Accounting & bookkeeping · From Sofia
An accountancy firm in Sofia, for European businesses
Alternation keeps the books of European companies with genuine activities in Bulgaria — and processes purchase, sales and bank flows for firms that anchor their bookkeeping capacity in a professional Sofia team. Daily discipline, a fixed reporting rhythm, and figures an owner can rely on.
Bookkeeping is our core practice — carried by senior accountants, in Odoo.
What we do
The full bookkeeping cycle, handled professionally
Purchase, sales & bank
Daily processing of purchase invoices, sales invoices and bank statements — coded correctly, documented traceably, and closed every period rather than saved up for the year-end.
Periodic closing & reconciliations
Monthly or quarterly closing with reconciled balances: suppliers, customers, bank and VAT accounts that actually match reality — the basis for figures you can act on.
Management reporting
A fixed reporting cadence with the figures and context an international owner needs — not a data dump, but a readable account of how the business is doing.
VAT support & filings coordination
Bulgarian VAT registrations, returns and Intrastat prepared and coordinated on time. Positions that require fiscal judgement are reviewed with specialised tax professionals.
Annual accounts coordination
Preparation of the year-end file and coordination with the qualified professionals who handle the statutory assessment — we deliver clean books, they sign off.
Document & invoice workflows
Digital document flows with OCR-assisted processing, approval routines and archiving — the same discipline we apply to our own administration.
How we work
Senior accountants. Every period checked. A steady rhythm.
Good bookkeeping is not a talent, it is a system. Ours rests on three commitments that hold for every client file, every month.
01
Senior processing
Client files are processed by senior accountants — not handed down a junior chain where context gets lost.
02
Checked before reporting
Every period is reviewed before figures leave the house. Errors are caught inside the practice, not by the client.
03
One system
All files run in Odoo: documents, ledger and reporting in one environment. No parallel spreadsheets, no version chaos.
Where accountancy ends and advice begins
We keep the books. Specialists judge the positions.
Bookkeeping done correctly is a discipline in itself — and it has a clear boundary. Where a position requires fiscal, legal or social-law judgement, Alternation involves the specialised professionals we work with in Sofia, before small issues become structural risks.
The books correct, every month — not just at year-end. That is what professional operations look like from the inside.
Practice what we preach
Our own books run the same way
Alternation’s own administration runs in the same Odoo environment, with the same document flows and reporting rhythm we set up for clients. The practice has grown from processing real European client files since 2019 — that daily reality shapes our advice more than any feature list.