diff --git a/tests/core/pyspec/eth2spec/test/altair/block_processing/sync_aggregate/test_process_sync_aggregate.py b/tests/core/pyspec/eth2spec/test/altair/block_processing/sync_aggregate/test_process_sync_aggregate.py
index 37e4439ee..f1a270092 100644
--- a/tests/core/pyspec/eth2spec/test/altair/block_processing/sync_aggregate/test_process_sync_aggregate.py
+++ b/tests/core/pyspec/eth2spec/test/altair/block_processing/sync_aggregate/test_process_sync_aggregate.py
@@ -24,6 +24,11 @@ from eth2spec.test.context import (
     with_presets,
     spec_state_test,
     always_bls,
+    single_phase,
+    with_custom_state,
+    spec_test,
+    default_balances_electra,
+    default_activation_threshold,
 )
 
 
@@ -143,7 +148,9 @@ def is_duplicate_sync_committee(committee_indices):
 
 @with_altair_and_later
 @with_presets([MINIMAL], reason="to create nonduplicate committee")
-@spec_state_test
+@spec_test
+@with_custom_state(balances_fn=default_balances_electra, threshold_fn=default_activation_threshold)
+@single_phase
 def test_sync_committee_rewards_nonduplicate_committee(spec, state):
     committee_indices = compute_committee_indices(state)
 
diff --git a/tests/core/pyspec/eth2spec/test/altair/block_processing/sync_aggregate/test_process_sync_aggregate_random.py b/tests/core/pyspec/eth2spec/test/altair/block_processing/sync_aggregate/test_process_sync_aggregate_random.py
index a402e3d54..792bcb0e3 100644
--- a/tests/core/pyspec/eth2spec/test/altair/block_processing/sync_aggregate/test_process_sync_aggregate_random.py
+++ b/tests/core/pyspec/eth2spec/test/altair/block_processing/sync_aggregate/test_process_sync_aggregate_random.py
@@ -24,6 +24,8 @@ from eth2spec.test.context import (
     with_custom_state,
     with_presets,
     spec_test,
+    default_balances_electra,
+    misc_balances_electra,
 )
 
 
@@ -132,7 +134,9 @@ def test_random_with_exits_with_duplicates(spec, state):
 
 @with_altair_and_later
 @with_presets([MINIMAL], reason="to create nonduplicate committee")
-@spec_state_test
+@spec_test
+@with_custom_state(balances_fn=default_balances_electra, threshold_fn=default_activation_threshold)
+@single_phase
 def test_random_only_one_participant_without_duplicates(spec, state):
     rng = random.Random(501)
     yield from _test_harness_for_randomized_test_case(
@@ -144,7 +148,9 @@ def test_random_only_one_participant_without_duplicates(spec, state):
 
 @with_altair_and_later
 @with_presets([MINIMAL], reason="to create nonduplicate committee")
-@spec_state_test
+@spec_test
+@with_custom_state(balances_fn=default_balances_electra, threshold_fn=default_activation_threshold)
+@single_phase
 def test_random_low_participation_without_duplicates(spec, state):
     rng = random.Random(601)
     yield from _test_harness_for_randomized_test_case(
@@ -156,7 +162,9 @@ def test_random_low_participation_without_duplicates(spec, state):
 
 @with_altair_and_later
 @with_presets([MINIMAL], reason="to create nonduplicate committee")
-@spec_state_test
+@spec_test
+@with_custom_state(balances_fn=default_balances_electra, threshold_fn=default_activation_threshold)
+@single_phase
 def test_random_high_participation_without_duplicates(spec, state):
     rng = random.Random(701)
     yield from _test_harness_for_randomized_test_case(
@@ -168,7 +176,9 @@ def test_random_high_participation_without_duplicates(spec, state):
 
