How to choose
What to weigh before you pick
It usually comes down to 3 things. Compare your options on each before deciding.
The rate at the term length you actually need.
What it costs to break the CD if plans change.
The amount required to open at the advertised rate.
- Marcus pays the highest rate at the 12-, 18-, and 24-month terms and adds a 10-day rate guarantee neither rival offers.
- Synchrony has the widest term menu (3 to 60 months, including odd terms like 11 and 14 months) and a $0 minimum deposit.
- Capital One charges the smallest early withdrawal penalty on long CDs: 6 months of interest versus 9 months at Marcus.
Choosing between a Marcus CD and a Synchrony CD comes down to a handful of practical differences: rate, term flexibility, and what happens if you need the money early. Both banks are large, fully FDIC-insured online deposit providers with no monthly fees and no relationship requirements. Capital One rounds out the comparison as a strong third option, especially if you already bank there.
On a 12-month CD, the spread between the highest and lowest of the three is roughly 10 basis points, about $25 a year on a $25,000 deposit. That gap is real but small enough that penalty structure, term availability, and your existing banking setup should carry at least as much weight as the headline rate.
This marcus vs synchrony cd comparison walks through current rates at every common term, early withdrawal penalties in dollar terms, the marketing hooks each bank uses, and a clear decision framework so you can commit with confidence. We also include Capital One to give the picture context, since most CD shoppers shortlist all three. For the full market beyond these banks, the best CD rates page tracks dozens of providers in real time, and our CD ladder strategy guide explains when locking money up actually beats keeping it liquid. Rates below are sourced from each provider's published rate sheet and cross-checked against the SwitchWize rate database.
Marcus vs Synchrony CD: Current Rate Comparison
Rates shift frequently, so the table below uses live tokens that update automatically. The pattern has been consistent through most of 2026: Marcus leads at the most popular mid-range terms, Synchrony competes hard at the short end, and Capital One trails slightly but makes up ground on penalty flexibility.
| Term | Marcus | Synchrony | Capital One | Leader |
|---|---|---|---|---|
| 6 months | … | … | … | Close call |
| 12 months | … | … | … | Marcus |
| 24 months | … | … | … | Marcus |
For context, the best 12-month CD rate across all tracked providers is currently 4.15%, and the 1-year Treasury yields 4.10%. A top marcus vs synchrony cd at the 12-month term sits very close to both benchmarks, which means you are not leaving meaningful yield on the table with any of these three banks.
The trend line above matters more than any single snapshot. If CD rates are falling, as many forecasters expect while the Fed funds rate sits at 3.75% and could move lower, locking a term sooner beats waiting for the leaderboard to reshuffle.
Dollar-Impact Ladder by Deposit Size
To make the rate gap tangible, here is what the difference between Marcus and Capital One on a 12-month CD means in actual dollars (assuming roughly a 10-basis-point spread):
| Deposit | Extra interest at Marcus over 12 months | Over a 5-year ladder (cumulative) |
|---|---|---|
| $10,000 | ≈ $10 | ≈ $50 |
| $25,000 | ≈ $25 | ≈ $125 |
| $50,000 | ≈ $50 | ≈ $250 |
| $100,000 | ≈ $100 | ≈ $500 |
The numbers are real but not dramatic. For most savers, penalty structure and term fit will matter more than chasing 10 basis points.
How Each Bank Stacks Up on Features
Marcus by Goldman Sachs
Term options: 6, 9, 12, 18, 24, 36, 48, 60 months. No promotional or oddly-termed CDs.
Minimum deposit: $500.
Rate lock: Marcus offers a 10-day rate guarantee on new CDs. If the rate at your chosen term increases within 10 days of opening, you get the higher rate automatically. Neither Synchrony nor Capital One offers anything comparable, and in a volatile rate environment it amounts to a free option on a better deal.
Early withdrawal penalty:
- 90 days of interest on terms of 12 months or less
- 270 days of interest (9 months) on terms over 12 months
The 270-day penalty on longer terms is the most punitive of the three. If there is any chance you will need the money before maturity, think carefully before a 3- or 5-year Marcus CD.
Customer service: US-based phone support, 8 AM–10 PM ET. App Store rating 4.9 (5,200+ reviews as of mid-2026).
