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CD Calculator

CD Yield Calculator

Turn a quoted CD rate into the yield you actually keep.

A scadenza
53.106,31 USD
Interessi
3106,31 USD
Il tuo CD
$
%

Il tasso è indicato come

m

1 anno 6 m

Durate comuni

Frequenza di capitalizzazione

Valore a scadenza
53.106,31 USD
Interessi totali maturati
3106,31 USD
APY effettivo
4,10%

50.000,00 USD in un CD di 1 anno 6 m al 4,10% APY, con capitalizzazione giornaliera, cresce fino a 53.106,31 USD — sono 3106,31 USD di interessi, in media 172,57 USD al mese.

Saldo nel corso della durata

CapitaleInteressi
Vedi i dati in tabella
Saldo nel corso della durata
MeseCapitaleInteressiSaldo
All’apertura50.000,00 USD0,00 USD50.000,00 USD
4mo50.000,00 USD674,20 USD50.674,20 USD
7mo50.000,00 USD1185,81 USD51.185,81 USD
11mo50.000,00 USD1876,00 USD51.876,00 USD
14mo50.000,00 USD2399,75 USD52.399,75 USD
18mo50.000,00 USD3106,31 USD53.106,31 USD

Calculated in your browser using A = P(1 + r/n)nt. Nothing is sent to a server. Figures are before tax; confirm exact terms with your bank.

  • Gratis — senza registrazione
  • Si aggiorna mentre digiti
  • Funziona nel tuo browser

Formule e contenuti verificati l'ultima volta il . I tassi bancari cambiano di frequente: confermi i tassi attuali direttamente con il suo istituto.

In breve

How do you calculate the yield on a CD?

A CD's yield is the interest it pays expressed as a percentage of the deposit, and there are three versions of it that get confused with one another. Total yield over the term is simply interest ÷ principal: a $50,000 CD at 4.10% for 18 months earns $3,171.34, a total yield of 6.343%. Annualised yield — the APY — restates that as a per-year figure so terms of different lengths can be compared, here 4.185%. After-tax yield subtracts what you owe, and for most savers it is the only one that describes reality: at a 24% marginal rate the same CD keeps $2,410.22, an after-tax APY of roughly 3.181%. The reason the distinction matters is that CD interest is taxed as ordinary income at your full marginal rate in the year it is credited, not at the long-term capital gains rate, so the headline yield on a CD is further from the yield you keep than on almost any other saving instrument.

Formula e metodo

Come viene calcolato

Yield = (A − P) / P

Total yield over the term. Annualising it gives the APY: (A/P)^(1/t) − 1.

A
Maturity value at the end of the term
P
Principal — your opening deposit
t
Term in years, used to annualise
APY
Annualised yield — the per-year rate the term-yield implies
τ
Your marginal tax rate; after-tax yield ≈ APY × (1 − τ)

Passo dopo passo

  1. 1

    Compute the maturity value A with A = P(1 + r/n)^(nt).

  2. 2

    Subtract the principal to get the interest the CD paid.

  3. 3

    Divide by the principal. That is the total yield across the whole term.

  4. 4

    Raise (A/P) to the power 1/t and subtract 1 to annualise it into an APY.

  5. 5

    Multiply the APY by (1 − your marginal tax rate) for the after-tax yield.

Guida

Come usare questo calcolatore

Quattro dati, risultati in tempo reale. Nulla da inviare e nessuna registrazione.
  1. 1

    Enter your deposit and rate

    Type the amount and the rate from the bank's rate sheet, setting the toggle to match whether they quoted an APY or a nominal APR.

  2. 2

    Set the exact term

    Yield is only comparable once it is annualised, and annualising needs the true term. A 13-month promotional CD is not a one-year CD.

  3. 3

    Read the effective APY

    The effective APY tile is the annualised yield. This is the figure to carry across to any other offer, whatever term it runs for.

  4. 4

    Apply your tax rate

    Multiply the APY by one minus your marginal rate. Compare that against a Treasury or municipal alternative, which are taxed differently.

Esempi

Esempi svolti

Numeri reali, calcolati fino in fondo — così può verificare il calcolatore con le sue cifre.

An 18-month CD, shown as term yield, annual yield and after-tax yield

Dati inseriti

Deposit
$50,000
Rate
4.10% nominal, compounded daily
Term
18 months
Marginal tax rate
24%

Risultato

Interest earned
$3,171.34
Total yield over the term
6.343%
Annualised yield (APY)
4.185%
After-tax yield
≈ 3.181%

The three figures describe the same CD and differ by more than three percentage points. Quoting the 6.343% makes the CD look better than a one-year account paying 4.30%; annualising shows it is slightly worse. Always compare annualised.