 @with_altair_and_later
 @with_presets([MINIMAL], reason="to create nonduplicate committee")
-@spec_state_test
+@spec_test
+@with_custom_state(balances_fn=default_balances_electra, threshold_fn=default_activation_threshold)
+@single_phase
 def test_random_all_but_one_participating_without_duplicates(spec, state):
     rng = random.Random(801)
     yield from _test_harness_for_randomized_test_case(
@@ -181,7 +191,7 @@ def test_random_all_but_one_participating_without_duplicates(spec, state):
 @with_altair_and_later
 @with_presets([MINIMAL], reason="to create nonduplicate committee")
 @spec_test
-@with_custom_state(balances_fn=misc_balances, threshold_fn=default_activation_threshold)
+@with_custom_state(balances_fn=misc_balances_electra, threshold_fn=default_activation_threshold)
 @single_phase
 def test_random_misc_balances_and_half_participation_without_duplicates(spec, state):
     rng = random.Random(1501)
@@ -194,7 +204,8 @@ def test_random_misc_balances_and_half_participation_without_duplicates(spec, st
 
 @with_altair_and_later
 @with_presets([MINIMAL], reason="to create nonduplicate committee")
-@spec_state_test
+@spec_test
+@with_custom_state(balances_fn=default_balances_electra, threshold_fn=default_activation_threshold)
 @single_phase
 def test_random_with_exits_without_duplicates(spec, state):
     rng = random.Random(1502)
diff --git a/tests/core/pyspec/eth2spec/test/context.py b/tests/core/pyspec/eth2spec/test/context.py
index ff2ab80b5..e805e1c12 100644
--- a/tests/core/pyspec/eth2spec/test/context.py
+++ b/tests/core/pyspec/eth2spec/test/context.py
@@ -16,7 +16,7 @@ from .helpers.constants import (
     ALLOWED_TEST_RUNNER_FORKS,
     LIGHT_CLIENT_TESTING_FORKS,
 )
-from .helpers.forks import is_post_fork
+from .helpers.forks import is_post_fork, is_post_electra
 from .helpers.genesis import create_genesis_state
 from .helpers.typing import (
     Spec,
@@ -86,7 +86,10 @@ def default_activation_threshold(spec: Spec):
     Helper method to use the default balance activation threshold for state creation for tests.
     Usage: `@with_custom_state(threshold_fn=default_activation_threshold, ...)`
     """
-    return spec.MAX_EFFECTIVE_BALANCE
+    if is_post_electra(spec):
+        return spec.MIN_ACTIVATION_BALANCE
+    else:
+        return spec.MAX_EFFECTIVE_BALANCE
 
 
 def zero_activation_threshold(spec: Spec):
@@ -106,6 +109,18 @@ def default_balances(spec: Spec):
     return [spec.MAX_EFFECTIVE_BALANCE] * num_validators
 
 
+def default_balances_electra(spec: Spec):
+    """
+    Helper method to create a series of default balances for Electra.
+    Usage: `@with_custom_state(balances_fn=default_balances_electra, ...)`
+    """
+    if not is_post_electra(spec):
+        return default_balances(spec)
+
+    num_validators = spec.SLOTS_PER_EPOCH * 8
+    return [spec.MAX_EFFECTIVE_BALANCE_ELECTRA] * num_validators
+
+
 def scaled_churn_balances_min_churn_limit(spec: Spec):
     """
     Helper method to create enough validators to scale the churn limit.
@@ -175,6 +190,21 @@ def misc_balances(spec: Spec):
     return balances
 