Where Marcus wins
- Highest rate at the 12-, 18-, and 24-month terms, the most popular CD maturities
- 10-day rate guarantee is unique and genuinely useful
- Clean, minimal app with no aggressive cross-selling
- Backed by Goldman Sachs Bank USA, one of the most capitalized banks in the country
Where Marcus falls short
- Harshest early withdrawal penalty on terms longer than one year
- No terms shorter than 6 months
- $500 minimum is small but not zero: Synchrony and Capital One require $0
- No checking account, so funding requires an external ACH transfer
Synchrony Bank
Term options: 3, 6, 9, 11, 12, 14, 15, 16, 18, 19, 24, 36, 48, 60 months. The unusual terms (11, 14, 16, 19 months) are useful for laddering with specific target maturity dates, a feature no other major online bank matches.
Minimum deposit: $0 ($2,000 for some promotional rate tiers).
Early withdrawal penalty:
- 90 days of interest on terms of 12 months or less
- 180 days of interest on terms over 12 months
This is the most lenient penalty of the three on longer CDs. If you are building a 3- to 5-year CD ladder and want to keep the option of early withdrawal open, Synchrony's penalty structure works in your favor.
Customer service: US-based phone support, 8 AM–12 AM ET, extended hours versus the other two. App Store rating 4.6.
Where Synchrony wins
- Widest term menu by far, including rare intermediate maturities
- $0 minimum deposit, genuinely no barrier to entry
- Most lenient long-term early withdrawal penalty (180 days vs 270 at Marcus)
- Extended customer service hours
Where Synchrony falls short
- Rates trail Marcus by roughly 5–10 basis points at most popular terms
- No rate guarantee feature
- App experience rated lower than Marcus and Capital One
- No checking account or broader banking ecosystem
Capital One
Term options: 6, 9, 12, 18, 24, 30, 36, 48, 60 months.
Minimum deposit: $0.
Early withdrawal penalty:
- 3 months of interest on terms of 12 months or less
- 6 months of interest on terms over 12 months
The 6-month penalty on longer terms is the most favorable of the three banks. Consider a scenario: on a 5-year CD at roughly 4.00%, the penalty for early withdrawal in year 4 is about 2% of principal, versus roughly 4.5% at Marcus. That difference is worth hundreds of dollars on a large deposit.
Customer service: Phone and chat, 8 AM–11 PM ET. App Store rating 4.8.
Note on the Discover acquisition: Capital One closed its acquisition of Discover Financial Services in 2025. The former Discover CD product is now branded Capital One and follows Capital One's rate sheet and terms. Existing Discover CDs were transitioned at their original rates and terms.
Where Capital One wins
- Lowest early withdrawal penalty, especially on long CDs
- Full-service ecosystem: checking, savings, credit cards all in one app
- Smoothest sign-up for existing Capital One customers
- $0 minimum with no promotional tiers to navigate
Where Capital One falls short
- Rates typically 5–10 basis points below Marcus at the 12- and 24-month terms
- No rate guarantee
- Fewer term options than Synchrony
- Slightly less competitive at the very short end (3- and 6-month terms)
Marketing Hooks vs Long-Term Reality
All three banks promote their CDs with a version of the same hook: "Lock in a high rate before rates fall." The implication is urgency: open today or miss out. Here is what that hook gets right and where it misleads.
What's true: The Fed funds rate is currently 3.75%, and market expectations point to further cuts. When the Fed cuts, online banks typically lower CD rates within weeks. If you plan to buy a CD at all, buying sooner does capture a higher rate than buying later in a declining-rate environment.
What's misleading: The hook implies that any CD is better than alternatives. In reality, a 1-year Treasury at 4.10% is competitive with top CD rates and exempt from state and local income tax. In high-tax states like California or New York, the after-tax yield on a Treasury can beat a CD by 20–30 basis points. Before you lock money into any of these three banks, check whether a Treasury bill does the same job with a tax advantage.
Similarly, Synchrony's "$0 minimum" headline is accurate but worth scrutinizing: some of the bank's best promotional rates require a $2,000 deposit. The $0 minimum applies to standard-rate CDs, which may sit a few basis points below the promoted tier. Always verify which rate tier you qualify for before funding.
