diff --git a/index.md b/index.md
index 21576d77..5feb2a24 100644
--- a/index.md
+++ b/index.md
@@ -23,7 +23,8 @@
   <div class="main-links hidden-xs">
     <a href="/whatsyunohost">About</a> <span class="colored-bar">•</span> 
     <a href="https://forum.yunohost.org/c/announcement" target="_blank">Latest news</a> <span class="colored-bar">•</span> 
-    <a href="/docs">Documentation</a>
+    <a href="/docs">Documentation</a> <span class="colored-bar">•</span> 
+    <a href="https://donate.yunohost.org/">Donate</a>
   </div>
 
 </div><!-- teasing-part -->
diff --git a/index_ar.md b/index_ar.md
index 1e6f7574..3a495680 100644
--- a/index_ar.md
+++ b/index_ar.md
@@ -20,7 +20,8 @@
   <div dir="auto" class="main-links hidden-xs">
     <a href="/whatsyunohost">عن واي يونوهوست</a> <span class="colored-bar">•</span> 
     <a href="https://forum.yunohost.org/c/announcement" target="_blank">آخر المستجدات</a> <span class="colored-bar">•</span> 
-    <a href="/docs_ar">المستندات</a>
+    <a href="/docs_ar">المستندات</a> <span class="colored-bar">•</span> 
+    <a href="https://donate.yunohost.org/">تبرع/a>
   </div>
 
 </div><!-- teasing-part -->
diff --git a/index_de.md b/index_de.md
index 5f679c8a..b324ad47 100644
--- a/index_de.md
+++ b/index_de.md
@@ -24,7 +24,8 @@
   <div class="main-links hidden-xs">
     <a href="/whatsyunohost">Über Yunohost</a> <span class="colored-bar">•</span> 
     <a href="https://forum.yunohost.org/c/announcement" target="_blank">Letzte Nachrichten</a> <span class="colored-bar">•</span> 
-    <a href="/docs">Dokumentation</a>
+    <a href="/docs">Dokumentation</a> <span class="colored-bar">•</span> 
+    <a href="https://donate.yunohost.org/">Spenden</a>
   </div>
   </div><!-- teasing-part -->
 
diff --git a/index_es.md b/index_es.md
index b28e306c..b408427d 100644
--- a/index_es.md
+++ b/index_es.md
@@ -23,7 +23,8 @@
   <div class="main-links hidden-xs">
     <a href="/whatsyunohost">Acerca de</a> <span class="colored-bar">•</span> 
     <a href="https://forum.yunohost.org/c/announcement" target="_blank">Últimas noticias</a> <span class="colored-bar">•</span> 
-    <a href="/docs">Documentación</a>
+    <a href="/docs">Documentación</a> <span class="colored-bar">•</span> 
+    <a href="https://donate.yunohost.org/">Donar</a>
   </div>
 
 </div><!-- teasing-part -->
diff --git a/index_fr.md b/index_fr.md
index d358e760..9dd58f21 100644
--- a/index_fr.md
+++ b/index_fr.md
@@ -19,7 +19,8 @@
   <div class="main-links hidden-xs">
     <a href="/whatsyunohost_fr">À propos</a> <span class="colored-bar">•</span> 
     <a href="https://forum.yunohost.org/c/announcement" target="_blank">Dernières nouvelles</a> <span class="colored-bar">•</span> 
-    <a href="/docs_fr">Documentation</a>
+    <a href="/docs_fr">Documentation</a> <span class="colored-bar">•</span> 
+    <a href="https://donate.yunohost.org/">Faire un don</a>
   </div>
 
 </div><!-- teasing-part -->
diff --git a/index_it.md b/index_it.md
index ee0bc581..870ec5c3 100644
--- a/index_it.md
+++ b/index_it.md
@@ -24,7 +24,8 @@
   <div class="main-links hidden-xs">
     <a href="/whatsyunohost">A proposito</a> <span class="colored-bar">•</span> 
     <a href="https://forum.yunohost.org/c/announcement" target="_blank">Ultime notizie</a> <span class="colored-bar">•</span> 
-    <a href="/docs">Documentazione</a>
+    <a href="/docs">Documentazione</a> <span class="colored-bar">•</span> 
+    <a href="https://donate.yunohost.org/">Donare</a>
   </div>
 
 </div><!-- teasing-part -->
diff --git a/project_budget.md b/project_budget.md
new file mode 100644
index 00000000..9d461450
--- /dev/null
+++ b/project_budget.md
@@ -0,0 +1,28 @@
+# Project budget
+
+# Estimated budget for 2019/2020
+
+## Expected revenues
+
+* Donations via Liberapay: current is about 45€/week, so about 2340€/year
+* Grant from NLNet: 20K€, to be used for R&D (TODO: publish the project plan once validated with NLnet)
+
+## Expected expenses
+
+* Server renting: ~1000€
+   * Forum: 14.4€/month: 172.80€/year
+   * CI: 20€/month (to be confirmed): 240€/year
+   * Bearnaise server migration to a new machine: 587.2€
+* Domain names: ~150€
+   * nohost.me: 11.99€HT/year
+   * ynh.fr: 6.99€HT/year (to be confirmed with frju?)
+   * noho.st: ~35€ TTC/year
+   * YunoHost.org: 13.99€HT/year
+   * YunoHost.com: 9.99€HT/year
+   * labriqueinter.net: 12.49€Ht/year
+   * internetcu.be: 17.99€HT/year
+* Communication: ~200€
+* Travel (e.g. to go to conferences): ~500€
+* Bank account fees: 7x12€ => ~100€
+
+**Total**: about 2000€