We review significant transactions and accounting adjustments, explain their tax treatment and help plan corporate tax obligations before filing.
A company had collected corporate tax information but remained unsure how it applied to its transactions. ARG reconstructed the relevant dealings, identified the tax exposure and organised the evidence supporting the chosen treatment. The company could then understand what remained outstanding and why the next steps mattered to its tax position.
That situation is common when accounting figures, transaction records and Bulgarian tax rules do not yet form one clear picture. Corporate tax planning starts by confirming whether the company falls within the Bulgarian regime, then distinguishing accounting profit from tax profit before reviewing advance payments, annual obligations or available losses.
ARG can help when you need to
Provide the company structure and operating facts. Bulgarian resident companies, foreign permanent establishments and payments subject to withholding follow different corporate tax rules.
Prepare the trial balance, material contracts, invoices and proof of performance. Tax profit requires statutory adjustments; an expense in the accounts is not automatically deductible.
Confirm sales for the year before the previous year, formation history and forecast tax profit. These determine whether advances are required, their frequency and their amount.
Reconcile tax adjustments, loss balances and advances before the 1 March–30 June filing window. Keep a qualified-signature filing route and funds for payment by 30 June.
Bulgarian resident companies generally pay corporate income tax on their tax profit from Bulgaria and abroad. A foreign company is generally within this profit-tax regime for business carried on through a Bulgarian permanent establishment; particular Bulgarian-source payments can instead fall under withholding rules. The Corporate Income Tax Act (ЗКПО, commonly transliterated ZKPO) distinguishes these cases. Start by identifying the legal entity, its residence and the activities performed in Bulgaria, then determine which income belongs in its return. The NRA explains the taxable categories and ordinary 10% rate.
ARG would not start from the assumption that every company transaction is taxable in the same way. The first step is to classify the client in one of the categories that the statute brings into the corporate tax net, then test the facts that create Bulgarian taxing rights. That usually means checking whether the entity is Bulgarian resident, whether it is a foreign company with a Bulgarian permanent establishment, and whether any special status changes how the income is treated under the Act.
That distinction is commercially important. A company may look simple on paper, yet still need a corporate tax review if it has a Bulgarian presence, local operations, or transactions that are routed through a structure with a permanent establishment in Bulgaria. If the company is inside the regime, the tax analysis becomes about tax profit, advances, annual return obligations and possible adjustments. If it is not inside the regime, the question shifts to whether another Bulgarian tax rule applies instead.
Corporate tax advisory is relevant when the client needs to know whether Bulgaria taxes the company at all, and if so, on what basis. That requires a fact review of the legal form, place of incorporation, management and operations, as well as the actual transaction pattern. For a foreign group, the key issue is often not the place where invoices are issued, but whether the business in Bulgaria is enough to create a permanent establishment under the corporate tax regime.
For a foreign-owned Bulgarian company, provide the incorporation documents, ownership chart, management arrangements and contracts that explain the actual business. A customer paying an overseas bank account does not by itself take the company’s income outside Bulgarian tax. Conversely, a foreign company’s Bulgarian customer does not by itself establish a permanent establishment. ARG uses the operating facts to identify the applicable rules before reviewing deductions and distributions.
If the entity is not classified correctly at the start, every later tax decision can be built on the wrong foundation.
This service is needed when you want to confirm one of three things.
If those facts are unclear, the correct next step is to map the company’s residence, operations and transaction flow before any tax planning is done.
The ordinary corporate rate is 10% under Article 20, applied to tax profit under Article 19. Accounting profit is the starting point, but the Corporate Income Tax Act requires adjustments for expenses, income and timing differences. A company therefore needs a reconciliation from the approved accounting figures to the tax return. The Act’s rules on the tax financial result explain why a purchase recorded as an expense can fail to reduce tax immediately, or at all.
Accounting profit is the result shown by the financial statements. Tax profit is the amount that remains after the statutory tax adjustments are applied to that accounting result. Those adjustments are the reason a company can show one figure in its accounts and a different figure for corporate tax purposes. For planning, that means the legal analysis has to identify which income items, expenses, reclassifications or timing differences affect the taxable base before anyone assumes the tax cost.
For a client, this has two immediate consequences. First, a transaction that looks neutral in the accounts may still create a tax adjustment. Second, a cost that appears in the profit and loss statement may not reduce the taxable base in the same way or in the same period. That is why company tax planning in Bulgaria often begins with reconstruction of the relevant dealings, not with the headline accounting profit.
ARG would test the company’s transactions against the tax rules that define the taxable base, then build the tax profit calculation from the underlying documents. That is the point at which forecasting becomes useful. If the tax base is higher or lower than the accounting figure, the 10% rate applies to the corrected tax profit, not to the management accounts as such.
This matters for cash flow, dividend planning and the timing of deductible expenditure. A client who wants to estimate exposure, set aside reserves or decide whether to distribute profits needs the tax result, not just the accounting result. In a simple example, a profitable company in the accounts may still need a different tax forecast once the statutory adjustments are applied, which can change the amount of tax to budget for.
