Domain catalogue Finance

Tax codes and jurisdictions

Tax codes, rates, jurisdictions and their validity as reference data shared by every system that prices, invoices or reports.

SOURCES, READ IN PLACESAP S/4HANAERPOracle Fusion CloudERPSalesforceCRMSnowflakelakehouseASSEMBLED1 · standardise2 · match on the domain keys3 · survive field by field4 · place in the hierarchies5 · run the column and row rules6 · publish the golden viewGOLDEN TAX CODES AND JURISDICTIONSTax codes and jurisdictionsone id · every source key keptREAD BYGrids, pivots and drill-downswith the transactionsAPIs, SQL and agentsone policyWrite-back to the systemsacknowledged
Where the tax codes and jurisdictions record comes from, how it is assembled, and who reads it. Other systems have their own page.
2 days
of configuration to a production-grade version
estimate
4
attribute groups in the golden record
catalogue
2
match keys
catalogue
2
hierarchies the record sits in
catalogue
2
kinds of transactions that refer to it
catalogue
What it is

Today, and with the golden record

Today a rate change is keyed into each ERP and the web shop separately; one of them keeps the old rate for a week and the invoices are wrong.

With Lima the tax codes are read where they live, matched on country + code and jurisdiction code, assembled field by field and published as one golden record per real tax codes, with every source key underneath. The invoices posted with a code and the rate history behind them are one click away, because the transactions sit in the same bed.

The golden record

4 attribute groups, and which source usually wins each

Survivorship is per field; the winning source below is the usual one, and a steward's verified edit outranks it.

Codetax code, type, description, country, jurisdiction
wins: tax
Ratepercentage, valid dates, reduced or standard, exemptions
wins: tax, versioned
Mappingscodes per system, GL accounts per code
wins: crosswalk
Determinationproduct tax class and customer tax class combinations
wins: tax and pricing
How records match

The keys, in order

country + codejurisdiction code

A rate is a versioned value; invoices dated in the old period read the old rate from history.

Pairs above the merge line merge; pairs between the lines go to the steward with the two records side by side and the transactions of each; the rest stay apart. Every merge can be undone. The golden records page explains the steps.

Where it sits

2 hierarchies

Several structures for the same record, each kept as versions with dates.

HierarchyLevels and use
Jurisdictioncountry → state → county → city
TypeVAT, sales tax, withholding, excise

A pivot can roll the record's measures up any of them; a draft version is validated against the facts before it goes live. See hierarchies.

Rules at three levels

Sample rules from the template

Written in one language, tested on live rows before they are saved.

LevelRules
Columnrate is between 0 and 100
valid-to is after valid-from
country is in the ISO list
Rowa code with a rate has a GL account mapping
a reduced rate names its legal basis
Businessone active rate per code per date
every taxable product class has a determination for every active jurisdiction it sells into
What refers to it

Transactions, measures and drill-downs

Transactions in the bedRead from
Invoicesbilling documents
Tax returnstax engine
invoices by code and monthrate changes per yearcodes missing a mapping

Measures above are available in the pivot on any hierarchy level, by month or week, with calculated measures beside them. Drill-down opens the invoices posted with a code and the rate history behind them.

Security pattern

What is masked, who edits, who reads

Default policy for the domain

Tax edits rates through an approved request; pricing and finance read; everyone else sees the code and rate. The twelve layers apply on every door; see security.

The lookup API

Pass the keys you know, get the golden record

request
POST /api/v1/golden/tax/resolve
{
  "country": "DE",
  "product_class": "standard",
  "customer_class": "business",
  "date": "2026-10-01"
}
response
200 OK
{
  "code": "A1",
  "rate": 19.0,
  "gl_account": "GL-1750000",
  "valid_from": "2007-01-01"
}

The same call creates the record when nothing matches; related facts are expanded through the cross-reference; page sizes and limits are published per endpoint. See the headless API.

On your systems

One page per system

The objects with their real names, the keys in that system's fields, the write interface and what to set up first.

A day with it

Illustrative

Names, places and figures are illustrative or anonymised; the pattern is the catalogue's.

A retailer selling in 11 countries keeps tax rates once and publishes them to two ERPs and the web shop. A rate change in one country reached all three the same morning.

illustrative scenario · Tax codes and jurisdictions
Terms on this page

JurisdictionThe authority whose tax applies at a place.
Tax classA grouping of products or customers that determines which code applies.
DeterminationThe rule that picks a tax code from the classes and the place.
Golden recordThe one record for a real tax codes, assembled from the source records, with every value carrying its source, rule and time.
Cross-referenceThe list of source keys that belong to one golden record.
Questions

Does this domain copy data out of the systems?

The golden record is a governed view over rows read in place; a governed replica in your lake is used only where a source is too slow or too limited to query live, and the column says so.

How long to the first golden view?

One working day for the first two sources; 2 working days to a production-grade version with rules, hierarchies, security and write-back tested.

Which industries use it most?

Consumer goods, High-tech and semiconductor, Financial services. The industry pages show the domains each starts with.

See your first domain built on your data

Bring two systems that hold the same customers, suppliers or materials. In one working day we connect them, run the match on live rows, review the queue with your steward and publish the first golden view with its API.