We assess the payment type, applicable tax treatment and supporting evidence, then coordinate declarations, payment deadlines and tax certificates.

A Bulgarian company wanted its withholding tax work to be properly supported from the outset. ARG connected the technical analysis to the returns, documents and subsequent decisions it affected. When the task was finished, the file was better organised and the process for maintaining it was clearer to the people involved.
That practical need is common in cross-border payments. A foreign invoice is not automatically subject to Bulgarian withholding tax. The payment category, Bulgarian-source connection, permanent establishment position, tax base, available relief and filing responsibility must be considered together. This review helps turn those questions into a workable process for the company and the non-resident recipient.
ARG can help when you need to
Identify the foreign legal entity, residence and the exact Bulgarian-source category. Confirm whether this income belongs to its Bulgarian permanent establishment.
Supply contracts, licences, deliverables, accrual records and gross-to-net terms. A software copy, royalty, consultancy fee and asset disposal can require different treatment.
Prepare residence, income-entitlement and ownership evidence for the specific exemption or treaty. Track annual payer-to-recipient income for the appropriate procedural route.
Use the distribution-decision quarter for Article 194 and the accrual quarter for Article 195. Declare and pay by the end of the month following that calendar quarter; treaty residence alone does not extend the deadline.
Withholding tax, or данък при източника, collects Bulgarian tax on specified income of a foreign legal entity through the person responsible for deduction and remittance. Articles 12, 194 and 195 of the Corporate Income Tax Act (ЗКПО) identify the source, covered income and recipient. For Article 195 income, accrual can trigger the obligation before a bank payment. Income attributable to the recipient’s Bulgarian permanent establishment follows a different analysis. The current Act is the starting point for classifying the contract before it is booked.
Common categories requiring a review include:
The list is not exhaustive: rental, specified asset disposals and other statutory categories can also matter. Check the particular source rule rather than treating every foreign invoice as taxable. The NRA explains the categories and payer responsibilities.
Two exclusions matter at the threshold stage.
First, the payment must be Bulgarian-source in the statutory sense. If the income is not Bulgarian-source, the withholding regime does not apply on that basis.
Second, even where the payer is Bulgarian, the regime applies only if the income is not earned through a permanent establishment in Bulgaria. If the non-resident earns the income through such an establishment, the payment is generally taxed through the permanent-establishment framework instead of as simple source withholding.
That distinction determines whether the Bulgarian payer must act as withholding agent at all. A service fee invoice from a foreign supplier may be inside the regime if it is a covered Bulgarian-source payment to a non-resident without a Bulgarian permanent establishment. The same commercial arrangement may sit outside the regime if the foreign recipient is actually operating through a Bulgarian permanent establishment for that income.
In other words, the first task is not rate calculation. It is classification. ARG’s review identifies who the recipient is for tax purposes, where the income is sourced, and whether the payment belongs to one of the statutory categories. If the answer is yes, the payment needs withholding-tax handling. If the answer is no, the file should show why the regime does not apply.
Clients often assume that every cross-border invoice from a foreign counterparty is automatically subject to withholding tax. That is too broad. The real question is whether the payment is one of the listed income types and whether the recipient is outside the Bulgarian permanent-establishment net. Those two points drive the rest of the analysis.
The Bulgarian withholding-tax base is usually the gross amount, but the statute uses different measurement rules for some transactions, so the contract wording and the transaction structure can change the taxable figure. The governing provisions are in the Bulgarian Corporate Income Tax Act (ЗКПО), and the National Revenue Agency’s guidance reflects the same distinctions. Official Gazette text and NRA guidance
For non-resident legal persons, the withholding-tax base is generally the gross income. That means the payer does not net off normal business expenses before applying the tax. For dividends, the base is the gross amount of the distributed dividend. For liquidation proceeds, the base is not simply the cash paid out. It is the difference between the market value of what the shareholder is to receive and the documented acquisition cost of the shares or interests.
The calculation also needs attention in the following situations:
That is why contract drafting matters. A payment described as service fee income, royalty income or interest income may look similar commercially, but the tax base can differ depending on how the legal obligation is documented and how the income is characterized under the statute.
