diff --git a/src/Makefile.test_util.include b/src/Makefile.test_util.include
index d7bc73defb..baf7ab0e79 100644
--- a/src/Makefile.test_util.include
+++ b/src/Makefile.test_util.include
@@ -9,6 +9,7 @@ EXTRA_LIBRARIES += \
 
 TEST_UTIL_H = \
     test/util/blockfilter.h \
+    test/util/index.h \
     test/util/logging.h \
     test/util/mining.h \
     test/util/net.h \
@@ -21,6 +22,7 @@ libtest_util_a_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) $(MINIUPNPC_CPPFLAG
 libtest_util_a_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
 libtest_util_a_SOURCES = \
   test/util/blockfilter.cpp \
+  test/util/index.cpp \
   test/util/logging.cpp \
   test/util/mining.cpp \
   test/util/net.cpp \
diff --git a/src/test/blockfilter_index_tests.cpp b/src/test/blockfilter_index_tests.cpp
index 5a84d51ae6..c3a3701f09 100644
--- a/src/test/blockfilter_index_tests.cpp
+++ b/src/test/blockfilter_index_tests.cpp
@@ -17,8 +17,8 @@
 #include <script/standard.h>
 #include <spork.h>
 #include <test/util/blockfilter.h>
+#include <test/util/index.h>
 #include <test/util/setup_common.h>
-#include <util/time.h>
 #include <validation.h>
 
 #include <boost/test/unit_test.hpp>
@@ -141,12 +141,7 @@ BOOST_FIXTURE_TEST_CASE(blockfilter_index_initial_sync, BuildChainTestingSetup)
     BOOST_REQUIRE(filter_index.Start(::ChainstateActive()));
 
     // Allow filter index to catch up with the block index.
-    constexpr auto timeout{10s};
-    const auto time_start{SteadyClock::now()};
-    while (!filter_index.BlockUntilSyncedToCurrentChain()) {
-        BOOST_REQUIRE(time_start + timeout > SteadyClock::now());
-        UninterruptibleSleep(std::chrono::milliseconds{100});
-    }
+    IndexWaitSynced(filter_index);
 
     // Check that filter index has all blocks that were in the chain before it started.
     {
diff --git a/src/test/coinstatsindex_tests.cpp b/src/test/coinstatsindex_tests.cpp
index a21c073a93..466f0a84c8 100644
--- a/src/test/coinstatsindex_tests.cpp
+++ b/src/test/coinstatsindex_tests.cpp
@@ -3,28 +3,15 @@
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <index/coinstatsindex.h>
+#include <test/util/index.h>
 #include <test/util/setup_common.h>
 #include <util/time.h>
 #include <validation.h>
 
 #include <boost/test/unit_test.hpp>
 
-#include <chrono>
-
-
 BOOST_AUTO_TEST_SUITE(coinstatsindex_tests)
 
-static void IndexWaitSynced(BaseIndex& index)
-{
-    // Allow the CoinStatsIndex to catch up with the block index that is syncing
-    // in a background thread.
-    const auto timeout = GetTime<std::chrono::seconds>() + 120s;
-    while (!index.BlockUntilSyncedToCurrentChain()) {
-        BOOST_REQUIRE(timeout > GetTime<std::chrono::milliseconds>());
-        UninterruptibleSleep(100ms);
-    }
-}
-
 BOOST_FIXTURE_TEST_CASE(coinstatsindex_initial_sync, TestChain100Setup)
 {
     CoinStatsIndex coin_stats_index{1 << 20, true};
diff --git a/src/test/txindex_tests.cpp b/src/test/txindex_tests.cpp
index 2a35c55db0..6ef045a95a 100644
--- a/src/test/txindex_tests.cpp
+++ b/src/test/txindex_tests.cpp
@@ -5,8 +5,8 @@
 #include <chainparams.h>
 #include <index/txindex.h>
 #include <script/standard.h>
+#include <test/util/index.h>
 #include <test/util/setup_common.h>
-#include <util/time.h>
 #include <validation.h>
 
 #include <boost/test/unit_test.hpp>
@@ -31,12 +31,7 @@ BOOST_FIXTURE_TEST_CASE(txindex_initial_sync, TestChain100Setup)
     BOOST_REQUIRE(txindex.Start(::ChainstateActive()));
 
     // Allow tx index to catch up with the block index.
-    constexpr auto timeout{10s};
-    const auto time_start{SteadyClock::now()};
-    while (!txindex.BlockUntilSyncedToCurrentChain()) {
-        BOOST_REQUIRE(time_start + timeout > SteadyClock::now());
-        UninterruptibleSleep(std::chrono::milliseconds{100});
-    }
+    IndexWaitSynced(txindex);
 
     // Check that txindex excludes genesis block transactions.
     const CBlock& genesis_block = Params().GenesisBlock();
diff --git a/src/test/util/index.cpp b/src/test/util/index.cpp
new file mode 100644
index 0000000000..2bda7b1773
--- /dev/null
+++ b/src/test/util/index.cpp
@@ -0,0 +1,18 @@
+// Copyright (c) 2020-2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <test/util/index.h>
+
+#include <index/base.h>
+#include <util/check.h>
+#include <util/time.h>
+
+void IndexWaitSynced(BaseIndex& index)
+{
+    const auto timeout{SteadyClock::now() + 120s};
+    while (!index.BlockUntilSyncedToCurrentChain()) {
+        Assert(timeout > SteadyClock::now());
+        UninterruptibleSleep(100ms);
+    }
+}
diff --git a/src/test/util/index.h b/src/test/util/index.h
new file mode 100644
index 0000000000..02030fd562
--- /dev/null
+++ b/src/test/util/index.h
@@ -0,0 +1,13 @@
+// Copyright (c) 2020-2022 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_TEST_UTIL_INDEX_H
+#define BITCOIN_TEST_UTIL_INDEX_H
+
+class BaseIndex;
+
+/** Block until the index is synced to the current chain */
+void IndexWaitSynced(BaseIndex& index);
+
+#endif // BITCOIN_TEST_UTIL_INDEX_H