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Facebook Ads Cost Per Purchase Benchmarks for Marketplaces in New Zealand

See how your purchase costs compare. Explore ecommerce conversion cost benchmarks by industry, region, and campaign type

Cost Per Purchase for Marketplaces in New Zealand

October 2024 - October 2025

Insights

Detailed observation of presented data

Facebook Ads cost-per-purchase benchmarks: Marketplaces in New Zealand vs. global

This analysis looks at cost-per-purchase trends for industry Marketplaces and target country New Zealand compared to the global trend. The analysis is based on $3B worth of advertising data from our dataset, which provides strong directional benchmarks.

Key takeaways

  • Overall level: New Zealand Marketplaces averaged 33.42 cost-per-purchase across Oct 2024–Aug 2025, about 32% below the global baseline (49.24).
  • Volatility: New Zealand showed high month-to-month swings (average absolute change 39.94) versus a very stable global baseline (2.24).
  • Seasonality: The global series is steady with slightly higher costs around Q4–Q1, while New Zealand shows atypical volatility in Q4 (very low in November, spike in October) and a late surge in August.
  • Finish vs. start: New Zealand fell 50.3% from October 2024 to August 2025; the baseline dipped 2.1% over the same span.

About the data

  • Metric: cost-per-purchase
  • Industry: Marketplaces
  • Country: New Zealand
  • Period compared: Oct 2024–Aug 2025 (month-level medians)

New Zealand Marketplaces: trend overview

  • Average: 33.42; median: 8.42 (typical month much lower than the average due to a few spikes).
  • Highs and lows:
  • High: 119.73 (Jan 2025); next highest 115.59 (Oct 2024).
  • Low: 3.70 (Mar 2025).
  • Range: 116.03.
  • Volatility: Large swings, with the biggest drop Oct→Nov (-111.24) and the largest rise Dec→Jan (+89.28). A notable jump also occurred Jul→Aug (+50.51).
  • Seasonal shape:
  • Q4 (Oct–Dec): 50.13 on average, driven by an October spike and a very low November.
  • Q1 (Jan–Mar): 44.01 on average; January spiked but February–March fell to single digits.
  • Mid-year (Apr–Jul): 6.93 on average, a prolonged low-cost stretch.
  • August: rose sharply to 57.43.
  • First to last month: down 50.3% (Oct 2024 to Aug 2025).

Comparison with the global baseline

  • Baseline averages and stability:
  • Average: 49.24; median: 50.97.
  • High: 53.89 (Feb 2025); low: 43.19 (Nov 2024).
  • Volatility: modest (average month-to-month change 2.24).
  • Change Oct→Aug: -2.1%.
  • Relative positioning by month (New Zealand vs. baseline):
  • Above market: Oct (+~148%), Jan (+~129%), Aug (+~26%).
  • Below average: all other months, typically 41%–93% lower.
  • Seasonal contrasts:
  • Q4 averages: New Zealand 50.13 vs. baseline 47.13 (New Zealand broadly in line but far more variable).
  • Feb–Jul: New Zealand averaged 6.67 vs. 50.37 globally (about 87% lower), indicating sustained mid-year softness in New Zealand while the global trend remained steady.

What this means for benchmarking

New Zealand Marketplaces cost-per-purchase has been highly variable, with short-lived spikes and prolonged low-cost periods, while the global trend stayed steady and moderately elevated in Q4–Q1. On balance, New Zealand sat below average most months, with brief episodes above market.

Understanding cost-per-purchase benchmarks on Facebook Ads in industry Marketplaces and New Zealand helps advertisers make more efficient budget and creative choices.

Understanding the Data

Insights & analysis of Facebook advertising costs

Facebook advertising costs vary based on many factors including industry, target audience, ad placement, and campaign objectives. In the Marketplaces industry, Facebook ad costs can be influenced by seasonal trends and market competition. For campaigns targeting New Zealand, advertisers should consider local market factors and user behavior. Different campaign objectives lead to varying costs based on how Facebook optimizes for your specific goals. The data shown represents median values across multiple campaigns, and individual results may vary based on ad quality, audience targeting, and campaign optimization.

Why we use median instead of average

We use the median CTR because the underlying distribution of click-through rates is highly skewed, with a small share of campaigns achieving extremely high CTRs. These outliers can inflate a simple average, making it less representative of what most advertisers actually experience. By using the median—which sits at the midpoint of all campaigns—we provide a more rigorous and realistic benchmark that reflects the true underlying data model and helps you set attainable performance expectations.

Key Factors Affecting Facebook Ad Costs

  • Competition within your selected industry and audience demographics
  • Ad quality and relevance score – higher quality ads can lower costs
  • Campaign objective and bid strategy
  • Timing and seasonality – costs often increase during holiday periods
  • Ad placement (News Feed, Instagram, Audience Network, etc.)

Note: This data represents industry median values and benchmarks. Your actual costs may vary based on specific targeting, ad creative quality, and campaign optimization.

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The data behind the benchmarks

All data is sourced from over $3B in Facebook ad spend, collected across thousands of ad accounts that use Superads daily to analyze and improve their campaigns. Every data point is fully anonymized and aggregated—no individual advertiser is ever exposed.

This dataset updates frequently as new ad data flows in. It will only get bigger and better.

New Zealand Advertising Landscape

National Holidays

Jan 1New Year's Day
Jan 2Day after New Year's Day
Feb 6Waitangi Day
Apr 18Good Friday
Apr 21Easter Monday
Apr 25ANZAC Day
Jun 2King's Birthday
Jun 20Matariki
Oct 27Labour Day
Dec 25Christmas Day
Dec 26Boxing Day

Key Shopping Season

Late November–early December (Black Friday/Cyber Monday), Christmas season (Boxing Day sales), Mid‑year promotions (Matariki in June), Back-to-school (late January/early February)

Potential Advertising Impact

CPM and CPC might rise around Waitangi Day and ANZAC Day as public events increase media consumption. Matariki is new public holiday with growing awareness—advertising may see elevated competition. Late November–December Black Friday/Cyber Monday could drive ad costs significantly. Regional anniversary holidays may cause local inventory shifts.

What's a healthy cost per purchase for ecommerce brands?

It depends on your product price and margins. Most brands aim for $10 to $50. For higher-ticket products, a higher CPA may be acceptable as long as you're maintaining a strong return on ad spend.

How does product price impact CPA benchmarks?

Higher-priced products typically have a higher CPA because people take longer to convert. That's not necessarily a problem if your margin can support it. You should measure CPA in context with AOV and LTV.

Why are my purchase costs going up despite stable ROAS?

Your AOV may be increasing, which helps maintain ROAS even if CPA rises. You could also be facing higher CPMs, lower conversion rates, or creative fatigue.

Should I use manual bidding to control CPA more effectively?

Manual bidding can help if you're struggling to stay within target CPA. It's best used by experienced advertisers who can monitor performance and adjust regularly. It gives more control, but also requires more effort.

How do I scale spend without letting CPA skyrocket?

Increase budget gradually, rotate creative often, and avoid overlapping audiences. Scaling too quickly can lead to audience saturation and rising CPAs.