> ## Documentation Index > Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt > Use this file to discover all available pages before exploring further. # Avg Shipping Cost, Royal Mail > Avg Shipping Cost for Royal Mail stores. Tracked live in Vortex IQ Nerve Centre. How to read it, why it matters, and how to act on it. **Metrics type:** [Key Metrics](/nerve-centre/overview#metrics-types-explained) • **Category:** [Shipping & Courier](/nerve-centre/connectors#connectors-by-type) ## At a glance > Average billed cost per Royal Mail consignment, including base postage + fuel surcharges + Saturday surcharge + insurance / declared-value loading + remote-area surcharge. The unit-economics number that pairs with [OTD Rate](/nerve-centre/kpi-cards/royal-mail/on-time-delivery-rate) to make the cost-vs-reliability trade. | | | | ------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **What it counts** | `SUM(consignment_cost) / COUNT(consignments)` over the period. Each shipment is weighted equally; the figure is post-discount net of negotiated rate cards. | | **API endpoint** | `GET /shipping/v3/shipments` (Shipping API v3) for shipment-level `chargeAmount`, supplemented by `GET /accounts/v1/billing/invoices` (Royal Mail Business Account billing API) for the authoritative monthly invoice reconciliation. | | **Service-tier scope** | **All Royal Mail services pooled by default** (Tracked 24, Tracked 48, Special Delivery, 1st / 2nd class, International Tracked, International Standard / Economy). Per-service breakdown is on [Cost by Zone](/nerve-centre/kpi-cards/royal-mail/cost-by-zone). | | **Tracked vs untracked split** | Tracked is more expensive per consignment (Tracked 48 \~£3.40, Tracked 24 \~£4.85, untracked 1st class \~£1.45, untracked 2nd class \~£1.05). The pool average shifts meaningfully with mix; a 10-point swing in tracked share moves the headline by 30 to 50 pence. | | **Return-leg inclusion** | **Outbound only.** Tracked Returns are a separate cost line on the Royal Mail bill (the merchant pays per consumed return label). Reported separately on [Cost Trend](/nerve-centre/kpi-cards/royal-mail/cost-per-shipment-trend). | | **Geographic scope** | UK domestic + international. International consignments are in destination-country lanes priced separately; international averages 3 to 8x UK domestic per consignment. | | **Surcharges included** | Fuel (varies monthly with diesel index), Saturday (£0.30 to £0.50), remote-area (Highlands & Islands +£1.00 to £2.50), oversize / heavy (+£1.00 per kg above standard), declared-value loading. | | **Currency** | Stored in GBP (Royal Mail bills in GBP only). Multi-currency stores get GBP regardless. | | **Time window** | `30D vsP` (rolling 30 days, period-over-period). Daily readings reflect mix-shift, not cost-card change; use the trend view for unit-cost-card change detection. | | **Alert trigger** | `+10% vsP` (avg cost up 10 percent vs prior 30 days). Royal Mail does an annual rate-card uplift in April (typically 2 to 5 percent); fuel surcharge changes monthly; mix-shift can move the number quickly without any rate change. | | **Roles** | owner, finance, operations | ## Calculation Calculated automatically from your Royal Mail data. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading. ## Worked example Same UK DTC homewares brand, 60 percent Royal Mail Tracked 48 / 40 percent Evri ParcelShop. Reading at 09:00 BST on 12 Mar 26, trailing 30 days. Royal Mail leg cost breakdown: | Service | Consignments | Avg cost / parcel | Total bill | | -------------------------- | ------------ | ----------------- | ----------- | | Tracked 48 (TPN48) | 9,840 | £3.42 | £33,653 | | Tracked 24 (TPN24) | 1,610 | £4.85 | £7,809 | | Special Delivery 1pm (SD1) | 280 | £8.10 | £2,268 | | **All RM (this card)** | **11,730** | **£3.71** | **£43,517** | Evri leg for comparison: 7,820 ParcelShop consignments at £2.10 per parcel = £16,422 spent. Combined carrier spend: £59,939 / 19,550 parcels = £3.07 average. The card reads **£3.71** for the Royal Mail leg only; the all-carrier blended is £3.07. Five things to notice: 1. **The cost-vs-reliability trade is real and quantifiable.