Child Support Calculator

In CIS countries, child support is calculated as a percentage of the payer's net monthly income: 25% for 1 child, 33% for 2 children, 50% for 3 or more. In France, the Ministry of Justice publishes a reference table based on income and custody arrangement. In the UK, the Child Maintenance Service uses a formula based on gross income and nights of care. In the US, most states use either an income shares model or a percentage-of-income model.

No. This calculator provides an estimate for informational purposes only. The actual amount is determined by a court and may differ based on individual circumstances, additional costs (healthcare, education, extracurricular activities), custody arrangement, and the financial situation of both parents.

In Kazakhstan, child support is governed by the Marriage and Family Code (Кодекс РК о браке и семье). The rates are: 1 child — 25% of net income, 2 children — 33%, 3 or more — 50%. Fixed awards are anchored to the child's subsistence minimum — ₸50,851 a month in 2026 — and are indexed to the monthly calculation index (МРП, ₸4,325 in 2026) under Art. 173 of the Code. Courts set a fixed sum when income is irregular. In Almaty and Astana amounts are usually higher because of the cost of living.

If income is variable (self-employed, freelance) or unknown, courts typically use either: the average monthly income over the past 12 months; a fixed sum (твёрдая денежная сумма) pegged to the subsistence minimum for a child; or the average wage in the region. In Russia and Kazakhstan, if no income is declared, alimony is calculated from the average wage statistic published by Rosstat/Statistics Kazakhstan.

Yes. Either parent can apply to the court to increase or decrease alimony if there is a significant change in financial circumstances — job loss, disability, new children, change in the child's needs, or a significant increase in the payer's income. Changes are not retroactive — they apply from the date of the new court order.

There is no absolute statutory minimum in Russia. However, courts rarely set amounts below 50% of the regional subsistence minimum for a child (прожиточный минимум на ребёнка). In 2026 the federal child subsistence minimum is ₽18,371 a month, so the practical floor for one child is around ₽9,200. Regions set their own figure — Moscow is at ₽21,903, and awards there are correspondingly higher.

In Kazakhstan, child support cannot be set below the minimum subsistence level (МПМ — минимальный прожиточный минимум) for a child for the relevant period. In 2026 the subsistence minimum is ₸50,851 a month, so courts work from a floor of roughly ₸25,000 for one child. Since 2025 fixed awards are indexed automatically. Courts in Almaty and Astana may set higher amounts.

No. Child support (алименты на ребёнка) is paid for the child's benefit and is based on the payer's income and number of children. Spousal support (алименты на супруга/супругу) is separate — it may be ordered when one spouse cannot work (caring for a young child, disability) and follows different legal criteria in each country.

In France, pension alimentaire is determined by the family court judge using a reference table (barème indicatif) published by the Ministry of Justice. The amount depends on the payer's net income, the custody arrangement (alternating/full custody), and the number of children. For example, for 1 child with full custody of the other parent, a net income of €2,500/month suggests around €200–350/month. The French model is more discretionary than the CIS percentage system.

In Russia: apply to bailiffs (судебные приставы) who can freeze bank accounts, restrict travel, and garnish wages. In Kazakhstan: the Enforcement Service can seize assets and ban international travel for debts over 12 months. In France: the ARIPA agency (Agence de Recouvrement des Impayés de Pension Alimentaire) can directly recover and advance pension alimentaire to the custodial parent. In Ukraine: apply to state executors (ДВС) with the court order.