연정이의 40대 경제학

3Cash Parking in 10 Minutes: Term Deposits vs CMA vs MMF (2025)

pyj191 2025. 8. 12. 09:52
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Cash Parking in 10 Minutes: Term Deposits vs CMA vs MMF (2025)

Short version: match horizon · liquidity · coverage. Days→MMF, weeks→CMA, 1–3 months+→term deposits. Always compare after‑tax yield and total costs (fees + early‑withdrawal penalties).

  • Horizon: days→MMF, weeks→CMA, months→deposit
  • Coverage: check depositor protection / product coverage
  • Total: compare net (after tax/fees/penalties), not just headline rate


Quick comparison (concept)

LiquidityMaturity‑centric (penalty if early)Daily transfers/flexBuy/redeem on business days
CoverageDepositor protection (check limits)Depends on institution/productFund structure; see prospectus
Yield formAgreed interestManaged yield/dividendRate‑driven ultra‑short income
Tax/feesWithholding; early penalty rulesWithholding; fee structureFund fees/taxation rules
Best for1–3 months+Salary/expenses hubDays to a few weeks

Scenario picks (examples)

  • A. Big payment in 2 weeks → Park in MMF, redeem 2–3 business days before
  • B. Monthly bill hub → Use CMA (auto in/out, alerts), make it your cash hub
  • C. No withdrawal for 2–3 months → Term deposit (turn off auto‑rollover)

Note: actual rates, taxation and fees vary by country, institution, and account type. Always check official documents.

Simple formulas (remember these)

  • Interest (gross) = Principal × annual rate × (months/12)
  • Net = Gross − withholding tax
  • Real take‑home = Net − fees − early‑withdrawal loss

Today’s checklist (7 items)

  1. Write horizon (days/weeks/months)
  2. Confirm coverage/protection (by product/institution)
  3. Compare net yields for the same horizon
  4. Check fees, transfer/redeem cut‑offs
  5. Read early‑withdrawal rules/penalties
  6. Set maturity & auto‑rollover OFF if needed
  7. Add calendar alerts (maturity & D‑3 for big payments)

Risks (don’t skip)

  • Rate moves: falling short‑term rates → lower expected yield
  • Liquidity: business‑day cut‑offs; redemption delays possible
  • Tax/fees: withholding, fund/transaction fees matter
  • Early exit: penalty or reduced interest on deposits

Weekly wallet tips · 1‑min read

Best pick + 3 new posts + next‑week checklist

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Info only. This is not financial advice; details differ by market and account.

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