** Royal Mail Tracked 48 at £3.42 delivers 96.5 percent OTD; Evri ParcelShop at £2.10 delivers 92.5 percent OTD. The merchant accepts a 4-point OTD hit on the Evri half in exchange for a £1.32 / parcel saving (39 percent). For 7,820 Evri consignments that is £10,326 of monthly saving against an additional \~310 late deliveries / month. CFO judgement, not a card recommendation. 2. **Special Delivery 1pm is 2.4x the Tracked 48 cost** but delivers 99 percent OTD. For high-value or fragile shipments, the spread is justified by claim-recovery economics; for everyday parcels it is overkill. 3. **The "rate suddenly degraded" debug case for cost.** Royal Mail's annual rate-card uplift kicks in 1 April each year, typically a 2 to 4 percent rise. A merchant whose Avg Cost climbs 4 percent on 1 April vs the prior 30 days is seeing the rate-card change, not a mix-shift. A merchant whose cost climbs 8 to 12 percent is also seeing surcharge or zone-mix change. During the CWU strikes of 2022 to 2023 some merchants emergency-uplifted to Special Delivery to maintain service, the avg cost spiked 30 to 50 percent for the affected weeks. 4. **Fuel surcharge moves monthly.** Royal Mail publishes the next month's surcharge mid-month based on the diesel-price index. A 5p / litre move in diesel translates to roughly 1.5 to 2 percent on the avg cost number. Tracked separately on [Cost Trend](/nerve-centre/kpi-cards/royal-mail/cost-per-shipment-trend). 5. **The £0.30 difference between £3.71 (this card) and £3.42 (Tracked 48 alone)** is mix-effect, the Tracked 24 and Special Delivery shares pull the average up. If the merchant rebalances toward more Tracked 48, headline avg cost drops without any negotiation. ## Sibling cards merchants should reference together Avg shipping cost is the unit-economics dial. Pair it with these to make spend decisions: | Card | Why pair it with Avg Shipping Cost | What the combination tells you | | ------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------- | | [On-Time Delivery Rate](/nerve-centre/kpi-cards/royal-mail/on-time-delivery-rate) | The reliability half of the cost-vs-reliability trade. | Cost-up + OTD-flat = bad value; cost-up + OTD-up = paying for premium tier; cost-down + OTD-down = at the edge of acceptable trade. | | [Cost Per Shipment Trend](/nerve-centre/kpi-cards/royal-mail/cost-per-shipment-trend) | The 90-day shape of the same metric. | Step-changes flag rate-card uplifts (April annually) or surcharge moves (monthly fuel index). | | [Cost by Zone](/nerve-centre/kpi-cards/royal-mail/cost-by-zone) | Splits the avg by destination zone. | Highlands & Islands shipments cost 30 to 60 percent more than mainland; if your customer mix shifts north, your avg cost shifts up without any rate change. | | [Shipments by Service](/nerve-centre/kpi-cards/royal-mail/shipments-by-service) | The mix that drives the avg. | A 10-point shift in tracked share moves headline by 30 to 50 pence. Use this to decide whether a cost change is mix-driven or rate-driven. | | [High-Cost Shipment Outliers](/nerve-centre/kpi-cards/royal-mail/high-cost-shipment-outliers) | The tail of expensive consignments. | If 5 to 10 consignments per week are 3x+ the average (oversize, declared-value loading, remote-area triple-stacked), they pull the avg meaningfully. | | Cross-connector: [`hermes_evri.her_avg_shipping_cost`](/nerve-centre/kpi-cards/hermes-evri/avg-shipping-cost) | The alternative carrier for cost comparison. | Side-by-side comparison is the merchant's primary lever, the largest cost saving opportunity comes from rebalancing carrier share. | | Cross-connector: [`shopify.total_shipping`](/nerve-centre/kpi-cards/shopify/total-shipping-revenue) | Customer-paid shipping revenue. | Cost vs revenue is the shipping P\&L. If avg cost climbs but customer-paid stays flat, margin erodes silently. | | Cross-connector: [`shipbob.sb_otd_rate`](/nerve-centre/kpi-cards/shipbob/on-time-delivery-rate) | When ShipBob handles warehouse, fulfilment cost lives there separately. | This card is carrier-only spend; pair with ShipBob's per-pick fee for