diff --git a/internal/cloud/backend.go b/internal/cloud/backend.go
index 6f64a9476c..a5ced6c12e 100644
--- a/internal/cloud/backend.go
+++ b/internal/cloud/backend.go
@@ -89,6 +89,10 @@ type Cloud struct {
 	ignoreVersionConflict bool
 
 	runningInAutomation bool
+
+	// input stores the value of the -input flag, since it will be used
+	// to determine whether or not to ask the user for approval of a run.
+	input bool
 }
 
 var _ backend.Backend = (*Cloud)(nil)
diff --git a/internal/cloud/backend_apply.go b/internal/cloud/backend_apply.go
index 85c447e602..ff22dd5a90 100644
--- a/internal/cloud/backend_apply.go
+++ b/internal/cloud/backend_apply.go
@@ -100,7 +100,7 @@ func (b *Cloud) opApply(stopCtx, cancelCtx context.Context, op *backend.Operatio
 
 	mustConfirm := (op.UIIn != nil && op.UIOut != nil) && !op.AutoApprove
 
-	if mustConfirm {
+	if mustConfirm && b.input {
 		opts := &terraform.InputOpts{Id: "approve"}
 
 		if op.PlanMode == plans.DestroyMode {
@@ -117,6 +117,8 @@ func (b *Cloud) opApply(stopCtx, cancelCtx context.Context, op *backend.Operatio
 		if err != nil && err != errRunApproved {
 			return r, err
 		}
+	} else if mustConfirm && !b.input {
+		return r, errApplyNeedsUIConfirmation
 	} else {
 		// If we don't need to ask for confirmation, insert a blank
 		// line to separate the ouputs.
diff --git a/internal/cloud/backend_cli.go b/internal/cloud/backend_cli.go
index cd05496163..62eb834cac 100644
--- a/internal/cloud/backend_cli.go
+++ b/internal/cloud/backend_cli.go
@@ -16,6 +16,7 @@ func (b *Cloud) CLIInit(opts *backend.CLIOpts) error {
 	b.CLIColor = opts.CLIColor
 	b.ContextOpts = opts.ContextOpts
 	b.runningInAutomation = opts.RunningInAutomation
+	b.input = opts.Input
 
 	return nil
 }
diff --git a/internal/cloud/backend_common.go b/internal/cloud/backend_common.go
index 05fbadfba1..2f17ff5788 100644
--- a/internal/cloud/backend_common.go
+++ b/internal/cloud/backend_common.go
@@ -3,7 +3,6 @@ package cloud
 import (
 	"bufio"
 	"context"
-	"errors"
 	"fmt"
 	"io"
 	"math"
@@ -17,14 +16,6 @@ import (
 	"github.com/hashicorp/terraform/internal/terraform"
 )
 
-var (
-	errApplyDiscarded   = errors.New("Apply discarded.")
-	errDestroyDiscarded = errors.New("Destroy discarded.")
-	errRunApproved      = errors.New("approved using the UI or API")
-	errRunDiscarded     = errors.New("discarded using the UI or API")
-	errRunOverridden    = errors.New("overridden using the UI or API")
-)
-
 var (
 	backoffMin = 1000.0
 	backoffMax = 3000.0
@@ -388,6 +379,8 @@ func (b *Cloud) checkPolicy(stopCtx, cancelCtx context.Context, op *backend.Oper
 				if _, err = b.client.PolicyChecks.Override(stopCtx, pc.ID); err != nil {
 					return generalError(fmt.Sprintf("Failed to override policy check.\n%s", runUrl), err)
 				}
+			} else if !b.input {
+				return errPolicyOverrideNeedsUIConfirmation
 			} else {
 				opts := &terraform.InputOpts{
 					Id:          "override",
diff --git a/internal/cloud/e2e/apply_no_input_flag_test.go b/internal/cloud/e2e/apply_no_input_flag_test.go
new file mode 100644
index 0000000000..1836f730b3
--- /dev/null
+++ b/internal/cloud/e2e/apply_no_input_flag_test.go
@@ -0,0 +1,58 @@
+package main
+
+import (
+	"testing"
+)
+
+func Test_apply_no_input_flag(t *testing.T) {
+	t.Parallel()
+	skipIfMissingEnvVar(t)
+
+	cases := testCases{
+		"terraform apply with -input=false": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						wsName := "new-workspace"
+						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-input=false"},
+							expectedCmdOutput: `Terraform Cloud has been successfully initialized`,
+						},
+						{
+							command:           []string{"apply", "-input=false"},
+							expectedCmdOutput: `Cannot confirm apply due to -input=false. Please handle run confirmation in the UI.`,
+							expectError:       true,
+						},
+					},
+				},
+			},
+		},
+		"terraform apply with auto approve and -input=false": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						wsName := "cloud-workspace"
+						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-input=false"},
+							expectedCmdOutput: `Terraform Cloud has been successfully initialized`,
+						},
+						{
+							command:           []string{"apply", "-auto-approve", "-input=false"},
+							expectedCmdOutput: `Apply complete!`,
+						},
+					},
+				},
+			},
+		},
+	}
+
+	testRunner(t, cases, 1)
+}
diff --git a/internal/cloud/errors.go b/internal/cloud/errors.go
index f387a37538..cf668516f3 100644
--- a/internal/cloud/errors.go
+++ b/internal/cloud/errors.go
@@ -1,6 +1,7 @@
 package cloud
 
 import (
+	"errors"
 	"fmt"
 	"strings"
 
@@ -8,6 +9,18 @@ import (
 	"github.com/zclconf/go-cty/cty"
 )
 
+// String based errors
+var (
+	errApplyDiscarded                    = errors.New("Apply discarded.")
+	errDestroyDiscarded                  = errors.New("Destroy discarded.")
+	errRunApproved                       = errors.New("approved using the UI or API")
+	errRunDiscarded                      = errors.New("discarded using the UI or API")
+	errRunOverridden                     = errors.New("overridden using the UI or API")
+	errApplyNeedsUIConfirmation          = errors.New("Cannot confirm apply due to -input=false. Please handle run confirmation in the UI.")
+	errPolicyOverrideNeedsUIConfirmation = errors.New("Cannot override soft failed policy checks when -input=false. Please open the run in the UI to override.")
+)
+
+// Diagnostic error messages
 var (
 	invalidWorkspaceConfigMissingValues = tfdiags.AttributeValue(
 		tfdiags.Error,
diff --git a/internal/cloud/testing.go b/internal/cloud/testing.go
index e5dd538066..4297540fca 100644
--- a/internal/cloud/testing.go
+++ b/internal/cloud/testing.go
@@ -154,6 +154,7 @@ func testBackend(t *testing.T, obj cty.Value) (*Cloud, func()) {
 
 	// Set local to a local test backend.
 	b.local = testLocalBackend(t, b)
+	b.input = true
 
 	ctx := context.Background()