 
+def misc_balances_electra(spec: Spec):
+    """
+    Helper method to create a series of balances that includes some misc. balances for Electra.
+    Usage: `@with_custom_state(balances_fn=misc_balances, ...)`
+    """
+    if not is_post_electra(spec):
+        return misc_balances(spec)
+
+    num_validators = spec.SLOTS_PER_EPOCH * 8
+    balances = [spec.MAX_EFFECTIVE_BALANCE_ELECTRA * 2 * i // num_validators for i in range(num_validators)]
+    rng = Random(1234)
+    rng.shuffle(balances)
+    return balances
+
+
 def misc_balances_in_default_range_with_many_validators(spec: Spec):
     """
     Helper method to create a series of balances that includes some misc. balances but
diff --git a/tests/core/pyspec/eth2spec/test/helpers/genesis.py b/tests/core/pyspec/eth2spec/test/helpers/genesis.py
index 3896b4173..ab274b757 100644
--- a/tests/core/pyspec/eth2spec/test/helpers/genesis.py
+++ b/tests/core/pyspec/eth2spec/test/helpers/genesis.py
@@ -15,8 +15,23 @@ from eth2spec.test.helpers.whisk import compute_whisk_initial_tracker_cached, co
 def build_mock_validator(spec, i: int, balance: int):
     active_pubkey = pubkeys[i]
     withdrawal_pubkey = pubkeys[-1 - i]
-    # insecurely use pubkey as withdrawal key as well
-    withdrawal_credentials = spec.BLS_WITHDRAWAL_PREFIX + spec.hash(withdrawal_pubkey)[1:]
+    if is_post_electra(spec):
+        if balance > spec.MIN_ACTIVATION_BALANCE:
+            # use compounding withdrawal credentials if the balance is higher than MIN_ACTIVATION_BALANCE
+            withdrawal_credentials = (
+                spec.COMPOUNDING_WITHDRAWAL_PREFIX
+                + b'\x00' * 11
+                + spec.hash(withdrawal_pubkey)[12:]
+            )
+        else:
+            # insecurely use pubkey as withdrawal key as well
+            withdrawal_credentials = spec.BLS_WITHDRAWAL_PREFIX + spec.hash(withdrawal_pubkey)[1:]
+        max_effective_balace = spec.MAX_EFFECTIVE_BALANCE_ELECTRA
+    else:
+        # insecurely use pubkey as withdrawal key as well
+        withdrawal_credentials = spec.BLS_WITHDRAWAL_PREFIX + spec.hash(withdrawal_pubkey)[1:]
+        max_effective_balace = spec.MAX_EFFECTIVE_BALANCE
+
     validator = spec.Validator(
         pubkey=active_pubkey,
         withdrawal_credentials=withdrawal_credentials,
@@ -24,7 +39,7 @@ def build_mock_validator(spec, i: int, balance: int):
         activation_epoch=spec.FAR_FUTURE_EPOCH,
         exit_epoch=spec.FAR_FUTURE_EPOCH,
         withdrawable_epoch=spec.FAR_FUTURE_EPOCH,
-        effective_balance=min(balance - balance % spec.EFFECTIVE_BALANCE_INCREMENT, spec.MAX_EFFECTIVE_BALANCE)
+        effective_balance=min(balance - balance % spec.EFFECTIVE_BALANCE_INCREMENT, max_effective_balace)
     )
 
     return validator
diff --git a/tests/core/pyspec/eth2spec/test/phase0/genesis/test_initialization.py b/tests/core/pyspec/eth2spec/test/phase0/genesis/test_initialization.py
index 4c7c5f28c..f1c306472 100644
--- a/tests/core/pyspec/eth2spec/test/phase0/genesis/test_initialization.py
+++ b/tests/core/pyspec/eth2spec/test/phase0/genesis/test_initialization.py
@@ -11,6 +11,7 @@ from eth2spec.test.helpers.deposits import (
 )
 from eth2spec.test.helpers.forks import (
     is_post_altair,
+    is_post_electra,
 )
 
 
@@ -69,9 +70,14 @@ def test_initialize_beacon_state_some_small_balances(spec):
     if is_post_altair(spec):
         yield 'description', 'meta', get_post_altair_description(spec)
 
+    if is_post_electra(spec):
+        max_effective_balance = spec.MAX_EFFECTIVE_BALANCE_ELECTRA
+    else:
+        max_effective_balance = spec.MAX_EFFECTIVE_BALANCE
+
     main_deposit_count = spec.config.MIN_GENESIS_ACTIVE_VALIDATOR_COUNT
     main_deposits, _, deposit_data_list = prepare_full_genesis_deposits(
-        spec, spec.MAX_EFFECTIVE_BALANCE,
+        spec, max_effective_balance,
         deposit_count=main_deposit_count, signed=True,
     )
     # For deposits above, and for another deposit_count, add a balance of EFFECTIVE_BALANCE_INCREMENT
@@ -99,7 +105,7 @@ def test_initialize_beacon_state_some_small_balances(spec):
     assert state.eth1_data.deposit_count == len(deposits)
     assert state.eth1_data.block_hash == eth1_block_hash
     # only main deposits participate to the active balance
-    assert spec.get_total_active_balance(state) == main_deposit_count * spec.MAX_EFFECTIVE_BALANCE
+    assert spec.get_total_active_balance(state) == main_deposit_count * max_effective_balance
 
     # yield state
     yield 'state', state