How it works

From your AWS bill to owned cost in five steps

Connect on Monday, see your first fully allocated month by Friday, run the first review in week two.

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Step 1

Connect

Read-only role + Cost & Usage Report

Step 2

Allocate 100%

BU · app · env · owner, shared costs split

Step 3

Tag ownership

Virtual tags — no AWS tagging needed

Step 4

Catch anomalies

Hourly, per resource → Jira / Slack / Teams

Step 5

Prove savings

Observed on the next bill, per owner

Step 1 · Connect

A read-only stack, nothing inside your workloads

Deploy one CloudFormation template in the payer account. It grants read access to the Cost & Usage Report and cost APIs; member accounts are discovered through AWS Organizations. History loads from Cost Explorer while the first CUR arrives.

100% allocation · BU → App → EnvSep 2026

Cost centre	Amortised	Share	Trend
Payments	$148,210	34%	−4.1%
checkout-api · prod	$71,400	16%	−2.0%
ledger-db · prod	$52,900	12%	−6.3%
staging + shared split	$23,910	6%	−3.8%
Search	$95,930	22%	+18.6%
Data Platform	$82,870	19%	−1.2%
Growth	$56,700	13%	+6.9%
Shared platform → split by usage	$52,300	12%	+0.4%
Total bill · unallocated $0	$436,010	100%

Steps 2–3 · Allocate & own

To 100%, with an owner on every line

Credits, refunds, RI/SP amortisation, support and marketplace charges are normalised; allocation rules split shared costs until unallocated is zero. Virtual tags give every resource an owner without touching AWS.

Steps 4–5 · Act & prove

Tickets go out, the next bill tells the truth

Hourly anomaly detection per resource routes findings to Jira, Slack or Teams. Savings actions get an owner and a ticket; the platform watches the following bills and attributes the observed drop.

Savings tracking · Q3 2026observed vs attributed

Opportunity	Owner	Status	Realised
Right-size 14 RDS instances	R. Mehta	Done	$61,200
Idle EKS nodes · shared cluster	S. Rao	Done	$48,700
gp2 → gp3 across accounts	Platform	Done	$22,900
Savings Plan top-up · compute	FinOps	In progress	$79,600
Retire 3 unused OpenSearch domains	A. Iyer	Ticket PM-1031	—
Realised this quarter			$212,400

Timeline

The first two weeks

Connected

Stack deployed, accounts discovered, history visible

Published at 100%

Rules agreed, owners assigned, anomaly detection live

Operating

Jira / Slack connected, first savings review, exec pack scheduled

See your own bill allocated to 100%

Thirty minutes with a FinOps engineer, on your AWS data if you like. No slideware.

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