The basic formula is Separation Date Value minus Marriage Date Value equals Matrimonial Portion.

Calculating the matrimonial portion of a LIRA follows this fundamental formula:

Value at Separation Date – Value at Marriage Date = Matrimonial Portion

However, several factors can complicate this calculation:

  • If the LIRA was created during the marriage from a pension transfer
  • When contributions were made during the marriage
  • If withdrawals occurred during the relationship
  • When the account experienced significant market fluctuations

For complex situations, professional valuation from a financial analyst specializing in divorce matters is recommended. These experts can provide detailed reports that account for all relevant factors and help ensure an equitable division of assets.