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Understanding Swedish SIE accounting exchange

SIE moves accounting data between Swedish programs. Compare SIE 4 tagged text with SIE 5 XML and read about tags, encoding and file types.

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SIE, Standard Import och Export, is the Swedish standard for moving accounting data between programs, maintained by SIE-Gruppen since 1992. SIE 4 is a text file of tagged lines, such as #KONTO for accounts and #VER for vouchers, in code page 437, with five types from year balances to every transaction. SIE 5, from 2018, is XML with English names and signature support. Klarbon support is planned, not available yet.

What is in an SIE 4 file?

Tag Holds
#FLAGGA import flag
#FORMAT character set, PC8
#SIETYP file type, 1 to 4
#FNAMN, #ORGNR company name and organisation number
#RAR financial year
#KONTO, #KPTYP accounts and chart of accounts type
#DIM, #OBJEKT dimensions and objects, such as cost centres
#IB, #UB, #RES opening, closing and result balances
#PSALDO, #PBUDGET period balances and budgets
#VER, #TRANS vouchers and their transaction lines
#KSUMMA checksum
Type Contents File extension
1 year opening and closing balances .SE
2 type 1 plus monthly balance changes .SE
3 type 2 plus balances by object .SE
4E type 3 plus every voucher of the year .SE
4I vouchers only, for import .SI

Dates are written as YYYYMMDD and amounts with a full stop and at most two decimals. The specification is SIE file format version 4C (SIE 4C, SIE-Gruppen).

SIE 4 or SIE 5?

SIE 4 SIE 5
Syntax tagged text lines XML, with an XSD
Labels Swedish English
Encoding code page 437 XML encoding
Extra content customer and supplier ledgers, asset registers, documents
Protection checksum XML Signature

SIE moves bookkeeping between programs; it does not carry invoices. The older Swedish e-invoice format is covered under Svefaktura.

What does Klarbon do with SIE files?

Klarbon does not support SIE today; opening SIE 4 and SIE 5 files is planned, not available yet. Klarbon does not import data into or export it from accounting programs.

Frequently asked questions

What is SIE?

Standard Import och Export, a set of open file formats for moving accounting data between programs from different vendors. It has been the Swedish accounting industry's de facto standard since 1992, maintained by the association SIE-Gruppen.

What are the SIE 4 file types?

Type 1 holds year opening and closing balances, type 2 adds monthly balance changes, type 3 adds balances by object such as cost centre or project, and type 4E adds every voucher for the year. Type 4I holds only vouchers, for import into the bookkeeping system.

Which character encoding does SIE 4 use?

IBM PC 8 bit extended ASCII, code page 437, declared with the FORMAT tag as PC8. A program that reads the file as UTF-8 shows Swedish letters such as å, ä and ö wrongly.

What is SIE 5?

The XML version of SIE, released in 2018, with English element names, support for ledgers and asset registers, attached or linked documents and XML Signature for protection against changes.

Sources

Updated 6 November 2026