If the accounting numbers are already reconciled to the tax position, then the planning conversation can move to cash flow and compliance timing. If they are not reconciled, the first useful step is a tax-profit calculation based on the company’s actual transactions and supporting evidence. That is the foundation for a reliable view of exposure, because the 10% rate only becomes meaningful once the taxable base is correctly established.
A useful corporate tax calculation shows the accounting starting point, each statutory increase or decrease, the treatment of losses and the final liability. Management should be able to trace a material adjustment back to a contract, accounting entry and explanation of the applicable rule before approving a distribution or committing funds elsewhere.
Keep documents showing what was purchased, why it served the business and that the transaction actually occurred. For a management or consulting fee, that can include the scope of work, deliverables, correspondence and the method used to allocate a group cost. An invoice is part of the evidence; a payment reference alone rarely explains the service. Article 10 addresses documentary support, while Article 26 identifies expenses that are not recognised for tax. Personal spending through the company, fines and unsupported costs require particular attention. The Corporate Income Tax Act also requires related-party terms to meet the arm’s-length standard under Article 15.
Separate current expenditure from assets and distinguish accounting depreciation from tax depreciation. The timing of a deduction can change even where the purchase is genuine and commercially justified. For owner payments, identify whether the amount is remuneration, a reimbursed expense, a loan repayment or a distribution. Each label must match the underlying arrangement and supporting records; the company bank account is not interchangeable with the owner’s personal account.
Tell us where you live, how your business works and what you want to change. We will help you identify the questions to resolve and the next steps to consider.
Advance corporate tax depends on the net sales revenue for the year before the previous year, alongside the company’s formation history. The current NRA thresholds exempt ordinary businesses at or below €153,387.56; above that amount and up to €1,533,875.64 the ordinary cycle is quarterly, and above the higher amount it is monthly. Newly incorporated persons are generally exempt in the formation year and following year, except companies created through a transformation. The amount payable is based on forecast tax profit, not historical turnover. The NRA gives the thresholds, exceptions and payment calendar.
ARG would first test the company’s net sales history, its incorporation route and whether any transformation rule applies. That matters because the legal category determines both the frequency of the advances and whether an advance-payment declaration has to be filed for the year. If the company is in the advance-payment regime, the amount is not fixed by a flat estimate. It is calculated from the projected tax profit multiplied by the corporate tax rate, so forecasting assumptions directly affect cash flow and the risk of overpaying or underpaying. A company with expanding margins may need a very different payment plan from one with volatile or seasonal results, even if both are taxed at the same 10% rate.
The annual advance-payment declaration is filed from 1 March to 15 April of the same year. That filing is not a formality, because the projection in that declaration determines the instalments for the year. If a company is newly formed by transformation, the declaration deadline moves to the deadline for the first advance payment after the transformation. The practical effect is that a transaction in corporate form can change the timing of the tax workflow immediately, so the merger or transformation file has to be reviewed together with the tax calendar.
The forecast is not a guess for convenience. It is the basis on which the instalments are legally set.
For a 2026 advance-payment review, start with 2024 net sales, the incorporation date and any transformation documents. Then prepare a 2026 tax-profit forecast and reconcile amounts already declared and paid. These figures answer different questions: the reference-year sales determine the ordinary payment category, while current forecast profit determines the amount. Record major assumptions, such as a contract completing in December or an expense that is not tax-deductible. This gives management a basis for revisiting the forecast when trading changes.
In commercial terms, this service is about avoiding a cash-flow mismatch and a compliance error at the same time. The correct route depends on whether the company is a first-year entity, a transformed entity or an established taxpayer with sales above the statutory threshold.
Short checklist for the client
The annual corporate tax workflow has three separate steps. The company files the annual tax return, files the annual activity report electronically, and then pays the annual corporate tax after crediting the advance payments already made. Under the Corporate Income Tax Act [ZKPO], the annual tax return is filed with the local NRA directorate from 1 March to 30 June of the following year, and the annual corporate tax is paid by 30 June of the following year. Corporate Income Tax Act and the NRA guidance on tax payment timing support that split between filing and payment.
The return records the tax financial result and liability; the annual activity report is the statistical report referred to in Article 92(3). It is different from publication of the annual financial statements in the Commercial Register. Submitting one filing does not complete the others. The corporate return is filed electronically with a qualified electronic signature, directly or through an authorised representative. Assign responsibility for each filing, retain its acceptance confirmation and separately confirm payment to the NRA.
For planning, the key point is that the annual tax due is reduced by the advance payments made during the year. So the year-end job is not just to file a form. It is to reconcile the liability, credit the instalments and confirm what remains payable by 30 June. That is especially important where projected profits were conservative or where trading changed materially during the year. If the forecast was too low, the company may owe a larger balancing amount at year-end. If the forecast was too high, the return should show the correct final tax position and the client can see whether the cash outflow was larger than necessary.
