InvoiceTernInvoiceTern terms and provider
Effective 19 October 2026. Yolleg Ltd, company no. 10455920, 71–75 Shelton Street, London, England WC2H 9JQ, United Kingdom. Contact [email protected]. Independent service without regulator affiliation.
Scope and your review
German domestic positive EUR sales invoices with ordinary 7% or 19% VAT only. XRechnung UBL 2.1 XML; no ZUGFeRD/PDF-A, tax determination, reverse charge, exemptions, credit notes, Peppol sending, government filing, payment collection or tax/legal certification. Only positive German domestic EUR sales with ordinary entered 7%/19% VAT are supported. No ZUGFeRD/PDF-A, credit notes, corrections after release, reverse charge, exemptions, tax-status determination or sending/filing. UBL2.1 XRechnung XML is generated server-side and checked with KoSIT1.6.3 and XRechnung3.0.2 configuration2026-08-31. Accepted validation confirms the selected structural/business rules, not the truth of entries, tax correctness, VAT/IBAN ownership, routing or successful delivery. Owner release freezes invoice data. Manual receipts are records only; no funds move. You supply accurate lawful data, source evidence and independent review. Generated landing images are illustrative, not actual invoices, safety layouts or security results. The service is an administrative/calculation tool, not a legal, tax, safety or security certification service.
Free tier and recurring subscription
Two invoice files, retained drafts, ordinary 7% or 19% VAT calculations, official-rule XML checks and validated XML downloads. One thousand invoice files, owner plus four named staff, preserved history reports and workspace CSV. Invoice Pro costs €19.99 each month or €199.00 each year in EUR, selected before checkout. Annual payment is charged in full. The selected interval renews automatically, without a trial. Prices include applicable tax. Stripe handles card details. Pro requires verified current payment and durable original contract confirmation. Cancel renewal any time for the paid-period end. Owners retain existing records, permitted updates, original downloads, issued versions and JSON after lapse. Additional primary capacity, staff, extra storage, new preserved history reports and workspace CSV require Pro. Existing released invoice XML and validation reports remain downloadable after lapse. Native/web purchases are separate; existing native purchased rights are preserved.
Accounts and shared workspaces
One German domestic business per workspace. Recoverable email accounts use single-use links lasting 15 minutes, with matching-email confirmation. Sessions last up to 7 days; Sign out all devices revokes other sessions. Recovery needs access to your email. Pro includes the owner plus four named staff, with editor or viewer roles. All staff can read the whole selected workspace and files; there are no per-record or client access boundaries. Staff access requires the owner’s active Pro subscription. Only the owner controls business settings, billing, staff and erasure, and final invoice/plan/release reviews. Editors add ordinary records; viewers cannot write. Staff invitations last 7 days, without an invitation email. Removal blocks subsequent server access, not previously exported copies. New history entries are stamped with account and server-received time; imports do not prove historical authenticity.
Storage, retention and erasure
Workspace limits: 20,000 history entries and 16 MB UTF-8 JSON, in addition to plan capacity. Optional PDF originals: free 8 files / 75 MB, Pro 200 / 500 MB, 25 MB per file. Originals are not sanitised, authenticated or parsed as authoritative evidence. Private JPEG API storage: free 2 MB / 30 files, Pro 100 MB / 500 files; 450 KB and 1920 pixels each, six references per record. Draft uploads count. Retained validation/OSV receipts: up to 3,000 checks / 500 MB per workspace, maximum 3 MB each, with a shared service storage budget. JSON contains file references, not original bytes; download originals separately. Keep independent source records. HTTPS and encryption at rest protect server data; this is not end-to-end encryption and authorised support can decrypt it. Owner-only whole-workspace erasure removes live records/files/check receipts for all members. It does not cancel renewal, delete accounts/memberships/billing, revoke exports or erase host/provider backups. No guaranteed statutory hosting period, recovery archive or offline sync. Account-specific backup geography, complete processing agreements and backup deletion schedule remain unconfirmed. Keep independent originals and contact support about retention/deletion.
External checks
Invoice XML is validated on our server using isolated official rule files; it is not sent to a government recipient.
Cancellation and initial withdrawal
Cancel renewal in the secure Stripe portal or send a declaration at withdrawal.html or [email protected]. A receipt acknowledgment is not itself completed cancellation/refund; we match and process promptly. We offer a full initial-purchase refund if you withdraw within 14 days, including after immediate use; immediate access does not waive this right. Provide name, payment email, purchase reference or date/plan and a clear request, without card details or sign-in tokens. Erasure does not cancel billing; cancellation does not erase records. Mandatory rights remain unchanged.
Availability and disputes
Maintenance, incidents and provider outages can interrupt service. No business outcome, regulatory result or perpetual availability is guaranteed. Nothing excludes liability that cannot lawfully be excluded. England and Wales law applies subject to mandatory local protections and court rights. Contact [email protected] for support or complaints.