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Bulgaria and Turkey: aggregating pension periods

The recurring question is whether periods completed in two countries are merged into one pension. The answer sits in between: each country awards its own pension under its own rules, while periods in the other country are taken into account mainly to establish whether you qualify at all.

Working life · Last reviewed: 2026-08-16

What aggregation actually means

In social security coordination, aggregation does not produce a single combined pension. Each institution calculates a partial pension under its own legislation, using the other country's periods principally to reach the qualifying threshold. The outcome can be two separate payments from two countries. Which periods count, and which branches of insurance are covered, depends on the specific instrument that applies.

Bulgaria sits inside two different frameworks

Bulgaria has been an EU member since 2007, so EU coordination rules govern relations with other member states, while a bilateral arrangement governs relations with Turkey. A career spanning both is assessed under both frameworks at once.

Where to file

  1. Apply in your country of residence

    As a rule the institution where you live takes the claim and corresponds with the other country itself — you do not file twice.

  2. Pull your insurance records first

    From the National Social Security Institute for Bulgarian periods and from the Turkish institution for Turkish ones. Correcting gaps before filing is far easier.

  3. Prepare identity and status documents

    Citizenship, residence and any name-change records; foreign documents need translation and certification.

  4. Expect a long timeline

    Correspondence between institutions extends the case. Your filing date matters, so get it confirmed in writing.

What typically complicates a file

  • Overlapping insurance periods recorded in both countries.
  • Name spelling differing across documents because of Cyrillic-to-Latin transliteration.
  • Periods purchased or credited under a special national scheme — their cross-border effect is assessed separately.
  • Undeclared work: a period that cannot be evidenced counts nowhere.
  • Invalidity, occupational disease and survivors' pensions, where scope and conditions differ from old-age pensions.

Why no ages or year counts appear here

Pension age, required insurance periods and calculation coefficients are being phased in gradually in both countries and vary by gender, labour category and year of birth. A single number would mislead more readers than it helps. Binding information for your case comes only from an individual assessment by the National Social Security Institute and the Turkish institution, both of which issue insurance-record statements on request.

This is not legal advice

The scope of the instruments and domestic legislation both change. Obtain written information from the competent institutions before making a retirement decision, and consult a social-security specialist where the file is complex.

This is not legal or financial advice

This page explains the process in general terms and points to the official sources of the competent authorities. For decisions specific to your own situation, consult a lawyer, an accountant or the relevant institution. Rules and amounts change over time.

Frequently asked questions

Can I draw a pension from both countries?

Each institution assesses independently, so two partial pensions are possible. That is not double counting of the same period — overlapping periods are handled separately under the applicable rules.

Do Turkish periods increase the Bulgarian pension amount?

They are used principally to establish entitlement rather than to raise the amount, which is calculated on the Bulgarian contribution record. Whether there is any effect in your case depends on your record and must be confirmed by the institution.

What if my record shows missing periods?

Request corrections before filing, with evidence from the employer or the relevant institution. Corrections raised after proceedings begin slow the file considerably.

Sources

The information on this page is based on the official sources listed below. Legislation changes — open the links and verify the current position.

  1. Национален осигурителен институт (НОИ) — https://www.noi.bg/ · 2026-08-16
  2. Sosyal Güvenlik Kurumu (SGK) — https://www.sgk.gov.tr/ · 2026-08-16
  3. Министерство на труда и социалната политика — https://www.mlsp.government.bg/ · 2026-08-16
  4. Your Europe — Pensions and benefits abroad — https://europa.eu/youreurope/citizens/work/index_en.htm · 2026-08-16

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