Taking over accounting during the tax year – it’s possible and hassle-free!
Taking Over Accounting During the Tax Year: It’s Possible and Hassle-Free
In practice, most companies that switch accounting firms during the year do it too late. We often hear concerns that switching accounting firms during the tax year is too complicated and creates multiple practical problems. That is simply wrong. At Sarego Finance, we show in practice that taking over accounting during the year is fully possible and can be seamless for the client.
If you are not satisfied with your current accounting services, you do not need to wait until the end of the year. Acting earlier allows you to restore control over your company’s finances and ensure professional support without unnecessary delay.
If your accounting is already causing problems, waiting only increases risk.
The practical conclusion is simple: if your current accounting firm is too slow, communicates poorly or produces errors, you do not need to wait until December. A properly organized transition during the year is not only possible, but often the better option.
Table of contents
- Common mistakes when switching accounting firms
- How long does switching accounting firm in Poland take
- Who this is relevant for
- When switching accounting firms makes sense
- Why switching during the year is possible
- Costs of switching accounting firms in Poland
- The process in three simple steps
- Responsibility for past and future periods
- Documents and access usually required for the handover
- What if the previous bookkeeping is incomplete or incorrect
- Risks of switching accounting during the year
- Why companies wait too long
- How Sarego Finance manages the transition
Who this is relevant for
This topic is particularly relevant for business owners, management board members and foreign companies operating in Poland that outsource accounting and payroll. It is especially important for companies that need reliable ongoing accounting in Poland, clear communication and a structured process instead of constant uncertainty.
In practice, this is often an issue for Polish limited liability companies, foreign-owned subsidiaries, service businesses and trading companies. If the existing provider does not deliver a stable process, changing the accounting firm during the year may be the most rational solution.
When switching accounting firms makes sense
A switch usually makes sense when the problem is no longer isolated but structural. Typical warning signs include slow responses, lack of transparency, unclear allocation of responsibilities, errors in tax filings, unreliable payroll handling or weak support with practical matters such as ZUS, VAT, CIT or communication with the authorities.
Many companies still remain with the same provider because they assume that changing accounting firms during the year would create even more chaos. In practice, the opposite is often true. A controlled transition is usually less risky than several additional months with a provider that is already causing operational problems.
Why switching during the year is possible
How to switch accounting firm in Poland during the year
To switch accounting firm in Poland during the year, the key is a clear handover date, proper transfer of documents and defined responsibility split. This allows continuity without disrupting tax, payroll or reporting obligations.
Accounting is not a process that has to be tied to December 31. What matters is a clean separation of periods. The previous accounting firm closes the periods it handled. The new firm takes over ongoing bookkeeping from the agreed date. That is exactly why accounting can be transferred during the year.
The decisive issue is not the calendar month, but how the handover is organized. If documents, bookkeeping data, tax accounts, ZUS information and payroll data are transferred properly, continuity can be preserved. From the client’s perspective, this technical stage should remain largely in the background.
In practical terms: a properly managed transition should not lead to delayed employee salaries, missing ZUS filings or failures in current tax compliance. If those problems appear, the issue is not the fact of switching accounting firms, but poor organization of the switch.
Costs of switching accounting firms in Poland
The cost of switching accounting firms in Poland depends mainly on the condition of the existing bookkeeping and the amount of data that must be handed over. In straightforward cases, additional costs are usually limited. Extra work typically arises where the previous records are incomplete, inconsistent or require correction.
This means that the switch itself is often not the real cost issue. Companies that decide to switch accounting firm in Poland usually discover that the real issue is the quality of the prior accounting work. If earlier periods were handled badly, some review and cleanup may later become necessary.
The process of taking over accounting consists of three simple steps
Terminate the agreement with your current accounting firm
Check the notice period set out in your contract and determine the earliest realistic handover date. Without this step, a clean transition cannot be planned properly.
Sign an agreement with Sarego Finance
The scope of services, the takeover date and the split of responsibilities should be defined clearly. That makes it clear from which point onward the new provider is responsible.
Technical and organizational transfer of accounting
Documentation, bookkeeping data, registers, employee information and access credentials are transferred. For the client, this phase should be almost invisible if the process is handled properly.
Responsibility for past and future periods
This is where many misunderstandings arise. Switching accounting firms does not automatically mean that the new provider retroactively assumes responsibility for all earlier periods. As a rule, the previous accounting firm remains responsible for the periods it handled. The new firm takes over from the agreed handover date.
