownership category, at each federally insured credit union, and the NCUA offers a share insurance estimator and a credit union locator to confirm coverage.
A checklist before you move money
This article is educational and is not personal financial advice; account terms differ and change.
- Write down the balance that would move and how long it will stay.
- Find your current APY after conditions and the new account's APY after conditions, including any date when it drops.
- List fees, minimums, bonus requirements and how you would be affected if you miss one.
- Ask both banks for transfer timing, and count the days with no interest as Idle_days.
- Run the break-even formula, then rerun it with the new rate lowered by one point to see whether the move still pays.
- Check coverage for the new bank with the FDIC estimator or the NCUA estimator.
- Keep the old account open until the new deposit has posted and any bonus conditions are met.
Sources
- FDIC, National Rates and Rate Caps (release of October 19, 2026)
- 12 CFR 337.7, interest rate restrictions (eCFR)
- Federal Reserve, FOMC statement, January 28, 2026
- Federal Reserve, FOMC statement, July 29, 2026
- Federal Reserve, FOMC statement, September 16, 2026
- Federal Reserve, FOMC statement, October 28, 2026
- Federal Reserve Board, press release on Regulation D, April 24, 2020
- Regulation DD (eCFR): 12 CFR 1030.2, 12 CFR 1030.4, 12 CFR 1030.5 and Appendix A
- 12 CFR part 707, NCUA Truth in Savings (eCFR)
- Regulation CC (eCFR): 12 CFR 229.10 and 12 CFR 229.2
- FDIC, Understanding Deposit Insurance
- FDIC, Deposit Insurance and Electronic Deposit Insurance Estimator
- NCUA, Share Insurance Coverage
