Cash, Term Deposits or Bonds? An Australian Investor's Guide at a 4.35% Cash Rate

The Reserve Bank of Australia’s decision to hold the cash rate at 4.35% on 11 August 2026 keeps income assets firmly in focus. After years when cash paid almost nothing, Australian savers can again earn meaningful nominal interest. But “high interest” is not the same as a high real, after-tax return.

The RBA said inflation remained too high and would not return to the middle of its 2–3% target until late 2027 or early 2028. That matters because every cash return must clear two hurdles: tax and loss of purchasing power.

This guide compares at-call savings, term deposits, government bonds, corporate bonds and bond funds. It is general information, not a recommendation.

Begin with the job the money must do

Investment selection starts with purpose and date.

• Emergency money: immediate access and capital stability.
• Known expense within one year: cash or a maturity aligned to the bill.
• Home deposit in two years: low volatility normally matters more than maximum return.
• Retirement spending over five years: a maturity ladder can reduce forced selling.
• Long-term wealth over 10 years: too much cash can create inflation and opportunity risk.

A product can be excellent in isolation and wrong for the goal. A ten-year bond is a poor emergency fund; an at-call account may be too conservative for a 20-year objective.

Compare the main options

“Capital stability” does not mean identical legal protection. Read the product disclosure and identify the actual issuer.

At-call savings accounts

Savings accounts suit money that must be available without market-price risk. The trade-off is that the bank can change the rate quickly.

Headline versus effective rate

Bonus accounts may require monthly deposits, card transactions, balance growth or age eligibility. Missing one condition can push the return to a low base rate.

Suppose $50,000 earns 5.00% if all conditions are met and 0.50% otherwise:

Operational simplicity can be worth more than an extra 0.10 percentage points, which is only $50 a year on $50,000 before tax.

Financial Claims Scheme

The Financial Claims Scheme generally protects eligible deposits up to $250,000 per account holder per authorised deposit-taking institution. Multiple brands can share one banking licence. A person with $200,000 under one brand and $150,000 under another brand owned by the same ADI may have only $250,000 covered in total, not $350,000.

Joint accounts and trusts involve specific rules. Verify the ADI on APRA’s register and the scheme rules rather than relying on a logo.

Term deposits

A term deposit locks a rate for a stated period, commonly from one month to five years. It is useful when certainty matters and the maturity date matches a known need.

The value of locking

For $100,000:

*Illustrative marginal rate including 2% Medicare levy; individual circumstances vary.

A 0.50-point difference is $500 before tax. Compare that benefit with access restrictions and the risk that the money is needed early.

Early withdrawal

Many term deposits require notice, often up to 31 days, and reduce interest on early withdrawal. Hardship provisions may apply. Keep emergency cash outside the term deposit.

Reinvestment risk

A six-month deposit may look attractive, but its replacement rate is unknown. Conversely, locking five years may underperform if rates rise. A ladder spreads the decision.

Example: divide $200,000 into four $50,000 deposits maturing in 3, 6, 9 and 12 months. As each matures, either spend it or reinvest at the end of the ladder. This improves regular access and reduces reliance on one rate date.

Australian government bonds

Australian Government Securities include Treasury Bonds with fixed coupons and Treasury Indexed Bonds whose capital value adjusts with inflation. They can be traded on market through eligible channels.

Yield is not the coupon

A bond’s coupon is fixed, but its price moves. If market yields rise, an existing low-coupon bond generally falls so a buyer receives a competitive yield. If yields fall, it generally rises.

Imagine a bond paying $4 annually per $100 face value. If comparable required yield rises, buyers will not usually pay $100 for only $4; the price falls. An investor holding to maturity still faces inflation and opportunity cost, while a seller crystallises the market price.

Duration risk in dollars

Duration approximates sensitivity. A bond fund with duration six years may fall roughly 6% if yields across its curve rise one percentage point, before allowing for convexity and income. A $100,000 holding could temporarily decline about $6,000. It may also rise if yields fall.

This is why “defensive” does not mean “never falls”. Bonds often diversify shares, but can lose value during rate shocks.

Nominal versus inflation-linked bonds

Nominal bonds offer known dollar coupons and principal at maturity, subject to terms. Inflation-linked bonds adjust their capital reference value using CPI methodology. They provide more direct inflation protection but their market price still changes with real yields and expectations.

Corporate bonds and credit

Corporate bonds typically offer a higher yield than Commonwealth bonds because investors accept default, downgrade and liquidity risk.

Credit spread matters

If a government bond yields 4.5% and a corporate bond of similar maturity yields 6.0%, the 1.5 percentage-point spread compensates for additional risks. It is not free income.

