NE-bilaga explained: how a sole trader declares business result in Sweden

The NE-bilaga is the attachment to the Swedish income tax return where a sole trader (enskild firma) reports the year’s business numbers: revenue, expenses, and the resulting result. The form SKV 2161 return itself is the envelope; the NE is where the business actually lives.

This page explains what goes on it and how it connects to your bookkeeping. It is not tax advice; confirm line-by-line details in the current NE-bilaga instructions from Skatteverket.

The logic of the form

An enskild firma has no separate legal existence, so there is no corporate return. Instead, the business result is computed on the NE-bilaga and then transferred into your personal return, Inkomstdeklaration 1. The form changes its SKV number between years, which is why searches for “NE-bilaga” often surface several form numbers; the content structure is stable:

• Intäkter (revenue): grouped by income type. Digital product sales are typically business (näringsverksamhet) income; the instruction specifies the current line.
• Utgifter (expenses): grouped by cost type: local, material, marketing, equipment, professional services. Personal expenses do not belong here.
• Result: revenue minus expenses, with add-backs and deductions (avskrivningar on equipment, periodiseringsfond allocations) applied according to the rules.
• Special situations: starting or closing a business mid-year, deficits, and corrigenda each have their own handling.

Where the numbers come from

The NE-bilaga is the reporting layer. The numbers come from your bookkeeping during the year. If you used the one-pool method (business and personal money in one pool, transactions tagged as firm or private as they happen), the May filing is a summation exercise: filter the year’s firm transactions, group them into the form’s categories, done.

If instead the year’s records are a shoebox of receipts, the NE-bilaga is where that debt comes due. The practical fix is not heroics in May; it is choosing a bookkeeping shape that produces these numbers continuously.

Deficits and the 5-year window

A business deficit (underskott av näringsverksamhet) does not disappear. It reduces taxable income in the year and carries forward, usable against future business surpluses within a five-year window. Solo builders who run a loss-heavy first year should read the five-year deficit window section of the main guide; the mechanics matter for planning when to expect the surplus year.

Filing mechanics

• The NE-bilaga is submitted with Inkomstdeklaration 1, electronically via Skatteverket’s e-service or file transfer.
• Deadline: 4 May 2026 (1 June with anstånd).
• Corrections after filing: file a corrected return; do not wait for Skatteverket to find the error.

Sources

• Skatteverket: Deklarera enskild näringsverksamhet
• Skatteverket: Datum för deklarationen 2026