This will vary depending on the individual circumstances of your case. An executor has a duty to act in the best interests of the beneficiaries and to act in timely manner – and so they should pay your entitlement as soon as reasonably possible. However, this will vary depending on the size, nature (eg there may be property that needs to be sold) and complexity of the estate in question. Before an estate can be administered, a grant of probate or letters of administration needs to be issued – and this can take several months. Following this, steps can then be taken to liquidise the estate assets, pay debts, taxes, and fees before distribution. If the estate is large and taking a long time to administer, it may be possible to seek an interim distribution.
An executor is not bound to make distributions from the estate in the first year after the deceased died, but after that time beneficiaries are entitled to interest on any outstanding legacies.