ARG would normally start from the closing accounts and the tax-profit calculation, then check whether the annual activity report is ready for electronic filing and whether the advance payments already made reconcile with the annual tax due. That allows the client to see the whole compliance picture before the filing window closes. The essential evidence is not only the year-end accounts but also the prior advance-payment records, because they determine the final payment position.
If the company is part of a group or has cross-border flows, the year-end review also becomes the moment to check whether any transaction needs to be reconstructed before it is filed. That does not change the filing deadlines, but it can change the final tax number. For a client, the practical benefit is that the return is filed once, with the correct supporting position, rather than being amended later because the underlying data was incomplete.
The right next step depends on whether the company already has a complete tax file for the year. If it does, the work is mainly reconciliation and submission. If it does not, ARG needs the source records before the deadline so that the annual return, the activity report and the payment amount line up. The service is therefore about closing the year in a way that is defensible, timely and cash-flow aware, not just about pressing submit on a form.
Yes, tax losses can be used, but only within the statutory carry-forward framework and only if the source and timing rules are respected. Under the Corporate Income Tax Act [ZKPO], a tax loss may be carried forward for 5 years. The taxpayer uses the right by offsetting the loss in the first year after the loss arises in which there is positive tax profit before offset. If no such year exists by the time of audit, the right is treated as exercised. The loss is deducted only up to the amount of positive tax profit before offset. The same statute also sets special rules for foreign-source losses in certain treaty-method cases, including the exemption with progression and the tax credit method. Corporate Income Tax Act is the governing source for both the carry-forward period and the foreign-source limitation.
A loss is not a free-standing asset that can be used whenever management wants. It is used against the first later year with positive tax profit, and only up to that positive amount. That means the order of profits and losses matters. If a company expects to return to profitability, the review has to ask whether the loss window will still be open by then. If the company stays loss-making throughout the relevant period, the legal position becomes more technical, because the statute treats the right as exercised once the audit position is reached without an earlier offset opportunity.
Foreign losses require a source-by-source calculation. Article 73 generally ring-fences a loss under the exemption-with-progression method to profits from the same foreign source, with a specific rule for cessation of an EU/EEA permanent establishment. Under Article 74, the foreign-source portion of a tax loss remaining unabsorbed in the current year is carried forward against profits from that source. Do not describe those two methods as identical or assume every foreign loss can reduce Bulgarian-source profit. Record the source, method, current-year treatment and remaining five-year period before entering an offset. Articles 70–74 govern the loss calculation.
Loss planning is only reliable if the company’s records show when the loss arose, whether it has been used already and what type of income generated it. ARG would therefore reconstruct the loss ledger together with the relevant transactions, because the carry-forward right depends on facts, not just on the closing balance shown in the accounts. That is also where the service can uncover a hidden issue. A company may think it has unused losses, but the tax file may show that some were already absorbed by prior positive profits, or that a foreign-source restriction limits how they can be used.
A tax-retention or other relief under Chapter 22 needs its own eligibility review. Article 167 sets a year-end condition concerning enforceable public debts, specified sanction liabilities and related interest, with a rule for amounts not reflected in the NRA account or enforcement records at 31 December. Satisfying that condition alone does not create entitlement: the relevant relief can impose additional activity, investment or state-aid requirements. Obtain the debt information and the evidence for the particular relief before treating it as a reduction in the tax forecast. Article 167 and the relevant relief provisions must be read together.
If your company has losses, the next question is not simply whether they exist, but which profits they can legally offset and when the carry-forward period starts to run. If the company has cross-border income, the source of the loss and the treaty method have to be mapped before any tax-saving assumption is made. If the company is also hoping to use a relief or deferral rule, the public debt position must be checked at the year-end date first.
That is why this part of corporate tax advisory is not a theoretical exercise. It decides whether the current tax plan is genuinely available or whether it needs to be reworked before the next filing cycle. The useful next step is a loss and relief review based on the company’s tax history, its foreign-source income profile and its NRA debt status at 31 December.
First identify the year affected, the original entry and the tax adjustment required. Article 75(3) allows one replacement return for the preceding year by 30 September after the ordinary filing deadline has passed. Other cases can require written notification to the revenue authority; Article 79 extends the correction rules to other errors and relevant adjusting events. Keep a clear reconciliation between the original and corrected return and retain the submission receipt. A correction does not simply move an old tax liability into the current year or remove interest from its original due date. Articles 75, 79 and 80 provide the correction framework.
For example, discovering an omitted supplier invoice requires more than reducing the next return by its amount. Establish the accounting period, whether the expense is deductible, whether it affects a temporary difference and which correction procedure is available. ARG can coordinate the legal treatment with the company’s accountant so the books, tax calculation and explanation to the NRA remain consistent.
Compare the related procedures in this category, including their requirements and the stage at which you need them.
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