If a Bulgarian company pays a foreign consultant a fixed invoice for technical services, the review usually starts from the gross invoice amount. If the same cross-border deal is actually structured as a disposal of an asset or an interest-bearing financing arrangement, the taxable base may be determined by gain or by a statutory substitute rule instead of by the invoice total.
The base determines the tax cost, the remittance amount and the documentation that must support the file. A payer can misapply the rate and still get the base wrong, which creates a second error in the declaration and payment trail. For that reason, ARG would check the contract, the payment description, the accounting entries and the underlying transaction to confirm whether the correct base is the gross amount, the dividend amount, the liquidation spread, or one of the statutory substitutes.
The contract’s gross or net price matters to who bears the tax cost. If the supplier is promised a fixed net receipt, a gross-up clause may increase the payer’s total cost. Resolve that point before signing; it does not change the statutory obligation to classify and remit the tax.
That is the practical value of this service at the outset. It tells the Bulgarian payer which number to tax, not just whether tax is due.
The Act’s Additional Provisions, paragraph 1, point 9, define technical-service fees to include installation of tangible assets, consultancy and marketing research. The ordinary word “technical” is not the legal test. Paragraph 1, point 8, defines royalties by the rights granted and includes specified intellectual property, equipment and know-how. A software copy supplied without reproduction, distribution, modification or other commercial exploitation rights is expressly distinguished from a royalty. Read the licence and deliverables, not only the invoice heading. These statutory definitions determine which facts the payer needs.
For a mixed technology contract, record separately what is licensed, what is developed or installed, who performs the work and how the price is allocated. Check the relevant treaty’s own classification next: a domestic technical-service category does not guarantee a separate treaty withholding right. Keep the contract, actual delivery evidence, allocation calculation and recipient’s residence documents together.
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.
The domestic rate for covered corporate dividends and liquidation shares is 5% under Article 200; it is not a special reduction requiring a treaty. Article 194(3)(3) excludes distributions to a foreign legal entity tax resident in the EU or EEA, except hidden profit distributions. The separate interest-and-royalty exemption has different conditions. Establish the recipient’s legal status and residence before selecting the route. Articles 194, 195 and 200 set out these distinctions.
That means there are two different questions to answer before the payer applies a rate. First, is the recipient within the EU or EEA dividend exemption. Second, if not, is there a treaty route that reduces the domestic withholding burden. The first is a Bulgarian statutory exemption for qualifying corporate recipients. The second depends on treaty residence and the usual entitlement analysis for treaty benefits. The practical point is that the payer should not assume a lower rate just because the counterparty is foreign. The file has to show why the lower treatment is available.
ARG would focus on the legal status of the recipient, the nature of the distribution and the document trail that supports the claim for relief. The key issue is not only where the recipient is established, but whether it is the kind of legal person that can rely on the exemption or treaty position in the first place. For dividends, the domestic EU and EEA exemption is narrower and cleaner than a general treaty analysis, so it often becomes the first route to test.
A useful practical distinction is this. If the recipient is a qualifying EU or EEA legal person, the Bulgarian payer may be able to treat the dividend as exempt under domestic law. If the recipient is outside that zone, the payer usually has to look to the treaty position and the supporting residence evidence instead. That is where the withholding-tax review becomes more than a rate check. It becomes a proof exercise.
The NRA’s guidance also matters because it shows how the administration expects the rules to be applied in practice. It confirms the covered income categories, the 5 percent dividend treatment, the 10 percent rate for the other covered items and the availability of the EU and EEA dividend exemption. For a Bulgarian payer, that is the operational starting point when deciding whether a dividend payment should be taxed, exempted or documented for later relief.
If the recipient cannot prove the legal basis for relief, the payer should not treat the lower rate as automatic.
Treaty relief requires evidence of the relevant residence, entitlement to the income, absence of a Bulgarian establishment to which it belongs and any treaty-specific conditions. Articles 135–142 of the Tax and Social Insurance Procedure Code govern the process. Depending on the annual amount from the payer to that recipient, Article 142 can allow proof before the payer or require the formal NRA route. Track the annual total rather than examining each invoice in isolation. The Code’s treaty procedure also provides the route after tax has already been paid.
