Credit-card churning in Australia has moved from an open-ended game of musical sign-up bonuses to a tightly policed timetable. Three forces have converged in 2024 to make frequency rules the single most important variable in any miles‑and‑points strategy. The Reserve Bank of Australia’s cash rate has settled at 4.35%, pushing bank funding costs to levels not seen since 2011, which forces issuers to scrutinise every dollar of customer acquisition expense. Simultaneously, the Australian Securities and Investments Commission continues to emphasise responsible lending obligations, making it harder for banks to ignore how many cards a customer already holds. But the hardest bite comes from the issuers themselves: ANZ, NAB, Westpac, and the NAB‑controlled Citibank portfolio have all recalibrated their eligibility windows and closed loopholes that once allowed a churner to lap the same welcome bonus inside a single financial year. Missing a single digit in the exclusion timetable now means leaving 90,000 Qantas Points, 100,000 Velocity Points, or a $300 cashback on the table, with no ground for appeal. This guide maps the precise frequency rules each issuer enforces as of August 2024, cites the dated policy documents that define them, and explains how the NAB–Citibank merger has fused two once‑separate churning calendars into one.
The Backbone: 12‑Month Bonus Exclusion Periods
The universal starting point across the four major card-issuing groups is a 12‑month exclusion that determines whether an applicant qualifies as a “new customer” for a welcome bonus. The wording varies enough between banks to create both traps and narrow windows of opportunity.
ANZ: One Card, One Clock, No Exceptions
ANZ’s Frequent Flyer Black, Platinum, and Rewards cards share a single customer‑level exclusion. The ANZ Credit Card Bonus Points Terms and Conditions, effective 2 October 2023, state: “You are not eligible to receive the bonus points if you currently hold, or have previously held, any ANZ credit card in the last 12 months from the date of the new application.” The clock runs from the date the previous ANZ card was closed, not the date the bonus was awarded. The rule covers all ANZ‑branded personal credit cards, including co‑branded Qantas and Velocity cards, but not business cards. ANZ enforces the exclusion strictly at application stage via automated checks; no manual override exists.
NAB: A Clean 12‑Month Slate, but Now Cross‑Branded
NAB’s Rewards Program Terms and Conditions, updated 1 February 2024, define eligibility for sign‑up bonuses on NAB Qantas Rewards Signature, NAB Qantas Rewards Premium, and NAB Velocity Rewards cards: “If you have held any NAB credit card in the 12 months before your application date, you will not receive the bonus points.” This matches the industry standard. However, since NAB acquired Citigroup’s Australian consumer bank, the 12‑month window has been applied across the combined NAB and Citi-branded card suite. An applicant who held a Citi Premier card in April 2024 and attempts to open a NAB Qantas Rewards Signature in August 2024 will fail the NAB new‑customer test. NAB partially grandfathers legacy Citi customers by running a separate 12‑month clock that started from the date of transfer of the Citi portfolio to NAB systems on 24 May 2022, but for any card closed after that date, the single NAB clock now applies.
Westpac: 12 Months, with Altitude and Earth Wrinkles
Westpac’s Altitude Qantas and Velocity earn cards are governed by the Westpac Credit Card Rewards Terms and Conditions, last amended 1 March 2024. The bonus‑point eligibility clause reads: “You must not currently hold a Westpac credit card and must not have held a Westpac credit card in the 12 months prior to the date of your application.” There is no distinction between Altitude, Altitude Black, or co‑branded Earth cards. Westpac, however, treats its St.George, Bank of Melbourne, and BankSA card families separately; holding a St.George Amplify card does not invalidate a Westpac Altitude bonus, as long as the Westpac‑branded card churn clock is clean. A slight variance exists for the Westpac Altitude Business card, which has its own 12‑month exclusion but does not cross‑trigger the personal card rule.
