How do I invoice monthly guard hours?

Security guard company Q&A

How do I invoice monthly guard hours?

Short answer

  1. At month-end, the system totals confirmed guard hours from each site's shift roster.
  2. It automatically applies the site's contract rate — confirmed hourly or a fixed monthly package.
  3. It generates the invoice for each client, with a detailed report per post and hour.
  4. An online payment link is attached, for fast card payment.
  5. The payment reconciles automatically against the site, with no manual re-entry.

What the law says (brief)

  • Law 227/2015 on the Fiscal Code — the rules for issuing and the mandatory content of an invoice for services rendered.
  • Law 333/2003 on the protection of objectives — the billed rate must match the services actually delivered under the contract and security plan.

Practical examples

  • Example: a site has 2 contracted posts at an hourly rate. At month-end, the system totals 720 confirmed hours from the shift roster (not estimated hours) and automatically generates the invoice, with a detailed report per post and day, ready to send to the client.

Common mistakes

  • Billing is based on the planned roster, not actually confirmed shifts — discrepancies only surface at reconciliation.
  • The rate is recalculated manually every month, with a risk of error applying contract terms.
  • There's no payment link on the invoice, and collection depends on manual follow-up.

How 4guards helps

  • Automatic billing from confirmed shifts, through 4invoices.net, at the site's contract rate.
  • Choose the billing model per site — confirmed hourly or a fixed monthly subscription.
  • A Stripe payment link on every invoice, with automatic payment reconciliation.