25th of the month following the payroll month.

Form 1 / Form 6 — Monthly Payroll Declaration

Monthly payroll declaration to the NRA for social insurance and personal income tax withholding. Form 1 (declaration of insured persons) due 25th; Form 6 (contributions) also due 25th.

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Who this applies to

  • All Bulgarian employers
  • Self-insured persons (sole traders)

What to file

Form 1 listing each insured person and their insurable income; Form 6 showing total social insurance and income tax withheld.

How to file

Online via NRA portal with qualified electronic signature.

Payment due

25th of the month following — social insurance and PIT withholding paid via bank transfer.

Penalties for missing this deadline

Late filing BGN 500 – BGN 5,000. Late payment interest approximately 13–14% per annum.

Filing checklist

  • Reconcile gross salaries from payroll system
  • Calculate employer + employee social insurance
  • Calculate 10% PIT withholding
  • File Form 1 and Form 6 via NRA
  • Pay social insurance + PIT by 25th

Common mistakes to avoid

  • Missing the 25th (much earlier than VAT)
  • Wrong insurable income cap (BGN 3,750/month in 2024 — verify current)
  • Not declaring all benefits (food vouchers, transport allowances etc.)

Never miss a Bulgaria deadline

AccountsOS tracks every National Revenue Agency (NRA / НАП) and Trade Register (Търговски регистър) deadline and reminds you weeks ahead.

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