Marcus's 10-day rate guarantee sounds generous, and it is genuinely useful, but 10 days is a narrow window. If rates jump on day 11, you are locked in at the old rate for the full term. The guarantee protects against small timing risk, not against a major rate move after your grace period ends.
For a broader look at how savings rates interact with the Fed's path, see our HYSA vs CD decision guide.
The Decision Framework: Marcus vs Synchrony CD (and Capital One)
Choose Marcus if …
- Your target term is 12, 18, or 24 months and you will hold to maturity
- You want the highest available rate among these three banks
- You value a clean, no-upsell interface
- The 10-day rate guarantee matters to you (useful during volatile weeks)
Choose Synchrony if …
- You need an unusual maturity (11, 14, 16, or 19 months) for precise ladder timing
- You want the lowest possible early withdrawal penalty on CDs longer than one year
- You prefer a $0 minimum with no minimum-balance tiers
- Extended customer support hours (until midnight ET) are important to you
Choose Capital One if …
- You already have a Capital One checking, savings, or credit card account
- You are buying a 3- to 5-year CD and want the flexibility to break it early at minimal cost
- You prefer one app for all your banking
- You are comfortable giving up 5–10 basis points of yield for ecosystem convenience
For example, consider Priya, a saver with $50,000 in a checking account earning next to nothing. She wants to lock $40,000 into CDs and keep $10,000 liquid. If Priya picks Marcus for a 12-month CD at …, she earns roughly $50 more over the year than the same CD at Capital One, meaningful but not decisive. However, Priya also has a Capital One checking account she uses daily. For her, the convenience of seeing her CD balance alongside checking in one app, plus Capital One's gentler 6-month early withdrawal penalty, may outweigh $50 in extra interest. On the other hand, if Priya wants to build a precise 11-month / 14-month / 24-month ladder timed to specific expenses, Synchrony is the only bank of the three that offers those intermediate terms.
What All Three Share
Before you over-optimize, remember what is identical across the board:
- FDIC insurance up to $250,000 per depositor. All three are direct depository institutions, not fintech wrappers around partner banks.
- No monthly fees. Standard for online CDs but not universal across the industry.
- No required relationships. None demand a checking account, direct deposit, or another product to access the published CD rate.
- Interest compounded daily, credited monthly. Identical math across the three.
- ACH funding within 1–3 business days. None offer same-day funding.
- Auto-renewal at maturity unless you instruct otherwise. Each provides a 7- to 10-day grace period during which you can withdraw or change terms without penalty.
The FDIC's deposit insurance page confirms coverage limits and explains how joint accounts can extend that ceiling. If your deposit exceeds $250,000, consider splitting across two of these banks to stay fully insured.
What This Comparison Does Not Cover
Brokered CDs. CDs purchased through a brokerage (Fidelity, Schwab, Vanguard) often pay higher rates because issuing banks compete more aggressively for brokerage volume. Brokered CDs from all three banks above are typically 10–25 basis points higher than direct rates. The trade-off: brokered CDs are sold on a secondary market rather than penalty-redeemed at the bank, which introduces market-price risk if you sell before maturity.
Smaller banks and credit unions. Some lesser-known online institutions periodically offer CD rates 25–50 basis points above these three, often with smaller deposit minimums or specific promotional terms. Our best CD rates guide tracks the full field. The NCUA's credit union locator can help you find insured credit union CDs in your area.
Keeping the cash liquid instead. If you are not sure you can lock the money up at all, the CD-versus-savings question comes first. A top high-yield savings account currently pays 4.40%, which is competitive with shorter CD terms and imposes no withdrawal penalty. The HYSA vs CD guide covers that decision in detail.
Methodology
SwitchWize ranks CD products by pulling published APYs directly from each bank's rate page daily and cross-referencing against the SwitchWize rate database. Early withdrawal penalties, minimum deposits, and term availability are verified quarterly against each institution's account disclosures. Editorial rankings weight APY most heavily, followed by penalty structure and term flexibility. For full details, see our methodology page. Rate data referenced by the Federal Reserve's selected interest rates release is used for benchmark comparisons.
This is educational information, not personalized financial advice.
What to Do Now
Frequently Asked Questions
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