Transfer Balance Cap Calculator Australia
Work out your transfer balance account, how much transfer balance cap space is left, and the excess tax the ATO would charge if you go over.

What it does
The Transfer Balance Cap Calculator works out how much of your superannuation you can still move into the tax-free retirement phase, whether you are over the cap, and what the ATO would require you to commute if you are.
Data sources & parameters
The figures below drive this calculator. We keep them aligned with the latest official guidance, and each result recalculates automatically whenever a value changes.
| Parameter | Value | Source | Last updated |
|---|---|---|---|
| General transfer balance cap | 2,100,000 | ato.gov.au | Effective 2026-07-01Corrected 2026-08-27: 2000000 to 2100000 (official-verified). Source link replaced (old URL 404); audit 2026-09-23 |
| Account-based pension minimum annual drawdown percentage by age band: [age_from, age_to, rate] | Rate schedule | ato.gov.au | Effective 2026-07-01Values re-verified against ATO Table 11 (2023-24 onwards); old source_ref 404s after the ATO site restructure. |
We always strive to use the latest data for every variable so our results and reports are as accurate as possible. Even so, errors are possible — you should not rely on this tool or its report alone, and we accept no liability for any decision made based on it.
The formula
Excess = max(0, credits - debits - personal cap); notional earnings = excess x rate x days / 365; excess tax = notional earnings x excess tax rate
How it works
It adds the amounts credited to your transfer balance account, subtracts commutations, compares the result with your personal cap, then applies the notional earnings rate and the excess transfer balance tax rate you enter to any excess.
Where it is used
- Checking how much cap space is left before starting a second pension
- Sizing an excess transfer balance and the commutation the ATO would require
- Seeing how much super would have to stay in accumulation phase
Worked example
Moving A$1,600,000.00 into retirement phase at age 66 uses … of a … cap, leaving … of space. … of the A$2,000,000.00 balance stays in accumulation, and the minimum pension payment is ….
What the transfer balance cap calculator does
The transfer balance cap is the lifetime limit on how much superannuation any one person can move into the retirement phase, and this calculator shows exactly where you sit against it. Enter the amounts you have moved into pensions, any commutations back to accumulation, and your age, and the tool reports your transfer balance account, the space you still have, and whether you have an excess.
If there is an excess it goes further. It works out the notional earnings the ATO adds while the excess is outstanding, the excess transfer balance tax on those earnings, and the total commutation you would be required to make. It also shows how much of your balance would have to stay in accumulation phase and what the minimum annual pension payment is on the part that remains in retirement phase.
How the account is measured
The transfer balance account is a running notional ledger, not a real bank account. Credits are added when value moves into retirement phase; debits are subtracted when value moves back out. The balance of that ledger, not the market value of your pension, is what is compared with the cap.
Credits include starting an account based pension, the value of a pension you already held when the system began, and defined benefit income streams valued by the special formula in the legislation. Debits include full and partial commutations, structured settlement contributions and certain losses from fraud or bankruptcy.
The crucial feature is that both sides are measured on the day the transaction happens. Once a pension has started, everything that happens afterwards is invisible to the ledger. Strong investment returns do not create a credit. Pension payments do not create a debit. A pension account that grows well past the cap after it started is entirely compliant, and one that halves in a market fall does not free any room. This is why a person can hold far more than the cap in retirement phase over time and never breach it.
Personal cap versus general cap
Two different numbers get called the cap. The general cap is the figure published for the year and it is what applies to somebody starting their first retirement phase income stream now. The personal cap is what actually binds you, and for anyone who already had a pension it is lower than the general cap.
Proportional indexation is the reason. When the general cap rises, you only get a share of the increase, and that share is the proportion of your cap that was still unused at the time. Someone who used every dollar of their cap on day one gets no indexation at all and keeps their original personal cap forever. Someone who used half gets half of each subsequent increase. Because the calculation depends on the highest balance your account has ever reached, not the balance today, the only reliable source for your figure is ATO online services. The calculator therefore lets you type your personal cap in directly, and falls back to the general cap when you leave that field at zero.
What happens when you go over
Exceeding the cap is not a penalty offence, it is a process. The ATO issues an excess transfer balance determination setting out the excess and the notional earnings that have accrued on it. Notional earnings run daily from the date of the breach at the general interest charge rate, and they compound, so a breach discovered late costs considerably more than one fixed straight away.
You then have to commute the excess plus the notional earnings out of retirement phase. The money can either move back to accumulation, where it stays in super but its earnings become taxable, or be withdrawn entirely if you have met a condition of release. On top of the commutation, excess transfer balance tax is charged on the notional earnings, at 15 per cent for a first breach and 30 per cent for a second or later one.
The tax is on the earnings only, never on the excess itself. That is a common misreading and it makes the amount look far more frightening than it is. A modest excess corrected within a few weeks usually produces a bill in the hundreds of dollars, not the tens of thousands.
Reading the results
The headline figure is the cap space you still have. That is the amount you could move into a new pension today without a determination, and it is the number to check before commencing a second income stream, adding a downsizer contribution to a pension, or rolling a defined benefit entitlement.
Underneath it, the share of the cap used tells you how much proportional indexation you can expect in future. A person at 76 per cent of the cap keeps 24 per cent of every future increase. Somebody at 100 per cent gets nothing more, which is a real argument for leaving a small slice unused when you are close to the limit and expect the cap to keep rising.
The accumulation balance figure is the practical consequence of a high total super balance. Anything above the cap is not lost, it just sits in a differently taxed environment, and for many people that is still better than holding the same money outside super.
Points the calculator deliberately simplifies
The tool models the mainstream case of one or more account based pensions. Several situations need specialist treatment: capped defined benefit income streams use a formula that converts an income stream into a notional value and can trigger extra assessable income rather than an excess, reversionary pensions received on the death of a spouse are credited twelve months after the death rather than immediately, and child death benefit pensions run against a separate modified cap.
Because notional earnings compound daily against a rate that changes each quarter, the simple pro rata calculation here will not match an ATO determination to the dollar. It is the right size, not the exact figure.
This tool gives an estimate to help you plan and is not personal financial, superannuation or tax advice. Check your own transfer balance account in ATO online services and speak to a licensed adviser before acting on the result.
About This Tool: Transfer Balance Cap
Transfer balance cap: use this tool to get an instant, accurate estimate. The figures follow official ATO guidance and every rate and threshold is kept up to date for 2026. Adjust the inputs above to match your situation, or browse all our calculators to plan your next step.
Tax year 2026