The quarterly withholding-tax declaration is normally filed by the payer, because the payer is the withholding agent when the Bulgarian company is the one obliged to withhold and remit the tax. The statute also covers the less common situation where the payer is not registered for tax purposes. In that case, the declaration goes to the Sofia Territorial Directorate of the National Revenue Agency. If the payer is not obliged to withhold and remit the tax, the recipient files the declaration instead. Official Gazette text NRA guidance
That filing rule matters because responsibility and evidence follow the person who must make the declaration. ARG would first identify who is legally responsible for withholding. If the Bulgarian payer is the withholding agent, it should keep the income classification, base calculation and payment records aligned with the declaration. If the payer is outside the registration or withholding role, the recipient must be prepared to step into the filing position and support the claim.
A certificate confirming tax remitted under the act may be issued on request in a standard form by the competent NRA territorial directorate. The NRA guidance adds a practical rule. The certificate is issued by the territorial directorate where the declaration is filed or should be filed. That is useful where the recipient needs formal proof that Bulgarian withholding tax was actually accounted for.
For a non-resident recipient, the certificate is often part of the commercial paperwork that supports foreign tax credit claims, internal audit trails or group reporting. It is not just a tax form. It is the written record that the Bulgarian tax file was handled through the proper office. If the declaration went to Sofia because the payer was not tax registered, the certificate request should be directed consistently with that filing route.
A practical sequence is usually this.
For ARG, the value of this stage is control over the paper trail. A technically correct withholding position can still be weak if the declaration is filed in the wrong place or the certificate request is separated from the underlying payment record. The result is usually an avoidable follow-up with the tax office rather than a clean file.
If the client expects treaty relief or an EU or EEA exemption, the declaration and certificate route should be planned together, because the office that handles the filing is the office that can later issue the proof of remittance.
Article 202 requires payment by the end of the month after the relevant quarter: the distribution-decision quarter for Article 194, and the income-accrual quarter for Article 195. Article 201 governs the related declaration. Treaty residence does not itself create a three-month extension. Establish the legal trigger from the resolution, contract and accounting record, then assign the declaration and remittance to the responsible person. The current Articles 201–202 govern this calendar.
An accrued royalty, interest charge or technical-service fee can enter the withholding calendar before it is paid. Conversely, Article 195(5) excludes advance payments in connection with the covered income from withholding at that advance stage. The description “advance” must match the real transaction and accounting treatment; it cannot be used to postpone tax on income that has already accrued. Reconcile both events with the eventual invoice.
If the company treats the wrong date as the trigger, the declaration and the remittance can drift apart. That creates a filing issue even where the tax rate and base were otherwise correct. The practical task is to make the tax calendar follow the legal trigger, not the invoice date or the bank transfer date by habit.
If treaty evidence is incomplete near the deadline, determine the legally supportable withholding position and the available later refund route. Do not treat an application or an expected residence certificate as an automatic suspension of payment. Record the evidence still needed, the applicable procedure and who will obtain it from the recipient.
For example, an ordinary dividend resolution in June ordinarily makes remittance due by the end of July under Article 202. A royalty accrued in September ordinarily follows the end-of-October deadline, even if the supplier is paid later. A qualifying exemption or treaty relief can change the amount due, but foreign residence alone does not move those dates.
For ARG, the final decision point is usually this. Once the income category, base, relief route and filing responsibility are settled, the remittance deadline becomes a control item, not an afterthought. That is what keeps the withholding file useful for the company, the recipient and any later tax review.
Article 195(7)–(12) requires a qualifying EU beneficial owner or qualifying EU permanent establishment, the prescribed company and tax status, and the statutory association. The capital test generally requires a direct 25% relationship, or a qualifying common holder with at least 25% in both, continuously for two years. Relief before that period ends has conditions; breaking the holding period can revive 10% tax and late-payment interest. Review ownership changes and the recipient’s ability to use the income before relying on the exemption. It is not the old reduced 5% regime, and it is not a general exemption for every EU invoice.
Eligible EU or EEA corporate recipients can separately elect Article 202a annual recalculation of specified withholding income on a resident-company basis. It covers all relevant income for the year, has a return deadline of 31 December of the following year and limits the refundable difference by the foreign-credit rules. Keep this election separate from a treaty overpayment refund and from the certificate proving Bulgarian tax already remitted.
Compare the related procedures in this category, including their requirements and the stage at which you need them.