Porezni savjetnik common mistakes
Porezni savjetnik · Understand the traps and how to avoid them.
Applying the corporate income tax rate to the gross profit figure without first reconciling accounting profit to the tax base (adding back non-deductible expenses, entertaining costs, fines, and adjusting for tax-exempt income and prior-year losses).
Candidates carry over financial-accounting habits and treat 'profit before tax' from the P&L as the tax base, forgetting that the tax base is a separately constructed legal figure under the Profit Tax Act with its own add-back and deduction rules.
What to do instead
Always build the reconciliation line by line: start from accounting profit, add non-deductible items (50% of entertainment, fines, undeclared liabilities), deduct tax-exempt items and tax losses carried forward within the statutory limit, then apply the rate. Practise at least ten full reconciliations from a trial balance.
Treating input VAT as fully deductible on mixed-use purchases (vehicles, real estate, entertainment) without applying the statutory apportionment or the partial-deduction percentage.
Candidates learn the general 'input tax is deductible' rule first and then under-weight the exceptions for mixed business/non-business use, which are tested precisely because they are counterintuitive.
What to do instead
Memorise the categories with restricted or apportioned deduction, and for each one state the mechanism (percentage cap, apportionment key, exclusion). When you see a mixed-use fact pattern, write the applicable percentage next to the amount before computing.
Missing the place-of-supply analysis and applying domestic VAT to a cross-border service or intra-EU transaction without first determining whether the supply is B2B or B2C and where it is deemed to take place.
Candidates jump straight to the rate and the invoice, skipping the threshold question of whether the transaction is even within the domestic VAT net; place-of-supply rules feel abstract compared with rate tables.
What to do instead
Adopt a fixed sequence for every VAT question: (1) is there a taxable supply, (2) who is the customer (B2B/B2C), (3) place of supply, (4) chargeable event and rate, (5) who accounts for the tax (reverse charge or supplier). Answer in that order before touching numbers.
Confusing the personal income tax treatment of different income categories - e.g. taxing a capital gain or rental income at the employment-income schedule, or forgetting the annual return obligation for self-assessed income.
Candidates memorise one rate and one allowance and then apply them to every income type, ignoring that Croatian personal income tax is scheduler with separate bases, rates and reporting duties per category.
What to do instead
Build a one-page matrix of income categories (employment, self-employment, property and property rights, capital, other) with columns for the tax base, the deductible costs, the rate, the reporting deadline and who reports. Drill fact patterns that mix two categories in one year.
Applying a double tax treaty without first checking the taxpayer's residence and the tie-breaker rules, or granting treaty benefits without the procedural prerequisites (residence certificate, beneficial ownership).
Candidates treat the treaty as an automatic rate discount and forget that treaty relief is conditional, that the distributive rules allocate taxing rights rather than eliminate tax, and that the domestic law must be applied first and then overridden only to the extent the treaty so provides.
What to do instead
For every treaty question, run the sequence: domestic law result, treaty distributive article, tie-breaker if dual resident, relief method (exemption or credit), then procedural conditions. Practise the residence tie-breaker and the beneficial-ownership test as separate drills.
Mixing up the tax procedure deadlines and remedies - filing an appeal against a first-instance assessment within the wrong period, or appealing to the wrong body instead of using the objection and then the administrative dispute route.
The Tax Procedure Act has its own hierarchy of remedies and short, non-extendable periods, and candidates blend them with general administrative procedure deadlines they learned elsewhere.
What to do instead
Draw the remedy flowchart from memory: assessment, objection to the first-instance body within the statutory period, decision on the objection, then administrative dispute before the court. Write the number of days next to each arrow and rehearse with a dated fact pattern.
Ignoring the timing and documentation rules for deductible expenses and for the recognition of income - deducting an expense in the wrong period or without the prescribed documentation, and mis-stating the tax base as a result.
Candidates focus on whether an expense is economically real rather than whether it satisfies the formal conditions (proper invoice, business purpose, arm's-length support for related-party charges) and the accrual timing rules.
What to do instead
For each expense in an exercise, ask three questions: is it documented, is it for business purposes, and in which period does it belong. Keep a checklist of items requiring special documentation (related-party transactions, provisions, impairment, representation).
Overlooking the tax consequences of real estate and other non-income taxes in a transaction - e.g. forgetting real estate transfer tax or the property tax implications when advising on a purchase, or treating social contributions as separate from the employment income base.
Candidates silo each tax and answer only the tax named in the question, missing that a single transaction triggers several levies and that contributions are computed on the same base as employment income.
What to do instead
When a fact pattern involves a transaction, list every tax that could attach (income, VAT, real estate transfer, property, contributions) before answering. Build a transaction checklist you reuse for every scenario.
Quoting a rate, threshold or allowance from an outdated year instead of the year stated in the question, and failing to state which year's rules are being applied.
Candidates revise from older summaries and do not anchor to the tax year in the prompt; rates, brackets and thresholds change and the exam often tests the current year specifically.
What to do instead
Make it a habit to write the tax year at the top of your working and to cite the rule as 'for year X'. Keep a single up-to-date table of rates and thresholds per year and check it before answering any computational question.
Giving a conclusion without the legal basis - answering 'the expense is deductible' or 'the transaction is exempt' without naming the provision, the conditions and the consequence for the tax return.
Candidates optimise for the final number and treat the advisory part of the exam as filler, whereas the advisory domain rewards structured reasoning that a client could act on.
What to do instead
Use a fixed answer template: facts, issue, applicable rule, analysis, conclusion, and practical next step (filing, documentation, deadline). Even in computational questions, add one sentence naming the rule relied on.