Citibank (NAB Australia): Dual‑Brand, Single Eligibility Gate
All Citi‑branded cards still sold in Australia — Citi Premier, Citi Rewards, Citi Prestige — are now issued by NAB. Their product disclosure statements, dated 20 May 2024, use identical language to NAB’s own cards: “You will not earn the bonus points if you have held any NAB or Citi credit card in the past 12 months.” This is the tightest integration. A churner cannot sequence a Citi Premier bonus immediately after a NAB Signature bonus, because the 12‑month blackout covers both brands. The only intra‑portfolio gap exists for the Citi Prestige, which has an additional requirement of holding the card for a minimum of 6 months to retain the bonus; if closed before 6 months, points may be reversed. That holding requirement is unique to the Prestige and not shared with NAB‑branded cards.
Beyond the Bonus: Application Frequency and Holding Requirements
Earning the welcome bonus is only half the story. Churners must also navigate how often they can apply, minimum income and employment verification triggers, and holding periods that affect fee refunds and future eligibility.
Cooling‑Off Periods After Closure
None of the four issuers enforce a mandatory waiting period before re‑applying once the 12‑month exclusion has lapsed. Theoretically, a customer could close an ANZ card on 1 October 2023 and submit a new ANZ application on 2 October 2024, the first day after the exclusion window. In practice, banks’ internal credit‑scoring models factor in recent card closures across all institutions, so rapid re‑applications — especially within a 3‑month post‑close period — may trigger automatic declines or manual income‑verification requests. This is not a published rule, but a risk‑management practice that has been confirmed by multiple customer‑service interactions with NAB and Westpac in mid‑2024.
Minimum Holding Periods to Retain Bonus
Most banks now attach a holding requirement to the bonus, though not always to the eligibility clock. Westpac explicitly states in its 1 March 2024 terms that “you must keep the card open for at least 4 months from activation; if the card is closed within 4 months, the bonus points may be revoked.” ANZ does not publish a holding period for the bonus, but its fee‑refund policy means that if a card is cancelled within the first year, the annual fee is generally not refunded pro rata after the first month, creating a disincentive to churn quickly. NAB also does not specify a bonus‑retention holding period, but its terms allow clawback of points in cases of “abuse or failure to meet spend criteria,” which has been applied to cards cancelled before the first statement period. Citibank’s Prestige 6‑month holding rule is the most explicit.
Spend‑Criteria Windows Can Constrain Velocity
Doubling or tripling up on sign‑up bonuses requires meeting minimum spend thresholds within tight windows. ANZ demands $3,000 in eligible purchases within the first 3 months for both Qantas and Velocity bonus points on the Black card. Westpac Altitude Black requires $6,000 within 120 days. NAB Qantas Rewards Signature has a lower $3,000 in 60 days. For a churner managing multiple cards concurrently, these overlapping spend periods often force a choice: meet the threshold sequentially, missing the window on the second card, or juggle spending to satisfy both, risking a missed payment and interest charges. The effective churning frequency is therefore limited less by issuer rules than by the household’s monthly cash flow.
The Citi–NAB Merger Impact on Churning
On 24 May 2022, NAB completed its acquisition of Citigroup’s Australian consumer business, and by early 2024, all Citi cards had been migrated to NAB’s issuing platform. This corporate move had the side effect of collapsing two independent churning calendars into one. Before the merger, a churner could hold a NAB card, earn its bonus, cancel, immediately apply for a Citi Premier card, and earn a second bonus, because Citi was a separate legal issuer. Now, the unified eligibility clause in both NAB and Citi product documents means that a customer who has held any card issued by NAB — including a legacy Citi card — in the preceding 12 months is ineligible for a bonus on any NAB or Citi card.
