Accounting and invoicing for interim managers
Leadership on demand, crisis management and project leadership: interim managers work one to twelve months for a client and bill day rates, supplements and expenses. Saldiqo creates the monthly invoice from days, records travel costs and reminds on long payment terms.
What comes up for interim managers
High day rates, few clients
An assignment brings a lot of turnover with one client. Payment defaults hurt.
Expenses and accommodation
Flat at the place of work, travel and meals are often reimbursed.
Gaps between assignments
Between two assignments no revenue arises. An overview of costs and reserves helps.
How Saldiqo helps
- Monthly invoice from daysRecord days, create the invoice.
- Re-invoice expensesReceipts as expenses, line with the receipt.
- RemindersKeep open invoices in view.
- Overview of income and expensesA report per year or assignment.
Typical invoice lines
Examples that often appear on invoices in this industry. You set the prices yourself.
- Interim management, 21 days in November
- Supplement for travel days
- Accommodation as per receipt
- Travel costs as per receipt
- Standby outside assignment days
- Final report and handover
Tax and invoicing in Ireland
What applies to invoices in Ireland, in short. As of October 2026.
- VAT
- Standard rate 23 %, reduced rates 13.5 % and 9 %, 4.8 % for livestock, and 0 %. Since 1 July 2026 a 9 % rate applies to restaurants, catering, hot takeaway food and hairdressing, excluding alcohol and soft drinks.
- VAT registration
- Registration is required above €42,500 a year for services and above €85,000 for goods, if at least 90 % of turnover comes from goods. Saldiqo leaves VAT off your invoices while you are below the threshold and shows how much room is left.
- What goes on an invoice
- Registered businesses show their VAT number. Sole traders and partnerships providing services show their tax reference number, or their full name and address, on invoices and receipts of €7 or more (section 885 TCA). Companies show their name, CRO number and registered office, and directors’ details on letters, order forms and the website.
- Invoice timing
- Issue a VAT invoice within 15 days after the end of the month in which the supply took place.
- E-invoicing
- From 1 November 2028 every business must be able to receive e-invoices. Issuing is phased in: first for suppliers to large corporates, from November 2029 for businesses trading B2B within the EU, and from 1 July 2030 under the EU VAT in the Digital Age rules. A PDF does not count as an e-invoice, and the technical specifications are not yet published.
- VAT returns
- VAT3 returns are filed every two months through ROS, by the 19th of the following month, or the 23rd when you file online through ROS. Saldiqo does not file returns, your accountant or ROS does.
- Record keeping
- Keep records for 6 years, longer while a review is open.
- Late payment
- Interest on late business payments is the ECB main refinancing rate (2.40 % in the second half of 2026) plus 8 points, so 10.40 %, plus fixed compensation of €40, €70 or €100 depending on the amount owed.
- Getting paid
- IBAN and BIC are on every invoice, plus a SEPA QR code (EPC) for banking apps that can read it.
Frequently asked questions
How do I bill days and expenses?
Days as a line, expenses as further lines with the receipt.
Can I evaluate assignments separately?
Yes, with cost centres per assignment.
Do interim managers in Ireland have to charge VAT?
Once they are registered, yes. Registration is required from the sale that takes turnover over €42,500 a year for services or €85,000 for goods, where at least 90 % of turnover comes from goods. Below those limits Saldiqo leaves VAT off your invoices.
Do interim managers in Ireland need e-invoicing?
Not yet. From 1 November 2028 every business must be able to receive e-invoices. The duty to issue them phases in from the same date for suppliers to large corporates and later for more businesses. PDF invoices do not count as e-invoices.
How long should interim managers keep invoices?
Keep records for 6 years, longer while a review is open. You can store receipts digitally in Saldiqo. The legal duty to keep records stays with you.
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As of October 2026. General information, not legal or tax advice, without guarantee. For your case ask your tax adviser.