diff --git a/config-schema.dhall b/config-schema.dhall
index 82fe73c61c5561ceea3c95453ea80b212858edee..1b3aa07a4f6dcb5f95d733e9894c59d28f6ce9f1 100644
--- a/config-schema.dhall
+++ b/config-schema.dhall
@@ -27,6 +27,7 @@
 , notify_from : Text
 , ogm_path : Text
 , ogm_web_root : Text
+, onboarding_domain : Text
 , oxr_app_id : Text
 , payable : Text
 , plans :
diff --git a/config.dhall.sample b/config.dhall.sample
index 52686a7fbe41dbc8c173715de26d35fba85621e2..839f07a5f25110ed86cf1de8e9444fbd6f54cd69 100644
--- a/config.dhall.sample
+++ b/config.dhall.sample
@@ -82,6 +82,7 @@ in
 	keep_area_codes = ["555"],
 	keep_area_codes_in = { account = "", site_id = "", sip_peer_id = "" },
 	snikket_hosting_api = "",
+	onboarding_domain = "",
 	rev_ai_token = "",
 	upstream_domain = "example.net",
 	approved_domains = toMap { `example.com` = Some "customer_id" },
diff --git a/forms/alt_top_up/interac.rb b/forms/alt_top_up/interac.rb
index 18fb7666b74434d7388f807ece2715ccc8761cf3..9b7c7063893f0808b0f24c32ab821d44d08674da 100644
--- a/forms/alt_top_up/interac.rb
+++ b/forms/alt_top_up/interac.rb
@@ -2,6 +2,6 @@ field(
 	var: "interac_email",
 	type: "fixed",
 	label: "Interac e-Transfer Address",
-	description: "Please include your Jabber ID in the note",
+	description: "Please include your #{@in_note || 'Jabber ID'} in the note",
 	value: CONFIG[:interac]
 )
diff --git a/forms/alt_top_up/mailing_address.rb b/forms/alt_top_up/mailing_address.rb
index 1feb7e6767c9aa64426bf8ee67d7b11073b6d3f2..c2f596d9619acd2dd9e638436a77e082a06dbdc9 100644
--- a/forms/alt_top_up/mailing_address.rb
+++ b/forms/alt_top_up/mailing_address.rb
@@ -4,6 +4,6 @@ field(
 	label: "Mailing Address",
 	description:
 		"Make payable to #{CONFIG[:payable]} and include your " \
-		"Jabber ID in the mailing somewhere.",
+		"#{@in_note || 'Jabber ID'} in the mailing somewhere.",
 	value: CONFIG[:adr]
 )
diff --git a/forms/registration/btc.rb b/forms/registration/btc.rb
new file mode 100644
index 0000000000000000000000000000000000000000..9451e7681766b01b0f09266c326ecaa6d3fb1706
--- /dev/null
+++ b/forms/registration/btc.rb
@@ -0,0 +1,19 @@
+result!
+title "Activate using Bitcoin"
+
+field(
+	label: "Minimum initial Bitcoin deposit for activation",
+	var: "amount",
+	value: "%.6f" % @amount
+)
+
+field(
+	label: "Bitcoin address",
+	var: "btc_addresses",
+	value: @addr
+)
+
+instructions(
+	"You will received a notification when your payment is complete." \
+	"#{@final_message}"
+)
diff --git a/forms/registration/mail.rb b/forms/registration/mail.rb
index eef0dfd28ea09a3d43ba8dff616bf117ef1dde30..f801b0fd76f8622f11759dfbcab596ab1655d695 100644
--- a/forms/registration/mail.rb
+++ b/forms/registration/mail.rb
@@ -9,5 +9,13 @@ instructions(
 	"#{@final_message}"
 )
 
+if @customer_id
+	field(
+		label: "Customer ID",
+		var: "customer_id",
+		value: @customer_id
+	)
+end
+
 render "alt_top_up/mailing_address"
 render "alt_top_up/interac" if @currency == :CAD
diff --git a/lib/registration.rb b/lib/registration.rb
index c50b806255d938128849854a76999c237159f156..f4afc671130e6a3ac3bbc6a473584c7505405bf1 100644
--- a/lib/registration.rb
+++ b/lib/registration.rb
@@ -188,14 +188,15 @@ class Registration
 				REDIS.setex("pending_tel_for-#{@customer.jid}", THIRTY_DAYS, tel)
 			end
 
-			def note_text(rate, addr)
+			def form(rate, addr)
 				amount = CONFIG[:activation_amount] / rate
-				<<~NOTE
-					Activate your account by sending at least #{'%.6f' % amount} BTC to
-					#{addr}
 
-					You will receive a notification when your payment is complete.
-				NOTE
+				FormTemplate.render(
+					"registration/btc",
+					amount: amount,
+					addr: addr,
+					final_message: @final_message
+				)
 			end
 
 			def write
@@ -203,8 +204,7 @@ class Registration
 					Command.reply { |reply|
 						reply.allowed_actions = [:prev]
 						reply.status = :canceled
-						reply.note_type = :info
-						reply.note_text = note_text(rate, addr) + @final_message.to_s
+						reply.command << form(rate, addr)
 					}.then(&method(:handle_possible_prev))
 				end
 			end
@@ -418,10 +418,21 @@ class Registration
 				FormTemplate.render(
 					"registration/mail",
 					currency: @customer.currency,
-					final_message: @final_message
+					final_message: @final_message,
+					**onboarding_extras
 				)
 			end
 
+			def onboarding_extras
+				jid = ProxiedJID.new(@customer.jid).unproxied
+				return {} unless jid.domain == CONFIG[:onboarding_domain]
+
+				{
+					customer_id: @customer.customer_id,
+					in_note: "Customer ID"
+				}
+			end
+
 			def write
 				Command.reply { |reply|
 					reply.allowed_actions = [:prev]
diff --git a/test/test_registration.rb b/test/test_registration.rb
index e04ce53b6847d8c98cbddfebfa7fdd17e6ad3443..fca1b8d5ec2b81c2b0a3e29093c40c17574a3eff 100644
--- a/test/test_registration.rb
+++ b/test/test_registration.rb
@@ -340,20 +340,14 @@ class RegistrationTest < Minitest::Test
 					EMPromise.resolve([]),
 					["jmp_customer_btc_addresses-test"]
 				)
-				reply_text = <<~NOTE
-					Activate your account by sending at least 1.000000 BTC to
-					testaddr
-
-					You will receive a notification when your payment is complete.
-				NOTE
 				blather = Minitest::Mock.new
 				Command::COMMAND_MANAGER.expect(
 					:write,
 					EMPromise.reject(SessionManager::Timeout.new),
 					[Matching.new do |reply|
 						assert_equal :canceled, reply.status
-						assert_equal :info, reply.note_type
-						assert_equal reply_text, reply.note.content
+						assert_equal "1.000000", reply.form.field("amount").value
+						assert_equal "testaddr", reply.form.field("btc_addresses").value
 						true
 					end]
 				)