

Professional audit services help businesses ensure transparency, financial discipline, and compliance with legal requirements. Tezaurus Audit has been providing audit solutions for over 30 years to companies of all sizes across Lithuania – from financial statement audits to project audits.
We use specialized auditing software developed by us, thanks to which we import and process data directly from the client's accounting database. This allows to ensure the quality and efficiency of the next level of audit.
The Tezaurus audit process is designed with the client's most precious asset – time – in mind. We have moved away from the traditional, paperwork-based audit model and transitioned to a technology-driven method that ensures not only greater accuracy but also smooth communication.
The foundation of our work is audit software created by us and continuously improved. Instead of asking your employees to fill out endless spreadsheets or send hundreds of separate files, we securely import data directly from your accounting database. This eliminates the risk of mechanical error transmission and allows us to see the full financial picture in just a few moments.
Traditional audits often rely on a sampling method, where only a portion of the documents is checked. The IT tool we use allows us to review all (and not just selected) transactions and balances. This provides the client with an incomparably higher level of security, as we identify even the smallest deviations that could go unnoticed using old methods.
Since we receive most of the information directly from the database, your accountants and financiers do not have to waste time preparing additional reports for auditors. We only ask questions when necessary, based on already performed data analysis, so the audit is no longer a 'burden', but a smooth annual process.
At the end of the process, we provide not only an official audit conclusion but also valuable insights into your company's financial health and internal control processes. Our goal is not only to check the past but also to help you ensure a transparent, efficient, and secure business future.
Inspection of regulatory activity reports and regulatory accounting systems
Verification of tax calculation and declaration
We provide services throughout Lithuania.
After signing the audit contract, we provide consultations on taxes, preparation of consolidated reports and other accounting issues.
If needed we can visit our clients to collect information and perform other audit procedures.
Our specialty is the use of information technology in the audit process. In cooperation with our IT company we have created a program for data analysis and auditing, thanks to which:
Less disruption to the client's employees - we don't ask you to fill out tables for audits, print reports, etc. We obtain most of the data required for the audit directly from a copy of the accounting database.
We achieve greater audit efficiency - atypical, erroneous or risky operations are more easily noticed. Even errors that cannot be detected during the normal inspection of paper documents can be noticed.
A significantly larger volume of transactions is checked, often all transactions are reviewed.
Analytical procedures are performed that would not be possible without the data - e.g. adapted VAT rates are recalculated, sales price deviations from average prices or prices according to price lists are analyzed, unprofitable or unusually profitable sales are determined at the level of documents or goods.
Data from clients' accounting programs are imported into our audit software
Convenient import of bank statements into our application
The program is adapted to work with most of the accounting softwares used in Lithuania
Creating, sending and receiving debt confirmation letters electronically
After the audit, we provide the auditor's conclusion, which gives more credibility to the financial statements.
We present proposals for the improvement of the company's internal control system and other matters important to the management of the company that we noticed during the audit.
The price of the audit depends on the nature of the company's activities, the amount of operations, the number of employees and other indicators established in the company's calculation methodology. Fill out the audit scope assessment form and we will provide you with an audit service offer.
The audit process is led by auditors Aistė Perminaitė and Arūnas Butkus, who hold valid auditor certificates issued by the Lithuanian Chamber of Auditors, granting the right to perform financial statement audits and provide sustainability reporting assurance services.






























What are audit services?
They are an independent verification of financial data and processes that ensures transparency for the company.
How much do audit services cost?
The price depends on the size of the company, the scope of documentation, and the type of audit. Contact us for an individual offer.
What kinds of audit services do you provide?
We provide financial statement, project, sustainability, and other audit services.
When is an audit mandatory for a company?
In Lithuania, the obligation to audit financial statements is established by the Audit Law and the Law on Financial Reporting of Companies. An audit is mandatory if a company exceeds two of the three indicators listed below for two consecutive financial years: • Sales revenue – EUR 4.5 million • Balance sheet asset value – EUR 2.5 million • Average annual number of employees – 50 An audit is also mandatory for certain institutions and cases, regardless of indicators, for example: • Public interest entities (banks, insurance companies, regulated energy companies, etc.) • If required by investors, credit institutions, or contracts • For associations / charities when certain income thresholds are exceeded • When transferring or reorganizing a business in certain cases
How long does the audit process take?
The duration of the audit depends on the size of the company, the orderliness of processes, and preparation. Typical indicative timeframes: Company size | Audit duration Small company | 2–4 weeks Medium company | 1–2 months Large / group | 2–4 months The audit itself is often carried out in two stages: • Interim audit – performed during the year (if the company is larger). • Year-end audit – performed after the end of the financial year. The duration largely depends on how quickly the company provides documents to the auditors.
What is the difference between a financial audit and a tax inspection?
Financial audit: • Performed by independent auditors. • Purpose – to verify the accuracy of financial statements and provide an opinion on whether they correctly reflect the company's financial position. • Covers accounting processes, internal control, document substantiation. • Result – audit conclusion intended for company owners, investors, creditors. Tax inspection (STI): • Performed by the State Tax Inspectorate. • Purpose – to verify whether the company correctly calculated and paid taxes. • Focus – VAT, corporate income tax, personal income tax, social taxes, etc. • During the inspection, specific transactions and risky periods are often analyzed. • Result – Tax decision that may result in additional tax assessment and sanctions.