total fulfilment unit cost. | ## Reconciling against the vendor's own dashboard **Where to look in Royal Mail's own portal:** [Royal Mail Click & Drop](https://www.royalmail.com/business/shipping/click-drop) → **Reports → Spend** is the small-merchant view. [Royal Mail Business Account](https://business.parcels.royalmail.com/) → **Billing & Invoices → Monthly Statement** is the authoritative view used for invoice reconciliation; the merchant's monthly bill is the ground truth. The closest like-for-like view is *All Services, Last 30 Days, Outbound Only, Net of Discounts*. **Why our number may legitimately differ from Royal Mail's report:** | Reason | Direction | Why | | --------------------------------------------------------------------------------------------------------------------------------------- | -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Timezone (BST vs UTC)** | Boundary days off | The portal renders dates in UK local; the card uses UTC. Boundary-day shifts move at most 0.5 to 1 percent of monthly spend across the cutover. | | **Tracking-event vs billing event** | Either | The card joins shipment-cost from the Shipping API at label-print; the bill aggregates from the billing system at end-of-month sweep. Discounts, credits, and goodwill adjustments applied at month-end may not flow back into per-shipment cost. The bill is the ground truth for finance reconciliation. | | **Service-tier reclassification** | Either | If a consignment is reclassified mid-period (under-paid, surcharge added by Royal Mail at sortation), the card uses label-time service code and cost; the bill uses post-sortation final code and cost. | | **Peak-period sampling** | Either | December: the bill takes 5 to 10 working days post-month-end to settle; the card always shows label-time cost which is close but not exact. | | **Cross-connector reconciliation against [`hermes_evri.her_avg_shipping_cost`](/nerve-centre/kpi-cards/hermes-evri/avg-shipping-cost)** | Different population | Different carriers, different rate cards, different surcharge structures. The two cards together inform carrier-mix decisions, neither reconciles to the other. | **Cross-connector reconciliation:** | Card | Expected relationship | Causes of legitimate divergence | | ---------------------------------------------------------------------------------- | ------------------------------- | ----------------------------------------------------------------------------------------- | | [`shopify.total_shipping`](/nerve-centre/kpi-cards/shopify/total-shipping-revenue) | Customer-paid shipping revenue. | Free-shipping thresholds, promotional codes, B2B flat-rate billing. | | [`shipbob.sb_otd_rate`](/nerve-centre/kpi-cards/shipbob/on-time-delivery-rate) | Adjacent fulfilment leg. | Different cost line; ShipBob bills per-pick + per-pack, Royal Mail bills per-consignment. | ***
Documentation cross-reference (for agencies running multiple shippers) Avg shipping cost metrics exist with conceptually similar definitions across other UK carriers. Direct comparison is misleading without normalising for service-tier mix. * [`hermes_evri.her_avg_shipping_cost`](/nerve-centre/kpi-cards/hermes-evri/avg-shipping-cost)
## Known limitations / merchant FAQs **Royal Mail vs Evri, where is the cost saving?** For parcels above 1kg destined to mainland UK home addresses, Evri ParcelShop is typically £0.80 to £1.50 cheaper per consignment than Royal Mail Tracked 48 at the same weight. For sub-500g letterbox-friendly items, Royal Mail's Large Letter rates beat anything Evri offers. The healthy DTC pattern is to use both: Royal Mail for sub-1kg + letterbox, Evri for chunkier home-delivery. Your CFO will see the saving in the [`hermes_evri.her_avg_shipping_cost`](/nerve-centre/kpi-cards/hermes-evri/avg-shipping-cost) reading; the OTD trade is on [`hermes_evri.her_otd_rate`](/nerve-centre/kpi-cards/hermes-evri/on-time-delivery-rate). **What is the strikes-and-cost playbook?