Which dates does it use?
- VAT 4 return: the 10th day of the second month after the quarter ends, moved to the next working day after a weekend or holiday. The VAT return panel shows the same due date.
- VIES statement: the 15th of the following month, next working day after a weekend or Cyprus holiday.
- Monthly PAYE return and social insurance: the end of the following month.
- IR7, IR4, IR1 and Provisional tax (IR6): from the Tax Department's dates for each tax year, with announced extensions on top.
When a no-charge period was announced, the line says "Due …; no interest or charges if filed and paid by …". A date less than 14 days away shows in amber.
Are payroll dates shown too?
Yes. In Accounting → Payroll, the Payroll calendar shows the 2026 deadlines for income tax and social insurance: "Monthly deadlines for income tax and social insurance. Nothing is filed or paid from here."
What is not covered?
The yearly extension of the first provisional-tax instalment is not shown. Check those dates and your provisional tax estimate with your accountant.
Explanation written from the Deline app's own screens and texts (build eba146497 (Deline cf723fe1f)); it has no steps to check.