On $100,000, the extra gross return is $1,500 a year. A significant default or 10% price fall can erase years of that premium.

Secured does not mean guaranteed

Security ranks a creditor against assets but recovery can be delayed and incomplete. Subordinated bank notes rank behind senior creditors, and hybrids can have complex conversion or loss-absorption terms. ASIC’s Moneysmart guidance emphasises understanding issuer credit, maturity, liquidity and product structure.

Retail investors should be wary when a product is marketed as a “fixed-income alternative” without clearly explaining who owes the money and what happens on insolvency.

Bond funds and ETFs

Funds provide diversification and convenient trading but do not mature like an individual bond. The portfolio continually replaces securities, and the unit price moves daily.

Review:

• modified duration and maturity profile;
• government versus corporate allocation;
• credit ratings and unrated exposure;
• Australian versus global bonds;
• currency hedging;
• management fee and bid-ask spread;
• distribution history versus total return.

A 5% distribution does not guarantee a 5% return. Part may be offset by a falling unit price, and distributions can change.

Tax changes the comparison

Bank interest and bond coupons are generally assessable income. Capital gains and losses may arise when bonds or fund units are sold. Discount CGT treatment can apply to eligible assets held at least 12 months, but not all returns from fixed-income products are capital gains.

After-tax, after-inflation return

Assume a 5.0% interest return, a 39% marginal rate including Medicare levy, and 3.8% inflation:

• gross interest: 5.00%;
• after-tax interest: 3.05%;
• approximate real return: 3.05% minus 3.80% = -0.75%.

The exact real return uses division: 1.0305 / 1.038 minus 1, about -0.72%. The account balance grows, but purchasing power falls.

Tax-free thresholds, offsets, superannuation and entity structures change outcomes. Do not move personal savings into a company or trust merely for a lower headline tax rate; legal control, distribution, asset protection and anti-avoidance consequences matter.

Cash and bonds inside superannuation

Super funds may pay tax at concessional rates subject to the rules, so the after-tax yield can be higher than for the same person investing personally. Retirement-phase earnings may receive different treatment within legislated limits.

However, contribution caps, preservation rules, transfer-balance settings and fund fees apply. Money contributed may be inaccessible until a condition of release is met. Compare the whole strategy, not only the tax rate.

SMSF trustees must comply with the investment strategy, diversification, liquidity and arm’s-length rules. Holding most of an SMSF in one bank account can create concentration and inflation risk even when capital looks stable.

Retirees: build a spending ladder

Sequence risk arises when assets must be sold after market falls. A cash-and-bond ladder can fund near-term spending while growth assets recover.

For a retiree requiring $60,000 a year from investments, one illustrative structure is:

This is not a universal allocation. Age Pension means tests, home ownership, health costs and risk capacity can materially change it.

Home buyers: do not chase yield with the deposit

A deposit needed within 12–24 months usually cannot tolerate a 10% market fall. Match term-deposit maturities to likely settlement and preserve access for holding deposits, inspections and legal costs.

If an $800,000 purchase requires a $160,000 20% deposit plus $40,000 in duties and costs, protecting the $200,000 objective is more important than seeking a speculative extra return. State first-home concessions and federal guarantee schemes may alter the amount, but eligibility and price caps apply.

Common mistakes at high rates

Assuming today’s savings rate lasts

At-call rates can change immediately. Budget from a conservative rate and treat extra interest as variable.

Locking every dollar

An attractive five-year term is costly if emergency funds are trapped. Separate liquidity from investment money.

Ignoring product ownership

A platform account, cash ETF or mortgage fund may not be a bank deposit and may not have FCS protection.

Comparing yield without maturity and credit

A 7% subordinated note is not comparable with a 5% government-backed deposit simply because both display a percentage.

Forgetting tax instalments

Large interest income can increase an ATO assessment or PAYG instalments. Keep records and set aside cash.

A practical allocation process

1. List each goal, dollar amount and required date.
2. Keep emergency and tax money at call.
3. Verify ADI and FCS concentration.
4. Compare effective rates after conditions and fees.
5. Match maturities to spending dates.
6. Calculate after-tax and real returns.
7. Diversify issuer and duration risks where appropriate.
8. Review quarterly, not daily.

The central lesson

A 4.35% cash rate makes defensive assets more useful, but it does not remove trade-offs. Cash offers access, term deposits offer contractual certainty, and bonds offer diversification and potential price movement. The correct mix follows the job, timeframe, tax position and tolerance for loss.

For personal guidance on investment structure, retirement income and tax, compare Australian financial advisers and accountants on WealthWorks.