Does an Inheritance Affect OAS or the Guaranteed Income Supplement?

If you receive the Guaranteed Income Supplement (GIS) and a parent, spouse or relative has died and left you money, an RRSP or a TFSA, it is natural to worry that the inheritance could shrink your monthly benefit. The worry is reasonable, because GIS is an income-tested benefit and a change in your reported income can change what you receive.

The answer is not the same for every kind of inheritance. What matters is what you actually receive, how it is reported for tax, and when. This article explains how GIS is worked out, how the taxable parts of an estate can matter, how TFSAs are treated, and what to confirm before you spend or move the money.

How GIS is worked out

GIS is based on the previous year's income, and for couples it is based on combined income. That means the year in which money is received and reported matters, not just the amount.

As of October 13, 2026, a single, divorced or widowed person with income under $23,112 can receive up to $1,138.90 a month. A couple where the partner receives the full OAS pension, with combined income under $30,528, can receive up to $685.56 each. Benefit amounts and income limits are adjusted from time to time, so check the current figures before relying on these ones.

Is the inheritance itself income?

People often assume that any lump sum counts as income. In practice, the question is how a particular amount is treated, and different parts of an estate are treated differently. It helps to separate the inheritance itself from the taxable parts and from the income the money earns after you receive it.

Because the rules are specific to each type of asset and to your own tax return, a general article cannot tell you whether your particular inheritance will change your GIS. An accountant or Service Canada can confirm that for your situation.

TFSAs: where the tax rules are clearer

A TFSA beneficiary who is not a successor holder generally pays no tax on TFSA payments up to the fair market value of the TFSA at the date of death. Earnings made after the date of death and before the estate is settled are taxable. For a trust-type TFSA, payments above the fair market value at death are taxable income to the beneficiary and are reported in box 134 of the T4A.

A successor holder is different. A successor holder immediately becomes the new holder, and the TFSA's value at the date of death and later income stay sheltered from tax. A successor can ask the issuer to transfer the funds between TFSAs, and this does not affect their contribution room.

• A surviving spouse or common-law partner who receives a TFSA payout can contribute it to their own TFSA and designate it as an exempt contribution, without using their own contribution room.
• The total exempt contribution cannot exceed the TFSA's fair market value at death.
• The survivor must file Form RC240 with the CRA within 30 days of the contribution, or later if the CRA permits.
• Beneficiaries who are not survivors cannot designate exempt contributions.
• If the deceased had an excess amount in the TFSA, the deceased is taxed 1% per month for each month the excess remains, up to and including the month of death.

Timing and the estate process

An estate trustee who agrees to act is responsible for winding up the deceased's affairs and paying taxes, bills and debts. They collect the assets and distribute what remains. Some assets pass differently: a designated beneficiary, for example on an insurance policy or joint bank account, receives certain assets or funds after death.

This matters for GIS because you may not receive everything at once. Some amounts may reach you quickly, while others wait until the estate is settled. Since GIS uses the previous year's income, it is worth asking the estate trustee roughly when payments will be made and what slips or statements will be issued, so you can plan with your accountant.

What to do next

• Ask the estate trustee, in writing, what you are expected to receive, in what form, and roughly when.
• Keep every statement, T-slip and letter from the estate or financial institution.
• Find out whether each asset is a TFSA, an RRSP or RRIF, a bank account or property, since they are treated differently.
• Before you spend, invest or move the money, ask Service Canada or an accountant how it will affect your GIS in your situation.
• Check your current GIS figures against the latest amounts, since they change.
• If the estate is large, disputed or slow, speak with a lawyer about your rights as a beneficiary.

Frequently asked questions