installment
Instalment payment structure for items sold via payment plans. Includes number of instalments and the per-period amount. Used for big-ticket items where instalment offerings are part of the value proposition.
Also known as: instalment , payment_plan
Channel support
| Channel | Status | Field name | Notes |
|---|---|---|---|
| Google Merchant Center | Optional | installment | — Docs → |
| Meta Commerce Manager | Optional | installment | — |
| TikTok Shop | Not supported | — | — |
| Pinterest Catalog | Not supported | — | — |
| Amazon | Not supported | — | — |
| Bing Merchant Center | Optional | installment | — |
Why it matters
Big-ticket items convert better when payment plans are visible upfront. Channels surface instalment options as 'or 12 payments of £X' tags in placements, which moves the perceived affordability of the item.
Big-ticket items convert at meaningfully higher rates when payment plans are visible upfront. Channels surface "or 12 payments of £X" tags in placements for items with installment populated, moving the perceived affordability of the item without changing the actual price.
The structured format `months:amount` encodes the plan. `12:99.99 GBP` is 12 monthly payments of £99.99 (total £1,199.88 — usually slightly above the cash price to account for interest or service fees). Total instalments × per-instalment amount should equal the item's total cost (after any interest or fees).
The distinction from third-party BNPL (Klarna, Affirm) which operate at checkout: this field surfaces first-party instalment offerings — your own store credit, in-house BNPL partnerships — in the catalog placement before users reach checkout. Third-party BNPL still appears at checkout via its own integration.
Format rules
-
Structured: months:amount (e.g. '12:99.99 GBP' = 12 payments of £99.99)
Applies to: Google Merchant Center, Meta Commerce Manager, Bing Merchant Center
-
Total instalments × per-instalment amount must equal the item's price (after interest)
Applies to: Google Merchant Center, Bing Merchant Center
Valid examples
12:99.99 GBP 12 monthly payments of £99.99
Common mistakes
interest free Marketing text — use the structured format
Related fields
price The product's standard selling price including the currency code. The single field every shopping channel reads first — wrong prices, wrong currency, or mismatches against the landing page break delivery outright.
Read moresubscription_cost The recurring cost for subscription products. Separate from price (the upfront cost) — subscription_cost makes the recurring nature explicit and surfaces in Shopping placements as 'X/month'.
Read moreFAQ
Is this the same as Klarna or Affirm?
Conceptually similar but separate. Klarna/Affirm offer their own payment plans at checkout. This field surfaces your own first-party instalment offerings (in-house store credit, BNPL partnerships) in catalog placements.
Last reviewed: 26 May 2026
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