Avoid Surprises Several Times a Year
Temporary Tax Periods and Preparation
Temporary tax is the advance payment of annual tax. We explained how the periods work, how the tax base is formed, and which records need to be completed at the end of the period.

Advance tax is the pre-paid portion of your annual income or corporate tax. Instead of waiting for the end of the year, the government collects the tax periodically.
The amounts you pay are deducted from your year-end declaration. In other words, it is not an extra tax, but an early-paid tax.
How do the periods work?
Advance tax periods are cumulative. This means they do not start from zero each period; calculations are made over the total earnings from the beginning of the year to the end of that period, and previously paid amounts are subtracted.
The practical result of this is: if a business that is going well in the first period incurs a loss in the subsequent period, the calculation corrects itself. The overpaid amount is offset in the next period.
The number of periods and declaration dates can change with legislation; regulations have been made on this matter in recent years. Get the current calendar from your financial advisor.
Where does the tax base come from?
The advance tax base is calculated over your periodic earnings. Earnings are found by subtracting your expenses from your revenues.
The critical point here is: an unrecorded expense is a non-existent expense. Slips in the cash drawer, paid but unprocessed invoices, and forgotten bank fees make the tax base appear higher than it is. The result: paying more tax than necessary.
Similarly, under-recorded revenue creates a risk in the opposite direction and requires a correction in the subsequent period.
Therefore, advance tax is where basic accounting discipline finds its most concrete application.
Period-end checklist
Were all sales documents issued? If there are jobs delivered but not yet invoiced, the time rule comes into play; check the article on invoice issuance deadlines.
Were incoming invoices recorded? Supplier invoices waiting in the inbox are the most frequently missed item.
Were receipts processed? Fuel, meals, stationery, shipping. Small amounts add up to a significant figure when accumulated over the period. The expense receipt scanning article eases this burden.
Do bank transactions match? If there is a transaction on the statement that is not in the system, it means the record is missing. Check the bank and cash management article.
Was a stock count performed? Period-end inventory value directly affects earnings. We covered this topic in the inventory tracking article.
Planning the payment
Advance tax means a large cash outflow at certain points of the year in terms of cash flow. If you had a profitable period, this amount is far from small.
Well-run businesses do not experience this payment as a surprise; they calculate the estimated amount during the period and set it aside.
You can check out the expected collections and payments report article to view the upcoming period's cash flow table.
Frequently asked questions
Do I pay advance tax if I made a loss?
If there is no profit, there is no tax due. However, the tax return must still be filed.
Can I get a refund for the excess advance tax I paid?
It is offset in the annual return; the remaining portion can be refunded or offset against other tax debts.
What happens if I declare the tax base incorrectly?
For discrepancies exceeding a certain percentage, official or supplementary assessments may come into question. Make calculations based on real records, not estimates.
Do sole proprietorships also pay it?
Commercial earnings taxed under the actual method and self-employed professionals are subject to advance tax. The situation is different for simple-procedure taxpayers; check the simple procedure article.
Advance tax is the test of how up-to-date your basic accounting is. Records completed during the period ensure you do not pay extra taxes at the end of the period.
Open a free account on Qolay.App and finalize your income and expenses before the period closes.
