Amend Tax Invoice - Change in Supply Cost

curl --request POST \ --url https://xapi.bolta.io/v1/taxInvoices/{issuanceKey}/amend/changeSupplyCost \ --header 'Authorization: Basic <encoded-value>' \ --header 'Content-Type: application/json' \ --header 'Supplier-Key: <supplier-key>' \ --data ' { "date": "2026-05-27", "taxType": "TAXABLE", "items": [ { "date": "2026-05-27", "name": "Price adjustment", "unitPrice": null, "quantity": null, "supplyCost": -200000, "tax": -20000, "specification": null, "description": null } ] } '

Authorizations

Authorization

string

header

required

Base64-encode your API key and pass it. Enter the API key as the username and leave the password empty.

Headers

Supplier-Key

string

required

The identification key of the supplier (issuer). This is the key of the issuing party itself, not the supplied party (recipient). Use the supplierKey obtained from the Register Supplier API (POST /v1/suppliers); the supplied party information goes in the supplied field of the request body. It is managed independently per API key. Glossary | Authentication guide

Path Parameters

issuanceKey

string

required

Issuance request identifier

Body

application/json

date

string<date>

required

Supply cost change date

Example:

"2024-08-24"

taxType

enum<string>

required

TAXABLE: taxable (e-tax invoice), ZERO_RATE: zero-rate (e-tax invoice), TAX_FREE: tax-exempt (invoice). For TAXABLE the item tax cannot be null; for ZERO_RATE every item's tax must be 0; for TAX_FREE every item's tax must be null.

Available options:

TAXABLE,

ZERO_RATE,

TAX_FREE

Examples:

"TAXABLE"

"ZERO_RATE"

"TAX_FREE"

items

object[]

required

Required array length: 1 - 16 elements

Show child attributes

Response

issuanceKey

string

required

The IssuanceKey of the amended tax invoice

Example:

"8D529FAD3EBAE050B79CE943CCC7CEDE"

Tax Invoice

Reverse Issuance

Supplier

Certificate

Cash Receipt

Amend Tax Invoice - Change in Supply Cost

Authorizations

Headers

Path Parameters

Body

Response