Does a kitchen or bathroom remodel need GFCI outlets?

Yes, where your state or town enforces the 2021 International Residential Code. That model code says receptacles installed in bathrooms, and receptacles that serve countertop surfaces, shall have ground-fault circuit-interrupter protection for personnel, and that alterations shall conform to the requirements for a new structure. Its sections and a CPSC fact sheet are quoted below in their own words.

Source: 2021 International Residential Code, Chapter 39 Power and Lighting Distribution, section E3902, International Code Council online text, read 22 October 2026 (our saved browser copy, as read on 2026-10-22).
Source: 2021 International Residential Code, Chapter 1 Scope and Administration, International Code Council online text, read 22 October 2026 (our saved browser copy, as read on 2026-10-22).

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Key facts

2021 IRC E3902.1: "125-volt through 250-volt receptacles installed in bathrooms and supplied by single-phase branch circuits rated 150 volts or less to ground shall have ground-fault circuit-interrupter protection for personnel."
Source: 2021 International Residential Code, Chapter 39 Power and Lighting Distribution, section E3902, International Code Council online text, read 22 October 2026 (our saved browser copy, as read on 2026-10-22).
2021 IRC E3902.6: "125-volt through 250-volt receptacles that serve countertop surfaces and are supplied by single-phase branch circuits rated 150 volts or less to ground shall have ground-fault circuit-interrupter protection for personnel."
Source: 2021 International Residential Code, Chapter 39 Power and Lighting Distribution, section E3902, International Code Council online text, read 22 October 2026 (our saved browser copy, as read on 2026-10-22).
2021 IRC R102.7.1: "Additions, alterations or repairs to any structure shall conform to the requirements for a new structure without requiring the existing structure to comply with the requirements of this code, unless otherwise stated."
Source: 2021 International Residential Code, Chapter 1 Scope and Administration, International Code Council online text, read 22 October 2026 (our saved browser copy, as read on 2026-10-22).
CPSC fact sheet What Is a GFCI?: "The NEC typically only applies to new construction/major renovations."
Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.

Which bathroom receptacles need GFCI protection under the IRC?

All of the bathroom receptacles that section E3902.1 covers, and any receptacle within the distance of a tub or shower that section E3902.8 sets. The 2021 International Residential Code (IRC), in the International Code Council's online text read 22 October 2026, says: "E3902.1 Bathroom receptacles." "125-volt through 250-volt receptacles installed in bathrooms and supplied by single-phase branch circuits rated 150 volts or less to ground shall have ground-fault circuit-interrupter protection for personnel."

The next bathroom section, in its own words: "E3902.8 Bathtub or shower stall receptacles." "125-volt through 250-volt receptacles that are located within 6 feet (1829 mm) of the outside edge of a bathtub or shower stall and supplied by single-phase branch circuits rated 150 volts or less to ground shall have ground-fault circuit-interrupter protection for personnel."

In our reading, the tub and shower section matters when a remodel puts a receptacle in a hallway or bedroom wall that sits near a tub or shower, outside the bathroom itself.

Which kitchen outlets does the IRC list for GFCI protection?

Countertop receptacles, receptacles near the sink and the dishwasher outlet are each named in their own section. Section E3902.6, read 22 October 2026: "E3902.6 Kitchen receptacles." "125-volt through 250-volt receptacles that serve countertop surfaces and are supplied by single-phase branch circuits rated 150 volts or less to ground shall have ground-fault circuit-interrupter protection for personnel."

Section E3902.7, on sinks: "E3902.7 Sink receptacles." "125-volt through 250-volt receptacles that are located within 6 feet (1829 mm) of the top inside edge of the bowl of the sink and supplied by single-phase branch circuits rated 150 volts or less to ground shall have ground-fault circuit-interrupter protection for personnel."

Section E3902.11, on the dishwasher: "E3902.11 Kitchen dishwasher branch circuit." "Ground-fault circuit-interrupter protection shall be provided for outlets supplied by branch circuits rated 150 volts or less to ground that supply dishwashers in dwelling unit locations."

If the remodel adds a heated floor in either room, section E3902.14 is quoted here in its own words: "E3902.14 Electrically heated floors." "Ground-fault circuit-interrupter protection for personnel shall be provided for electric heating cables embedded in concrete or poured masonry floors in bathrooms, kitchens and in hydromassage bathtub, spa and hot tub locations."

Which GFCI rules apply to remodeling an older room?

