Shared Child Expenses in Germany — What Co-Parents Need to Know

In Germany, both parents remain legally obligated to financially support their children after separation or divorce. The Kindesunterhalt (child support) system covers everyday costs, but a significant range of additional expenses — medical, educational, extracurricular — must be managed and shared separately. Without a clear system, these become a persistent source of conflict.

This guide is for co-parents in Germany managing shared expenses, written in English for expat and international families.

The German Legal Framework

German family law is governed primarily by the Bürgerliches Gesetzbuch (BGB) and the Düsseldorfer Tabelle — the standard reference for calculating child support based on income. The non-custodial parent pays Barunterhalt (cash maintenance); the custodial parent provides Naturalunterhalt (care in kind).

Beyond this base, extraordinary expenses (Sonderbedarf and Mehrbedarf) must be agreed and split between both parents. These are not covered by the standard Unterhalt formula.

What Are Extraordinary Expenses in Germany?

• Medical costs — not covered by the Krankenversicherung, including orthodontics, specialist consultations, therapy, glasses
• Educational expenses — private school fees, tutoring, university costs, study materials
• Extracurricular activities — sports clubs, music, arts, language courses
• Childcare — Kita costs above the standard subsidy, after-school care
• Large one-off costs — school trips, camp fees, technology for school

How Extraordinary Costs Are Split

In Germany, extraordinary expenses are typically split in proportion to each parent's net income (bereinigtes Nettoeinkommen). The parent with higher income contributes a larger share. The exact proportion should be documented in a Unterhaltsvereinbarung (maintenance agreement) or ordered by the Familiengericht (family court).

Why Records Matter in German Family Court

German family courts (Familiengerichte) expect documented evidence when extraordinary expense disputes are brought before them. Judges expect both parents to have kept records of costs, communicated expenses at the time of payment, and made reasonable attempts to settle before involving the court.

A shared digital record — timestamped, immutable, and accessible to both parents — is the most defensible form of documentation in these proceedings.

Using CoParent Share in Germany

CoParent Share supports EUR and is used by expat and international co-parents across Germany. It provides a shared, real-time expense record with automatic split calculations and certified PDF exports for family court use.

• Income-proportional split rules — reflecting your bereinigtes Nettoeinkommen ratio
• Real-time shared record — both parents see every expense immediately
• Receipt attachments — attach invoices from Arzt, Kieferorthopäde, or Sportverein
• Monthly settlement with one-tap approval
• Certified PDF exports — for use in Familiengericht proceedings

A neutral, shared record is the most effective way to prevent extraordinary expense disputes from reaching the family court — and the strongest evidence if they do.