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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)
| Liquidity | Maturity‑centric (penalty if early) | Daily transfers/flex | Buy/redeem on business days |
| Coverage | Depositor protection (check limits) | Depends on institution/product | Fund structure; see prospectus |
| Yield form | Agreed interest | Managed yield/dividend | Rate‑driven ultra‑short income |
| Tax/fees | Withholding; early penalty rules | Withholding; fee structure | Fund fees/taxation rules |
| Best for | 1–3 months+ | Salary/expenses hub | Days 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)
- Write horizon (days/weeks/months)
- Confirm coverage/protection (by product/institution)
- Compare net yields for the same horizon
- Check fees, transfer/redeem cut‑offs
- Read early‑withdrawal rules/penalties
- Set maturity & auto‑rollover OFF if needed
- 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
Info only. This is not financial advice; details differ by market and account.
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