Who this is for
First-year EU companies that invoice customers and suddenly discover VAT is a calendar, not a single form.
The short answer
Treat VAT as a repeating operating cycle: evidence in, books closed, return filed, payment made. Miss one link and the rest becomes expensive.
Build a simple rhythm
- Daily or weekly: Capture invoices and bank feeds (sales and costs).
- Monthly: Reconcile. Fix missing invoices before the period closes.
- Filing cycle: Match your local return frequency (monthly or quarterly is common; confirm for your regime).
- Annual: Align VAT history with the annual accounts close.
Your accountant sets the exact dates. Your job is clean evidence on time.
What founders usually under-prepare
- Customer location and B2B vs B2C evidence
- Reverse-charge situations documented in the invoice trail
- Foreign cost invoices without VAT numbers or translations when needed
- Intercompany charges with no contract or board paper
OSS / IOSS (when relevant)
If you sell digitally or ship goods to consumers across the EU, ask early whether OSS or IOSS applies. Do not invent a regime from a blog post. A wrong scheme is worse than a slow correct one.
Bookkeeping hygiene that saves the annual close
- One chart of accounts agreed with the accountant
- Named folders: sales, costs, bank, payroll, contracts
- Founder expenses with receipts attached the same week
- No "I'll fix it at year end"
Sample calendar (illustrative only)
| Window | Action |
|---|---|
| Week 1 of month | Prior month books freeze for review |
| Mid filing month | Return draft from accountant |
| Filing deadline | Submit and pay |
| Quarterly | Review OSS / cross-border flags if used |
Replace with your jurisdiction dates.
How FORMVIA helps
A compliance calendar in the workspace, document vault for evidence, and an accounting partner path. We do not replace your tax advisor.
Disclaimer
Not tax advice. VAT rules are jurisdiction-specific and change. Confirm with a licensed accountant.
Sources to check at publish
- National tax authority VAT calendars
- EU Commission pages on OSS / IOSS (where applicable)