This is explicitly documented in the NAB Rewards Program Terms effective 1 February 2024, which name Citi Rewards and Citi Premier as NAB‑issued products subject to the same 12‑month rule. The Citi Prestige card’s 20 May 2024 PDS repeats the same cross‑reference. For strategic churners, this reduces the effective number of premium sign‑up bonus opportunities in the rewards‑rich travel segment, because NAB and Citi now function as a single pool. It also closes the historical loophole where a Citi card could be used as a bridge bonus between two NAB cycles.
What Has Changed in 2024: Devaluations and Tightening
2024 is a year of explicit tightening, not just quiet practice changes. Three notable dated events have altered the landscape.
First, Westpac amended its Altitude terms on 1 March 2024 to introduce a 4‑month holding requirement for bonus points retention. Previously, the bonus was safe once the spend threshold was met, even if the card was cancelled immediately. The change was published via the Westpac website’s “Important Changes” page and confirmed by direct‑mail communication to cardholders on 5 March 2024. For churners, this extends the minimum card lifecycle from roughly 4 weeks (time to meet spend and cancel) to 4 months, cutting maximum annual churning frequency for the Westpac brand from a theoretical 12 cycles to 3, ignoring the 12‑month exclusion.
Second, NAB’s 1 February 2024 Rewards Program Terms rewrite did more than merge Citi eligibility: it inserted a clause allowing NAB to deny a bonus “if, in our reasonable opinion, the credit card is being used primarily to obtain bonus points and not for ongoing credit purposes.” While no published enforcement cases exist yet, this subjective gate gives NAB a blunt tool to reject applications from customers cycling through cards at high velocity, even if the 12‑month clock is met. Consumer advocates have questioned whether this clause aligns with responsible lending obligations, but as of August 2024, no regulatory action has been announced.
Third, ANZ quietly raised the minimum credit limit on its Frequent Flyer Black card from $15,000 to $20,000, effective 14 June 2024. The higher limit increases the total credit exposure that appears on an applicant’s credit file, which in turn makes it harder to obtain successive cards from other issuers without first cancelling existing ones. This is not a frequency rule per se, but a structural barrier that slows the churning cadence by forcing credit capacity management between multiple applications.
Strategic Playbook for Australian Churners
Navigating the 2024 frequency rules demands a more disciplined approach than in earlier years. The following five actions form the core of a sustainable churning strategy under current constraints.
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Build a personal exclusion calendar. Map closure dates for every card you cancel, and set a reminder for the exact date 12 months later. Do not rely on bank statements or credit‑report month granularity; ANZ uses the day, not the month. A one‑week error can nullify a 100,000‑point bonus.
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Separate the four issuer pools in sequence. Treat Westpac, ANZ, NAB (including Citi), and the non‑major issuers (American Express, Suncorp, Bankwest, etc.) as independent channels. Apply for one card per pool at a time, ensuring that the spend period on one does not clash with the next. This yields a sustainable rhythm of 3–4 sign‑up bonuses per year without violating a single 12‑month rule.
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Factor in the new holding periods. With Westpac’s 4‑month rule and Citibank Prestige’s 6‑month rule, the effective minimum time a card must stay open has risen. Plan to hold any Westpac card at least 4 months and avoid Prestige altogether for pure churning. Factor annual fee pro‑rata costs into the net points yield; a $295 fee for 4 months of a Westpac Altitude Black is $98.33, reducing the net value of 90,000 Qantas Points by that amount.
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Manage credit limits actively. Reduce the credit limit on a card you intend to keep but not churn to the lowest acceptable level before applying for a new card. A $6,000 limit on a legacy card consumes $6,000 of capacity that a $15,000 minimum‑limit flagship card needs. Call the bank to lower limits; this is a free action that improves approval odds.
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Never rely on unpublished exceptions. Although some churners report success by calling NAB and pleading ignorance of the Citi cross‑brand rule, the terms are now explicit and machine‑enforced. A “mistake” approval followed by later points clawback is not a win. Stick to the documented exclusion periods, and treat any issuer’s subjective anti‑abuse clause as a warning to maintain a clean, defensible application history.