For the new work, in the IRC text quoted here, yes: section R102.7.1 says additions, alterations or repairs shall conform to the requirements for a new structure, without requiring the existing structure to comply, unless otherwise stated. In its own words: "R102.7.1 Additions, alterations or repairs." "Additions, alterations or repairs to any structure shall conform to the requirements for a new structure without requiring the existing structure to comply with the requirements of this code, unless otherwise stated."

Source: 2021 International Residential Code, Chapter 1 Scope and Administration, International Code Council online text, read 22 October 2026 (our saved browser copy, as read on 2026-10-22).

The U.S. Consumer Product Safety Commission's fact sheet What Is a GFCI?, read 22 October 2026, says of the National Electrical Code: "The NEC typically only applies to new construction/major renovations." "The coverage of GFCI protection has gradually increased over the years."

Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.

The same sheet gives a list headed "NEC GFCI requirements (and effective date):" with, among its items, "Bathrooms (since 1975)", "Kitchens (since 1987)" and "Laundry and utility sinks (since 2005)".

Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.

In our reading, the sheet's list is a history of when each location was added, so it is a guide to why an older kitchen or bathroom may have no GFCI protection, not a list of what today's code edition requires.

Only where a state, county or town has adopted it, in our reading of section R101.1, which leaves a blank for the adopting place's name, and the edition adopted matters. Its words: "These provisions shall be known as the Residential Code for One- and Two-family Dwellings of [NAME OF JURISDICTION], and shall be cited as such and will be referred to herein as"

Source: 2021 International Residential Code, Chapter 1 Scope and Administration, International Code Council online text, read 22 October 2026 (our saved browser copy, as read on 2026-10-22).

The CPSC fact sheet's footnote on the National Electrical Code (NFPA 70) says: "It is the most widely adopted building code for requirements for electrical system installations in the U.S." "It may be adopted into law by states, counties or local jurisdictions for enforcement by inspection authorities and is currently revised every three years."

Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.

The IRC's GFCI sections carry bracketed references; in our reading, these point to the matching sections of the National Electrical Code. The NEC's own text is not quoted on this page, so ask your building department which NEC edition it enforces.

Does the GFCI have to be in the outlet itself?

No. The IRC sets where the device goes, and the CPSC sheet describes both a receptacle type and a circuit breaker type. Section E3902.18, read 22 October 2026: "E3902.18 Location of ground-fault circuit interrupters." "Ground-fault circuit interrupters shall be installed in a readily accessible location."

The CPSC sheet describes the receptacle type as "Used in place of the standard duplex receptacle."

Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.

And the breaker type: "A circuit breaker with a built-in GFCI may be installed in a panel box to add protection to the circuits it supplies."

Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.

On what the device is for, the sheet says: "The GFCI is designed to protect people from severe or fatal electric shocks"

Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.

What should you ask before a kitchen or bath remodel starts?

Find out which code edition your building department enforces, then make each bid say how every bathroom, countertop, sink and dishwasher outlet will be protected. This is practical reasoning, not legal advice and not a finding from any agency.

Call your city or county building department and ask which edition of the residential code and the electrical code it enforces, and whether it changed any GFCI section.
Ask whether the electrical part of your remodel needs a permit. IRC section R105.1 says: "Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this code, or to cause any such work to be performed, shall first make application to the building official and obtain the required permit."
Source: 2021 International Residential Code, Chapter 1 Scope and Administration, International Code Council online text, read 22 October 2026 (our saved browser copy, as read on 2026-10-22).
Ask each bidder to list, in writing, every receptacle in the remodeled rooms and how each one gets GFCI protection: a GFCI receptacle, a GFCI breaker, or a protected receptacle upstream on the same circuit.
Ask where each GFCI device will sit, so you can reach it to reset it after it trips.
Ask whether receptacles outside the remodeled room, such as a hallway outlet near the tub, are part of the scope.
If you plan to do any of the wiring yourself, read the CPSC sheet first. It says: "When in doubt about the proper procedure, contact a qualified electrician; do not attempt to install it yourself."
Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.
After the work is done, test each GFCI. The CPSC sheet says "Test every GFCI:" and lists, among its times, "At least once a month" and "After a power failure".
Source: U.S. Consumer Product Safety Commission, CPSC Fact Sheet What Is a GFCI? (Pub. 099), read 22 October 2026.

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Does a kitchen or bathroom remodel need GFCI outlets?

Key facts

Which bathroom receptacles need GFCI protection under the IRC?

Which kitchen outlets does the IRC list for GFCI protection?

Which GFCI rules apply to remodeling an older room?

Does the GFCI have to be in the outlet itself?

What should you ask before a kitchen or bath remodel starts?

Who sees your contact details when you post on InstaBids?

Sources for the facts on this page