This split of responsibility must be clearly defined from the beginning. That is what reduces the risk of gaps, duplicate filings or disputes about who was responsible for what.
Documents and access usually required for the handover
A proper takeover requires more than invoices and receipts. What matters is structure. That usually includes bookkeeping balances, VAT registers, open item information, ZUS data, payroll records, access credentials to relevant systems and information about returns that have already been submitted.
- current accounting documents and source records
- trial balances, ledgers and bookkeeping summaries
- VAT, CIT and, where relevant, JPK related data
- ZUS and payroll documentation
- information on tax returns and filings already submitted
- authorizations, user access and practical contact points
The better these materials are prepared, the smoother the transition will be. That is why the new provider should not merely receive data, but actively manage the handover process.
What if the previous bookkeeping is incomplete or incorrect
In practice, it often happens that the previous accounting firm does not hand over complete documentation or that past periods were booked incorrectly. That is not a reason to postpone the transition. Incomplete or problematic historical bookkeeping does not block the takeover.
Even if the new accounting firm does not yet have a complete picture of the past, it can still start the current bookkeeping from the takeover date. The key objective is to stabilize the ongoing accounting process. Past periods can be dealt with separately.
In practice, the next step is often an audit of the previous bookkeeping. The aim is to determine whether entries were made correctly and whether tax risks exist. If errors are identified, corrections may be required. In some cases, it may even be necessary to rebook entire historical periods.
The key point is straightforward: historical bookkeeping problems are not a barrier to changing accounting firms. They can be addressed in a structured way afterwards. The transition itself should not depend on whether the old bookkeeping is perfect.
Common mistakes when switching accounting firms
- waiting too long to switch accounting firm in Poland
- no clear responsibility split between providers
- incomplete or chaotic data handover
How long does switching accounting firm in Poland take
In simple cases, the transition takes 1–2 weeks.
In more complex cases, especially with poor bookkeeping, the process may take 3–6 weeks.
Risks of switching accounting during the year
The biggest risk is not the transition itself, but poor organization of the handover. Typical problems arise from missing data, unclear allocation of responsibility or weak communication between the parties involved. With a structured process, those risks can be managed.
That is also why businesses should focus less on the myth that switching accounting firms during the year is inherently dangerous and more on whether the transition is being handled by a provider that can actually organize it properly.
This is exactly the moment when companies decide to switch accounting firm in Poland.
Why companies wait too long
The most common mistake is delay. Many businesses hope that the cooperation with the existing accounting firm will improve on its own. In practice, that often only means that operational problems continue to accumulate for months. That does not make the later transition easier. It usually makes it harder.
If confidence in the current setup has already been lost, waiting is usually not a good strategy. An earlier switch can stop a chain of mistakes and help restore control over deadlines, finances and day to day communication.
Looking to switch your accounting firm in Poland?
If your accounting is already causing problems, waiting only increases risk. Contact us and fix it now. We support companies in Poland with accounting transitions, tax compliance, VAT and payroll, and we organize the process in a structured way.
You can learn more about our ongoing services on our page for accounting, tax, payroll and VAT services in Poland. You can also explore our approach to VAT compliance, payroll services and VAT registration in Poland to better understand how the transition is handled in practice. You can also review our VAT registration service here: VAT registration in Poland. If you want to discuss your case directly, contact us using the form on our website.
FAQ – switching accounting firms in Poland
Can you switch accounting firms in Poland during the year?
Yes. The process is entirely possible. What matters is a properly organized handover of documents, data, access and responsibilities.
Who is responsible for periods before the switch?
As a rule, the previous accounting firm remains responsible for the periods it handled. The new firm takes over from the agreed transition date.
What if the previous bookkeeping is incomplete or incorrect?
That does not block the transition. Current bookkeeping can still begin, while previous periods can be audited, corrected or rebooked later if necessary.
How long does an accounting transition usually take?
In many cases, a few weeks are enough. The actual timing depends on the quality of the handover and whether documents and access are provided promptly.
We have supported multiple companies in switching accounting firms in Poland during the year. We support foreign entrepreneurs and companies operating in Poland in the areas of accounting, tax compliance, VAT and payroll. Our focus is on clear processes, strong communication and a digital workflow.