Two offers on different terms, made comparable by annualising

Dati inseriti

Offer A
$50,000, 7-month promo at 4.60% APY
Offer B
$50,000, 18-month at 4.10% nominal

Risultato

Offer A — interest
$1,329.08
Offer A — annualised yield
4.600%
Offer B — interest
$3,171.34
Offer B — annualised yield
4.185%

Offer B pays more than twice the dollars, and is the worse rate. That is the whole reason annualised yield exists. Offer A wins on yield but leaves you re-investing after seven months at whatever rate exists then — the trade-off the annualised figure cannot show you.

Metodologia

Accuratezza e ipotesi

Ogni calcolatore parte da alcune ipotesi. Ecco le nostre, dichiarate apertamente, così sa esattamente che cosa i numeri considerano e che cosa no.

  • The after-tax figure applies a single flat marginal rate to all the interest. Real returns straddle brackets, and state income tax is on top of federal.

  • Yield is calculated on the opening deposit. If you add to the CD, or if the bank pays interest out rather than compounding it, the yield on your average balance differs.

  • The rate is fixed and the CD is held to maturity. An early withdrawal penalty can push the realised yield below zero on a short holding period.

  • No fee is assumed. Maintenance fees on a CD are rare but not extinct, and they come straight off the yield.

Le convenzioni seguono la Regulation DD (12 CFR 1030), che disciplina il modo in cui gli istituti statunitensi comunicano l'APY sui conti di deposito. I depositi presso istituti assicurati sono protetti dalla FDIC fino a $250,000 per depositante, per banca e per categoria di titolarità.

Fonti primarie

Da dove arrivano queste regole

Le convenzioni seguite da questo calcolatore sono stabilite dalle autorità di vigilanza, non da noi. Ciascuna rimanda all'ente che l'ha emanata, così può verificarla invece di fidarsi della nostra parola.

Dettagli

Dettagli e regole principali

Informazioni rapide da conoscere prima di aprire o rinnovare un CD.

  • Yield and rate are not synonyms. The rate is what the bank applies; the yield is what you end up with after compounding, term length and — if you count it — tax.

  • CD interest is taxed as ordinary income in the year it is credited, reported on Form 1099-INT. On a multi-year CD you owe tax annually even though you cannot touch the money until maturity, which is a genuine cash-flow consideration on long terms.

  • Comparing a CD against a Treasury bill needs the tax treatment included. T-bill interest is exempt from state and local income tax, so in a high-tax state a Treasury yielding slightly less than a CD can keep more.

  • "High-yield CD" is a marketing phrase with no regulatory definition. It usually signals an online bank with no branch network, which is a real cost advantage — but check the minimum deposit and whether the rate is promotional.

  • Credit unions call the payout a dividend rather than interest and quote a dividend rate alongside an APY. The APY is calculated the same way and remains the figure to compare.

Come si collegano

Concetti e calcolatori correlati

Il CD Yield Calculator lavora insieme a questi strumenti correlati. Ciascuno copre per intero una parte del quadro dei CD.

Applicazioni

A chi serve questo calcolatore

  • Savers comparing terms that do not match

    A 7-month promo against an 18-month standard cannot be judged on interest earned. Annualise both here and the ranking often flips.

  • Anyone in a higher tax bracket

    At a 32% or 37% marginal rate the after-tax gap between a CD and a municipal bond fund narrows sharply. Knowing your after-tax yield is what makes that comparison honest.

  • Retirees living on interest

    Income planning runs on the yield you keep, not the yield advertised. Work from the after-tax figure and the monthly interest line when you build the budget.

Strumenti correlati

Tutti i calcolatori CD

Nove strumenti mirati che coprono l'intero quadro dei certificati di deposito.

FAQ

Domande frequenti sul CD Yield Calculator

Risposte dirette alle domande più frequenti su questo calcolo. Trova altro nel centro FAQ.

  • Divide the interest earned by the amount deposited. A $50,000 CD paying $3,171.34 has a total yield of 6.343% over its term. To compare it with any other CD, annualise it: (A/P)^(1/t) − 1, which for an 18-month term gives 4.185% per year.

Sicurezza e privacy

I suoi numeri non lasciano mai il browser

Ogni calcolo di questo sito viene eseguito in JavaScript sul suo dispositivo. Non c'è alcun account, nessuna chiamata al server e nessuna analisi collegata alle cifre che inserisce.

  • Formule secondo lo standard bancario

    Usa le stesse convenzioni di interesse composto e di APY adottate dalle banche secondo la Regulation DD.

  • 100% gratuito, senza accesso

    Nessuna registrazione, nessun muro di email, nessun abbonamento. Ogni calcolatore è pienamente utilizzabile fin dalla prima visita.

  • I suoi dati non lasciano mai il browser

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See the yield you actually keep

Term yield, annualised yield and the after-tax figure, computed on your own deposit in your own browser.

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