** During the CWU industrial action of Aug 2022 to Apr 2023 some merchants emergency-uplifted to Special Delivery to maintain service; avg cost spiked 30 to 50 percent for affected weeks. The decision was customer-experience driven, not cost-optimal. If a future stoppage hits, expect cost to rise temporarily; budget a 10 to 20 percent cost-headroom for stoppage weeks and reset when service resumes. **Tracked vs untracked, why does adding more untracked drop my avg cost so much?** Untracked is roughly 30 to 60 percent cheaper per consignment than tracked at equivalent weight. A 10-point shift toward untracked drops the headline avg cost by 30 to 50 pence. The hidden cost: untracked OTD is invisible (no scan), [Failed Deliveries](/nerve-centre/kpi-cards/royal-mail/failed-deliveries) rises, customer-service WISMO ticket volume increases. Untracked is genuinely cheaper for low-value items where a customer refund on a lost parcel costs less than the year-round tracked premium. **My avg cost climbed 8 percent overnight, what is the playbook?** Ordered. (1) Check the date; if it is 1 April or 1 October, Royal Mail's annual rate-card uplift may have triggered (uplifts are stepped, not gradual). (2) Check the fuel-surcharge update on the Royal Mail business news page (mid-month each month). (3) Check [Shipments by Service](/nerve-centre/kpi-cards/royal-mail/shipments-by-service) for mix-shift, a sudden 5-point jump in tracked share moves headline cost. (4) Check [High-Cost Shipment Outliers](/nerve-centre/kpi-cards/royal-mail/high-cost-shipment-outliers) for one-off oversize consignments. (5) If none of (1) to (4) explain it, query the Business Account billing line items for the affected day to identify the surcharge or zone change. **Why does my Royal Mail avg cost differ from my Click & Drop bill?** The card is shipment-cost-at-label-print; the bill is end-of-month invoice. Differences come from: (1) post-sortation reclassification (Royal Mail under-paid surcharges added at sortation), (2) end-of-month volume rebates and goodwill adjustments not pushed back to shipment-level, (3) credits for returned-to-sender consignments where the sender did not pay full tariff. Reconcile against the official monthly statement for finance purposes; use the card for unit-economics monitoring. **How do I plan for Q4 / Christmas peak?** Royal Mail does not typically apply a peak-season surcharge (unlike DPD, Yodel, or many international carriers); the avg cost stays roughly flat from a per-rate perspective during December. What changes is mix: more Special Delivery, more declared-value loading, more remote-area shipments to home addresses, and more Saturday surcharges. Expect headline avg cost to climb 5 to 12 percent through December driven entirely by mix, not rate. **My merchant runs a free-shipping threshold. How does that interact with this card?** This card measures cost-paid-to-carrier, not shipping-revenue-from-customer. A free-shipping order still costs the merchant £3.42 (or whatever the rate is) to send; that cost is just absorbed in the order margin instead of recovered from the customer. Pair this card with [`shopify.total_shipping`](/nerve-centre/kpi-cards/shopify/total-shipping-revenue) (customer-paid shipping revenue) to see the true shipping P\&L; the gap is the merchant's shipping-subsidy spend. **Why is the Highlands & Islands surcharge separate from the headline?** Royal Mail charges a Highlands & Islands surcharge (£1.00 to £2.50 per consignment depending on service) for ZE, KW, IV, AB, PA postcodes plus Northern Ireland zones for some services. The card pools this surcharge into the avg cost; if your customer mix shifts north your avg cost shifts up without any rate-card change. Use [Cost by Zone](/nerve-centre/kpi-cards/royal-mail/cost-by-zone) for the geographic split. *** ### Tracked live in Vortex IQ Nerve Centre *Avg Shipping Cost* is one of hundreds of KPI pulses Vortex IQ tracks across Royal Mail and 70+ other ecommerce connectors. Nerve Centre runs the detection layer; Vortex Mind investigates the cause when something moves; Ask Viq lets you interrogate any number in plain English. [Start for free](https://app.vortexiq.ai/login) or [book a demo](https://www.vortexiq.ai/contact-us) to see this metric running on your own data.