Accountancy & business operations in Bulgaria · From Sofia
Proper accounts. Professional operations.
Alternation is an accountancy firm and operating partner in Sofia. For European entrepreneurs and companies with genuine activities in Bulgaria, we keep the books, run the administration, advise on cross-border HR and implement Odoo — one team, one standard.
For companies with a genuine operational activity in Bulgaria — transparent ownership and long-term engagement.
Four fields. One operating partner.
Accountancy, systems and local operations, under one roof.
Alternation does four things, and does them thoroughly: we implement Odoo around real business processes, we keep books professionally, we advise on cross-border HR, and we support Western European entrepreneurs hands-on from Sofia. Each field has its own discipline — and its own page.
Odoo implementations
Process-first Odoo implementations for companies that want their system to match how the business actually runs. We start from your processes, then configure, integrate and support Odoo around them.
- →Process discovery and functional blueprint
- →Configuration, custom development and integrations
- →Data migration, reporting and document flows
- →Training, support and continuous optimisation
“First how the business must function, then the software.”
Odoo services →Accounting & bookkeeping
A professional accountancy practice in Sofia. We process purchases, sales and bank, close every period and report in a rhythm owners can rely on — for Bulgarian entities of European companies, and for firms that anchor bookkeeping capacity with us.
- →Purchase, sales and bank processing
- →Periodic closing and reconciliations
- →Management reporting in a fixed cadence
- →VAT support and annual accounts coordination
“The books correct, every month — not just at year-end.”
Accounting services →HR advisory
Cross-border HR guidance for companies that employ or post people between EU member states. We coordinate A1 and Limosa workflows, monitor their validity, and organise the HR side of your Bulgarian team.
- →A1 applications and Limosa declarations
- →Posting administration and validity monitoring
- →HR coordination for Bulgarian teams
- →Escalation to social-law specialists where required
“People employed correctly — in both countries at once.”
HR advisory →Working from Bulgaria
Hands-on operational support from Sofia for Western European entrepreneurs with genuine activities in Bulgaria. We organise the local side of your business so it functions professionally, day to day.
- →Company establishment and local presence, correctly prepared
- →Administrative hub for documents, invoices and deadlines
- →Management reporting and clear responsibilities
- →Coordination with specialised local professionals
“Not merely exist, but function professionally.”
Operating in Bulgaria →The differentiator
European management standards. Made workable locally.
A Bulgarian company does not automatically operate according to a foreign owner’s expectations. We organise bookkeeping, responsibilities, reporting, workflows and digital systems — not by copying a foreign model, but by adapting it to the local operating reality. With mutual professional respect.
The method
01
Diagnose
Understand the real activity, ownership, expectations and current systems.
02
Translate
Turn owner expectations into concrete local responsibilities and decisions.
03
Co-design
Design processes with Bulgarian managers and employees, not for them.
04
Configure
Implement the operating model in procedures, reports, controls and Odoo.
05
Embed
Train people, support adoption and establish a stable management rhythm.
06
Improve
Measure use, remove friction and refine based on real operations.
Why Alternation
Local execution with international experience
Alternation has operated from Sofia since 2019 and is led by Natali. The company draws on the practical experience of Belgian entrepreneurs, including an entrepreneur who lives and works in Bulgaria.
The Sofia accountancy team processes the books of European client files every day — senior accountants working in the same Odoo environment and reporting rhythm as the clients they serve.
For notarial, tax and social-law matters, Alternation works with specialised professionals in Sofia, connecting operational guidance with qualified professional expertise.
Careers
We are hiring senior accountants in Sofia
Alternation is growing its accountancy team. If you are an experienced accountant who wants to work for European clients in a professional, Odoo-driven practice — we would like to meet you.
See the open position →